Code Quality: Replace for loops with LISTBASE_FOREACH

Note this only changes cases where the variable was declared inside
the for loop. To handle it outside as well is a different challenge.

Differential Revision: https://developer.blender.org/D7320

207 files changed, 1174 insertions, 1251 deletions

diff --git a/source/blender/blenkernel/intern/anim_data.c b/source/blender/blenkernel/intern/anim_data.c
index cd56796c3cf..41bfc5b59e4 100644
--- a/source/blender/blenkernel/intern/anim_data.c
+++ b/source/blender/blenkernel/intern/anim_data.c
@@ -1130,7 +1130,7 @@ bool BKE_animdata_fix_paths_remove(ID *id, const char *prefix)
     /* free drivers - stored as a list of F-Curves */
     any_removed |= fcurves_path_remove_fix(prefix, &adt->drivers);
     /* NLA Data - Animation Data for Strips */
-    for (NlaTrack *nlt = adt->nla_tracks.first; nlt; nlt = nlt->next) {
+    LISTBASE_FOREACH (NlaTrack *, nlt, &adt->nla_tracks) {
       any_removed |= nlastrips_path_remove_fix(prefix, &nlt->strips);
     }
   }
diff --git a/source/blender/blenkernel/intern/anim_sys.c b/source/blender/blenkernel/intern/anim_sys.c
index 69efac37fbf..18320ef0f8d 100644
--- a/source/blender/blenkernel/intern/anim_sys.c
+++ b/source/blender/blenkernel/intern/anim_sys.c
@@ -542,7 +542,7 @@ static void animsys_evaluate_fcurves(PointerRNA *ptr,
                                      bool flush_to_original)
 {
   /* Calculate then execute each curve. */
-  for (FCurve *fcu = list->first; fcu; fcu = fcu->next) {
+  LISTBASE_FOREACH (FCurve *, fcu, list) {
     /* Check if this F-Curve doesn't belong to a muted group. */
     if ((fcu->grp != NULL) && (fcu->grp->flag & AGRP_MUTED)) {
       continue;
@@ -1095,7 +1095,7 @@ static void nlaeval_free(NlaEvalData *nlaeval)
   nlaeval_snapshot_free_data(&nlaeval->eval_snapshot);
 
   /* Delete channels. */
-  for (NlaEvalChannel *nec = nlaeval->channels.first; nec; nec = nec->next) {
+  LISTBASE_FOREACH (NlaEvalChannel *, nec, &nlaeval->channels) {
     nlaevalchan_free_data(nec);
   }
 
@@ -1954,7 +1954,7 @@ void nladata_flush_channels(PointerRNA *ptr,
   }
 
   /* for each channel with accumulated values, write its value on the property it affects */
-  for (NlaEvalChannel *nec = channels->channels.first; nec; nec = nec->next) {
+  LISTBASE_FOREACH (NlaEvalChannel *, nec, &channels->channels) {
     NlaEvalChannelSnapshot *nec_snapshot = nlaeval_snapshot_find_channel(snapshot, nec);
 
     PathResolvedRNA rna = {nec->key.ptr, nec->key.prop, -1};
@@ -1985,7 +1985,7 @@ static void nla_eval_domain_action(PointerRNA *ptr,
     return;
   }
 
-  for (FCurve *fcu = act->curves.first; fcu; fcu = fcu->next) {
+  LISTBASE_FOREACH (FCurve *, fcu, &act->curves) {
     /* check if this curve should be skipped */
     if (fcu->flag & (FCURVE_MUTED | FCURVE_DISABLED)) {
       continue;
@@ -2020,7 +2020,7 @@ static void nla_eval_domain_strips(PointerRNA *ptr,
                                    ListBase *strips,
                                    GSet *touched_actions)
 {
-  for (NlaStrip *strip = strips->first; strip; strip = strip->next) {
+  LISTBASE_FOREACH (NlaStrip *, strip, strips) {
     /* check strip's action */
     if (strip->act) {
       nla_eval_domain_action(ptr, channels, strip->act, touched_actions);
@@ -2044,7 +2044,7 @@ static void animsys_evaluate_nla_domain(PointerRNA *ptr, NlaEvalData *channels,
   }
 
   /* NLA Data - Animation Data for Strips */
-  for (NlaTrack *nlt = adt->nla_tracks.first; nlt; nlt = nlt->next) {
+  LISTBASE_FOREACH (NlaTrack *, nlt, &adt->nla_tracks) {
     /* solo and muting are mutually exclusive... */
     if (adt->flag & ADT_NLA_SOLO_TRACK) {
       /* skip if there is a solo track, but this isn't it */
@@ -2430,7 +2430,7 @@ bool BKE_animsys_nla_remap_keyframe_values(struct NlaKeyframingContext *context,
  */
 void BKE_animsys_free_nla_keyframing_context_cache(struct ListBase *cache)
 {
-  for (NlaKeyframingContext *ctx = cache->first; ctx; ctx = ctx->next) {
+  LISTBASE_FOREACH (NlaKeyframingContext *, ctx, cache) {
     MEM_SAFE_FREE(ctx->eval_strip);
     nlaeval_free(&ctx->nla_channels);
   }
@@ -2738,7 +2738,7 @@ void BKE_animsys_update_driver_array(ID *id)
     adt->driver_array = MEM_mallocN(sizeof(FCurve *) * num_drivers, "adt->driver_array");
 
     int driver_index = 0;
-    for (FCurve *fcu = adt->drivers.first; fcu; fcu = fcu->next) {
+    LISTBASE_FOREACH (FCurve *, fcu, &adt->drivers) {
       adt->driver_array[driver_index++] = fcu;
     }
   }
diff --git a/source/blender/blenkernel/intern/armature.c b/source/blender/blenkernel/intern/armature.c
index b8d0f8c8c92..daf364432f4 100644
--- a/source/blender/blenkernel/intern/armature.c
+++ b/source/blender/blenkernel/intern/armature.c
@@ -190,7 +190,7 @@ bArmature *BKE_armature_from_object(Object *ob)
 int BKE_armature_bonelist_count(ListBase *lb)
 {
   int i = 0;
-  for (Bone *bone = lb->first; bone; bone = bone->next) {
+  LISTBASE_FOREACH (Bone *, bone, lb) {
     i += 1 + BKE_armature_bonelist_count(&bone->childbase);
   }
 
@@ -303,7 +303,7 @@ static void armature_transform_recurse(ListBase *bonebase,
                                        const Bone *bone_parent,
                                        const float arm_mat_parent_inv[4][4])
 {
-  for (Bone *bone = bonebase->first; bone; bone = bone->next) {
+  LISTBASE_FOREACH (Bone *, bone, bonebase) {
 
     /* Store the initial bone roll in a matrix, this is needed even for child bones
      * so any change in head/tail doesn't cause the roll to change.
@@ -424,7 +424,7 @@ Bone *BKE_armature_find_bone_name(bArmature *arm, const char *name)
 
 static void armature_bone_from_name_insert_recursive(GHash *bone_hash, ListBase *lb)
 {
-  for (Bone *bone = lb->first; bone; bone = bone->next) {
+  LISTBASE_FOREACH (Bone *, bone, lb) {
     BLI_ghash_insert(bone_hash, bone->name, bone);
     armature_bone_from_name_insert_recursive(bone_hash, &bone->childbase);
   }
@@ -474,7 +474,7 @@ bool BKE_armature_bone_flag_test_recursive(const Bone *bone, int flag)
 
 static void armature_refresh_layer_used_recursive(bArmature *arm, ListBase *bones)
 {
-  for (Bone *bone = bones->first; bone; bone = bone->next) {
+  LISTBASE_FOREACH (Bone *, bone, bones) {
     arm->layer_used |= bone->layer;
     armature_refresh_layer_used_recursive(arm, &bone->childbase);
   }
@@ -2701,7 +2701,7 @@ static int rebuild_pose_bone(bPose *pose, Bone *bone, bPoseChannel *parchan, int
  */
 void BKE_pose_clear_pointers(bPose *pose)
 {
-  for (bPoseChannel *pchan = pose->chanbase.first; pchan; pchan = pchan->next) {
+  LISTBASE_FOREACH (bPoseChannel *, pchan, &pose->chanbase) {
     pchan->bone = NULL;
     pchan->child = NULL;
   }
@@ -2709,7 +2709,7 @@ void BKE_pose_clear_pointers(bPose *pose)
 
 void BKE_pose_remap_bone_pointers(bArmature *armature, bPose *pose)
 {
-  for (bPoseChannel *pchan = pose->chanbase.first; pchan; pchan = pchan->next) {
+  LISTBASE_FOREACH (bPoseChannel *, pchan, &pose->chanbase) {
     pchan->bone = BKE_armature_find_bone_name(armature, pchan->name);
   }
 }
diff --git a/source/blender/blenkernel/intern/blender.c b/source/blender/blenkernel/intern/blender.c
index 70ab52828f2..b3a4de02451 100644
--- a/source/blender/blenkernel/intern/blender.c
+++ b/source/blender/blenkernel/intern/blender.c
@@ -182,7 +182,7 @@ static void userdef_free_keymaps(UserDef *userdef)
 {
   for (wmKeyMap *km = userdef->user_keymaps.first, *km_next; km; km = km_next) {
     km_next = km->next;
-    for (wmKeyMapDiffItem *kmdi = km->diff_items.first; kmdi; kmdi = kmdi->next) {
+    LISTBASE_FOREACH (wmKeyMapDiffItem *, kmdi, &km->diff_items) {
       if (kmdi->add_item) {
         keymap_item_free(kmdi->add_item);
         MEM_freeN(kmdi->add_item);
@@ -193,7 +193,7 @@ static void userdef_free_keymaps(UserDef *userdef)
       }
     }
 
-    for (wmKeyMapItem *kmi = km->items.first; kmi; kmi = kmi->next) {
+    LISTBASE_FOREACH (wmKeyMapItem *, kmi, &km->items) {
       keymap_item_free(kmi);
     }
 
@@ -250,7 +250,7 @@ void BKE_blender_userdef_data_free(UserDef *userdef, bool clear_fonts)
   userdef_free_addons(userdef);
 
   if (clear_fonts) {
-    for (uiFont *font = userdef->uifonts.first; font; font = font->next) {
+    LISTBASE_FOREACH (uiFont *, font, &userdef->uifonts) {
       BLF_unload_id(font->blf_id);
     }
     BLF_default_set(-1);
diff --git a/source/blender/blenkernel/intern/blender_user_menu.c b/source/blender/blenkernel/intern/blender_user_menu.c
index ad34ef03e04..edd89357fd5 100644
--- a/source/blender/blenkernel/intern/blender_user_menu.c
+++ b/source/blender/blenkernel/intern/blender_user_menu.c
@@ -38,7 +38,7 @@
 
 bUserMenu *BKE_blender_user_menu_find(ListBase *lb, char space_type, const char *context)
 {
-  for (bUserMenu *um = lb->first; um; um = um->next) {
+  LISTBASE_FOREACH (bUserMenu *, um, lb) {
     if ((space_type == um->space_type) && (STREQ(context, um->context))) {
       return um;
     }
diff --git a/source/blender/blenkernel/intern/blendfile.c b/source/blender/blenkernel/intern/blendfile.c
index 6bf47a8c280..d862132480a 100644
--- a/source/blender/blenkernel/intern/blendfile.c
+++ b/source/blender/blenkernel/intern/blendfile.c
@@ -345,7 +345,7 @@ static void setup_app_data(bContext *C,
     wmWindowManager *wm = bmain->wm.first;
 
     if (wm) {
-      for (wmWindow *win = wm->windows.first; win; win = win->next) {
+      LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
         if (win->scene && win->scene != curscene) {
           BKE_scene_set_background(bmain, win->scene);
         }
diff --git a/source/blender/blenkernel/intern/camera.c b/source/blender/blenkernel/intern/camera.c
index 323bb597127..71a2b6f703a 100644
--- a/source/blender/blenkernel/intern/camera.c
+++ b/source/blender/blenkernel/intern/camera.c
@@ -912,7 +912,7 @@ static Object *camera_multiview_advanced(const Scene *scene, Object *camera, con
   name[0] = '\0';
 
   /* we need to take the better match, thus the len_suffix_max test */
-  for (const SceneRenderView *srv = scene->r.views.first; srv; srv = srv->next) {
+  LISTBASE_FOREACH (const SceneRenderView *, srv, &scene->r.views) {
     const int len_suffix = strlen(srv->suffix);
 
     if ((len_suffix < len_suffix_max) || (len_name < len_suffix)) {
diff --git a/source/blender/blenkernel/intern/collection.c b/source/blender/blenkernel/intern/collection.c
index d39df4cc6a3..83a6949430e 100644
--- a/source/blender/blenkernel/intern/collection.c
+++ b/source/blender/blenkernel/intern/collection.c
@@ -106,10 +106,10 @@ static void collection_copy_data(Main *bmain, ID *id_dst, const ID *id_src, cons
   BLI_listbase_clear(&collection_dst->children);
   BLI_listbase_clear(&collection_dst->parents);
 
-  for (CollectionChild *child = collection_src->children.first; child; child = child->next) {
+  LISTBASE_FOREACH (CollectionChild *, child, &collection_src->children) {
     collection_child_add(collection_dst, child->collection, flag, false);
   }
-  for (CollectionObject *cob = collection_src->gobject.first; cob; cob = cob->next) {
+  LISTBASE_FOREACH (CollectionObject *, cob, &collection_src->gobject) {
     collection_object_add(bmain, collection_dst, cob->ob, flag, false);
   }
 }
@@ -223,9 +223,8 @@ bool BKE_collection_delete(Main *bmain, Collection *collection, bool hierarchy)
   }
   else {
     /* Link child collections into parent collection. */
-    for (CollectionChild *child = collection->children.first; child; child = child->next) {
-      for (CollectionParent *cparent = collection->parents.first; cparent;
-           cparent = cparent->next) {
+    LISTBASE_FOREACH (CollectionChild *, child, &collection->children) {
+      LISTBASE_FOREACH (CollectionParent *, cparent, &collection->parents) {
         Collection *parent = cparent->collection;
         collection_child_add(parent, child->collection, 0, true);
       }
@@ -234,8 +233,7 @@ bool BKE_collection_delete(Main *bmain, Collection *collection, bool hierarchy)
     CollectionObject *cob = collection->gobject.first;
     while (cob != NULL) {
       /* Link child object into parent collections. */
-      for (CollectionParent *cparent = collection->parents.first; cparent;
-           cparent = cparent->next) {
+      LISTBASE_FOREACH (CollectionParent *, cparent, &collection->parents) {
         Collection *parent = cparent->collection;
         collection_object_add(bmain, parent, cob->ob, 0, true);
       }
@@ -305,7 +303,7 @@ static Collection *collection_duplicate_recursive(Main *bmain,
   if (do_objects) {
     /* We can loop on collection_old's objects, that list is currently identical the collection_new
      * objects, and won't be changed here. */
-    for (CollectionObject *cob = collection_old->gobject.first; cob; cob = cob->next) {
+    LISTBASE_FOREACH (CollectionObject *, cob, &collection_old->gobject) {
       Object *ob_old = cob->ob;
       Object *ob_new = (Object *)ob_old->id.newid;
 
@@ -321,7 +319,7 @@ static Collection *collection_duplicate_recursive(Main *bmain,
 
   /* We can loop on collection_old's children,
    * that list is currently identical the collection_new' children, and won't be changed here. */
-  for (CollectionChild *child = collection_old->children.first; child; child = child->next) {
+  LISTBASE_FOREACH (CollectionChild *, child, &collection_old->children) {
     Collection *child_collection_old = child->collection;
 
     collection_duplicate_recursive(
@@ -440,7 +438,7 @@ static void collection_object_cache_fill(ListBase *lb, Collection *collection, i
 {
   int child_restrict = collection->flag | parent_restrict;
 
-  for (CollectionObject *cob = collection->gobject.first; cob; cob = cob->next) {
+  LISTBASE_FOREACH (CollectionObject *, cob, &collection->gobject) {
     Base *base = BLI_findptr(lb, cob->ob, offsetof(Base, object));
 
     if (base == NULL) {
@@ -460,7 +458,7 @@ static void collection_object_cache_fill(ListBase *lb, Collection *collection, i
     }
   }
 
-  for (CollectionChild *child = collection->children.first; child; child = child->next) {
+  LISTBASE_FOREACH (CollectionChild *, child, &collection->children) {
     collection_object_cache_fill(lb, child->collection, child_restrict);
   }
 }
@@ -487,7 +485,7 @@ static void collection_object_cache_free(Collection *collection)
   collection->flag &= ~COLLECTION_HAS_OBJECT_CACHE;
   BLI_freelistN(&collection->object_cache);
 
-  for (CollectionParent *parent = collection->parents.first; parent; parent = parent->next) {
+  LISTBASE_FOREACH (CollectionParent *, parent, &collection->parents) {
     collection_object_cache_free(parent->collection);
   }
 }
@@ -645,8 +643,7 @@ static void collection_tag_update_parent_recursive(Main *bmain,
 
   DEG_id_tag_update_ex(bmain, &collection->id, flag);
 
-  for (CollectionParent *collection_parent = collection->parents.first; collection_parent;
-       collection_parent = collection_parent->next) {
+  LISTBASE_FOREACH (CollectionParent *, collection_parent, &collection->parents) {
     if (collection_parent->collection->flag & COLLECTION_IS_MASTER) {
       /* We don't care about scene/master collection here. */
       continue;
@@ -952,7 +949,7 @@ bool BKE_collection_is_in_scene(Collection *collection)
     return true;
   }
 
-  for (CollectionParent *cparent = collection->parents.first; cparent; cparent = cparent->next) {
+  LISTBASE_FOREACH (CollectionParent *, cparent, &collection->parents) {
     if (BKE_collection_is_in_scene(cparent->collection)) {
       return true;
     }
@@ -977,7 +974,7 @@ bool BKE_collection_find_cycle(Collection *new_ancestor, Collection *collection)
     return true;
   }
 
-  for (CollectionParent *parent = new_ancestor->parents.first; parent; parent = parent->next) {
+  LISTBASE_FOREACH (CollectionParent *, parent, &new_ancestor->parents) {
     if (BKE_collection_find_cycle(parent->collection, collection)) {
       return true;
     }
@@ -993,7 +990,7 @@ static CollectionChild *collection_find_child(Collection *parent, Collection *co
 
 static bool collection_find_child_recursive(Collection *parent, Collection *collection)
 {
-  for (CollectionChild *child = parent->children.first; child; child = child->next) {
+  LISTBASE_FOREACH (CollectionChild *, child, &parent->children) {
     if (child->collection == collection) {
       return true;
     }
@@ -1168,7 +1165,7 @@ static Collection *collection_from_index_recursive(Collection *collection,
 
   (*index_current)++;
 
-  for (CollectionChild *child = collection->children.first; child; child = child->next) {
+  LISTBASE_FOREACH (CollectionChild *, child, &collection->children) {
     Collection *nested = collection_from_index_recursive(child->collection, index, index_current);
     if (nested != NULL) {
       return nested;
@@ -1197,7 +1194,7 @@ static bool collection_objects_select(ViewLayer *view_layer, Collection *collect
     return false;
   }
 
-  for (CollectionObject *cob = collection->gobject.first; cob; cob = cob->next) {
+  LISTBASE_FOREACH (CollectionObject *, cob, &collection->gobject) {
     Base *base = BKE_view_layer_base_find(view_layer, cob->ob);
 
     if (base) {
@@ -1216,7 +1213,7 @@ static bool collection_objects_select(ViewLayer *view_layer, Collection *collect
     }
   }
 
-  for (CollectionChild *child = collection->children.first; child; child = child->next) {
+  LISTBASE_FOREACH (CollectionChild *, child, &collection->children) {
     if (collection_objects_select(view_layer, collection, deselect)) {
       changed = true;
     }
@@ -1289,8 +1286,7 @@ bool BKE_collection_move(Main *bmain,
   GHash *view_layer_hash = BLI_ghash_new(BLI_ghashutil_ptrhash, BLI_ghashutil_ptrcmp, __func__);
 
   for (Scene *scene = bmain->scenes.first; scene; scene = scene->id.next) {
-    for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-         view_layer = view_layer->next) {
+    LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
 
       LayerCollection *layer_collection = BKE_layer_collection_first_from_scene_collection(
           view_layer, collection);
@@ -1352,7 +1348,7 @@ static void scene_collection_callback(Collection *collection,
 {
   callback(collection, data);
 
-  for (CollectionChild *child = collection->children.first; child; child = child->next) {
+  LISTBASE_FOREACH (CollectionChild *, child, &collection->children) {
     scene_collection_callback(child->collection, callback, data);
   }
 }
diff --git a/source/blender/blenkernel/intern/collision.c b/source/blender/blenkernel/intern/collision.c
index 9230746cd1d..7cc40007e26 100644
--- a/source/blender/blenkernel/intern/collision.c
+++ b/source/blender/blenkernel/intern/collision.c
@@ -1380,7 +1380,7 @@ Object **BKE_collision_objects_create(Depsgraph *depsgraph,
   int num = 0;
   Object **objects = MEM_callocN(sizeof(Object *) * maxnum, __func__);
 
-  for (CollisionRelation *relation = relations->first; relation; relation = relation->next) {
+  LISTBASE_FOREACH (CollisionRelation *, relation, relations) {
     /* Get evaluated object. */
     Object *ob = (Object *)DEG_get_evaluated_id(depsgraph, &relation->ob->id);
 
@@ -1418,7 +1418,7 @@ ListBase *BKE_collider_cache_create(Depsgraph *depsgraph, Object *self, Collecti
     return NULL;
   }
 
-  for (CollisionRelation *relation = relations->first; relation; relation = relation->next) {
+  LISTBASE_FOREACH (CollisionRelation *, relation, relations) {
     /* Get evaluated object. */
     Object *ob = (Object *)DEG_get_evaluated_id(depsgraph, &relation->ob->id);
 
diff --git a/source/blender/blenkernel/intern/constraint.c b/source/blender/blenkernel/intern/constraint.c
index 28ce62c3de2..c91bf4e7f5b 100644
--- a/source/blender/blenkernel/intern/constraint.c
+++ b/source/blender/blenkernel/intern/constraint.c
@@ -2513,7 +2513,7 @@ static void armdef_evaluate(bConstraint *con, bConstraintOb *cob, ListBase *targ
 
   /* Process all targets. This can't use ct->matrix, as armdef_get_tarmat is not
    * called in solve for efficiency because the constraint needs bone data anyway. */
-  for (bConstraintTarget *ct = targets->first; ct; ct = ct->next) {
+  LISTBASE_FOREACH (bConstraintTarget *, ct, targets) {
     if (ct->weight <= 0.0f) {
       continue;
     }
@@ -5497,7 +5497,7 @@ void BKE_constraints_active_set(ListBase *list, bConstraint *con)
 
 static bConstraint *constraint_list_find_from_target(ListBase *constraints, bConstraintTarget *tgt)
 {
-  for (bConstraint *con = constraints->first; con; con = con->next) {
+  LISTBASE_FOREACH (bConstraint *, con, constraints) {
     ListBase *targets = NULL;
 
     if (con->type == CONSTRAINT_TYPE_PYTHON) {
@@ -5531,7 +5531,7 @@ bConstraint *BKE_constraint_find_from_target(Object *ob,
   }
 
   if (ob->pose != NULL) {
-    for (bPoseChannel *pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
+    LISTBASE_FOREACH (bPoseChannel *, pchan, &ob->pose->chanbase) {
       result = constraint_list_find_from_target(&pchan->constraints, tgt);
 
       if (result != NULL) {
diff --git a/source/blender/blenkernel/intern/curve.c b/source/blender/blenkernel/intern/curve.c
index 51912e3375a..5b463059f18 100644
--- a/source/blender/blenkernel/intern/curve.c
+++ b/source/blender/blenkernel/intern/curve.c
@@ -4612,7 +4612,7 @@ void BKE_nurb_direction_switch(Nurb *nu)
 void BKE_curve_nurbs_vert_coords_get(ListBase *lb, float (*vert_coords)[3], int vert_len)
 {
   float *co = vert_coords[0];
-  for (Nurb *nu = lb->first; nu; nu = nu->next) {
+  LISTBASE_FOREACH (Nurb *, nu, lb) {
     if (nu->type == CU_BEZIER) {
       BezTriple *bezt = nu->bezt;
       for (int i = 0; i < nu->pntsu; i++, bezt++) {
@@ -4692,7 +4692,7 @@ void BKE_curve_nurbs_vert_coords_apply(ListBase *lb,
 {
   const float *co = vert_coords[0];
 
-  for (Nurb *nu = lb->first; nu; nu = nu->next) {
+  LISTBASE_FOREACH (Nurb *, nu, lb) {
     if (nu->type == CU_BEZIER) {
       BezTriple *bezt = nu->bezt;
 
@@ -4730,7 +4730,7 @@ float (*BKE_curve_nurbs_key_vert_coords_alloc(ListBase *lb, float *key, int *r_v
   float(*cos)[3] = MEM_malloc_arrayN(vert_len, sizeof(*cos), __func__);
 
   float *co = cos[0];
-  for (Nurb *nu = lb->first; nu; nu = nu->next) {
+  LISTBASE_FOREACH (Nurb *, nu, lb) {
     if (nu->type == CU_BEZIER) {
       BezTriple *bezt = nu->bezt;
 
@@ -5168,7 +5168,7 @@ bool BKE_curve_minmax(Curve *cu, bool use_radius, float min[3], float max[3])
     use_radius = false;
   }
   /* Do bounding box based on splines. */
-  for (Nurb *nu = nurb_lb->first; nu; nu = nu->next) {
+  LISTBASE_FOREACH (Nurb *, nu, nurb_lb) {
     BKE_nurb_minmax(nu, use_radius, min, max);
   }
   const bool result = (BLI_listbase_is_empty(nurb_lb) == false);
diff --git a/source/blender/blenkernel/intern/effect.c b/source/blender/blenkernel/intern/effect.c
index 984a7a12b94..e1e818a5a34 100644
--- a/source/blender/blenkernel/intern/effect.c
+++ b/source/blender/blenkernel/intern/effect.c
@@ -247,7 +247,7 @@ ListBase *BKE_effector_relations_create(Depsgraph *depsgraph,
       add_effector_relation(relations, ob, NULL, ob->pd);
     }
 
-    for (ParticleSystem *psys = ob->particlesystem.first; psys; psys = psys->next) {
+    LISTBASE_FOREACH (ParticleSystem *, psys, &ob->particlesystem) {
       ParticleSettings *part = psys->part;
 
       if (psys_check_enabled(ob, psys, for_render)) {
@@ -286,7 +286,7 @@ ListBase *BKE_effectors_create(Depsgraph *depsgraph,
     return NULL;
   }
 
-  for (EffectorRelation *relation = relations->first; relation; relation = relation->next) {
+  LISTBASE_FOREACH (EffectorRelation *, relation, relations) {
     /* Get evaluated object. */
     Object *ob = (Object *)DEG_get_evaluated_id(depsgraph, &relation->ob->id);
 
@@ -329,7 +329,7 @@ ListBase *BKE_effectors_create(Depsgraph *depsgraph,
 void BKE_effectors_free(ListBase *lb)
 {
   if (lb) {
-    for (EffectorCache *eff = lb->first; eff; eff = eff->next) {
+    LISTBASE_FOREACH (EffectorCache *, eff, lb) {
       if (eff->guide_data) {
         MEM_freeN(eff->guide_data);
       }
diff --git a/source/blender/blenkernel/intern/fcurve.c b/source/blender/blenkernel/intern/fcurve.c
index fbca09001d6..439992a4113 100644
--- a/source/blender/blenkernel/intern/fcurve.c
+++ b/source/blender/blenkernel/intern/fcurve.c
@@ -1944,7 +1944,7 @@ void driver_variables_copy(ListBase *dst_vars, const ListBase *src_vars)
   BLI_assert(BLI_listbase_is_empty(dst_vars));
   BLI_duplicatelist(dst_vars, src_vars);
 
-  for (DriverVar *dvar = dst_vars->first; dvar; dvar = dvar->next) {
+  LISTBASE_FOREACH (DriverVar *, dvar, dst_vars) {
     /* need to go over all targets so that we don't leave any dangling paths */
     DRIVER_TARGETS_LOOPER_BEGIN (dvar) {
       /* make a copy of target's rna path if available */
@@ -2167,7 +2167,7 @@ static ExprPyLike_Parsed *driver_compile_simple_expr_impl(ChannelDriver *driver)
 
   names[VAR_INDEX_FRAME] = "frame";
 
-  for (DriverVar *dvar = driver->variables.first; dvar; dvar = dvar->next) {
+  LISTBASE_FOREACH (DriverVar *, dvar, &driver->variables) {
     names[i++] = dvar->name;
   }
 
@@ -2192,7 +2192,7 @@ static bool driver_evaluate_simple_expr(ChannelDriver *driver,
 
   vars[VAR_INDEX_FRAME] = time;
 
-  for (DriverVar *dvar = driver->variables.first; dvar; dvar = dvar->next) {
+  LISTBASE_FOREACH (DriverVar *, dvar, &driver->variables) {
     vars[i++] = driver_get_variable_value(driver, dvar);
   }
 
diff --git a/source/blender/blenkernel/intern/fmodifier.c b/source/blender/blenkernel/intern/fmodifier.c
index 1d5a908e226..c85283e3653 100644
--- a/source/blender/blenkernel/intern/fmodifier.c
+++ b/source/blender/blenkernel/intern/fmodifier.c
@@ -1358,7 +1358,7 @@ uint evaluate_fmodifiers_storage_size_per_modifier(ListBase *modifiers)
 
   uint max_size = 0;
 
-  for (FModifier *fcm = modifiers->first; fcm; fcm = fcm->next) {
+  LISTBASE_FOREACH (FModifier *, fcm, modifiers) {
     const FModifierTypeInfo *fmi = fmodifier_get_typeinfo(fcm);
 
     if (fmi == NULL) {
diff --git a/source/blender/blenkernel/intern/gpencil.c b/source/blender/blenkernel/intern/gpencil.c
index b2fc91fd0a6..a0fa07f4a41 100644
--- a/source/blender/blenkernel/intern/gpencil.c
+++ b/source/blender/blenkernel/intern/gpencil.c
@@ -644,7 +644,7 @@ bGPDframe *BKE_gpencil_frame_duplicate(const bGPDframe *gpf_src)
 
   /* copy strokes */
   BLI_listbase_clear(&gpf_dst->strokes);
-  for (bGPDstroke *gps_src = gpf_src->strokes.first; gps_src; gps_src = gps_src->next) {
+  LISTBASE_FOREACH (bGPDstroke *, gps_src, &gpf_src->strokes) {
     /* make copy of source stroke */
     gps_dst = BKE_gpencil_stroke_duplicate(gps_src, true);
     BLI_addtail(&gpf_dst->strokes, gps_dst);
@@ -665,7 +665,7 @@ void BKE_gpencil_frame_copy_strokes(bGPDframe *gpf_src, struct bGPDframe *gpf_ds
 
   /* copy strokes */
   BLI_listbase_clear(&gpf_dst->strokes);
-  for (bGPDstroke *gps_src = gpf_src->strokes.first; gps_src; gps_src = gps_src->next) {
+  LISTBASE_FOREACH (bGPDstroke *, gps_src, &gpf_src->strokes) {
     /* make copy of source stroke */
     gps_dst = BKE_gpencil_stroke_duplicate(gps_src, true);
     BLI_addtail(&gpf_dst->strokes, gps_dst);
diff --git a/source/blender/blenkernel/intern/gpencil_geom.c b/source/blender/blenkernel/intern/gpencil_geom.c
index 6bdcc9cfbcb..874672f4a73 100644
--- a/source/blender/blenkernel/intern/gpencil_geom.c
+++ b/source/blender/blenkernel/intern/gpencil_geom.c
@@ -1685,7 +1685,7 @@ static Collection *gpencil_get_parent_collection(Scene *scene, Object *ob)
 {
   Collection *mycol = NULL;
   FOREACH_SCENE_COLLECTION_BEGIN (scene, collection) {
-    for (CollectionObject *cob = collection->gobject.first; cob; cob = cob->next) {
+    LISTBASE_FOREACH (CollectionObject *, cob, &collection->gobject) {
       if ((mycol == NULL) && (cob->ob == ob)) {
         mycol = collection;
       }
@@ -1976,7 +1976,7 @@ void BKE_gpencil_convert_curve(Main *bmain,
   bGPDframe *gpf = BKE_gpencil_layer_frame_get(gpl, CFRA, GP_GETFRAME_ADD_COPY);
 
   /* Read all splines of the curve and create a stroke for each. */
-  for (Nurb *nu = cu->nurb.first; nu; nu = nu->next) {
+  LISTBASE_FOREACH (Nurb *, nu, &cu->nurb) {
     gpencil_convert_spline(bmain, ob_gp, ob_cu, gpencil_lines, only_stroke, gpf, nu);
   }
 
diff --git a/source/blender/blenkernel/intern/idprop.c b/source/blender/blenkernel/intern/idprop.c
index 554b8d93db3..5530a126ffc 100644
--- a/source/blender/blenkernel/intern/idprop.c
+++ b/source/blender/blenkernel/intern/idprop.c
@@ -800,7 +800,7 @@ void IDP_RelinkProperty(struct IDProperty *prop)
 
   switch (prop->type) {
     case IDP_GROUP: {
-      for (IDProperty *loop = prop->data.group.first; loop; loop = loop->next) {
+      LISTBASE_FOREACH (IDProperty *, loop, &prop->data.group) {
         IDP_RelinkProperty(loop);
       }
       break;
diff --git a/source/blender/blenkernel/intern/idprop_utils.c b/source/blender/blenkernel/intern/idprop_utils.c
index 629fecf42f4..f8a1113f69b 100644
--- a/source/blender/blenkernel/intern/idprop_utils.c
+++ b/source/blender/blenkernel/intern/idprop_utils.c
@@ -167,7 +167,7 @@ static void idp_repr_fn_recursive(struct ReprState *state, const IDProperty *pro
     }
     case IDP_GROUP: {
       STR_APPEND_STR("{");
-      for (const IDProperty *subprop = prop->data.group.first; subprop; subprop = subprop->next) {
+      LISTBASE_FOREACH (const IDProperty *, subprop, &prop->data.group) {
         if (subprop != prop->data.group.first) {
           STR_APPEND_STR(", ");
         }
diff --git a/source/blender/blenkernel/intern/image.c b/source/blender/blenkernel/intern/image.c
index 0fb70869ac0..f58e7c06d7f 100644
--- a/source/blender/blenkernel/intern/image.c
+++ b/source/blender/blenkernel/intern/image.c
@@ -3101,7 +3101,7 @@ static void image_walk_ntree_all_users(
 {
   switch (ntree->type) {
     case NTREE_SHADER:
-      for (bNode *node = ntree->nodes.first; node; node = node->next) {
+      LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
         if (node->id) {
           if (node->type == SH_NODE_TEX_IMAGE) {
             NodeTexImage *tex = node->storage;
@@ -3117,7 +3117,7 @@ static void image_walk_ntree_all_users(
       }
       break;
     case NTREE_TEXTURE:
-      for (bNode *node = ntree->nodes.first; node; node = node->next) {
+      LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
         if (node->id && node->type == TEX_NODE_IMAGE) {
           Image *ima = (Image *)node->id;
           ImageUser *iuser = node->storage;
@@ -3126,7 +3126,7 @@ static void image_walk_ntree_all_users(
       }
       break;
     case NTREE_COMPOSIT:
-      for (bNode *node = ntree->nodes.first; node; node = node->next) {
+      LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
         if (node->id && node->type == CMP_NODE_IMAGE) {
           Image *ima = (Image *)node->id;
           ImageUser *iuser = node->storage;
@@ -3189,17 +3189,17 @@ static void image_walk_id_all_users(
     }
     case ID_CA: {
       Camera *cam = (Camera *)id;
-      for (CameraBGImage *bgpic = cam->bg_images.first; bgpic; bgpic = bgpic->next) {
+      LISTBASE_FOREACH (CameraBGImage *, bgpic, &cam->bg_images) {
         callback(bgpic->ima, NULL, &bgpic->iuser, customdata);
       }
       break;
     }
     case ID_WM: {
       wmWindowManager *wm = (wmWindowManager *)id;
-      for (wmWindow *win = wm->windows.first; win; win = win->next) {
+      LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
         const bScreen *screen = BKE_workspace_active_screen_get(win->workspace_hook);
 
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
           if (area->spacetype == SPACE_IMAGE) {
             SpaceImage *sima = area->spacedata.first;
             callback(sima->image, NULL, &sima->iuser, customdata);
@@ -3761,7 +3761,7 @@ static void image_init_multilayer_multiview(Image *ima, RenderResult *rr)
   BKE_image_free_views(ima);
 
   if (rr) {
-    for (RenderView *rv = rr->views.first; rv; rv = rv->next) {
+    LISTBASE_FOREACH (RenderView *, rv, &rr->views) {
       ImageView *iv = MEM_callocN(sizeof(ImageView), "Viewer Image View");
       STRNCPY(iv->name, rv->name);
       BLI_addtail(&ima->views, iv);
diff --git a/source/blender/blenkernel/intern/keyconfig.c b/source/blender/blenkernel/intern/keyconfig.c
index 84f48441cf9..ada5fc5b6aa 100644
--- a/source/blender/blenkernel/intern/keyconfig.c
+++ b/source/blender/blenkernel/intern/keyconfig.c
@@ -209,7 +209,7 @@ void BKE_keyconfig_pref_filter_items(struct UserDef *userdef,
                                      bool (*filter_fn)(wmKeyMapItem *kmi, void *user_data),
                                      void *user_data)
 {
-  for (wmKeyMap *keymap = userdef->user_keymaps.first; keymap; keymap = keymap->next) {
+  LISTBASE_FOREACH (wmKeyMap *, keymap, &userdef->user_keymaps) {
     BKE_keyconfig_keymap_filter_item(keymap, params, filter_fn, user_data);
   }
 }
diff --git a/source/blender/blenkernel/intern/layer.c b/source/blender/blenkernel/intern/layer.c
index ffa1eecc87b..d8f0bda8c22 100644
--- a/source/blender/blenkernel/intern/layer.c
+++ b/source/blender/blenkernel/intern/layer.c
@@ -83,7 +83,7 @@ static void layer_collection_free(ViewLayer *view_layer, LayerCollection *lc)
     view_layer->active_collection = NULL;
   }
 
-  for (LayerCollection *nlc = lc->layer_collections.first; nlc; nlc = nlc->next) {
+  LISTBASE_FOREACH (LayerCollection *, nlc, &lc->layer_collections) {
     layer_collection_free(view_layer, nlc);
   }
 
@@ -109,8 +109,7 @@ static Base *object_base_new(Object *ob)
  * none linked to the workspace yet. */
 ViewLayer *BKE_view_layer_default_view(const Scene *scene)
 {
-  for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-       view_layer = view_layer->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
     if (!(view_layer->flag & VIEW_LAYER_RENDER)) {
       return view_layer;
     }
@@ -123,8 +122,7 @@ ViewLayer *BKE_view_layer_default_view(const Scene *scene)
 /* Returns the default view layer to render if we need to render just one. */
 ViewLayer *BKE_view_layer_default_render(const Scene *scene)
 {
-  for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-       view_layer = view_layer->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
     if (view_layer->flag & VIEW_LAYER_RENDER) {
       return view_layer;
     }
@@ -137,8 +135,7 @@ ViewLayer *BKE_view_layer_default_render(const Scene *scene)
 /* Returns view layer with matching name, or NULL if not found. */
 ViewLayer *BKE_view_layer_find(const Scene *scene, const char *layer_name)
 {
-  for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-       view_layer = view_layer->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
     if (STREQ(view_layer->name, layer_name)) {
       return view_layer;
     }
@@ -262,12 +259,12 @@ void BKE_view_layer_free_ex(ViewLayer *view_layer, const bool do_id_user)
     BLI_ghash_free(view_layer->object_bases_hash, NULL, NULL);
   }
 
-  for (LayerCollection *lc = view_layer->layer_collections.first; lc; lc = lc->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc, &view_layer->layer_collections) {
     layer_collection_free(view_layer, lc);
   }
   BLI_freelistN(&view_layer->layer_collections);
 
-  for (ViewLayerEngineData *sled = view_layer->drawdata.first; sled; sled = sled->next) {
+  LISTBASE_FOREACH (ViewLayerEngineData *, sled, &view_layer->drawdata) {
     if (sled->storage) {
       if (sled->free) {
         sled->free(sled->storage);
@@ -295,7 +292,7 @@ void BKE_view_layer_free_ex(ViewLayer *view_layer, const bool do_id_user)
  */
 void BKE_view_layer_selected_objects_tag(ViewLayer *view_layer, const int tag)
 {
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     if ((base->flag & BASE_SELECTED) != 0) {
       base->object->flag |= tag;
     }
@@ -307,7 +304,7 @@ void BKE_view_layer_selected_objects_tag(ViewLayer *view_layer, const int tag)
 
 static bool find_scene_collection_in_scene_collections(ListBase *lb, const LayerCollection *lc)
 {
-  for (LayerCollection *lcn = lb->first; lcn; lcn = lcn->next) {
+  LISTBASE_FOREACH (LayerCollection *, lcn, lb) {
     if (lcn == lc) {
       return true;
     }
@@ -327,7 +324,7 @@ static bool find_scene_collection_in_scene_collections(ListBase *lb, const Layer
  */
 Object *BKE_view_layer_camera_find(ViewLayer *view_layer)
 {
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     if (base->object->type == OB_CAMERA) {
       return base->object;
     }
@@ -341,8 +338,7 @@ Object *BKE_view_layer_camera_find(ViewLayer *view_layer)
  */
 ViewLayer *BKE_view_layer_find_from_collection(const Scene *scene, LayerCollection *lc)
 {
-  for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-       view_layer = view_layer->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
     if (find_scene_collection_in_scene_collections(&view_layer->layer_collections, lc)) {
       return view_layer;
     }
@@ -364,7 +360,7 @@ static void view_layer_bases_hash_create(ViewLayer *view_layer)
       view_layer->object_bases_hash = BLI_ghash_new(
           BLI_ghashutil_ptrhash, BLI_ghashutil_ptrcmp, __func__);
 
-      for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+      LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
         if (base->object) {
           BLI_ghash_insert(view_layer->object_bases_hash, base->object, base);
         }
@@ -455,7 +451,7 @@ void BKE_view_layer_copy_data(Scene *scene_dst,
   /* Copy layer collections and object bases. */
   /* Inline 'BLI_duplicatelist' and update the active base. */
   BLI_listbase_clear(&view_layer_dst->object_bases);
-  for (Base *base_src = view_layer_src->object_bases.first; base_src; base_src = base_src->next) {
+  LISTBASE_FOREACH (Base *, base_src, &view_layer_src->object_bases) {
     Base *base_dst = MEM_dupallocN(base_src);
     BLI_addtail(&view_layer_dst->object_bases, base_dst);
     if (view_layer_src->basact == base_src) {
@@ -506,7 +502,7 @@ void BKE_view_layer_rename(Main *bmain, Scene *scene, ViewLayer *view_layer, con
   /* WM can be missing on startup. */
   wmWindowManager *wm = bmain->wm.first;
   if (wm) {
-    for (wmWindow *win = wm->windows.first; win; win = win->next) {
+    LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
       if (win->scene == scene && STREQ(win->view_layer_name, oldname)) {
         STRNCPY(win->view_layer_name, view_layer->name);
       }
@@ -524,7 +520,7 @@ void BKE_view_layer_rename(Main *bmain, Scene *scene, ViewLayer *view_layer, con
  */
 static LayerCollection *collection_from_index(ListBase *lb, const int number, int *i)
 {
-  for (LayerCollection *lc = lb->first; lc; lc = lc->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc, lb) {
     if (*i == number) {
       return lc;
     }
@@ -532,7 +528,7 @@ static LayerCollection *collection_from_index(ListBase *lb, const int number, in
     (*i)++;
   }
 
-  for (LayerCollection *lc = lb->first; lc; lc = lc->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc, lb) {
     LayerCollection *lc_nested = collection_from_index(&lc->layer_collections, number, i);
     if (lc_nested) {
       return lc_nested;
@@ -635,7 +631,7 @@ LayerCollection *BKE_layer_collection_activate_parent(ViewLayer *view_layer, Lay
 static int collection_count(ListBase *lb)
 {
   int i = 0;
-  for (LayerCollection *lc = lb->first; lc; lc = lc->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc, lb) {
     i += collection_count(&lc->layer_collections) + 1;
   }
   return i;
@@ -655,7 +651,7 @@ int BKE_layer_collection_count(ViewLayer *view_layer)
  */
 static int index_from_collection(ListBase *lb, const LayerCollection *lc, int *i)
 {
-  for (LayerCollection *lcol = lb->first; lcol; lcol = lcol->next) {
+  LISTBASE_FOREACH (LayerCollection *, lcol, lb) {
     if (lcol == lc) {
       return *i;
     }
@@ -663,7 +659,7 @@ static int index_from_collection(ListBase *lb, const LayerCollection *lc, int *i
     (*i)++;
   }
 
-  for (LayerCollection *lcol = lb->first; lcol; lcol = lcol->next) {
+  LISTBASE_FOREACH (LayerCollection *, lcol, lb) {
     int i_nested = index_from_collection(&lcol->layer_collections, lc, i);
     if (i_nested != -1) {
       return i_nested;
@@ -733,7 +729,7 @@ static short layer_collection_sync(ViewLayer *view_layer,
   ListBase new_lb_layer = {NULL, NULL};
   short runtime_flag = 0;
 
-  for (const CollectionChild *child = lb_scene->first; child; child = child->next) {
+  LISTBASE_FOREACH (const CollectionChild *, child, lb_scene) {
     Collection *collection = child->collection;
     LayerCollection *lc = BLI_findptr(lb_layer, collection, offsetof(LayerCollection, collection));
 
@@ -792,7 +788,7 @@ static short layer_collection_sync(ViewLayer *view_layer,
     }
 
     /* Sync objects, except if collection was excluded. */
-    for (CollectionObject *cob = collection->gobject.first; cob; cob = cob->next) {
+    LISTBASE_FOREACH (CollectionObject *, cob, &collection->gobject) {
       if (cob->ob == NULL) {
         continue;
       }
@@ -877,7 +873,7 @@ void BKE_layer_collection_sync(const Scene *scene, ViewLayer *view_layer)
   }
 
   /* Clear visible and selectable flags to be reset. */
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     base->flag &= ~g_base_collection_flags;
     base->flag_from_collection &= ~g_base_collection_flags;
   }
@@ -898,7 +894,7 @@ void BKE_layer_collection_sync(const Scene *scene, ViewLayer *view_layer)
                         ~(0));
 
   /* Any remaining object bases are to be removed. */
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     if (view_layer->basact == base) {
       view_layer->basact = NULL;
     }
@@ -911,7 +907,7 @@ void BKE_layer_collection_sync(const Scene *scene, ViewLayer *view_layer)
   BLI_freelistN(&view_layer->object_bases);
   view_layer->object_bases = new_object_bases;
 
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     BKE_base_eval_flags(base);
   }
 
@@ -927,8 +923,7 @@ void BKE_layer_collection_sync(const Scene *scene, ViewLayer *view_layer)
 
 void BKE_scene_collection_sync(const Scene *scene)
 {
-  for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-       view_layer = view_layer->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
     BKE_layer_collection_sync(scene, view_layer);
   }
 }
@@ -951,8 +946,7 @@ void BKE_main_collection_sync_remap(const Main *bmain)
   /* TODO: try to make this faster */
 
   for (const Scene *scene = bmain->scenes.first; scene; scene = scene->id.next) {
-    for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-         view_layer = view_layer->next) {
+    LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
       MEM_SAFE_FREE(view_layer->object_bases_array);
 
       if (view_layer->object_bases_hash) {
@@ -988,7 +982,7 @@ bool BKE_layer_collection_objects_select(ViewLayer *view_layer, LayerCollection
   bool changed = false;
 
   if (!(lc->flag & LAYER_COLLECTION_EXCLUDE)) {
-    for (CollectionObject *cob = lc->collection->gobject.first; cob; cob = cob->next) {
+    LISTBASE_FOREACH (CollectionObject *, cob, &lc->collection->gobject) {
       Base *base = BKE_view_layer_base_find(view_layer, cob->ob);
 
       if (base) {
@@ -1008,7 +1002,7 @@ bool BKE_layer_collection_objects_select(ViewLayer *view_layer, LayerCollection
     }
   }
 
-  for (LayerCollection *iter = lc->layer_collections.first; iter; iter = iter->next) {
+  LISTBASE_FOREACH (LayerCollection *, iter, &lc->layer_collections) {
     changed |= BKE_layer_collection_objects_select(view_layer, iter, deselect);
   }
 
@@ -1022,7 +1016,7 @@ bool BKE_layer_collection_has_selected_objects(ViewLayer *view_layer, LayerColle
   }
 
   if (!(lc->flag & LAYER_COLLECTION_EXCLUDE)) {
-    for (CollectionObject *cob = lc->collection->gobject.first; cob; cob = cob->next) {
+    LISTBASE_FOREACH (CollectionObject *, cob, &lc->collection->gobject) {
       Base *base = BKE_view_layer_base_find(view_layer, cob->ob);
 
       if (base && (base->flag & BASE_SELECTED) && (base->flag & BASE_VISIBLE_DEPSGRAPH)) {
@@ -1031,7 +1025,7 @@ bool BKE_layer_collection_has_selected_objects(ViewLayer *view_layer, LayerColle
     }
   }
 
-  for (LayerCollection *iter = lc->layer_collections.first; iter; iter = iter->next) {
+  LISTBASE_FOREACH (LayerCollection *, iter, &lc->layer_collections) {
     if (BKE_layer_collection_has_selected_objects(view_layer, iter)) {
       return true;
     }
@@ -1047,8 +1041,7 @@ bool BKE_layer_collection_has_layer_collection(LayerCollection *lc_parent,
     return true;
   }
 
-  for (LayerCollection *lc_iter = lc_parent->layer_collections.first; lc_iter;
-       lc_iter = lc_iter->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc_iter, &lc_parent->layer_collections) {
     if (BKE_layer_collection_has_layer_collection(lc_iter, lc_child)) {
       return true;
     }
@@ -1063,7 +1056,7 @@ void BKE_base_set_visible(Scene *scene, ViewLayer *view_layer, Base *base, bool
 {
   if (!extend) {
     /* Make only one base visible. */
-    for (Base *other = view_layer->object_bases.first; other; other = other->next) {
+    LISTBASE_FOREACH (Base *, other, &view_layer->object_bases) {
       other->flag |= BASE_HIDDEN;
     }
 
@@ -1134,7 +1127,7 @@ bool BKE_object_is_visible_in_viewport(const struct View3D *v3d, const struct Ob
 static void layer_collection_flag_set_recursive(LayerCollection *lc, const int flag)
 {
   lc->flag |= flag;
-  for (LayerCollection *lc_iter = lc->layer_collections.first; lc_iter; lc_iter = lc_iter->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc_iter, &lc->layer_collections) {
     layer_collection_flag_set_recursive(lc_iter, flag);
   }
 }
@@ -1142,7 +1135,7 @@ static void layer_collection_flag_set_recursive(LayerCollection *lc, const int f
 static void layer_collection_flag_unset_recursive(LayerCollection *lc, const int flag)
 {
   lc->flag &= ~flag;
-  for (LayerCollection *lc_iter = lc->layer_collections.first; lc_iter; lc_iter = lc_iter->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc_iter, &lc->layer_collections) {
     layer_collection_flag_unset_recursive(lc_iter, flag);
   }
 }
@@ -1165,8 +1158,7 @@ void BKE_layer_collection_isolate_global(Scene *scene,
 
   if (!extend) {
     /* Hide all collections . */
-    for (LayerCollection *lc_iter = lc_master->layer_collections.first; lc_iter;
-         lc_iter = lc_iter->next) {
+    LISTBASE_FOREACH (LayerCollection *, lc_iter, &lc_master->layer_collections) {
       layer_collection_flag_set_recursive(lc_iter, LAYER_COLLECTION_HIDE);
     }
   }
@@ -1177,8 +1169,7 @@ void BKE_layer_collection_isolate_global(Scene *scene,
   }
   else {
     LayerCollection *lc_parent = lc;
-    for (LayerCollection *lc_iter = lc_master->layer_collections.first; lc_iter;
-         lc_iter = lc_iter->next) {
+    LISTBASE_FOREACH (LayerCollection *, lc_iter, &lc_master->layer_collections) {
       if (BKE_layer_collection_has_layer_collection(lc_iter, lc)) {
         lc_parent = lc_iter;
         break;
@@ -1188,8 +1179,7 @@ void BKE_layer_collection_isolate_global(Scene *scene,
     while (lc_parent != lc) {
       lc_parent->flag &= ~LAYER_COLLECTION_HIDE;
 
-      for (LayerCollection *lc_iter = lc_parent->layer_collections.first; lc_iter;
-           lc_iter = lc_iter->next) {
+      LISTBASE_FOREACH (LayerCollection *, lc_iter, &lc_parent->layer_collections) {
         if (BKE_layer_collection_has_layer_collection(lc_iter, lc)) {
           lc_parent = lc_iter;
           break;
@@ -1210,8 +1200,7 @@ static void layer_collection_local_visibility_set_recursive(LayerCollection *lay
                                                             const int local_collections_uuid)
 {
   layer_collection->local_collections_bits |= local_collections_uuid;
-  for (LayerCollection *child = layer_collection->layer_collections.first; child;
-       child = child->next) {
+  LISTBASE_FOREACH (LayerCollection *, child, &layer_collection->layer_collections) {
     layer_collection_local_visibility_set_recursive(child, local_collections_uuid);
   }
 }
@@ -1220,8 +1209,7 @@ static void layer_collection_local_visibility_unset_recursive(LayerCollection *l
                                                               const int local_collections_uuid)
 {
   layer_collection->local_collections_bits &= ~local_collections_uuid;
-  for (LayerCollection *child = layer_collection->layer_collections.first; child;
-       child = child->next) {
+  LISTBASE_FOREACH (LayerCollection *, child, &layer_collection->layer_collections) {
     layer_collection_local_visibility_unset_recursive(child, local_collections_uuid);
   }
 }
@@ -1236,8 +1224,7 @@ static void layer_collection_local_sync(ViewLayer *view_layer,
   }
 
   if (visible) {
-    for (CollectionObject *cob = layer_collection->collection->gobject.first; cob;
-         cob = cob->next) {
+    LISTBASE_FOREACH (CollectionObject *, cob, &layer_collection->collection->gobject) {
       BLI_assert(cob->ob);
       Base *base = BKE_view_layer_base_find(view_layer, cob->ob);
       base->local_collections_bits |= local_collections_uuid;
@@ -1256,7 +1243,7 @@ void BKE_layer_collection_local_sync(ViewLayer *view_layer, View3D *v3d)
   const unsigned short local_collections_uuid = v3d->local_collections_uuid;
 
   /* Reset flags and set the bases visible by default. */
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     base->local_collections_bits &= ~local_collections_uuid;
   }
 
@@ -1280,8 +1267,7 @@ void BKE_layer_collection_isolate_local(ViewLayer *view_layer,
 
   if (!extend) {
     /* Hide all collections. */
-    for (LayerCollection *lc_iter = lc_master->layer_collections.first; lc_iter;
-         lc_iter = lc_iter->next) {
+    LISTBASE_FOREACH (LayerCollection *, lc_iter, &lc_master->layer_collections) {
       layer_collection_local_visibility_unset_recursive(lc_iter, v3d->local_collections_uuid);
     }
   }
@@ -1292,8 +1278,7 @@ void BKE_layer_collection_isolate_local(ViewLayer *view_layer,
   }
   else {
     LayerCollection *lc_parent = lc;
-    for (LayerCollection *lc_iter = lc_master->layer_collections.first; lc_iter;
-         lc_iter = lc_iter->next) {
+    LISTBASE_FOREACH (LayerCollection *, lc_iter, &lc_master->layer_collections) {
       if (BKE_layer_collection_has_layer_collection(lc_iter, lc)) {
         lc_parent = lc_iter;
         break;
@@ -1303,8 +1288,7 @@ void BKE_layer_collection_isolate_local(ViewLayer *view_layer,
     while (lc_parent != lc) {
       lc_parent->local_collections_bits |= v3d->local_collections_uuid;
 
-      for (LayerCollection *lc_iter = lc_parent->layer_collections.first; lc_iter;
-           lc_iter = lc_iter->next) {
+      LISTBASE_FOREACH (LayerCollection *, lc_iter, &lc_parent->layer_collections) {
         if (BKE_layer_collection_has_layer_collection(lc_iter, lc)) {
           lc_parent = lc_iter;
           break;
@@ -1322,12 +1306,12 @@ void BKE_layer_collection_isolate_local(ViewLayer *view_layer,
 static void layer_collection_bases_show_recursive(ViewLayer *view_layer, LayerCollection *lc)
 {
   if ((lc->flag & LAYER_COLLECTION_EXCLUDE) == 0) {
-    for (CollectionObject *cob = lc->collection->gobject.first; cob; cob = cob->next) {
+    LISTBASE_FOREACH (CollectionObject *, cob, &lc->collection->gobject) {
       Base *base = BKE_view_layer_base_find(view_layer, cob->ob);
       base->flag &= ~BASE_HIDDEN;
     }
   }
-  for (LayerCollection *lc_iter = lc->layer_collections.first; lc_iter; lc_iter = lc_iter->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc_iter, &lc->layer_collections) {
     layer_collection_bases_show_recursive(view_layer, lc_iter);
   }
 }
@@ -1335,12 +1319,12 @@ static void layer_collection_bases_show_recursive(ViewLayer *view_layer, LayerCo
 static void layer_collection_bases_hide_recursive(ViewLayer *view_layer, LayerCollection *lc)
 {
   if ((lc->flag & LAYER_COLLECTION_EXCLUDE) == 0) {
-    for (CollectionObject *cob = lc->collection->gobject.first; cob; cob = cob->next) {
+    LISTBASE_FOREACH (CollectionObject *, cob, &lc->collection->gobject) {
       Base *base = BKE_view_layer_base_find(view_layer, cob->ob);
       base->flag |= BASE_HIDDEN;
     }
   }
-  for (LayerCollection *lc_iter = lc->layer_collections.first; lc_iter; lc_iter = lc_iter->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc_iter, &lc->layer_collections) {
     layer_collection_bases_hide_recursive(view_layer, lc_iter);
   }
 }
@@ -1384,7 +1368,7 @@ static LayerCollection *find_layer_collection_by_scene_collection(LayerCollectio
     return lc;
   }
 
-  for (LayerCollection *nlc = lc->layer_collections.first; nlc; nlc = nlc->next) {
+  LISTBASE_FOREACH (LayerCollection *, nlc, &lc->layer_collections) {
     LayerCollection *found = find_layer_collection_by_scene_collection(nlc, collection);
     if (found) {
       return found;
@@ -1425,8 +1409,7 @@ bool BKE_view_layer_has_collection(ViewLayer *view_layer, const Collection *coll
  */
 bool BKE_scene_has_object(Scene *scene, Object *ob)
 {
-  for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-       view_layer = view_layer->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
     Base *base = BKE_view_layer_base_find(view_layer, ob);
     if (base) {
       return true;
@@ -1768,7 +1751,7 @@ static void layer_eval_view_layer(struct Depsgraph *depsgraph,
   view_layer->object_bases_array = MEM_malloc_arrayN(
       num_object_bases, sizeof(Base *), "view_layer->object_bases_array");
   int base_index = 0;
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     view_layer->object_bases_array[base_index++] = base;
   }
 }
diff --git a/source/blender/blenkernel/intern/lib_id.c b/source/blender/blenkernel/intern/lib_id.c
index 21e27784684..286ee4a8723 100644
--- a/source/blender/blenkernel/intern/lib_id.c
+++ b/source/blender/blenkernel/intern/lib_id.c
@@ -901,7 +901,7 @@ void BKE_main_id_flag_all(Main *bmain, const int flag, const bool value)
 void BKE_main_id_repair_duplicate_names_listbase(ListBase *lb)
 {
   int lb_len = 0;
-  for (ID *id = lb->first; id; id = id->next) {
+  LISTBASE_FOREACH (ID *, id, lb) {
     if (id->lib == NULL) {
       lb_len += 1;
     }
@@ -914,7 +914,7 @@ void BKE_main_id_repair_duplicate_names_listbase(ListBase *lb)
   ID **id_array = MEM_mallocN(sizeof(*id_array) * lb_len, __func__);
   GSet *gset = BLI_gset_str_new_ex(__func__, lb_len);
   int i = 0;
-  for (ID *id = lb->first; id; id = id->next) {
+  LISTBASE_FOREACH (ID *, id, lb) {
     if (id->lib == NULL) {
       id_array[i] = id;
       i++;
@@ -2218,14 +2218,14 @@ void BKE_id_ordered_list(ListBase *ordered_lb, const ListBase *lb)
 {
   BLI_listbase_clear(ordered_lb);
 
-  for (ID *id = lb->first; id; id = id->next) {
+  LISTBASE_FOREACH (ID *, id, lb) {
     BLI_addtail(ordered_lb, BLI_genericNodeN(id));
   }
 
   BLI_listbase_sort(ordered_lb, id_order_compare);
 
   int num = 0;
-  for (LinkData *link = ordered_lb->first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, ordered_lb) {
     int *order = id_order_get(link->data);
     if (order) {
       *order = num++;
@@ -2250,7 +2250,7 @@ void BKE_id_reorder(const ListBase *lb, ID *id, ID *relative, bool after)
 
   if (after) {
     /* Insert after. */
-    for (ID *other = lb->first; other; other = other->next) {
+    LISTBASE_FOREACH (ID *, other, lb) {
       int *order = id_order_get(other);
       if (*order > relative_order) {
         (*order)++;
@@ -2261,7 +2261,7 @@ void BKE_id_reorder(const ListBase *lb, ID *id, ID *relative, bool after)
   }
   else {
     /* Insert before. */
-    for (ID *other = lb->first; other; other = other->next) {
+    LISTBASE_FOREACH (ID *, other, lb) {
       int *order = id_order_get(other);
       if (*order < relative_order) {
         (*order)--;
diff --git a/source/blender/blenkernel/intern/lib_override.c b/source/blender/blenkernel/intern/lib_override.c
index 42d1806a41a..5b75b8ac181 100644
--- a/source/blender/blenkernel/intern/lib_override.c
+++ b/source/blender/blenkernel/intern/lib_override.c
@@ -153,7 +153,7 @@ void BKE_lib_override_library_clear(IDOverrideLibrary *override, const bool do_i
     BLI_ghash_clear(override->runtime, NULL, NULL);
   }
 
-  for (IDOverrideLibraryProperty *op = override->properties.first; op; op = op->next) {
+  LISTBASE_FOREACH (IDOverrideLibraryProperty *, op, &override->properties) {
     lib_override_library_property_clear(op);
   }
   BLI_freelistN(&override->properties);
@@ -371,7 +371,7 @@ void lib_override_library_property_clear(IDOverrideLibraryProperty *op)
 
   MEM_freeN(op->rna_path);
 
-  for (IDOverrideLibraryPropertyOperation *opop = op->operations.first; opop; opop = opop->next) {
+  LISTBASE_FOREACH (IDOverrideLibraryPropertyOperation *, opop, &op->operations) {
     lib_override_library_property_operation_clear(opop);
   }
   BLI_freelistN(&op->operations);
diff --git a/source/blender/blenkernel/intern/lib_query.c b/source/blender/blenkernel/intern/lib_query.c
index 21d7bb137fc..9c0fa33157c 100644
--- a/source/blender/blenkernel/intern/lib_query.c
+++ b/source/blender/blenkernel/intern/lib_query.c
@@ -182,7 +182,7 @@ static void library_foreach_idproperty_ID_link(LibraryForeachIDData *data,
 
   switch (prop->type) {
     case IDP_GROUP: {
-      for (IDProperty *loop = prop->data.group.first; loop; loop = loop->next) {
+      LISTBASE_FOREACH (IDProperty *, loop, &prop->data.group) {
         library_foreach_idproperty_ID_link(data, loop, flag);
       }
       break;
@@ -338,7 +338,7 @@ static void library_foreach_bone(LibraryForeachIDData *data, Bone *bone)
 {
   library_foreach_idproperty_ID_link(data, bone->prop, IDWALK_CB_USER);
 
-  for (Bone *curbone = bone->childbase.first; curbone; curbone = curbone->next) {
+  LISTBASE_FOREACH (Bone *, curbone, &bone->childbase) {
     library_foreach_bone(data, curbone);
   }
 
@@ -347,7 +347,7 @@ static void library_foreach_bone(LibraryForeachIDData *data, Bone *bone)
 
 static void library_foreach_layer_collection(LibraryForeachIDData *data, ListBase *lb)
 {
-  for (LayerCollection *lc = lb->first; lc; lc = lc->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc, lb) {
     /* XXX This is very weak. The whole idea of keeping pointers to private IDs is very bad
      * anyway... */
     const int cb_flag = (lc->collection != NULL &&
@@ -365,13 +365,13 @@ static void library_foreach_layer_collection(LibraryForeachIDData *data, ListBas
  */
 static void library_foreach_collection(LibraryForeachIDData *data, Collection *collection)
 {
-  for (CollectionObject *cob = collection->gobject.first; cob; cob = cob->next) {
+  LISTBASE_FOREACH (CollectionObject *, cob, &collection->gobject) {
     FOREACH_CALLBACK_INVOKE(data, cob->ob, IDWALK_CB_USER);
   }
-  for (CollectionChild *child = collection->children.first; child; child = child->next) {
+  LISTBASE_FOREACH (CollectionChild *, child, &collection->children) {
     FOREACH_CALLBACK_INVOKE(data, child->collection, IDWALK_CB_NEVER_SELF | IDWALK_CB_USER);
   }
-  for (CollectionParent *parent = collection->parents.first; parent; parent = parent->next) {
+  LISTBASE_FOREACH (CollectionParent *, parent, &collection->parents) {
     /* XXX This is very weak. The whole idea of keeping pointers to private IDs is very bad
      * anyway... */
     const int cb_flag = ((parent->collection != NULL &&
@@ -399,7 +399,7 @@ static void library_foreach_screen_area(LibraryForeachIDData *data, ScrArea *are
 {
   FOREACH_CALLBACK_INVOKE(data, area->full, IDWALK_CB_NOP);
 
-  for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+  LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
     switch (sl->spacetype) {
       case SPACE_VIEW3D: {
         View3D *v3d = (View3D *)sl;
@@ -678,7 +678,7 @@ static void library_foreach_ID_link(Main *bmain,
             CALLBACK_INVOKE(seq->mask, IDWALK_CB_USER);
             CALLBACK_INVOKE(seq->sound, IDWALK_CB_USER);
             library_foreach_idproperty_ID_link(&data, seq->prop, IDWALK_CB_USER);
-            for (SequenceModifierData *smd = seq->modifiers.first; smd; smd = smd->next) {
+            LISTBASE_FOREACH (SequenceModifierData *, smd, &seq->modifiers) {
               CALLBACK_INVOKE(smd->mask_id, IDWALK_CB_USER);
             }
 
@@ -699,21 +699,19 @@ static void library_foreach_ID_link(Main *bmain,
         for (view_layer = scene->view_layers.first; view_layer; view_layer = view_layer->next) {
           CALLBACK_INVOKE(view_layer->mat_override, IDWALK_CB_USER);
 
-          for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+          LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
             CALLBACK_INVOKE(base->object, IDWALK_CB_NOP);
           }
 
           library_foreach_layer_collection(&data, &view_layer->layer_collections);
 
-          for (FreestyleModuleConfig *fmc = view_layer->freestyle_config.modules.first; fmc;
-               fmc = fmc->next) {
+          LISTBASE_FOREACH (FreestyleModuleConfig *, fmc, &view_layer->freestyle_config.modules) {
             if (fmc->script) {
               CALLBACK_INVOKE(fmc->script, IDWALK_CB_NOP);
             }
           }
 
-          for (FreestyleLineSet *fls = view_layer->freestyle_config.linesets.first; fls;
-               fls = fls->next) {
+          LISTBASE_FOREACH (FreestyleLineSet *, fls, &view_layer->freestyle_config.linesets) {
             if (fls->group) {
               CALLBACK_INVOKE(fls->group, IDWALK_CB_USER);
             }
@@ -724,7 +722,7 @@ static void library_foreach_ID_link(Main *bmain,
           }
         }
 
-        for (TimeMarker *marker = scene->markers.first; marker; marker = marker->next) {
+        LISTBASE_FOREACH (TimeMarker *, marker, &scene->markers) {
           CALLBACK_INVOKE(marker->camera, IDWALK_CB_NOP);
         }
 
@@ -881,7 +879,7 @@ static void library_foreach_ID_link(Main *bmain,
       case ID_AR: {
         bArmature *arm = (bArmature *)id;
 
-        for (Bone *bone = arm->bonebase.first; bone; bone = bone->next) {
+        LISTBASE_FOREACH (Bone *, bone, &arm->bonebase) {
           library_foreach_bone(&data, bone);
         }
         break;
@@ -968,7 +966,7 @@ static void library_foreach_ID_link(Main *bmain,
       case ID_CA: {
         Camera *camera = (Camera *)id;
         CALLBACK_INVOKE(camera->dof.focus_object, IDWALK_CB_NOP);
-        for (CameraBGImage *bgpic = camera->bg_images.first; bgpic; bgpic = bgpic->next) {
+        LISTBASE_FOREACH (CameraBGImage *, bgpic, &camera->bg_images) {
           if (bgpic->source == CAM_BGIMG_SOURCE_IMAGE) {
             CALLBACK_INVOKE(bgpic->ima, IDWALK_CB_USER);
           }
@@ -1100,7 +1098,7 @@ static void library_foreach_ID_link(Main *bmain,
           }
         }
 
-        for (ParticleDupliWeight *dw = psett->instance_weights.first; dw; dw = dw->next) {
+        LISTBASE_FOREACH (ParticleDupliWeight *, dw, &psett->instance_weights) {
           CALLBACK_INVOKE(dw->ob, IDWALK_CB_NOP);
         }
         break;
@@ -1195,7 +1193,7 @@ static void library_foreach_ID_link(Main *bmain,
       case ID_AC: {
         bAction *act = (bAction *)id;
 
-        for (TimeMarker *marker = act->markers.first; marker; marker = marker->next) {
+        LISTBASE_FOREACH (TimeMarker *, marker, &act->markers) {
           CALLBACK_INVOKE(marker->camera, IDWALK_CB_NOP);
         }
         break;
@@ -1204,7 +1202,7 @@ static void library_foreach_ID_link(Main *bmain,
       case ID_WM: {
         wmWindowManager *wm = (wmWindowManager *)id;
 
-        for (wmWindow *win = wm->windows.first; win; win = win->next) {
+        LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
           CALLBACK_INVOKE(win->scene, IDWALK_CB_USER_ONE);
 
           /* This pointer can be NULL during old files reading, better be safe than sorry. */
@@ -1215,7 +1213,7 @@ static void library_foreach_ID_link(Main *bmain,
             BKE_workspace_active_set(win->workspace_hook, (WorkSpace *)workspace);
           }
           if (data.flag & IDWALK_INCLUDE_UI) {
-            for (ScrArea *area = win->global_areas.areabase.first; area; area = area->next) {
+            LISTBASE_FOREACH (ScrArea *, area, &win->global_areas.areabase) {
               library_foreach_screen_area(&data, area);
             }
           }
@@ -1227,7 +1225,7 @@ static void library_foreach_ID_link(Main *bmain,
         WorkSpace *workspace = (WorkSpace *)id;
         ListBase *layouts = BKE_workspace_layouts_get(workspace);
 
-        for (WorkSpaceLayout *layout = layouts->first; layout; layout = layout->next) {
+        LISTBASE_FOREACH (WorkSpaceLayout *, layout, layouts) {
           bScreen *screen = BKE_workspace_layout_screen_get(layout);
 
           /* CALLBACK_INVOKE expects an actual pointer, not a variable holding the pointer.
@@ -1280,7 +1278,7 @@ static void library_foreach_ID_link(Main *bmain,
         if (data.flag & IDWALK_INCLUDE_UI) {
           bScreen *screen = (bScreen *)id;
 
-          for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+          LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
             library_foreach_screen_area(&data, area);
           }
         }
@@ -1710,7 +1708,7 @@ void BKE_library_indirectly_used_data_tag_clear(Main *bmain)
     do_loop = false;
 
     while (i--) {
-      for (ID *id = lb_array[i]->first; id; id = id->next) {
+      LISTBASE_FOREACH (ID *, id, lb_array[i]) {
         if (id->lib == NULL || id->tag & LIB_TAG_DOIT) {
           /* Local or non-indirectly-used ID (so far), no need to check it further. */
           continue;
diff --git a/source/blender/blenkernel/intern/material.c b/source/blender/blenkernel/intern/material.c
index bcf4b29ec07..5516e877b10 100644
--- a/source/blender/blenkernel/intern/material.c
+++ b/source/blender/blenkernel/intern/material.c
@@ -1121,7 +1121,7 @@ static bool ntree_foreach_texnode_recursive(bNodeTree *nodetree,
                                             ForEachTexNodeCallback callback,
                                             void *userdata)
 {
-  for (bNode *node = nodetree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &nodetree->nodes) {
     if (node->typeinfo->nclass == NODE_CLASS_TEXTURE &&
         node->typeinfo->type == SH_NODE_TEX_IMAGE && node->id) {
       if (!callback(node, userdata)) {
diff --git a/source/blender/blenkernel/intern/mball.c b/source/blender/blenkernel/intern/mball.c
index 79e70ad2741..4294d279c36 100644
--- a/source/blender/blenkernel/intern/mball.c
+++ b/source/blender/blenkernel/intern/mball.c
@@ -430,9 +430,8 @@ Object *BKE_mball_basis_find(Scene *scene, Object *basis)
 
   BLI_split_name_num(basisname, &basisnr, basis->id.name + 2, '.');
 
-  for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-       view_layer = view_layer->next) {
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       Object *ob = base->object;
       if ((ob->type == OB_MBALL) && !(base->flag & BASE_FROM_DUPLI)) {
         if (ob != bob) {
@@ -463,7 +462,7 @@ bool BKE_mball_minmax_ex(
 
   INIT_MINMAX(min, max);
 
-  for (const MetaElem *ml = mb->elems.first; ml; ml = ml->next) {
+  LISTBASE_FOREACH (const MetaElem *, ml, &mb->elems) {
     if ((ml->flag & flag) == flag) {
       const float scale_mb = (ml->rad * 0.5f) * scale;
       int i;
@@ -493,7 +492,7 @@ bool BKE_mball_minmax(const MetaBall *mb, float min[3], float max[3])
 {
   INIT_MINMAX(min, max);
 
-  for (const MetaElem *ml = mb->elems.first; ml; ml = ml->next) {
+  LISTBASE_FOREACH (const MetaElem *, ml, &mb->elems) {
     minmax_v3v3_v3(min, max, &ml->x);
   }
 
@@ -506,7 +505,7 @@ bool BKE_mball_center_median(const MetaBall *mb, float r_cent[3])
 
   zero_v3(r_cent);
 
-  for (const MetaElem *ml = mb->elems.first; ml; ml = ml->next) {
+  LISTBASE_FOREACH (const MetaElem *, ml, &mb->elems) {
     add_v3_v3(r_cent, &ml->x);
     total++;
   }
@@ -538,7 +537,7 @@ void BKE_mball_transform(MetaBall *mb, const float mat[4][4], const bool do_prop
 
   mat4_to_quat(quat, mat);
 
-  for (MetaElem *ml = mb->elems.first; ml; ml = ml->next) {
+  LISTBASE_FOREACH (MetaElem *, ml, &mb->elems) {
     mul_m4_v3(mat, &ml->x);
     mul_qt_qtqt(ml->quat, quat, ml->quat);
 
@@ -558,7 +557,7 @@ void BKE_mball_transform(MetaBall *mb, const float mat[4][4], const bool do_prop
 
 void BKE_mball_translate(MetaBall *mb, const float offset[3])
 {
-  for (MetaElem *ml = mb->elems.first; ml; ml = ml->next) {
+  LISTBASE_FOREACH (MetaElem *, ml, &mb->elems) {
     add_v3_v3(&ml->x, offset);
   }
 }
@@ -567,7 +566,7 @@ void BKE_mball_translate(MetaBall *mb, const float offset[3])
 int BKE_mball_select_count(const MetaBall *mb)
 {
   int sel = 0;
-  for (const MetaElem *ml = mb->editelems->first; ml; ml = ml->next) {
+  LISTBASE_FOREACH (const MetaElem *, ml, mb->editelems) {
     if (ml->flag & SELECT) {
       sel++;
     }
@@ -589,7 +588,7 @@ int BKE_mball_select_count_multi(Base **bases, int bases_len)
 bool BKE_mball_select_all(MetaBall *mb)
 {
   bool changed = false;
-  for (MetaElem *ml = mb->editelems->first; ml; ml = ml->next) {
+  LISTBASE_FOREACH (MetaElem *, ml, mb->editelems) {
     if ((ml->flag & SELECT) == 0) {
       ml->flag |= SELECT;
       changed = true;
@@ -612,7 +611,7 @@ bool BKE_mball_select_all_multi_ex(Base **bases, int bases_len)
 bool BKE_mball_deselect_all(MetaBall *mb)
 {
   bool changed = false;
-  for (MetaElem *ml = mb->editelems->first; ml; ml = ml->next) {
+  LISTBASE_FOREACH (MetaElem *, ml, mb->editelems) {
     if ((ml->flag & SELECT) != 0) {
       ml->flag &= ~SELECT;
       changed = true;
@@ -636,7 +635,7 @@ bool BKE_mball_deselect_all_multi_ex(Base **bases, int bases_len)
 bool BKE_mball_select_swap(MetaBall *mb)
 {
   bool changed = false;
-  for (MetaElem *ml = mb->editelems->first; ml; ml = ml->next) {
+  LISTBASE_FOREACH (MetaElem *, ml, mb->editelems) {
     ml->flag ^= SELECT;
     changed = true;
   }
diff --git a/source/blender/blenkernel/intern/node.c b/source/blender/blenkernel/intern/node.c
index 98a7673c9d5..c3c538f3424 100644
--- a/source/blender/blenkernel/intern/node.c
+++ b/source/blender/blenkernel/intern/node.c
@@ -113,7 +113,7 @@ static void ntree_copy_data(Main *UNUSED(bmain), ID *id_dst, const ID *id_src, c
   /* Since source nodes and sockets are unique pointers we can put everything in a single map. */
   GHash *new_pointers = BLI_ghash_ptr_new(__func__);
 
-  for (const bNode *node_src = ntree_src->nodes.first; node_src; node_src = node_src->next) {
+  LISTBASE_FOREACH (const bNode *, node_src, &ntree_src->nodes) {
     bNode *new_node = BKE_node_copy_ex(ntree_dst, node_src, flag_subdata, true);
     BLI_ghash_insert(new_pointers, (void *)node_src, new_node);
     /* Store mapping to inputs. */
@@ -1634,7 +1634,7 @@ void nodePositionRelative(bNode *from_node,
 
 void nodePositionPropagate(bNode *node)
 {
-  for (bNodeSocket *nsock = node->inputs.first; nsock; nsock = nsock->next) {
+  LISTBASE_FOREACH (bNodeSocket *, nsock, &node->inputs) {
     if (nsock->link != NULL) {
       bNodeLink *link = nsock->link;
       nodePositionRelative(link->fromnode, link->tonode, link->fromsock, link->tosock);
@@ -2662,7 +2662,7 @@ void ntreeInterfaceTypeUpdate(bNodeTree *ntree)
 bNode *ntreeFindType(const bNodeTree *ntree, int type)
 {
   if (ntree) {
-    for (bNode *node = ntree->nodes.first; node; node = node->next) {
+    LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
       if (node->type == type) {
         return node;
       }
@@ -3396,7 +3396,7 @@ void ntreeUpdateAllNew(Main *main)
    * might have been set in file reading or versioning. */
   FOREACH_NODETREE_BEGIN (main, ntree, owner_id) {
     if (owner_id->tag & LIB_TAG_NEW) {
-      for (bNode *node = ntree->nodes.first; node; node = node->next) {
+      LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
         if (node->typeinfo->group_update_func) {
           node->typeinfo->group_update_func(ntree, node);
         }
@@ -3414,7 +3414,7 @@ void ntreeUpdateAllUsers(Main *main, ID *ngroup)
   FOREACH_NODETREE_BEGIN (main, ntree, owner_id) {
     bool need_update = false;
 
-    for (bNode *node = ntree->nodes.first; node; node = node->next) {
+    LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
       if (node->id == ngroup) {
         if (node->typeinfo->group_update_func) {
           node->typeinfo->group_update_func(ntree, node);
@@ -4245,7 +4245,7 @@ bool BKE_node_tree_iter_step(struct NodeTreeIterStore *ntreeiter,
 void BKE_nodetree_remove_layer_n(bNodeTree *ntree, Scene *scene, const int layer_index)
 {
   BLI_assert(layer_index != -1);
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == CMP_NODE_R_LAYERS && (Scene *)node->id == scene) {
       if (node->custom1 == layer_index) {
         node->custom1 = 0;
diff --git a/source/blender/blenkernel/intern/particle.c b/source/blender/blenkernel/intern/particle.c
index 87ac4428594..587dd5be2f2 100644
--- a/source/blender/blenkernel/intern/particle.c
+++ b/source/blender/blenkernel/intern/particle.c
@@ -479,7 +479,7 @@ void psys_find_group_weights(ParticleSettings *part)
     instance_collection_objects = BKE_collection_object_cache_get(part->instance_collection);
   }
 
-  for (ParticleDupliWeight *dw = part->instance_weights.first; dw; dw = dw->next) {
+  LISTBASE_FOREACH (ParticleDupliWeight *, dw, &part->instance_weights) {
     if (dw->ob == NULL) {
       Base *base = BLI_findlink(&instance_collection_objects, dw->index);
       if (base != NULL) {
diff --git a/source/blender/blenkernel/intern/pointcache.c b/source/blender/blenkernel/intern/pointcache.c
index b1cff53d399..78e7dec9f38 100644
--- a/source/blender/blenkernel/intern/pointcache.c
+++ b/source/blender/blenkernel/intern/pointcache.c
@@ -1839,7 +1839,7 @@ PTCacheID BKE_ptcache_id_find(Object *ob, Scene *scene, PointCache *cache)
   ListBase pidlist;
   BKE_ptcache_ids_from_object(&pidlist, ob, scene, MAX_DUPLI_RECUR);
 
-  for (PTCacheID *pid = pidlist.first; pid; pid = pid->next) {
+  LISTBASE_FOREACH (PTCacheID *, pid, &pidlist) {
     if (pid->cache == cache) {
       result = *pid;
       break;
diff --git a/source/blender/blenkernel/intern/scene.c b/source/blender/blenkernel/intern/scene.c
index 8cbc1ba4d8e..20f7add0c74 100644
--- a/source/blender/blenkernel/intern/scene.c
+++ b/source/blender/blenkernel/intern/scene.c
@@ -669,10 +669,9 @@ Scene *BKE_scene_copy(Main *bmain, Scene *sce, int type)
 
     if (type == SCE_COPY_FULL) {
       /* Copy Freestyle LineStyle datablocks. */
-      for (ViewLayer *view_layer_dst = sce_copy->view_layers.first; view_layer_dst;
-           view_layer_dst = view_layer_dst->next) {
-        for (FreestyleLineSet *lineset = view_layer_dst->freestyle_config.linesets.first; lineset;
-             lineset = lineset->next) {
+      LISTBASE_FOREACH (ViewLayer *, view_layer_dst, &sce_copy->view_layers) {
+        LISTBASE_FOREACH (
+            FreestyleLineSet *, lineset, &view_layer_dst->freestyle_config.linesets) {
           if (lineset->linestyle) {
             id_us_min(&lineset->linestyle->id);
             BKE_id_copy_ex(
@@ -732,8 +731,7 @@ Scene *BKE_scene_add(Main *bmain, const char *name)
  */
 bool BKE_scene_object_find(Scene *scene, Object *ob)
 {
-  for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-       view_layer = view_layer->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
     if (BLI_findptr(&view_layer->object_bases, ob, offsetof(Base, object))) {
       return true;
     }
@@ -743,9 +741,8 @@ bool BKE_scene_object_find(Scene *scene, Object *ob)
 
 Object *BKE_scene_object_find_by_name(const Scene *scene, const char *name)
 {
-  for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-       view_layer = view_layer->next) {
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       if (STREQ(base->object->id.name + 2, name)) {
         return base->object;
       }
@@ -773,9 +770,8 @@ void BKE_scene_set_background(Main *bmain, Scene *scene)
   }
 
   /* copy layers and flags from bases to objects */
-  for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-       view_layer = view_layer->next) {
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       ob = base->object;
       /* collection patch... */
       BKE_scene_object_base_flag_sync_from_base(base);
@@ -929,7 +925,7 @@ int BKE_scene_base_iter_next(
 Scene *BKE_scene_find_from_collection(const Main *bmain, const Collection *collection)
 {
   for (Scene *scene = bmain->scenes.first; scene; scene = scene->id.next) {
-    for (ViewLayer *layer = scene->view_layers.first; layer; layer = layer->next) {
+    LISTBASE_FOREACH (ViewLayer *, layer, &scene->view_layers) {
       if (BKE_view_layer_has_collection(layer, collection)) {
         return scene;
       }
@@ -955,7 +951,7 @@ Object *BKE_scene_camera_switch_find(Scene *scene)
   Object *camera = NULL;
   Object *first_camera = NULL;
 
-  for (TimeMarker *m = scene->markers.first; m; m = m->next) {
+  LISTBASE_FOREACH (TimeMarker *, m, &scene->markers) {
     if (m->camera && (m->camera->restrictflag & OB_RESTRICT_RENDER) == 0) {
       if ((m->frame <= cfra) && (m->frame > frame)) {
         camera = m->camera;
diff --git a/source/blender/blenkernel/intern/screen.c b/source/blender/blenkernel/intern/screen.c
index 37ea6c2cb4d..38bd0211d15 100644
--- a/source/blender/blenkernel/intern/screen.c
+++ b/source/blender/blenkernel/intern/screen.c
@@ -724,7 +724,7 @@ void BKE_screen_remove_unused_scrverts(bScreen *screen)
 ARegion *BKE_area_find_region_type(const ScrArea *area, int region_type)
 {
   if (area) {
-    for (ARegion *region = area->regionbase.first; region; region = region->next) {
+    LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
       if (region->regiontype == region_type) {
         return region;
       }
@@ -771,7 +771,7 @@ ARegion *BKE_area_find_region_xy(ScrArea *area, const int regiontype, int x, int
 ARegion *BKE_screen_find_region_xy(bScreen *screen, const int regiontype, int x, int y)
 {
   ARegion *region_found = NULL;
-  for (ARegion *region = screen->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, &screen->regionbase) {
     if ((regiontype == RGN_TYPE_ANY) || (region->regiontype == regiontype)) {
       if (BLI_rcti_isect_pt(&region->winrct, x, y)) {
         region_found = region;
@@ -828,7 +828,7 @@ ScrArea *BKE_screen_area_map_find_area_xy(const ScrAreaMap *areamap,
                                           int x,
                                           int y)
 {
-  for (ScrArea *area = areamap->areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &areamap->areabase) {
     if (BLI_rcti_isect_pt(&area->totrct, x, y)) {
       if ((spacetype == SPACE_TYPE_ANY) || (area->spacetype == spacetype)) {
         return area;
@@ -915,8 +915,8 @@ bool BKE_screen_is_used(const bScreen *screen)
 void BKE_screen_header_alignment_reset(bScreen *screen)
 {
   int alignment = (U.uiflag & USER_HEADER_BOTTOM) ? RGN_ALIGN_BOTTOM : RGN_ALIGN_TOP;
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-    for (ARegion *region = area->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+    LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
       if (ELEM(region->regiontype, RGN_TYPE_HEADER, RGN_TYPE_TOOL_HEADER)) {
         if (ELEM(area->spacetype, SPACE_FILE, SPACE_USERPREF, SPACE_OUTLINER, SPACE_PROPERTIES)) {
           region->alignment = RGN_ALIGN_TOP;
diff --git a/source/blender/blenkernel/intern/seqeffects.c b/source/blender/blenkernel/intern/seqeffects.c
index c471a6d254c..6acc50f30e9 100644
--- a/source/blender/blenkernel/intern/seqeffects.c
+++ b/source/blender/blenkernel/intern/seqeffects.c
@@ -3166,7 +3166,6 @@ void BKE_sequence_effect_speed_rebuild_map(Scene *scene, Sequence *seq, bool for
   /* XXX - new in 2.5x. should we use the animation system this way?
    * The fcurve is needed because many frames need evaluating at once - campbell */
   fcu = id_data_find_fcurve(&scene->id, seq, &RNA_Sequence, "speed_factor", 0, NULL);
-
   if (!v->frameMap || v->length != seq->len) {
     if (v->frameMap) {
       MEM_freeN(v->frameMap);
diff --git a/source/blender/blenkernel/intern/sequencer.c b/source/blender/blenkernel/intern/sequencer.c
index 996a9f34b61..0e558db57cb 100644
--- a/source/blender/blenkernel/intern/sequencer.c
+++ b/source/blender/blenkernel/intern/sequencer.c
@@ -1459,7 +1459,7 @@ static int evaluate_seq_frame_gen(Sequence **seq_arr, ListBase *seqbase, int cfr
 
   memset(seq_arr, 0, sizeof(Sequence *) * (MAXSEQ + 1));
 
-  for (Sequence *seq = seqbase->first; seq; seq = seq->next) {
+  LISTBASE_FOREACH (Sequence *, seq, seqbase) {
     if ((seq->startdisp <= cfra) && (seq->enddisp > cfra)) {
       if ((seq->type & SEQ_TYPE_EFFECT) && !(seq->flag & SEQ_MUTE)) {
 
diff --git a/source/blender/blenkernel/intern/text.c b/source/blender/blenkernel/intern/text.c
index 94c41777cea..3cdf3b40ce3 100644
--- a/source/blender/blenkernel/intern/text.c
+++ b/source/blender/blenkernel/intern/text.c
@@ -164,7 +164,7 @@ static void text_copy_data(Main *UNUSED(bmain),
   text_dst->compiled = NULL;
 
   /* Walk down, reconstructing. */
-  for (TextLine *line_src = text_src->lines.first; line_src; line_src = line_src->next) {
+  LISTBASE_FOREACH (TextLine *, line_src, &text_src->lines) {
     TextLine *line_dst = MEM_mallocN(sizeof(*line_dst), __func__);
 
     line_dst->line = BLI_strdup(line_src->line);
@@ -1311,12 +1311,12 @@ void txt_sel_set(Text *text, int startl, int startc, int endl, int endc)
 char *txt_to_buf_for_undo(Text *text, int *r_buf_len)
 {
   int buf_len = 0;
-  for (const TextLine *l = text->lines.first; l; l = l->next) {
+  LISTBASE_FOREACH (const TextLine *, l, &text->lines) {
     buf_len += l->len + 1;
   }
   char *buf = MEM_mallocN(buf_len, __func__);
   char *buf_step = buf;
-  for (const TextLine *l = text->lines.first; l; l = l->next) {
+  LISTBASE_FOREACH (const TextLine *, l, &text->lines) {
     memcpy(buf_step, l->line, l->len);
     buf_step += l->len;
     *buf_step++ = '\n';
diff --git a/source/blender/blenkernel/intern/texture.c b/source/blender/blenkernel/intern/texture.c
index fd85e5ca212..fe10861f96e 100644
--- a/source/blender/blenkernel/intern/texture.c
+++ b/source/blender/blenkernel/intern/texture.c
@@ -697,7 +697,7 @@ static void texture_nodes_fetch_images_for_pool(Tex *texture,
                                                 bNodeTree *ntree,
                                                 struct ImagePool *pool)
 {
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_TEX_IMAGE && node->id != NULL) {
       Image *image = (Image *)node->id;
       BKE_image_pool_acquire_ibuf(image, &texture->iuser, pool);
diff --git a/source/blender/blenkernel/intern/tracking_solver.c b/source/blender/blenkernel/intern/tracking_solver.c
index 5c1f6caad9d..46870a03e62 100644
--- a/source/blender/blenkernel/intern/tracking_solver.c
+++ b/source/blender/blenkernel/intern/tracking_solver.c
@@ -600,7 +600,7 @@ static void tracking_scale_reconstruction(ListBase *tracksbase,
     sub_v3_v3(camera->mat[3], first_camera_delta);
   }
 
-  for (MovieTrackingTrack *track = tracksbase->first; track; track = track->next) {
+  LISTBASE_FOREACH (MovieTrackingTrack *, track, tracksbase) {
     if (track->flag & TRACK_HAS_BUNDLE) {
       mul_v3_v3(track->bundle_pos, scale);
       sub_v3_v3(track->bundle_pos, first_camera_delta);
diff --git a/source/blender/blenkernel/intern/undo_system.c b/source/blender/blenkernel/intern/undo_system.c
index 847522a0a66..e776e9bedb0 100644
--- a/source/blender/blenkernel/intern/undo_system.c
+++ b/source/blender/blenkernel/intern/undo_system.c
@@ -110,7 +110,7 @@ static ListBase g_undo_types = {NULL, NULL};
 
 static const UndoType *BKE_undosys_type_from_context(bContext *C)
 {
-  for (const UndoType *ut = g_undo_types.first; ut; ut = ut->next) {
+  LISTBASE_FOREACH (const UndoType *, ut, &g_undo_types) {
     /* No poll means we don't check context. */
     if (ut->poll && ut->poll(C)) {
       return ut;
@@ -143,7 +143,7 @@ static void undosys_id_ref_resolve(void *user_data, UndoRefID *id_ref)
    * for now it's not too bad since it only runs when we access undo! */
   Main *bmain = user_data;
   ListBase *lb = which_libbase(bmain, GS(id_ref->name));
-  for (ID *id = lb->first; id; id = id->next) {
+  LISTBASE_FOREACH (ID *, id, lb) {
     if (STREQ(id_ref->name, id->name) && (id->lib == NULL)) {
       id_ref->ptr = id;
       break;
@@ -857,7 +857,7 @@ static void UNUSED_FUNCTION(BKE_undosys_foreach_ID_ref(UndoStack *ustack,
                                                        UndoTypeForEachIDRefFn foreach_ID_ref_fn,
                                                        void *user_data))
 {
-  for (UndoStep *us = ustack->steps.first; us; us = us->next) {
+  LISTBASE_FOREACH (UndoStep *, us, &ustack->steps) {
     const UndoType *ut = us->type;
     if (ut->step_foreach_ID_ref != NULL) {
       ut->step_foreach_ID_ref(us, foreach_ID_ref_fn, user_data);
@@ -876,7 +876,7 @@ void BKE_undosys_print(UndoStack *ustack)
   printf("Undo %d Steps (*: active, #=applied, M=memfile-active, S=skip)\n",
          BLI_listbase_count(&ustack->steps));
   int index = 0;
-  for (UndoStep *us = ustack->steps.first; us; us = us->next) {
+  LISTBASE_FOREACH (UndoStep *, us, &ustack->steps) {
     printf("[%c%c%c%c] %3d {%p} type='%s', name='%s'\n",
            (us == ustack->step_active) ? '*' : ' ',
            us->is_applied ? '#' : ' ',
diff --git a/source/blender/blenkernel/intern/workspace.c b/source/blender/blenkernel/intern/workspace.c
index 66a3c2cdced..c65d55785c1 100644
--- a/source/blender/blenkernel/intern/workspace.c
+++ b/source/blender/blenkernel/intern/workspace.c
@@ -396,7 +396,7 @@ void BKE_workspace_id_tag_all_visible(Main *bmain, int tag)
 {
   BKE_main_id_tag_listbase(&bmain->workspaces, tag, false);
   wmWindowManager *wm = bmain->wm.first;
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     WorkSpace *workspace = BKE_workspace_active_get(win->workspace_hook);
     workspace->id.tag |= tag;
   }
diff --git a/source/blender/blenlib/intern/array_store.c b/source/blender/blenlib/intern/array_store.c
index c87dbee0f0e..85fbe7ece0f 100644
--- a/source/blender/blenlib/intern/array_store.c
+++ b/source/blender/blenlib/intern/array_store.c
@@ -406,7 +406,7 @@ static void bchunk_list_decref(BArrayMemory *bs_mem, BChunkList *chunk_list)
 static size_t bchunk_list_data_check(const BChunkList *chunk_list, const uchar *data)
 {
   size_t offset = 0;
-  for (BChunkRef *cref = chunk_list->chunk_refs.first; cref; cref = cref->next) {
+  LISTBASE_FOREACH (BChunkRef *, cref, &chunk_list->chunk_refs) {
     if (memcmp(&data[offset], cref->link->data, cref->link->data_len) != 0) {
       return false;
     }
@@ -1511,7 +1511,7 @@ void BLI_array_store_clear(BArrayStore *bs)
 size_t BLI_array_store_calc_size_expanded_get(const BArrayStore *bs)
 {
   size_t size_accum = 0;
-  for (const BArrayState *state = bs->states.first; state; state = state->next) {
+  LISTBASE_FOREACH (const BArrayState *, state, &bs->states) {
     size_accum += state->chunk_list->total_size;
   }
   return size_accum;
@@ -1632,14 +1632,14 @@ void BLI_array_store_state_data_get(BArrayState *state, void *data)
 {
 #ifdef USE_PARANOID_CHECKS
   size_t data_test_len = 0;
-  for (BChunkRef *cref = state->chunk_list->chunk_refs.first; cref; cref = cref->next) {
+  LISTBASE_FOREACH (BChunkRef *, cref, &state->chunk_list->chunk_refs) {
     data_test_len += cref->link->data_len;
   }
   BLI_assert(data_test_len == state->chunk_list->total_size);
 #endif
 
   uchar *data_step = (uchar *)data;
-  for (BChunkRef *cref = state->chunk_list->chunk_refs.first; cref; cref = cref->next) {
+  LISTBASE_FOREACH (BChunkRef *, cref, &state->chunk_list->chunk_refs) {
     BLI_assert(cref->link->users > 0);
     memcpy(data_step, cref->link->data, cref->link->data_len);
     data_step += cref->link->data_len;
@@ -1666,7 +1666,7 @@ void *BLI_array_store_state_data_get_alloc(BArrayState *state, size_t *r_data_le
 static size_t bchunk_list_size(const BChunkList *chunk_list)
 {
   size_t total_size = 0;
-  for (BChunkRef *cref = chunk_list->chunk_refs.first; cref; cref = cref->next) {
+  LISTBASE_FOREACH (BChunkRef *, cref, &chunk_list->chunk_refs) {
     total_size += cref->link->data_len;
   }
   return total_size;
@@ -1679,7 +1679,7 @@ bool BLI_array_store_is_valid(BArrayStore *bs)
   /* Check Length
    * ------------ */
 
-  for (BArrayState *state = bs->states.first; state; state = state->next) {
+  LISTBASE_FOREACH (BArrayState *, state, &bs->states) {
     BChunkList *chunk_list = state->chunk_list;
     if (!(bchunk_list_size(chunk_list) == chunk_list->total_size)) {
       return false;
@@ -1692,7 +1692,7 @@ bool BLI_array_store_is_valid(BArrayStore *bs)
 #ifdef USE_MERGE_CHUNKS
     /* ensure we merge all chunks that could be merged */
     if (chunk_list->total_size > bs->info.chunk_byte_size_min) {
-      for (BChunkRef *cref = chunk_list->chunk_refs.first; cref; cref = cref->next) {
+      LISTBASE_FOREACH (BChunkRef *, cref, &chunk_list->chunk_refs) {
         if (cref->link->data_len < bs->info.chunk_byte_size_min) {
           return false;
         }
@@ -1734,7 +1734,7 @@ bool BLI_array_store_is_valid(BArrayStore *bs)
     GHash *chunk_map = BLI_ghash_ptr_new(__func__);
 
     int totrefs = 0;
-    for (BArrayState *state = bs->states.first; state; state = state->next) {
+    LISTBASE_FOREACH (BArrayState *, state, &bs->states) {
       GHASH_PTR_ADD_USER(chunk_list_map, state->chunk_list);
     }
     GHASH_ITER (gh_iter, chunk_list_map) {
@@ -1753,7 +1753,7 @@ bool BLI_array_store_is_valid(BArrayStore *bs)
     /* count chunk's */
     GHASH_ITER (gh_iter, chunk_list_map) {
       const struct BChunkList *chunk_list = BLI_ghashIterator_getKey(&gh_iter);
-      for (const BChunkRef *cref = chunk_list->chunk_refs.first; cref; cref = cref->next) {
+      LISTBASE_FOREACH (const BChunkRef *, cref, &chunk_list->chunk_refs) {
         GHASH_PTR_ADD_USER(chunk_map, cref->link);
         totrefs += 1;
       }
diff --git a/source/blender/blenlib/intern/threads.c b/source/blender/blenlib/intern/threads.c
index 0a574ea34ca..31e8581590a 100644
--- a/source/blender/blenlib/intern/threads.c
+++ b/source/blender/blenlib/intern/threads.c
@@ -93,11 +93,9 @@ static TaskScheduler *task_scheduler = NULL;
  *         for (go over all jobs)
  *             if (job is ready) {
  *                 if (job was not removed) {
- *                     BLI_threadpool_remove(&lb, job);
- *                 }
+ *                     BLI_threadpool_remove(&lb, job); *                 }
  *             }
- *             else cont = 1;
- *         }
+ *             else cont = 1; *         }
  *         // conditions to exit loop
  *         if (if escape loop event) {
  *             if (BLI_available_threadslots(&lb) == maxthreads) {
diff --git a/source/blender/blenloader/intern/readfile.c b/source/blender/blenloader/intern/readfile.c
index 259602ecec6..84af4d1a3d4 100644
--- a/source/blender/blenloader/intern/readfile.c
+++ b/source/blender/blenloader/intern/readfile.c
@@ -2670,7 +2670,7 @@ static void IDP_LibLinkProperty(IDProperty *prop, FileData *fd)
     }
     case IDP_GROUP: /* PointerProperty */
     {
-      for (IDProperty *loop = prop->data.group.first; loop; loop = loop->next) {
+      LISTBASE_FOREACH (IDProperty *, loop, &prop->data.group) {
         IDP_LibLinkProperty(loop, fd);
       }
       break;
@@ -3030,7 +3030,7 @@ static PackedFile *direct_link_packedfile(FileData *fd, PackedFile *oldpf)
 // XXX deprecated - old animation system
 static void lib_link_ipo(FileData *fd, Main *UNUSED(bmain), Ipo *ipo)
 {
-  for (IpoCurve *icu = ipo->curve.first; icu; icu = icu->next) {
+  LISTBASE_FOREACH (IpoCurve *, icu, &ipo->curve) {
     if (icu->driver) {
       icu->driver->ob = newlibadr(fd, ipo->id.lib, icu->driver->ob);
     }
@@ -3251,7 +3251,7 @@ static void direct_link_fcurves(FileData *fd, ListBase *list)
 static void lib_link_action(FileData *fd, Main *UNUSED(bmain), bAction *act)
 {
   // XXX deprecated - old animation system <<<
-  for (bActionChannel *chan = act->chanbase.first; chan; chan = chan->next) {
+  LISTBASE_FOREACH (bActionChannel *, chan, &act->chanbase) {
     chan->ipo = newlibadr(fd, act->id.lib, chan->ipo);
     lib_link_constraint_channels(fd, &act->id, &chan->constraintChannels);
   }
@@ -3259,7 +3259,7 @@ static void lib_link_action(FileData *fd, Main *UNUSED(bmain), bAction *act)
 
   lib_link_fcurves(fd, &act->id, &act->curves);
 
-  for (TimeMarker *marker = act->markers.first; marker; marker = marker->next) {
+  LISTBASE_FOREACH (TimeMarker *, marker, &act->markers) {
     if (marker->camera) {
       marker->camera = newlibadr(fd, act->id.lib, marker->camera);
     }
@@ -3515,8 +3515,7 @@ static void direct_link_workspace(FileData *fd, WorkSpace *workspace, const Main
   link_list(fd, &workspace->owner_ids);
   link_list(fd, &workspace->tools);
 
-  for (WorkSpaceDataRelation *relation = workspace->hook_layout_relations.first; relation;
-       relation = relation->next) {
+  LISTBASE_FOREACH (WorkSpaceDataRelation *, relation, &workspace->hook_layout_relations) {
 
     /* data from window - need to access through global oldnew-map */
     relation->parent = newglobadr(fd, relation->parent);
@@ -3527,7 +3526,7 @@ static void direct_link_workspace(FileData *fd, WorkSpace *workspace, const Main
   /* Same issue/fix as in direct_link_workspace_link_scene_data: Can't read workspace data
    * when reading windows, so have to update windows after/when reading workspaces. */
   for (wmWindowManager *wm = main->wm.first; wm; wm = wm->id.next) {
-    for (wmWindow *win = wm->windows.first; win; win = win->next) {
+    LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
       WorkSpaceLayout *act_layout = newdataadr(
           fd, BKE_workspace_active_layout_get(win->workspace_hook));
       if (act_layout) {
@@ -3536,7 +3535,7 @@ static void direct_link_workspace(FileData *fd, WorkSpace *workspace, const Main
     }
   }
 
-  for (bToolRef *tref = workspace->tools.first; tref; tref = tref->next) {
+  LISTBASE_FOREACH (bToolRef *, tref, &workspace->tools) {
     tref->runtime = NULL;
     tref->properties = newdataadr(fd, tref->properties);
     IDP_DirectLinkGroup_OrFree(&tref->properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
@@ -3564,25 +3563,25 @@ static void lib_link_ntree(FileData *fd, Library *lib, bNodeTree *ntree)
 
   ntree->gpd = newlibadr(fd, lib, ntree->gpd);
 
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     /* Link ID Properties -- and copy this comment EXACTLY for easy finding
      * of library blocks that implement this.*/
     IDP_LibLinkProperty(node->prop, fd);
 
     node->id = newlibadr(fd, lib, node->id);
 
-    for (bNodeSocket *sock = node->inputs.first; sock; sock = sock->next) {
+    LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
       IDP_LibLinkProperty(sock->prop, fd);
     }
-    for (bNodeSocket *sock = node->outputs.first; sock; sock = sock->next) {
+    LISTBASE_FOREACH (bNodeSocket *, sock, &node->outputs) {
       IDP_LibLinkProperty(sock->prop, fd);
     }
   }
 
-  for (bNodeSocket *sock = ntree->inputs.first; sock; sock = sock->next) {
+  LISTBASE_FOREACH (bNodeSocket *, sock, &ntree->inputs) {
     IDP_LibLinkProperty(sock->prop, fd);
   }
-  for (bNodeSocket *sock = ntree->outputs.first; sock; sock = sock->next) {
+  LISTBASE_FOREACH (bNodeSocket *, sock, &ntree->outputs) {
     IDP_LibLinkProperty(sock->prop, fd);
   }
 
@@ -3595,7 +3594,7 @@ static void lib_link_ntree(FileData *fd, Library *lib, bNodeTree *ntree)
   /* For nodes with static socket layout, add/remove sockets as needed
    * to match the static layout. */
   if (fd->memfile == NULL) {
-    for (bNode *node = ntree->nodes.first; node; node = node->next) {
+    LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
       node_verify_socket_templates(ntree, node);
     }
   }
@@ -3929,7 +3928,7 @@ static void lib_link_pose(FileData *fd, Main *bmain, Object *ob, bPose *pose)
     }
   }
 
-  for (bPoseChannel *pchan = pose->chanbase.first; pchan; pchan = pchan->next) {
+  LISTBASE_FOREACH (bPoseChannel *, pchan, &pose->chanbase) {
     lib_link_constraints(fd, (ID *)ob, &pchan->constraints);
 
     pchan->bone = BKE_armature_find_bone_name(arm, pchan->name);
@@ -3958,14 +3957,14 @@ static void lib_link_bones(FileData *fd, Bone *bone)
 {
   IDP_LibLinkProperty(bone->prop, fd);
 
-  for (Bone *curbone = bone->childbase.first; curbone; curbone = curbone->next) {
+  LISTBASE_FOREACH (Bone *, curbone, &bone->childbase) {
     lib_link_bones(fd, curbone);
   }
 }
 
 static void lib_link_armature(FileData *fd, Main *UNUSED(bmain), bArmature *arm)
 {
-  for (Bone *curbone = arm->bonebase.first; curbone; curbone = curbone->next) {
+  LISTBASE_FOREACH (Bone *, curbone, &arm->bonebase) {
     lib_link_bones(fd, curbone);
   }
 }
@@ -4026,7 +4025,7 @@ static void lib_link_camera(FileData *fd, Main *UNUSED(bmain), Camera *ca)
   ca->dof_ob = newlibadr(fd, ca->id.lib, ca->dof_ob); /* deprecated, for versioning */
   ca->dof.focus_object = newlibadr(fd, ca->id.lib, ca->dof.focus_object);
 
-  for (CameraBGImage *bgpic = ca->bg_images.first; bgpic; bgpic = bgpic->next) {
+  LISTBASE_FOREACH (CameraBGImage *, bgpic, &ca->bg_images) {
     bgpic->ima = newlibadr(fd, ca->id.lib, bgpic->ima);
     bgpic->clip = newlibadr(fd, ca->id.lib, bgpic->clip);
   }
@@ -4039,7 +4038,7 @@ static void direct_link_camera(FileData *fd, Camera *ca)
 
   link_list(fd, &ca->bg_images);
 
-  for (CameraBGImage *bgpic = ca->bg_images.first; bgpic; bgpic = bgpic->next) {
+  LISTBASE_FOREACH (CameraBGImage *, bgpic, &ca->bg_images) {
     bgpic->iuser.ok = 1;
     bgpic->iuser.scene = NULL;
   }
@@ -4614,7 +4613,7 @@ static void lib_link_particlesettings(FileData *fd, Main *UNUSED(bmain), Particl
   }
 
   if (part->instance_weights.first && part->instance_collection) {
-    for (ParticleDupliWeight *dw = part->instance_weights.first; dw; dw = dw->next) {
+    LISTBASE_FOREACH (ParticleDupliWeight *, dw, &part->instance_weights) {
       dw->ob = newlibadr(fd, part->id.lib, dw->ob);
     }
   }
@@ -5259,7 +5258,7 @@ static void lib_link_object(FileData *fd, Main *bmain, Object *ob)
   lib_link_nlastrips(fd, &ob->id, &ob->nlastrips);
   // >>> XXX deprecated - old animation system
 
-  for (PartEff *paf = ob->effect.first; paf; paf = paf->next) {
+  LISTBASE_FOREACH (PartEff *, paf, &ob->effect) {
     if (paf->type == EFF_PARTICLE) {
       paf->group = newlibadr(fd, ob->id.lib, paf->group);
     }
@@ -6204,7 +6203,7 @@ static void direct_link_view_settings(FileData *fd, ColorManagedViewSettings *vi
 static void direct_link_layer_collections(FileData *fd, ListBase *lb, bool master)
 {
   link_list(fd, lb);
-  for (LayerCollection *lc = lb->first; lc; lc = lc->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc, lb) {
 #ifdef USE_COLLECTION_COMPAT_28
     lc->scene_collection = newdataadr(fd, lc->scene_collection);
 #endif
@@ -6257,12 +6256,11 @@ static void lib_link_layer_collection(FileData *fd,
 
 static void lib_link_view_layer(FileData *fd, Library *lib, ViewLayer *view_layer)
 {
-  for (FreestyleModuleConfig *fmc = view_layer->freestyle_config.modules.first; fmc;
-       fmc = fmc->next) {
+  LISTBASE_FOREACH (FreestyleModuleConfig *, fmc, &view_layer->freestyle_config.modules) {
     fmc->script = newlibadr(fd, lib, fmc->script);
   }
 
-  for (FreestyleLineSet *fls = view_layer->freestyle_config.linesets.first; fls; fls = fls->next) {
+  LISTBASE_FOREACH (FreestyleLineSet *, fls, &view_layer->freestyle_config.linesets) {
     fls->linestyle = newlibadr(fd, lib, fls->linestyle);
     fls->group = newlibadr(fd, lib, fls->group);
   }
@@ -6305,19 +6303,19 @@ static void direct_link_scene_collection(FileData *fd, SceneCollection *sc)
   link_list(fd, &sc->objects);
   link_list(fd, &sc->scene_collections);
 
-  for (SceneCollection *nsc = sc->scene_collections.first; nsc; nsc = nsc->next) {
+  LISTBASE_FOREACH (SceneCollection *, nsc, &sc->scene_collections) {
     direct_link_scene_collection(fd, nsc);
   }
 }
 
 static void lib_link_scene_collection(FileData *fd, Library *lib, SceneCollection *sc)
 {
-  for (LinkData *link = sc->objects.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &sc->objects) {
     link->data = newlibadr(fd, lib, link->data);
     BLI_assert(link->data);
   }
 
-  for (SceneCollection *nsc = sc->scene_collections.first; nsc; nsc = nsc->next) {
+  LISTBASE_FOREACH (SceneCollection *, nsc, &sc->scene_collections) {
     lib_link_scene_collection(fd, lib, nsc);
   }
 }
@@ -6625,7 +6623,7 @@ static void lib_link_scene(FileData *fd, Main *UNUSED(bmain), Scene *sce)
   }
   SEQ_END;
 
-  for (TimeMarker *marker = sce->markers.first; marker; marker = marker->next) {
+  LISTBASE_FOREACH (TimeMarker *, marker, &sce->markers) {
     if (marker->camera) {
       marker->camera = newlibadr(fd, sce->id.lib, marker->camera);
     }
@@ -6649,12 +6647,12 @@ static void lib_link_scene(FileData *fd, Main *UNUSED(bmain), Scene *sce)
     composite_patch(sce->nodetree, sce);
   }
 
-  for (SceneRenderLayer *srl = sce->r.layers.first; srl; srl = srl->next) {
+  LISTBASE_FOREACH (SceneRenderLayer *, srl, &sce->r.layers) {
     srl->mat_override = newlibadr(fd, sce->id.lib, srl->mat_override);
-    for (FreestyleModuleConfig *fmc = srl->freestyleConfig.modules.first; fmc; fmc = fmc->next) {
+    LISTBASE_FOREACH (FreestyleModuleConfig *, fmc, &srl->freestyleConfig.modules) {
       fmc->script = newlibadr(fd, sce->id.lib, fmc->script);
     }
-    for (FreestyleLineSet *fls = srl->freestyleConfig.linesets.first; fls; fls = fls->next) {
+    LISTBASE_FOREACH (FreestyleLineSet *, fls, &srl->freestyleConfig.linesets) {
       fls->linestyle = newlibadr(fd, sce->id.lib, fls->linestyle);
       fls->group = newlibadr(fd, sce->id.lib, fls->group);
     }
@@ -6668,7 +6666,7 @@ static void lib_link_scene(FileData *fd, Main *UNUSED(bmain), Scene *sce)
   }
 #endif
 
-  for (ViewLayer *view_layer = sce->view_layers.first; view_layer; view_layer = view_layer->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &sce->view_layers) {
     lib_link_view_layer(fd, sce->id.lib, view_layer);
   }
 
@@ -7199,7 +7197,7 @@ static void direct_link_panel_list(FileData *fd, ListBase *lb)
 {
   link_list(fd, lb);
 
-  for (Panel *pa = lb->first; pa; pa = pa->next) {
+  LISTBASE_FOREACH (Panel *, pa, lb) {
     pa->runtime_flag = 0;
     pa->activedata = NULL;
     pa->type = NULL;
@@ -7524,7 +7522,7 @@ static void lib_link_area(FileData *fd, ID *parent_id, ScrArea *area)
 
   memset(&area->runtime, 0x0, sizeof(area->runtime));
 
-  for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+  LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
     switch (sl->spacetype) {
       case SPACE_VIEW3D: {
         View3D *v3d = (View3D *)sl;
@@ -7701,12 +7699,12 @@ static bool direct_link_area_map(FileData *fd, ScrAreaMap *area_map)
   link_list(fd, &area_map->vertbase);
   link_list(fd, &area_map->edgebase);
   link_list(fd, &area_map->areabase);
-  for (ScrArea *area = area_map->areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &area_map->areabase) {
     direct_link_area(fd, area);
   }
 
   /* edges */
-  for (ScrEdge *se = area_map->edgebase.first; se; se = se->next) {
+  LISTBASE_FOREACH (ScrEdge *, se, &area_map->edgebase) {
     se->v1 = newdataadr(fd, se->v1);
     se->v2 = newdataadr(fd, se->v2);
     BKE_screen_sort_scrvert(&se->v1, &se->v2);
@@ -7823,7 +7821,7 @@ static void direct_link_windowmanager(FileData *fd, wmWindowManager *wm)
 
 static void lib_link_windowmanager(FileData *fd, Main *UNUSED(bmain), wmWindowManager *wm)
 {
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     if (win->workspace_hook) { /* NULL for old files */
       lib_link_workspace_instance_hook(fd, win->workspace_hook, &wm->id);
     }
@@ -7831,7 +7829,7 @@ static void lib_link_windowmanager(FileData *fd, Main *UNUSED(bmain), wmWindowMa
     /* deprecated, but needed for versioning (will be NULL'ed then) */
     win->screen = newlibadr(fd, NULL, win->screen);
 
-    for (ScrArea *area = win->global_areas.areabase.first; area; area = area->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &win->global_areas.areabase) {
       lib_link_area(fd, &wm->id, area);
     }
 
@@ -7856,7 +7854,7 @@ static void lib_link_screen(FileData *fd, Main *UNUSED(bmain), bScreen *screen)
   screen->tool_tip = NULL;
   screen->scrubbing = false;
 
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
     lib_link_area(fd, &screen->id, area);
   }
 }
@@ -8010,8 +8008,8 @@ static void lib_link_window_scene_data_restore(wmWindow *win, Scene *scene, View
 {
   bScreen *screen = BKE_workspace_active_screen_get(win->workspace_hook);
 
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-    for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+    LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
       if (sl->spacetype == SPACE_VIEW3D) {
         View3D *v3d = (View3D *)sl;
 
@@ -8039,7 +8037,7 @@ static void lib_link_window_scene_data_restore(wmWindow *win, Scene *scene, View
             /* Regionbase storage is different depending if the space is active. */
             ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
                                                                    &sl->regionbase;
-            for (ARegion *region = regionbase->first; region; region = region->next) {
+            LISTBASE_FOREACH (ARegion *, region, regionbase) {
               if (region->regiontype == RGN_TYPE_WINDOW) {
                 RegionView3D *rv3d = region->regiondata;
                 if (rv3d->localvd) {
@@ -8063,8 +8061,8 @@ static void lib_link_workspace_layout_restore(struct IDNameLib_Map *id_map,
 
   /* avoid conflicts with 2.8x branch */
   {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-      for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+      LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
         if (sl->spacetype == SPACE_VIEW3D) {
           View3D *v3d = (View3D *)sl;
           ARegion *region;
@@ -8303,12 +8301,12 @@ void blo_lib_link_restore(Main *oldmain,
        workspace = workspace->id.next) {
     ListBase *layouts = BKE_workspace_layouts_get(workspace);
 
-    for (WorkSpaceLayout *layout = layouts->first; layout; layout = layout->next) {
+    LISTBASE_FOREACH (WorkSpaceLayout *, layout, layouts) {
       lib_link_workspace_layout_restore(id_map, newmain, layout);
     }
   }
 
-  for (wmWindow *win = curwm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &curwm->windows) {
     WorkSpace *workspace = BKE_workspace_active_get(win->workspace_hook);
     ID *workspace_id = (ID *)workspace;
     Scene *oldscene = win->scene;
@@ -8686,7 +8684,7 @@ static void lib_link_movieclip(FileData *fd, Main *UNUSED(bmain), MovieClip *cli
   lib_link_movieTracks(fd, clip, &tracking->tracks);
   lib_link_moviePlaneTracks(fd, clip, &tracking->plane_tracks);
 
-  for (MovieTrackingObject *object = tracking->objects.first; object; object = object->next) {
+  LISTBASE_FOREACH (MovieTrackingObject *, object, &tracking->objects) {
     lib_link_movieTracks(fd, clip, &object->tracks);
     lib_link_moviePlaneTracks(fd, clip, &object->plane_tracks);
   }
@@ -8763,7 +8761,7 @@ static void lib_link_mask_parent(FileData *fd, Mask *mask, MaskParent *parent)
 
 static void lib_link_mask(FileData *fd, Main *UNUSED(bmain), Mask *mask)
 {
-  for (MaskLayer *masklay = mask->masklayers.first; masklay; masklay = masklay->next) {
+  LISTBASE_FOREACH (MaskLayer *, masklay, &mask->masklayers) {
     MaskSpline *spline;
 
     spline = masklay->splines.first;
@@ -10119,14 +10117,14 @@ static BHead *read_userdef(BlendFileData *bfd, FileData *fd, BHead *bhead)
     }
   }
 
-  for (wmKeyConfigPref *kpt = user->user_keyconfig_prefs.first; kpt; kpt = kpt->next) {
+  LISTBASE_FOREACH (wmKeyConfigPref *, kpt, &user->user_keyconfig_prefs) {
     kpt->prop = newdataadr(fd, kpt->prop);
     IDP_DirectLinkGroup_OrFree(&kpt->prop, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
   }
 
-  for (bUserMenu *um = user->user_menus.first; um; um = um->next) {
+  LISTBASE_FOREACH (bUserMenu *, um, &user->user_menus) {
     link_list(fd, &um->items);
-    for (bUserMenuItem *umi = um->items.first; umi; umi = umi->next) {
+    LISTBASE_FOREACH (bUserMenuItem *, umi, &um->items) {
       if (umi->type == USER_MENU_TYPE_OPERATOR) {
         bUserMenuItem_Op *umi_op = (bUserMenuItem_Op *)umi;
         umi_op->prop = newdataadr(fd, umi_op->prop);
@@ -10288,7 +10286,7 @@ BlendFileData *blo_read_file_internal(FileData *fd, const char *filepath)
 
       /* Yep, second splitting... but this is a very cheap operation, so no big deal. */
       blo_split_main(&mainlist, bfd->main);
-      for (Main *mainvar = mainlist.first; mainvar; mainvar = mainvar->next) {
+      LISTBASE_FOREACH (Main *, mainvar, &mainlist) {
         BLI_assert(mainvar->versionfile != 0);
         do_versions_after_linking(mainvar, fd->reports);
       }
@@ -10706,7 +10704,7 @@ static void expand_idprops(FileData *fd, Main *mainvar, IDProperty *prop)
       break;
     }
     case IDP_GROUP:
-      for (IDProperty *loop = prop->data.group.first; loop; loop = loop->next) {
+      LISTBASE_FOREACH (IDProperty *, loop, &prop->data.group) {
         expand_idprops(fd, mainvar, loop);
       }
       break;
@@ -10766,7 +10764,7 @@ static void expand_action(FileData *fd, Main *mainvar, bAction *act)
   /* F-Curves in Action */
   expand_fcurves(fd, mainvar, &act->curves);
 
-  for (TimeMarker *marker = act->markers.first; marker; marker = marker->next) {
+  LISTBASE_FOREACH (TimeMarker *, marker, &act->markers) {
     if (marker->camera) {
       expand_doit(fd, mainvar, marker->camera);
     }
@@ -10834,18 +10832,18 @@ static void expand_particlesettings(FileData *fd, Main *mainvar, ParticleSetting
     }
   }
 
-  for (ParticleDupliWeight *dw = part->instance_weights.first; dw; dw = dw->next) {
+  LISTBASE_FOREACH (ParticleDupliWeight *, dw, &part->instance_weights) {
     expand_doit(fd, mainvar, dw->ob);
   }
 }
 
 static void expand_collection(FileData *fd, Main *mainvar, Collection *collection)
 {
-  for (CollectionObject *cob = collection->gobject.first; cob; cob = cob->next) {
+  LISTBASE_FOREACH (CollectionObject *, cob, &collection->gobject) {
     expand_doit(fd, mainvar, cob->ob);
   }
 
-  for (CollectionChild *child = collection->children.first; child; child = child->next) {
+  LISTBASE_FOREACH (CollectionChild *, child, &collection->children) {
     expand_doit(fd, mainvar, child->collection);
   }
 
@@ -11030,14 +11028,14 @@ static void expand_bones(FileData *fd, Main *mainvar, Bone *bone)
 {
   expand_idprops(fd, mainvar, bone->prop);
 
-  for (Bone *curBone = bone->childbase.first; curBone; curBone = curBone->next) {
+  LISTBASE_FOREACH (Bone *, curBone, &bone->childbase) {
     expand_bones(fd, mainvar, curBone);
   }
 }
 
 static void expand_armature(FileData *fd, Main *mainvar, bArmature *arm)
 {
-  for (Bone *curBone = arm->bonebase.first; curBone; curBone = curBone->next) {
+  LISTBASE_FOREACH (Bone *, curBone, &arm->bonebase) {
     expand_bones(fd, mainvar, curBone);
   }
 }
@@ -11175,11 +11173,11 @@ static void expand_object(FileData *fd, Main *mainvar, Object *ob)
 #ifdef USE_COLLECTION_COMPAT_28
 static void expand_scene_collection(FileData *fd, Main *mainvar, SceneCollection *sc)
 {
-  for (LinkData *link = sc->objects.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &sc->objects) {
     expand_doit(fd, mainvar, link->data);
   }
 
-  for (SceneCollection *nsc = sc->scene_collections.first; nsc; nsc = nsc->next) {
+  LISTBASE_FOREACH (SceneCollection *, nsc, &sc->scene_collections) {
     expand_scene_collection(fd, mainvar, nsc);
   }
 }
@@ -11191,7 +11189,7 @@ static void expand_scene(FileData *fd, Main *mainvar, Scene *sce)
   FreestyleModuleConfig *module;
   FreestyleLineSet *lineset;
 
-  for (Base *base_legacy = sce->base.first; base_legacy; base_legacy = base_legacy->next) {
+  LISTBASE_FOREACH (Base *, base_legacy, &sce->base) {
     expand_doit(fd, mainvar, base_legacy->object);
   }
   expand_doit(fd, mainvar, sce->camera);
@@ -11218,7 +11216,7 @@ static void expand_scene(FileData *fd, Main *mainvar, Scene *sce)
     }
   }
 
-  for (ViewLayer *view_layer = sce->view_layers.first; view_layer; view_layer = view_layer->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &sce->view_layers) {
     expand_idprops(fd, mainvar, view_layer->id_properties);
 
     for (module = view_layer->freestyle_config.modules.first; module; module = module->next) {
@@ -11274,7 +11272,7 @@ static void expand_scene(FileData *fd, Main *mainvar, Scene *sce)
     expand_doit(fd, mainvar, sce->rigidbody_world->constraints);
   }
 
-  for (TimeMarker *marker = sce->markers.first; marker; marker = marker->next) {
+  LISTBASE_FOREACH (TimeMarker *, marker, &sce->markers) {
     if (marker->camera) {
       expand_doit(fd, mainvar, marker->camera);
     }
@@ -11297,7 +11295,7 @@ static void expand_camera(FileData *fd, Main *mainvar, Camera *ca)
 {
   expand_doit(fd, mainvar, ca->ipo);  // XXX deprecated - old animation system
 
-  for (CameraBGImage *bgpic = ca->bg_images.first; bgpic; bgpic = bgpic->next) {
+  LISTBASE_FOREACH (CameraBGImage *, bgpic, &ca->bg_images) {
     if (bgpic->source == CAM_BGIMG_SOURCE_IMAGE) {
       expand_doit(fd, mainvar, bgpic->ima);
     }
@@ -11403,7 +11401,7 @@ static void expand_workspace(FileData *fd, Main *mainvar, WorkSpace *workspace)
 {
   ListBase *layouts = BKE_workspace_layouts_get(workspace);
 
-  for (WorkSpaceLayout *layout = layouts->first; layout; layout = layout->next) {
+  LISTBASE_FOREACH (WorkSpaceLayout *, layout, layouts) {
     expand_doit(fd, mainvar, BKE_workspace_layout_screen_get(layout));
   }
 }
@@ -12145,7 +12143,7 @@ static int has_linked_ids_to_read(Main *mainvar)
   int a = set_listbasepointers(mainvar, lbarray);
 
   while (a--) {
-    for (ID *id = lbarray[a]->first; id; id = id->next) {
+    LISTBASE_FOREACH (ID *, id, lbarray[a]) {
       if ((id->tag & LIB_TAG_ID_LINK_PLACEHOLDER) && !(id->flag & LIB_INDIRECT_WEAK_LINK)) {
         return true;
       }
diff --git a/source/blender/blenloader/intern/undofile.c b/source/blender/blenloader/intern/undofile.c
index 69c4ba2b1f2..d8780409e93 100644
--- a/source/blender/blenloader/intern/undofile.c
+++ b/source/blender/blenloader/intern/undofile.c
@@ -95,7 +95,7 @@ void BLO_memfile_merge(MemFile *first, MemFile *second)
 /* Clear is_identical_future before adding next memfile. */
 void BLO_memfile_clear_future(MemFile *memfile)
 {
-  for (MemFileChunk *chunk = memfile->chunks.first; chunk; chunk = chunk->next) {
+  LISTBASE_FOREACH (MemFileChunk *, chunk, &memfile->chunks) {
     chunk->is_identical_future = false;
   }
 }
diff --git a/source/blender/blenloader/intern/versioning_270.c b/source/blender/blenloader/intern/versioning_270.c
index f1f7b4cf353..98d2acbd938 100644
--- a/source/blender/blenloader/intern/versioning_270.c
+++ b/source/blender/blenloader/intern/versioning_270.c
@@ -258,7 +258,7 @@ static void do_version_action_editor_properties_region(ListBase *regionbase)
 
 static void do_version_bones_super_bbone(ListBase *lb)
 {
-  for (Bone *bone = lb->first; bone; bone = bone->next) {
+  LISTBASE_FOREACH (Bone *, bone, lb) {
     bone->scale_in_x = bone->scale_in_y = 1.0f;
     bone->scale_out_x = bone->scale_out_y = 1.0f;
 
@@ -343,7 +343,7 @@ static void do_versions_compositor_render_passes_storage(bNode *node)
 
 static void do_versions_compositor_render_passes(bNodeTree *ntree)
 {
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == CMP_NODE_R_LAYERS) {
       /* First we make sure existing sockets have proper names.
        * This is important because otherwise verification will
@@ -392,7 +392,7 @@ static void do_version_bbone_easing_fcurve_fix(ID *UNUSED(id),
 
   /* Driver -> Driver Vars (for bbone_in/out) */
   if (fcu->driver) {
-    for (DriverVar *dvar = fcu->driver->variables.first; dvar; dvar = dvar->next) {
+    LISTBASE_FOREACH (DriverVar *, dvar, &fcu->driver->variables) {
       DRIVER_TARGETS_LOOPER_BEGIN (dvar) {
         if (dtar->rna_path) {
           dtar->rna_path = replace_bbone_easing_rnapath(dtar->rna_path);
@@ -404,7 +404,7 @@ static void do_version_bbone_easing_fcurve_fix(ID *UNUSED(id),
 
   /* FModifiers -> Stepped (for frame_start/end) */
   if (fcu->modifiers.first) {
-    for (FModifier *fcm = fcu->modifiers.first; fcm; fcm = fcm->next) {
+    LISTBASE_FOREACH (FModifier *, fcm, &fcu->modifiers) {
       if (fcm->type == FMODIFIER_TYPE_STEPPED) {
         FMod_Stepped *data = fcm->data;
 
@@ -1153,7 +1153,7 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *bmain)
      * otherwise they could collide with any new persistent flag we may add in the future. */
     a = set_listbasepointers(bmain, lbarray);
     while (a--) {
-      for (ID *id = lbarray[a]->first; id; id = id->next) {
+      LISTBASE_FOREACH (ID *, id, lbarray[a]) {
         id->flag &= LIB_FAKEUSER;
       }
     }
@@ -1177,15 +1177,15 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
 
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
                                                                  &sl->regionbase;
           /* Bug: Was possible to add preview region to sequencer view by using AZones. */
           if (sl->spacetype == SPACE_SEQ) {
             SpaceSeq *sseq = (SpaceSeq *)sl;
             if (sseq->view == SEQ_VIEW_SEQUENCE) {
-              for (ARegion *region = regionbase->first; region; region = region->next) {
+              LISTBASE_FOREACH (ARegion *, region, regionbase) {
                 /* remove preview region for sequencer-only view! */
                 if (region->regiontype == RGN_TYPE_PREVIEW) {
                   region->flag |= RGN_FLAG_HIDDEN;
@@ -1197,7 +1197,7 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *bmain)
           }
           /* Remove old deprecated region from filebrowsers */
           else if (sl->spacetype == SPACE_FILE) {
-            for (ARegion *region = regionbase->first; region; region = region->next) {
+            LISTBASE_FOREACH (ARegion *, region, regionbase) {
               if (region->regiontype == RGN_TYPE_CHANNELS) {
                 /* Free old deprecated 'channel' region... */
                 BKE_area_region_free(NULL, region);
@@ -1245,9 +1245,9 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     /* Adding "Properties" region to DopeSheet */
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
         /* handle pushed-back space data first */
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_ACTION) {
             SpaceAction *saction = (SpaceAction *)sl;
             do_version_action_editor_properties_region(&saction->regionbase);
@@ -1271,7 +1271,7 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *bmain)
     if (!DNA_struct_elem_find(fd->filesdna, "bPoseChannel", "float", "scaleIn")) {
       for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
         if (ob->pose) {
-          for (bPoseChannel *pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
+          LISTBASE_FOREACH (bPoseChannel *, pchan, &ob->pose->chanbase) {
             /* see do_version_bones_super_bbone()... */
             pchan->scale_in_x = pchan->scale_in_y = 1.0f;
             pchan->scale_out_x = pchan->scale_out_y = 1.0f;
@@ -1561,8 +1561,8 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *bmain)
   if (!MAIN_VERSION_ATLEAST(bmain, 278, 5)) {
     /* Mask primitive adding code was not initializing correctly id_type of its points' parent. */
     for (Mask *mask = bmain->masks.first; mask; mask = mask->id.next) {
-      for (MaskLayer *mlayer = mask->masklayers.first; mlayer; mlayer = mlayer->next) {
-        for (MaskSpline *mspline = mlayer->splines.first; mspline; mspline = mspline->next) {
+      LISTBASE_FOREACH (MaskLayer *, mlayer, &mask->masklayers) {
+        LISTBASE_FOREACH (MaskSpline *, mspline, &mlayer->splines) {
           int i = 0;
           for (MaskSplinePoint *mspoint = mspline->points; i < mspline->tot_point;
                mspoint++, i++) {
@@ -1579,7 +1579,7 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *bmain)
       FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
         if (ntree->type == NTREE_COMPOSIT) {
           ntreeSetTypes(NULL, ntree);
-          for (bNode *node = ntree->nodes.first; node; node = node->next) {
+          LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
             if (node->type == CMP_NODE_GLARE) {
               NodeGlare *ndg = node->storage;
               switch (ndg->type) {
@@ -1601,7 +1601,7 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     if (!DNA_struct_elem_find(fd->filesdna, "SurfaceDeformModifierData", "float", "mat[4][4]")) {
       for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-        for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
           if (md->type == eModifierType_SurfaceDeform) {
             SurfaceDeformModifierData *smd = (SurfaceDeformModifierData *)md;
             unit_m4(smd->mat);
@@ -1652,7 +1652,7 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *bmain)
   if (!MAIN_VERSION_ATLEAST(bmain, 279, 4)) {
     /* Fix for invalid state of screen due to bug in older versions. */
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
         if (area->full && screen->state == SCREENNORMAL) {
           area->full = NULL;
         }
@@ -1683,7 +1683,7 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *bmain)
      * Must set previous defaults. */
     if (!DNA_struct_elem_find(fd->filesdna, "SimpleDeformModifierData", "char", "deform_axis")) {
       for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-        for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
           if (md->type == eModifierType_SimpleDeform) {
             SimpleDeformModifierData *smd = (SimpleDeformModifierData *)md;
             smd->deform_axis = 2;
@@ -1712,7 +1712,7 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *bmain)
     if (!DNA_struct_elem_find(
             fd->filesdna, "ParticleInstanceModifierData", "float", "particle_amount")) {
       for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-        for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
           if (md->type == eModifierType_ParticleInstance) {
             ParticleInstanceModifierData *pimd = (ParticleInstanceModifierData *)md;
             pimd->space = eParticleInstanceSpace_World;
@@ -1731,7 +1731,7 @@ void do_versions_after_linking_270(Main *bmain)
     FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
       if (ntree->type == NTREE_COMPOSIT) {
         ntreeSetTypes(NULL, ntree);
-        for (bNode *node = ntree->nodes.first; node; node = node->next) {
+        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
           if (node->type == CMP_NODE_HUE_SAT) {
             do_version_hue_sat_node(ntree, node);
           }
diff --git a/source/blender/blenloader/intern/versioning_280.c b/source/blender/blenloader/intern/versioning_280.c
index 3821b2ad48a..ff87756f436 100644
--- a/source/blender/blenloader/intern/versioning_280.c
+++ b/source/blender/blenloader/intern/versioning_280.c
@@ -116,7 +116,7 @@ static bScreen *screen_parent_find(const bScreen *screen)
   /* Can avoid lookup if screen state isn't maximized/full
    * (parent and child store the same state). */
   if (ELEM(screen->state, SCREENMAXIMIZED, SCREENFULL)) {
-    for (const ScrArea *area = screen->areabase.first; area; area = area->next) {
+    LISTBASE_FOREACH (const ScrArea *, area, &screen->areabase) {
       if (area->full && area->full != screen) {
         BLI_assert(area->full->state == screen->state);
         return area->full;
@@ -159,7 +159,7 @@ static void do_version_area_change_space_to_space_action(ScrArea *area, const Sc
   ARegion *region_channels;
 
   /* Properly free current regions */
-  for (ARegion *region = area->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
     BKE_area_region_free(area->type, region);
   }
   BLI_freelistN(&area->regionbase);
@@ -199,7 +199,7 @@ static void do_version_workspaces_after_lib_link(Main *bmain)
   do_version_workspaces_create_from_screens(bmain);
 
   for (wmWindowManager *wm = bmain->wm.first; wm; wm = wm->id.next) {
-    for (wmWindow *win = wm->windows.first; win; win = win->next) {
+    LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
       bScreen *screen_parent = screen_parent_find(win->screen);
       bScreen *screen = screen_parent ? screen_parent : win->screen;
 
@@ -278,7 +278,7 @@ static void do_version_layer_collection_pre(ViewLayer *view_layer,
                                             GSet *selectable_set)
 {
   /* Convert from deprecated DISABLED to new layer collection and collection flags */
-  for (LayerCollection *lc = lb->first; lc; lc = lc->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc, lb) {
     if (lc->scene_collection) {
       if (!(lc->flag & COLLECTION_DEPRECATED_DISABLED)) {
         BLI_gset_insert(enabled_set, lc->scene_collection);
@@ -300,7 +300,7 @@ static void do_version_layer_collection_post(ViewLayer *view_layer,
                                              GHash *collection_map)
 {
   /* Apply layer collection exclude flags. */
-  for (LayerCollection *lc = lb->first; lc; lc = lc->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc, lb) {
     if (!(lc->collection->flag & COLLECTION_IS_MASTER)) {
       SceneCollection *sc = BLI_ghash_lookup(collection_map, lc->collection);
       const bool enabled = (sc && BLI_gset_haskey(enabled_set, sc));
@@ -334,7 +334,7 @@ static void do_version_scene_collection_convert(
     nsc = nsc_next;
   }
 
-  for (LinkData *link = sc->objects.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &sc->objects) {
     Object *ob = link->data;
     if (ob) {
       BKE_collection_object_add(bmain, collection, ob);
@@ -422,7 +422,7 @@ static void do_version_layers_to_collections(Main *bmain, Scene *scene)
   Collection *collections[20] = {NULL};
 
   for (int layer = 0; layer < 20; layer++) {
-    for (Base *base = scene->base.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &scene->base) {
       if (base->lay & (1 << layer)) {
         /* Create collections when needed only. */
         if (collections[layer] == NULL) {
@@ -461,7 +461,7 @@ static void do_version_layers_to_collections(Main *bmain, Scene *scene)
   bool have_override = false;
   const bool need_default_renderlayer = scene->r.layers.first == NULL;
 
-  for (SceneRenderLayer *srl = scene->r.layers.first; srl; srl = srl->next) {
+  LISTBASE_FOREACH (SceneRenderLayer *, srl, &scene->r.layers) {
     ViewLayer *view_layer = BKE_view_layer_add(scene, srl->name, NULL, VIEWLAYER_ADD_NEW);
 
     if (srl->layflag & SCE_LAY_DISABLE) {
@@ -493,7 +493,7 @@ static void do_version_layers_to_collections(Main *bmain, Scene *scene)
           /* Disable excluded layer. */
           have_override = true;
           lc->flag |= LAYER_COLLECTION_EXCLUDE;
-          for (LayerCollection *nlc = lc->layer_collections.first; nlc; nlc = nlc->next) {
+          LISTBASE_FOREACH (LayerCollection *, nlc, &lc->layer_collections) {
             nlc->flag |= LAYER_COLLECTION_EXCLUDE;
           }
         }
@@ -516,7 +516,7 @@ static void do_version_layers_to_collections(Main *bmain, Scene *scene)
       view_layer->basact = BKE_view_layer_base_find(view_layer, scene->basact->object);
     }
 
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       if ((base->flag & BASE_SELECTABLE) && (base->object->flag & SELECT)) {
         base->flag |= BASE_SELECTED;
       }
@@ -542,7 +542,7 @@ static void do_version_layers_to_collections(Main *bmain, Scene *scene)
     }
 
     /* convert selected bases */
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       if ((base->flag & BASE_SELECTABLE) && (base->object->flag & SELECT)) {
         base->flag |= BASE_SELECTED;
       }
@@ -553,7 +553,7 @@ static void do_version_layers_to_collections(Main *bmain, Scene *scene)
   }
 
   /* remove bases once and for all */
-  for (Base *base = scene->base.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &scene->base) {
     id_us_min(&base->object->id);
   }
 
@@ -577,8 +577,8 @@ static void do_version_collection_propagate_lib_to_children(Collection *collecti
 /** convert old annotations colors */
 static void do_versions_fix_annotations(bGPdata *gpd)
 {
-  for (const bGPDpalette *palette = gpd->palettes.first; palette; palette = palette->next) {
-    for (bGPDpalettecolor *palcolor = palette->colors.first; palcolor; palcolor = palcolor->next) {
+  LISTBASE_FOREACH (const bGPDpalette *, palette, &gpd->palettes) {
+    LISTBASE_FOREACH (bGPDpalettecolor *, palcolor, &palette->colors) {
       /* fix layers */
       LISTBASE_FOREACH (bGPDlayer *, gpl, &gpd->layers) {
         /* unlock/unhide layer */
@@ -620,7 +620,7 @@ static void do_versions_remove_regions_by_type(ListBase *regionbase, int regiont
 
 static ARegion *do_versions_find_region_or_null(ListBase *regionbase, int regiontype)
 {
-  for (ARegion *region = regionbase->first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, regionbase) {
     if (region->regiontype == regiontype) {
       return region;
     }
@@ -649,8 +649,8 @@ static void do_versions_area_ensure_tool_region(Main *bmain,
                                                 const short region_flag)
 {
   for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-      for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+      LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
         if (sl->spacetype == space_type) {
           ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
                                                                  &sl->regionbase;
@@ -670,7 +670,7 @@ static void do_versions_area_ensure_tool_region(Main *bmain,
 
 static void do_version_bones_split_bbone_scale(ListBase *lb)
 {
-  for (Bone *bone = lb->first; bone; bone = bone->next) {
+  LISTBASE_FOREACH (Bone *, bone, lb) {
     bone->scale_in_y = bone->scale_in_x;
     bone->scale_out_y = bone->scale_out_x;
 
@@ -680,7 +680,7 @@ static void do_version_bones_split_bbone_scale(ListBase *lb)
 
 static void do_version_bones_inherit_scale(ListBase *lb)
 {
-  for (Bone *bone = lb->first; bone; bone = bone->next) {
+  LISTBASE_FOREACH (Bone *, bone, lb) {
     if (bone->flag & BONE_NO_SCALE) {
       bone->inherit_scale_mode = BONE_INHERIT_SCALE_NONE_LEGACY;
       bone->flag &= ~BONE_NO_SCALE;
@@ -750,7 +750,7 @@ static void do_version_bbone_scale_animdata_cb(ID *UNUSED(id),
 
 static void do_version_constraints_maintain_volume_mode_uniform(ListBase *lb)
 {
-  for (bConstraint *con = lb->first; con; con = con->next) {
+  LISTBASE_FOREACH (bConstraint *, con, lb) {
     if (con->type == CONSTRAINT_TYPE_SAMEVOL) {
       bSameVolumeConstraint *data = (bSameVolumeConstraint *)con->data;
       data->mode = SAMEVOL_UNIFORM;
@@ -760,7 +760,7 @@ static void do_version_constraints_maintain_volume_mode_uniform(ListBase *lb)
 
 static void do_version_constraints_copy_scale_power(ListBase *lb)
 {
-  for (bConstraint *con = lb->first; con; con = con->next) {
+  LISTBASE_FOREACH (bConstraint *, con, lb) {
     if (con->type == CONSTRAINT_TYPE_SIZELIKE) {
       bSizeLikeConstraint *data = (bSizeLikeConstraint *)con->data;
       data->power = 1.0f;
@@ -770,7 +770,7 @@ static void do_version_constraints_copy_scale_power(ListBase *lb)
 
 static void do_version_constraints_copy_rotation_mix_mode(ListBase *lb)
 {
-  for (bConstraint *con = lb->first; con; con = con->next) {
+  LISTBASE_FOREACH (bConstraint *, con, lb) {
     if (con->type == CONSTRAINT_TYPE_ROTLIKE) {
       bRotateLikeConstraint *data = (bRotateLikeConstraint *)con->data;
       data->mix_mode = (data->flag & ROTLIKE_OFFSET) ? ROTLIKE_MIX_OFFSET : ROTLIKE_MIX_REPLACE;
@@ -1244,8 +1244,8 @@ void do_versions_after_linking_280(Main *bmain, ReportList *UNUSED(reports))
        * so same layer as BKE_view_layer_default_view would return */
       ViewLayer *layer = screen->scene->view_layers.first;
 
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *space = area->spacedata.first; space; space = space->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, space, &area->spacedata) {
           if (space->spacetype == SPACE_OUTLINER) {
             SpaceOutliner *soutliner = (SpaceOutliner *)space;
 
@@ -1274,8 +1274,8 @@ void do_versions_after_linking_280(Main *bmain, ReportList *UNUSED(reports))
 
   if (!MAIN_VERSION_ATLEAST(bmain, 280, 0)) {
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *space = area->spacedata.first; space; space = space->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, space, &area->spacedata) {
           if (space->spacetype == SPACE_IMAGE) {
             SpaceImage *sima = (SpaceImage *)space;
             if ((sima) && (sima->gpd)) {
@@ -1305,7 +1305,7 @@ void do_versions_after_linking_280(Main *bmain, ReportList *UNUSED(reports))
     /* Cleanup any remaining SceneRenderLayer data for files that were created
      * with Blender 2.8 before the SceneRenderLayer > RenderLayer refactor. */
     for (Scene *scene = bmain->scenes.first; scene; scene = scene->id.next) {
-      for (SceneRenderLayer *srl = scene->r.layers.first; srl; srl = srl->next) {
+      LISTBASE_FOREACH (SceneRenderLayer *, srl, &scene->r.layers) {
         if (srl->prop) {
           IDP_FreeProperty(srl->prop);
         }
@@ -1320,7 +1320,7 @@ void do_versions_after_linking_280(Main *bmain, ReportList *UNUSED(reports))
      * no longer be visible.
      * Here we correct this by setting a default draw size for those files. */
     for (Object *object = bmain->objects.first; object; object = object->id.next) {
-      for (ParticleSystem *psys = object->particlesystem.first; psys; psys = psys->next) {
+      LISTBASE_FOREACH (ParticleSystem *, psys, &object->particlesystem) {
         if (psys->part->draw_size == 0.0f) {
           psys->part->draw_size = 0.1f;
         }
@@ -1332,7 +1332,7 @@ void do_versions_after_linking_280(Main *bmain, ReportList *UNUSED(reports))
     for (Object *object = bmain->objects.first; object; object = object->id.next) {
       if (object->particlesystem.first) {
         object->duplicator_visibility_flag = OB_DUPLI_FLAG_VIEWPORT;
-        for (ParticleSystem *psys = object->particlesystem.first; psys; psys = psys->next) {
+        LISTBASE_FOREACH (ParticleSystem *, psys, &object->particlesystem) {
           if (psys->part->draw & PART_DRAW_EMITTER) {
             object->duplicator_visibility_flag |= OB_DUPLI_FLAG_RENDER;
             break;
@@ -1363,9 +1363,9 @@ void do_versions_after_linking_280(Main *bmain, ReportList *UNUSED(reports))
        * screens using the active scene of the window they're displayed in.
        * Next, update remaining screens using first scene in main listbase. */
 
-      for (wmWindow *win = wm->windows.first; win; win = win->next) {
+      LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
         const bScreen *screen = BKE_workspace_active_screen_get(win->workspace_hook);
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
           if (ELEM(area->butspacetype, SPACE_TIME, SPACE_LOGIC)) {
             do_version_area_change_space_to_space_action(area, win->scene);
 
@@ -1377,7 +1377,7 @@ void do_versions_after_linking_280(Main *bmain, ReportList *UNUSED(reports))
     }
     if (scene != NULL) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
           if (ELEM(area->butspacetype, SPACE_TIME, SPACE_LOGIC)) {
             /* Areas that were already handled won't be handled again */
             do_version_area_change_space_to_space_action(area, scene);
@@ -1414,7 +1414,7 @@ void do_versions_after_linking_280(Main *bmain, ReportList *UNUSED(reports))
 
       int new_count = BKE_keyblock_curve_element_count(&cu->nurb);
 
-      for (KeyBlock *block = cu->key->block.first; block; block = block->next) {
+      LISTBASE_FOREACH (KeyBlock *, block, &cu->key->block) {
         int old_count = block->totelem;
         void *old_data = block->data;
 
@@ -1428,7 +1428,7 @@ void do_versions_after_linking_280(Main *bmain, ReportList *UNUSED(reports))
         float *oldptr = old_data;
         float(*newptr)[3] = block->data;
 
-        for (Nurb *nu = cu->nurb.first; nu; nu = nu->next) {
+        LISTBASE_FOREACH (Nurb *, nu, &cu->nurb) {
           if (nu->bezt) {
             BezTriple *bezt = nu->bezt;
 
@@ -1481,7 +1481,7 @@ void do_versions_after_linking_280(Main *bmain, ReportList *UNUSED(reports))
       if (ob->pose && arm && arm->id.lib == ob->id.lib) {
         bool rebuild = false;
 
-        for (bPoseChannel *pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
+        LISTBASE_FOREACH (bPoseChannel *, pchan, &ob->pose->chanbase) {
           /* If the 2.7 flag is enabled, processing is needed. */
           if (pchan->bone && (pchan->bboneflag & PCHAN_BBONE_CUSTOM_HANDLES)) {
             /* If the settings in the Bone are not set, copy. */
@@ -1784,7 +1784,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
       if (ntree->type == NTREE_SHADER) {
-        for (bNode *node = ntree->nodes.first; node; node = node->next) {
+        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
           if (node->type == 194 /* SH_NODE_EEVEE_METALLIC */ &&
               STREQ(node->idname, "ShaderNodeOutputMetallic")) {
             BLI_strncpy(node->idname, "ShaderNodeEeveeMetallic", sizeof(node->idname));
@@ -1913,8 +1913,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* init grease pencil grids and paper */
     if (!DNA_struct_elem_find(fd->filesdna, "View3DOverlay", "float", "gpencil_paper_color[3]")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->overlay.gpencil_paper_opacity = 0.5f;
@@ -1974,8 +1974,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
 
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_VIEW3D) {
             View3D *v3d = (View3D *)sl;
             v3d->shading.light = V3D_LIGHTING_STUDIO;
@@ -2027,7 +2027,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
       /* Calculate window width/height from screen vertices */
       int win_width = 0, win_height = 0;
-      for (ScrVert *vert = screen->vertbase.first; vert; vert = vert->next) {
+      LISTBASE_FOREACH (ScrVert *, vert, &screen->vertbase) {
         win_width = MAX2(win_width, vert->vec.x);
         win_height = MAX2(win_height, vert->vec.y);
       }
@@ -2067,8 +2067,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
   if (!MAIN_VERSION_ATLEAST(bmain, 280, 12)) {
     /* Remove tool property regions. */
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (ELEM(sl->spacetype, SPACE_VIEW3D, SPACE_CLIP)) {
             ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
                                                                    &sl->regionbase;
@@ -2097,8 +2097,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     /* Initialize new view3D options. */
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_VIEW3D) {
             View3D *v3d = (View3D *)sl;
             v3d->shading.light = V3D_LIGHTING_STUDIO;
@@ -2322,8 +2322,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
       }
 
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_OUTLINER) {
               SpaceOutliner *soops = (SpaceOutliner *)sl;
               soops->filter_id_type = ID_GR;
@@ -2404,8 +2404,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
       }
 
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->shading.flag |= V3D_SHADING_SPECULAR_HIGHLIGHT;
@@ -2417,8 +2417,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     if (!DNA_struct_elem_find(fd->filesdna, "View3DShading", "float", "xray_alpha")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->shading.xray_alpha = 0.5f;
@@ -2432,8 +2432,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
       /* when loading the internal file is loaded before the matcaps */
       if (default_matcap) {
         for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-          for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-            for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+          LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+            LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
               if (sl->spacetype == SPACE_VIEW3D) {
                 View3D *v3d = (View3D *)sl;
                 BLI_strncpy(v3d->shading.matcap, default_matcap->name, FILE_MAXFILE);
@@ -2445,8 +2445,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
     if (!DNA_struct_elem_find(fd->filesdna, "View3DOverlay", "float", "wireframe_threshold")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->overlay.wireframe_threshold = 0.5f;
@@ -2457,8 +2457,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
     if (!DNA_struct_elem_find(fd->filesdna, "View3DShading", "float", "cavity_valley_factor")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->shading.cavity_valley_factor = 1.0f;
@@ -2470,8 +2470,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
     if (!DNA_struct_elem_find(fd->filesdna, "View3DOverlay", "float", "xray_alpha_bone")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->overlay.xray_alpha_bone = 0.5f;
@@ -2496,8 +2496,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
     if (!DNA_struct_elem_find(fd->filesdna, "SpaceAction", "char", "mode_prev")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_ACTION) {
               SpaceAction *saction = (SpaceAction *)sl;
               /* "Dopesheet" should be default here,
@@ -2512,8 +2512,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
 
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_VIEW3D) {
             View3D *v3d = (View3D *)sl;
             if (v3d->drawtype == OB_TEXTURE) {
@@ -2537,8 +2537,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     if (!DNA_struct_elem_find(
             fd->filesdna, "View3DOverlay", "float", "texture_paint_mode_opacity")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               enum {
                 V3D_SHOW_MODE_SHADE_OVERRIDE = (1 << 15),
@@ -2556,8 +2556,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     if (!DNA_struct_elem_find(fd->filesdna, "View3DShading", "char", "background_type")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               copy_v3_fl(v3d->shading.background_color, 0.05f);
@@ -2621,8 +2621,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     if (!DNA_struct_elem_find(fd->filesdna, "View3DShading", "short", "type")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               if (v3d->drawtype == OB_RENDER) {
@@ -2644,8 +2644,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* initialize grease pencil view data */
     if (!DNA_struct_elem_find(fd->filesdna, "SpaceView3D", "float", "vertex_opacity")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->vertex_opacity = 1.0f;
@@ -2676,8 +2676,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
     if (!DNA_struct_elem_find(fd->filesdna, "View3DOverlay", "float", "gpencil_paper_opacity")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->overlay.gpencil_paper_opacity = 0.5f;
@@ -2688,8 +2688,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
     if (!DNA_struct_elem_find(fd->filesdna, "View3DOverlay", "float", "gpencil_grid_opacity")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->overlay.gpencil_grid_opacity = 0.5f;
@@ -2713,7 +2713,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* Versioning code for Subsurf modifier. */
     if (!DNA_struct_elem_find(fd->filesdna, "SubsurfModifier", "short", "uv_smooth")) {
       for (Object *object = bmain->objects.first; object != NULL; object = object->id.next) {
-        for (ModifierData *md = object->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &object->modifiers) {
           if (md->type == eModifierType_Subsurf) {
             SubsurfModifierData *smd = (SubsurfModifierData *)md;
             if (smd->flags & eSubsurfModifierFlag_SubsurfUv_DEPRECATED) {
@@ -2729,7 +2729,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     if (!DNA_struct_elem_find(fd->filesdna, "SubsurfModifier", "short", "quality")) {
       for (Object *object = bmain->objects.first; object != NULL; object = object->id.next) {
-        for (ModifierData *md = object->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &object->modifiers) {
           if (md->type == eModifierType_Subsurf) {
             SubsurfModifierData *smd = (SubsurfModifierData *)md;
             smd->quality = min_ii(smd->renderLevels, 3);
@@ -2740,7 +2740,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* Versioning code for Multires modifier. */
     if (!DNA_struct_elem_find(fd->filesdna, "MultiresModifier", "short", "quality")) {
       for (Object *object = bmain->objects.first; object != NULL; object = object->id.next) {
-        for (ModifierData *md = object->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &object->modifiers) {
           if (md->type == eModifierType_Multires) {
             MultiresModifierData *mmd = (MultiresModifierData *)md;
             mmd->quality = 3;
@@ -2757,7 +2757,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     if (!DNA_struct_elem_find(fd->filesdna, "ClothSimSettings", "short", "bending_model")) {
       for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-        for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
           ClothModifierData *clmd = NULL;
           if (md->type == eModifierType_Cloth) {
             clmd = (ClothModifierData *)md;
@@ -2797,7 +2797,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
 
     for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-      for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
         if (md->type == eModifierType_Cloth) {
           ClothModifierData *clmd = (ClothModifierData *)md;
 
@@ -2826,8 +2826,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
   if (!MAIN_VERSION_ATLEAST(bmain, 280, 24)) {
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_VIEW3D) {
             View3D *v3d = (View3D *)sl;
             v3d->overlay.edit_flag |= V3D_OVERLAY_EDIT_FACES | V3D_OVERLAY_EDIT_SEAMS |
@@ -2842,7 +2842,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     if (!DNA_struct_elem_find(fd->filesdna, "ShrinkwrapModifierData", "char", "shrinkMode")) {
       for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-        for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
           if (md->type == eModifierType_Shrinkwrap) {
             ShrinkwrapModifierData *smd = (ShrinkwrapModifierData *)md;
             if (smd->shrinkOpts & MOD_SHRINKWRAP_KEEP_ABOVE_SURFACE) {
@@ -2860,7 +2860,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
           ob->pd->pdef_cfrict = 5.0f;
         }
 
-        for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
           if (md->type == eModifierType_Cloth) {
             ClothModifierData *clmd = (ClothModifierData *)md;
 
@@ -2872,8 +2872,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     if (!DNA_struct_elem_find(fd->filesdna, "View3DShading", "float", "xray_alpha_wire")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->shading.flag |= V3D_SHADING_XRAY_WIREFRAME;
@@ -2910,8 +2910,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
   if (!MAIN_VERSION_ATLEAST(bmain, 280, 29)) {
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_VIEW3D) {
             enum { V3D_OCCLUDE_WIRE = (1 << 14) };
             View3D *v3d = (View3D *)sl;
@@ -2933,8 +2933,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
      */
     if (!MAIN_VERSION_ATLEAST(bmain, 283, 1)) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
                                                                    &sl->regionbase;
             ARegion *region_header = do_versions_find_region_or_null(regionbase, RGN_TYPE_HEADER);
@@ -2957,8 +2957,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
 
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_PROPERTIES) {
             ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
                                                                    &sl->regionbase;
@@ -2985,8 +2985,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* grease pencil fade layer opacity */
     if (!DNA_struct_elem_find(fd->filesdna, "View3DOverlay", "float", "gpencil_fade_layer")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->overlay.gpencil_fade_layer = 0.5f;
@@ -3190,8 +3190,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
   if (!MAIN_VERSION_ATLEAST(bmain, 280, 34)) {
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *slink = area->spacedata.first; slink; slink = slink->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, slink, &area->spacedata) {
           if (slink->spacetype == SPACE_USERPREF) {
             ARegion *navigation_region = BKE_spacedata_find_region_type(
                 slink, area, RGN_TYPE_NAV_BAR);
@@ -3219,8 +3219,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
   if (!MAIN_VERSION_ATLEAST(bmain, 280, 36)) {
     if (!DNA_struct_elem_find(fd->filesdna, "View3DShading", "float", "curvature_ridge_factor")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->shading.curvature_ridge_factor = 1.0f;
@@ -3251,8 +3251,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* Move studio_light selection to lookdev_light. */
     if (!DNA_struct_elem_find(fd->filesdna, "View3DShading", "char", "lookdev_light[256]")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               memcpy(v3d->shading.lookdev_light, v3d->shading.studio_light, sizeof(char) * 256);
@@ -3305,8 +3305,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
 
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           switch (sl->spacetype) {
             case SPACE_IMAGE: {
               SpaceImage *sima = (SpaceImage *)sl;
@@ -3422,8 +3422,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
 
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           switch (sl->spacetype) {
             case SPACE_VIEW3D: {
               enum { V3D_BACKFACE_CULLING = (1 << 10) };
@@ -3465,8 +3465,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
 
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_USERPREF) {
             ARegion *execute_region = BKE_spacedata_find_region_type(sl, area, RGN_TYPE_EXECUTE);
 
@@ -3524,8 +3524,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* Add wireframe color. */
     if (!DNA_struct_elem_find(fd->filesdna, "View3DShading", "char", "wire_color_type")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->shading.wire_color_type = V3D_SHADING_SINGLE_COLOR;
@@ -3627,7 +3627,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     if (!DNA_struct_elem_find(fd->filesdna, "TriangulateModifierData", "int", "min_vertices")) {
       for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-        for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
           if (md->type == eModifierType_Triangulate) {
             TriangulateModifierData *smd = (TriangulateModifierData *)md;
             smd->min_vertices = 4;
@@ -3638,7 +3638,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
       if (ntree->type == NTREE_SHADER) {
-        for (bNode *node = ntree->nodes.first; node; node = node->next) {
+        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
           /* Fix missing version patching from earlier changes. */
           if (STREQ(node->idname, "ShaderNodeOutputLamp")) {
             STRNCPY(node->idname, "ShaderNodeOutputLight");
@@ -3677,7 +3677,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
   if (!MAIN_VERSION_ATLEAST(bmain, 280, 54)) {
     for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
       bool is_first_subdiv = true;
-      for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
         if (md->type == eModifierType_Subsurf) {
           SubsurfModifierData *smd = (SubsurfModifierData *)md;
           if (is_first_subdiv) {
@@ -3704,8 +3704,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
   if (!MAIN_VERSION_ATLEAST(bmain, 280, 55)) {
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_TEXT) {
             ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
                                                                    &sl->regionbase;
@@ -3727,8 +3727,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
   if (!MAIN_VERSION_ATLEAST(bmain, 280, 56)) {
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_VIEW3D) {
             View3D *v3d = (View3D *)sl;
             v3d->gizmo_show_armature = V3D_GIZMO_SHOW_ARMATURE_BBONE |
@@ -3745,8 +3745,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
   if (!MAIN_VERSION_ATLEAST(bmain, 280, 57)) {
     /* Enable Show Interpolation in dopesheet by default. */
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_ACTION) {
             SpaceAction *saction = (SpaceAction *)sl;
             if ((saction->flag & SACTION_SHOW_EXTREMES) == 0) {
@@ -3784,8 +3784,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     /* enable the axis aligned ortho grid by default */
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_VIEW3D) {
             View3D *v3d = (View3D *)sl;
             v3d->gridflag |= V3D_SHOW_ORTHO_GRID;
@@ -3798,8 +3798,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
   /* Keep un-versioned until we're finished adding space types. */
   {
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
                                                                  &sl->regionbase;
           /* All spaces that use tools must be eventually added. */
@@ -3829,8 +3829,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     if (!DNA_struct_elem_find(fd->filesdna, "bSplineIKConstraint", "short", "yScaleMode")) {
       for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
         if (ob->pose) {
-          for (bPoseChannel *pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
-            for (bConstraint *con = pchan->constraints.first; con; con = con->next) {
+          LISTBASE_FOREACH (bPoseChannel *, pchan, &ob->pose->chanbase) {
+            LISTBASE_FOREACH (bConstraint *, con, &pchan->constraints) {
               if (con->type == CONSTRAINT_TYPE_SPLINEIK) {
                 bSplineIKConstraint *data = (bSplineIKConstraint *)con->data;
                 if ((data->flag & CONSTRAINT_SPLINEIK_SCALE_LIMITED) == 0) {
@@ -3846,8 +3846,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     if (!DNA_struct_elem_find(
             fd->filesdna, "View3DOverlay", "float", "sculpt_mode_mask_opacity")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->overlay.sculpt_mode_mask_opacity = 0.75f;
@@ -3910,8 +3910,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
 
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (ELEM(sl->spacetype, SPACE_CLIP, SPACE_GRAPH, SPACE_SEQ)) {
             ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
                                                                    &sl->regionbase;
@@ -3936,8 +3936,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
 
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype != SPACE_OUTLINER) {
             continue;
           }
@@ -4047,7 +4047,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
   if (!MAIN_VERSION_ATLEAST(bmain, 281, 1)) {
     LISTBASE_FOREACH (Object *, ob, &bmain->objects) {
-      for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
         if (md->type == eModifierType_DataTransfer) {
           /* Now datatransfer's mix factor is multiplied with weights when any,
            * instead of being ignored,
@@ -4063,8 +4063,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
   if (!MAIN_VERSION_ATLEAST(bmain, 281, 3)) {
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_TEXT) {
             ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
                                                                    &sl->regionbase;
@@ -4118,8 +4118,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
   if (!MAIN_VERSION_ATLEAST(bmain, 281, 6)) {
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_VIEW3D) {
             View3D *v3d = (View3D *)sl;
             v3d->shading.flag |= V3D_SHADING_SCENE_LIGHTS_RENDER | V3D_SHADING_SCENE_WORLD_RENDER;
@@ -4140,8 +4140,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
   if (!MAIN_VERSION_ATLEAST(bmain, 281, 9)) {
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_FILE) {
             SpaceFile *sfile = (SpaceFile *)sl;
             ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
@@ -4197,8 +4197,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* Added studiolight intensity */
     if (!DNA_struct_elem_find(fd->filesdna, "View3DShading", "float", "studiolight_intensity")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->shading.studiolight_intensity = 1.0f;
@@ -4235,15 +4235,13 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
 
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           if (sl->spacetype == SPACE_VIEW3D) {
             View3D *v3d = (View3D *)sl;
 
-            for (ScrArea *area_other = screen->areabase.first; area_other;
-                 area_other = area_other->next) {
-              for (SpaceLink *sl_other = area_other->spacedata.first; sl_other;
-                   sl_other = sl_other->next) {
+            LISTBASE_FOREACH (ScrArea *, area_other, &screen->areabase) {
+              LISTBASE_FOREACH (SpaceLink *, sl_other, &area_other->spacedata) {
                 if (sl != sl_other && sl_other->spacetype == SPACE_VIEW3D) {
                   View3D *v3d_other = (View3D *)sl_other;
 
@@ -4293,7 +4291,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     do_version_curvemapping_walker(bmain, do_version_curvemapping_flag_extend_extrapolate);
 
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
         area->flag &= ~AREA_FLAG_UNUSED_6;
       }
     }
@@ -4311,7 +4309,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* Add custom curve profile to bevel modifier */
     if (!DNA_struct_elem_find(fd->filesdna, "BevelModifier", "CurveProfile", "custom_profile")) {
       for (Object *object = bmain->objects.first; object != NULL; object = object->id.next) {
-        for (ModifierData *md = object->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &object->modifiers) {
           if (md->type == eModifierType_Bevel) {
             BevelModifierData *bmd = (BevelModifierData *)md;
             if (!bmd->custom_profile) {
@@ -4339,7 +4337,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     /* Cloth pressure */
     for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-      for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
         if (md->type == eModifierType_Cloth) {
           ClothModifierData *clmd = (ClothModifierData *)md;
 
@@ -4364,8 +4362,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
       }
 
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->shading.render_pass = SCE_PASS_COMBINED;
@@ -4377,8 +4375,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     /* Make markers region visible by default. */
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           switch (sl->spacetype) {
             case SPACE_SEQ: {
               SpaceSeq *sseq = (SpaceSeq *)sl;
@@ -4413,7 +4411,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
 
     /* Cloth internal springs */
     for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-      for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
         if (md->type == eModifierType_Cloth) {
           ClothModifierData *clmd = (ClothModifierData *)md;
 
@@ -4439,8 +4437,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* UDIM Image Editor change. */
     if (!DNA_struct_elem_find(fd->filesdna, "SpaceImage", "int", "tile_grid_shape[2]")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_IMAGE) {
               SpaceImage *sima = (SpaceImage *)sl;
               sima->tile_grid_shape[0] = 1;
@@ -4502,7 +4500,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* Add 2D transform to UV Warp modifier. */
     if (!DNA_struct_elem_find(fd->filesdna, "UVWarpModifierData", "float", "scale[2]")) {
       for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-        for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
           if (md->type == eModifierType_UVWarp) {
             UVWarpModifierData *umd = (UVWarpModifierData *)md;
             copy_v2_fl(umd->scale, 1.0f);
@@ -4514,8 +4512,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* Add Lookdev blur property. */
     if (!DNA_struct_elem_find(fd->filesdna, "View3DShading", "float", "studiolight_blur")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->shading.studiolight_blur = 0.5f;
@@ -4788,8 +4786,8 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     if (!DNA_struct_elem_find(
             fd->filesdna, "View3DOverlay", "float", "sculpt_mode_face_sets_opacity")) {
       for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-          for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
             if (sl->spacetype == SPACE_VIEW3D) {
               View3D *v3d = (View3D *)sl;
               v3d->overlay.sculpt_mode_face_sets_opacity = 1.0f;
@@ -4819,7 +4817,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* Corrective smooth modifier scale*/
     if (!DNA_struct_elem_find(fd->filesdna, "CorrectiveSmoothModifierData", "float", "scale")) {
       for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-        for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
           if (md->type == eModifierType_CorrectiveSmooth) {
             CorrectiveSmoothModifierData *csmd = (CorrectiveSmoothModifierData *)md;
             csmd->scale = 1.0f;
@@ -4842,7 +4840,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
   if (!MAIN_VERSION_ATLEAST(bmain, 283, 11)) {
     if (!DNA_struct_elem_find(fd->filesdna, "OceanModifierData", "float", "fetch_jonswap")) {
       for (Object *object = bmain->objects.first; object != NULL; object = object->id.next) {
-        for (ModifierData *md = object->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &object->modifiers) {
           if (md->type == eModifierType_Ocean) {
             OceanModifierData *omd = (OceanModifierData *)md;
             omd->fetch_jonswap = 120.0f;
@@ -4870,7 +4868,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* Surface deform modifier strength*/
     if (!DNA_struct_elem_find(fd->filesdna, "SurfaceDeformModifierData", "float", "strength")) {
       for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-        for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
           if (md->type == eModifierType_SurfaceDeform) {
             SurfaceDeformModifierData *sdmd = (SurfaceDeformModifierData *)md;
             sdmd->strength = 1.0f;
@@ -4896,7 +4894,7 @@ void blo_do_versions_280(FileData *fd, Library *UNUSED(lib), Main *bmain)
     /* Remesh Modifier Voxel Mode. */
     if (!DNA_struct_elem_find(fd->filesdna, "RemeshModifierData", "float", "voxel_size")) {
       for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-        for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
           if (md->type == eModifierType_Remesh) {
             RemeshModifierData *rmd = (RemeshModifierData *)md;
             rmd->voxel_size = 0.1f;
diff --git a/source/blender/blenloader/intern/versioning_cycles.c b/source/blender/blenloader/intern/versioning_cycles.c
index 14a940b9297..ff3d4574561 100644
--- a/source/blender/blenloader/intern/versioning_cycles.c
+++ b/source/blender/blenloader/intern/versioning_cycles.c
@@ -173,7 +173,7 @@ static void square_roughness_node_insert(bNodeTree *ntree)
   bool need_update = false;
 
   /* Update default values */
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node_has_roughness(node)) {
       bNodeSocket *roughness_input = nodeFindSocket(node, SOCK_IN, "Roughness");
       float *roughness_value = cycles_node_socket_float_value(roughness_input);
@@ -256,7 +256,7 @@ static void ambient_occlusion_node_relink(bNodeTree *ntree)
   bool need_update = false;
 
   /* Set default values. */
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_AMBIENT_OCCLUSION) {
       node->custom1 = 1; /* samples */
       node->custom2 &= ~SHD_AO_LOCAL;
@@ -338,7 +338,7 @@ static void light_emission_node_to_energy(Light *light, float *energy, float col
   }
 
   bNode *emission_node = NULL;
-  for (bNodeLink *link = ntree->links.first; link; link = link->next) {
+  LISTBASE_FOREACH (bNodeLink *, link, &ntree->links) {
     if (link->tonode == output_node && link->fromnode->type == SH_NODE_EMISSION) {
       emission_node = link->fromnode;
       break;
@@ -410,7 +410,7 @@ static void update_math_node_single_operand_operators(bNodeTree *ntree)
 {
   bool need_update = false;
 
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_MATH) {
       if (ELEM(node->custom1,
                NODE_MATH_SQRT,
@@ -459,7 +459,7 @@ static void update_vector_math_node_add_and_subtract_operators(bNodeTree *ntree)
 {
   bool need_update = false;
 
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_VECTOR_MATH) {
       bNodeSocket *sockOutValue = nodeFindSocket(node, SOCK_OUT, "Value");
       if (socket_is_used(sockOutValue) &&
@@ -511,7 +511,7 @@ static void update_vector_math_node_dot_product_operator(bNodeTree *ntree)
 {
   bool need_update = false;
 
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_VECTOR_MATH) {
       bNodeSocket *sockOutVector = nodeFindSocket(node, SOCK_OUT, "Vector");
       if (socket_is_used(sockOutVector) && node->custom1 == NODE_VECTOR_MATH_DOT_PRODUCT) {
@@ -550,7 +550,7 @@ static void update_vector_math_node_cross_product_operator(bNodeTree *ntree)
 {
   bool need_update = false;
 
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_VECTOR_MATH) {
       if (node->custom1 == NODE_VECTOR_MATH_CROSS_PRODUCT) {
         bNodeSocket *sockOutVector = nodeFindSocket(node, SOCK_OUT, "Vector");
@@ -616,7 +616,7 @@ static void update_vector_math_node_normalize_operator(bNodeTree *ntree)
 {
   bool need_update = false;
 
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_VECTOR_MATH) {
       bNodeSocket *sockOutValue = nodeFindSocket(node, SOCK_OUT, "Value");
       if (node->custom1 == NODE_VECTOR_MATH_NORMALIZE && socket_is_used(sockOutValue)) {
@@ -675,7 +675,7 @@ static void update_vector_math_node_normalize_operator(bNodeTree *ntree)
  */
 static void update_vector_math_node_operators_enum_mapping(bNodeTree *ntree)
 {
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_VECTOR_MATH) {
       switch (node->custom1) {
         case 2:
@@ -702,7 +702,7 @@ static void update_vector_math_node_average_operator(bNodeTree *ntree)
 {
   bool need_update = false;
 
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_VECTOR_MATH) {
       /* See update_vector_math_node_operators_enum_mapping. */
       if (node->custom1 == -1) {
@@ -765,7 +765,7 @@ static void update_vector_math_node_average_operator(bNodeTree *ntree)
  */
 static void update_noise_node_dimensions(bNodeTree *ntree)
 {
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_TEX_NOISE && node->storage) {
       NodeTexNoise *tex = (NodeTexNoise *)node->storage;
       tex->dimensions = 3;
@@ -853,7 +853,7 @@ static void update_mapping_node_inputs_and_properties(bNodeTree *ntree)
 {
   bool need_update = false;
 
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     /* If node->storage is NULL, then conversion has already taken place.
      * This can happen if a file with the new mapping node [saved from (2, 81, 8) or newer]
      * is opened in a blender version prior to (2, 81, 8) and saved from there again. */
@@ -949,7 +949,7 @@ static void update_mapping_node_inputs_and_properties(bNodeTree *ntree)
  */
 static void update_musgrave_node_dimensions(bNodeTree *ntree)
 {
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_TEX_MUSGRAVE && node->storage) {
       NodeTexMusgrave *tex = (NodeTexMusgrave *)node->storage;
       tex->dimensions = 3;
@@ -977,7 +977,7 @@ static void update_musgrave_node_color_output(bNodeTree *ntree)
  */
 static void update_voronoi_node_dimensions(bNodeTree *ntree)
 {
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_TEX_VORONOI && node->storage) {
       NodeTexVoronoi *tex = (NodeTexVoronoi *)node->storage;
       tex->dimensions = 3;
@@ -992,7 +992,7 @@ static void update_voronoi_node_dimensions(bNodeTree *ntree)
  */
 static void update_voronoi_node_f3_and_f4(bNodeTree *ntree)
 {
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_TEX_VORONOI && node->storage) {
       NodeTexVoronoi *tex = (NodeTexVoronoi *)node->storage;
       if (ELEM(tex->feature, 2, 3)) {
@@ -1010,7 +1010,7 @@ static void update_voronoi_node_f3_and_f4(bNodeTree *ntree)
  */
 static void update_voronoi_node_fac_output(bNodeTree *ntree)
 {
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_TEX_VORONOI) {
       bNodeSocket *facOutput = BLI_findlink(&node->outputs, 1);
       strcpy(facOutput->identifier, "Distance");
@@ -1040,7 +1040,7 @@ static void update_voronoi_node_crackle(bNodeTree *ntree)
 {
   bool need_update = false;
 
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_TEX_VORONOI && node->storage) {
       NodeTexVoronoi *tex = (NodeTexVoronoi *)node->storage;
       bNodeSocket *sockDistance = nodeFindSocket(node, SOCK_OUT, "Distance");
@@ -1169,7 +1169,7 @@ static void update_voronoi_node_square_distance(bNodeTree *ntree)
 {
   bool need_update = false;
 
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_TEX_VORONOI && node->storage) {
       NodeTexVoronoi *tex = (NodeTexVoronoi *)node->storage;
       bNodeSocket *sockDistance = nodeFindSocket(node, SOCK_OUT, "Distance");
@@ -1213,7 +1213,7 @@ static void update_noise_and_wave_distortion(bNodeTree *ntree)
 {
   bool need_update = false;
 
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_TEX_NOISE || node->type == SH_NODE_TEX_WAVE) {
 
       bNodeSocket *sockDistortion = nodeFindSocket(node, SOCK_IN, "Distortion");
@@ -1262,7 +1262,7 @@ static void update_noise_and_wave_distortion(bNodeTree *ntree)
  */
 static void update_wave_node_directions_and_offset(bNodeTree *ntree)
 {
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (node->type == SH_NODE_TEX_WAVE) {
       NodeTexWave *tex = (NodeTexWave *)node->storage;
       tex->bands_direction = SHD_WAVE_BANDS_DIRECTION_DIAGONAL;
@@ -1351,13 +1351,13 @@ void do_versions_after_linking_cycles(Main *bmain)
 
       if (!MAIN_VERSION_ATLEAST(bmain, 273, 5)) {
         /* Euler order was ZYX in previous versions. */
-        for (bNode *node = ntree->nodes.first; node; node = node->next) {
+        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
           mapping_node_order_flip(node);
         }
       }
 
       if (!MAIN_VERSION_ATLEAST(bmain, 276, 6)) {
-        for (bNode *node = ntree->nodes.first; node; node = node->next) {
+        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
           vector_curve_node_remap(node);
         }
       }
@@ -1368,7 +1368,7 @@ void do_versions_after_linking_cycles(Main *bmain)
       }
 
       if (!MAIN_VERSION_ATLEAST(bmain, 279, 3)) {
-        for (bNode *node = ntree->nodes.first; node; node = node->next) {
+        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
           displacement_principled_nodes(node);
         }
       }
@@ -1384,7 +1384,7 @@ void do_versions_after_linking_cycles(Main *bmain)
       }
 
       if (!MAIN_VERSION_ATLEAST(bmain, 280, 66)) {
-        for (bNode *node = ntree->nodes.first; node; node = node->next) {
+        LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
           image_node_colorspace(node);
         }
       }
diff --git a/source/blender/blenloader/intern/versioning_defaults.c b/source/blender/blenloader/intern/versioning_defaults.c
index aa19b3feefb..035e6c88faa 100644
--- a/source/blender/blenloader/intern/versioning_defaults.c
+++ b/source/blender/blenloader/intern/versioning_defaults.c
@@ -71,7 +71,7 @@ static ID *rename_id_for_versioning(Main *bmain,
   /* We can ignore libraries */
   ListBase *lb = which_libbase(bmain, id_type);
   ID *id = NULL;
-  for (ID *idtest = lb->first; idtest; idtest = idtest->next) {
+  LISTBASE_FOREACH (ID *, idtest, lb) {
     if (idtest->lib == NULL) {
       if (STREQ(idtest->name + 2, name_src)) {
         id = idtest;
@@ -101,8 +101,8 @@ static void blo_update_defaults_screen(bScreen *screen,
                                        const char *workspace_name)
 {
   /* For all app templates. */
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-    for (ARegion *region = area->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+    LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
       /* Some toolbars have been saved as initialized,
        * we don't want them to have odd zoom-level or scrolling set, see: T47047 */
       if (ELEM(region->regiontype, RGN_TYPE_UI, RGN_TYPE_TOOLS, RGN_TYPE_TOOL_PROPS)) {
@@ -111,7 +111,7 @@ static void blo_update_defaults_screen(bScreen *screen,
     }
 
     /* Set default folder. */
-    for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+    LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
       if (sl->spacetype == SPACE_FILE) {
         SpaceFile *sfile = (SpaceFile *)sl;
         if (sfile->params) {
@@ -130,8 +130,8 @@ static void blo_update_defaults_screen(bScreen *screen,
     return;
   }
 
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-    for (ARegion *region = area->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+    LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
       /* Remove all stored panels, we want to use defaults
        * (order, open/closed) as defined by UI code here! */
       BKE_area_region_panels_free(&region->panels);
@@ -157,7 +157,7 @@ static void blo_update_defaults_screen(bScreen *screen,
       if (saction->mode == SACTCONT_TIMELINE) {
         saction->ads.flag |= ADS_FLAG_SUMMARY_COLLAPSED;
 
-        for (ARegion *region = area->regionbase.first; region; region = region->next) {
+        LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
           if (region->regiontype == RGN_TYPE_CHANNELS) {
             region->flag |= RGN_FLAG_HIDDEN;
           }
@@ -210,11 +210,11 @@ static void blo_update_defaults_screen(bScreen *screen,
 
   /* Show tool-header by default (for most cases at least, hide for others). */
   const bool hide_image_tool_header = STREQ(workspace_name, "Rendering");
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-    for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+    LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
       ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase : &sl->regionbase;
 
-      for (ARegion *region = regionbase->first; region; region = region->next) {
+      LISTBASE_FOREACH (ARegion *, region, regionbase) {
         if (region->regiontype == RGN_TYPE_TOOL_HEADER) {
           if ((sl->spacetype == SPACE_IMAGE) && hide_image_tool_header) {
             region->flag |= RGN_FLAG_HIDDEN;
@@ -229,8 +229,8 @@ static void blo_update_defaults_screen(bScreen *screen,
 
   /* 2D animation template. */
   if (app_template && STREQ(app_template, "2D_Animation")) {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-      for (ARegion *region = area->regionbase.first; region; region = region->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+      LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
         if (area->spacetype == SPACE_ACTION) {
           SpaceAction *saction = area->spacedata.first;
           /* Enable Sliders. */
@@ -251,7 +251,7 @@ static void blo_update_defaults_screen(bScreen *screen,
 void BLO_update_defaults_workspace(WorkSpace *workspace, const char *app_template)
 {
   ListBase *layouts = BKE_workspace_layouts_get(workspace);
-  for (WorkSpaceLayout *layout = layouts->first; layout; layout = layout->next) {
+  LISTBASE_FOREACH (WorkSpaceLayout *, layout, layouts) {
     if (layout->screen) {
       blo_update_defaults_screen(layout->screen, app_template, workspace->id.name + 2);
     }
@@ -270,11 +270,11 @@ void BLO_update_defaults_workspace(WorkSpace *workspace, const char *app_templat
 
     /* For Sculpting template. */
     if (STREQ(workspace->id.name + 2, "Sculpting")) {
-      for (WorkSpaceLayout *layout = layouts->first; layout; layout = layout->next) {
+      LISTBASE_FOREACH (WorkSpaceLayout *, layout, layouts) {
         bScreen *screen = layout->screen;
         if (screen) {
-          for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-            for (ARegion *region = area->regionbase.first; region; region = region->next) {
+          LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+            LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
               if (area->spacetype == SPACE_VIEW3D) {
                 View3D *v3d = area->spacedata.first;
                 v3d->shading.flag &= ~V3D_SHADING_CAVITY;
@@ -472,7 +472,7 @@ void BLO_update_defaults_startup_blend(Main *bmain, const char *app_template)
     ma->roughness = 0.4f;
 
     if (ma->nodetree) {
-      for (bNode *node = ma->nodetree->nodes.first; node; node = node->next) {
+      LISTBASE_FOREACH (bNode *, node, &ma->nodetree->nodes) {
         if (node->type == SH_NODE_BSDF_PRINCIPLED) {
           bNodeSocket *roughness_socket = nodeFindSocket(node, SOCK_IN, "Roughness");
           bNodeSocketValueFloat *roughness_data = roughness_socket->default_value;
diff --git a/source/blender/blenloader/intern/versioning_userdef.c b/source/blender/blenloader/intern/versioning_userdef.c
index b566cf446ad..28118d6e87a 100644
--- a/source/blender/blenloader/intern/versioning_userdef.c
+++ b/source/blender/blenloader/intern/versioning_userdef.c
@@ -534,7 +534,7 @@ void BLO_version_defaults_userpref_blend(Main *bmain, UserDef *userdef)
     userdef->gpu_viewport_quality = 0.6f;
 
     /* Reset theme, old themes will not be compatible with minor version updates from now on. */
-    for (bTheme *btheme = userdef->themes.first; btheme; btheme = btheme->next) {
+    LISTBASE_FOREACH (bTheme *, btheme, &userdef->themes) {
       memcpy(btheme, &U_theme_default, sizeof(*btheme));
     }
 
@@ -552,8 +552,8 @@ void BLO_version_defaults_userpref_blend(Main *bmain, UserDef *userdef)
 
   if (!USER_VERSION_ATLEAST(280, 31)) {
     /* Remove select/action mouse from user defined keymaps. */
-    for (wmKeyMap *keymap = userdef->user_keymaps.first; keymap; keymap = keymap->next) {
-      for (wmKeyMapDiffItem *kmdi = keymap->diff_items.first; kmdi; kmdi = kmdi->next) {
+    LISTBASE_FOREACH (wmKeyMap *, keymap, &userdef->user_keymaps) {
+      LISTBASE_FOREACH (wmKeyMapDiffItem *, kmdi, &keymap->diff_items) {
         if (kmdi->remove_item) {
           do_version_select_mouse(userdef, kmdi->remove_item);
         }
@@ -562,7 +562,7 @@ void BLO_version_defaults_userpref_blend(Main *bmain, UserDef *userdef)
         }
       }
 
-      for (wmKeyMapItem *kmi = keymap->items.first; kmi; kmi = kmi->next) {
+      LISTBASE_FOREACH (wmKeyMapItem *, kmi, &keymap->items) {
         do_version_select_mouse(userdef, kmi);
       }
     }
@@ -757,7 +757,7 @@ void BLO_version_defaults_userpref_blend(Main *bmain, UserDef *userdef)
     userdef->pixelsize = 1.0f;
   }
 
-  for (bTheme *btheme = userdef->themes.first; btheme; btheme = btheme->next) {
+  LISTBASE_FOREACH (bTheme *, btheme, &userdef->themes) {
     do_versions_theme(userdef, btheme);
   }
 #undef USER_VERSION_ATLEAST
diff --git a/source/blender/blenloader/intern/writefile.c b/source/blender/blenloader/intern/writefile.c
index 43a27318d75..aa8dc39f9c0 100644
--- a/source/blender/blenloader/intern/writefile.c
+++ b/source/blender/blenloader/intern/writefile.c
@@ -718,13 +718,11 @@ static void write_iddata(WriteData *wd, ID *id)
     writestruct(wd, DATA, IDOverrideLibrary, 1, id->override_library);
 
     writelist(wd, DATA, IDOverrideLibraryProperty, &id->override_library->properties);
-    for (IDOverrideLibraryProperty *op = id->override_library->properties.first; op;
-         op = op->next) {
+    LISTBASE_FOREACH (IDOverrideLibraryProperty *, op, &id->override_library->properties) {
       writedata(wd, DATA, strlen(op->rna_path) + 1, op->rna_path);
 
       writelist(wd, DATA, IDOverrideLibraryPropertyOperation, &op->operations);
-      for (IDOverrideLibraryPropertyOperation *opop = op->operations.first; opop;
-           opop = opop->next) {
+      LISTBASE_FOREACH (IDOverrideLibraryPropertyOperation *, opop, &op->operations) {
         if (opop->subitem_reference_name) {
           writedata(
               wd, DATA, strlen(opop->subitem_reference_name) + 1, opop->subitem_reference_name);
@@ -863,11 +861,11 @@ static void write_action(WriteData *wd, bAction *act, const void *id_address)
 
     write_fcurves(wd, &act->curves);
 
-    for (bActionGroup *grp = act->groups.first; grp; grp = grp->next) {
+    LISTBASE_FOREACH (bActionGroup *, grp, &act->groups) {
       writestruct(wd, DATA, bActionGroup, 1, grp);
     }
 
-    for (TimeMarker *marker = act->markers.first; marker; marker = marker->next) {
+    LISTBASE_FOREACH (TimeMarker *, marker, &act->markers) {
       writestruct(wd, DATA, TimeMarker, 1, marker);
     }
   }
@@ -1231,14 +1229,14 @@ static void write_userdef(WriteData *wd, const UserDef *userdef)
 {
   writestruct(wd, USER, UserDef, 1, userdef);
 
-  for (const bTheme *btheme = userdef->themes.first; btheme; btheme = btheme->next) {
+  LISTBASE_FOREACH (const bTheme *, btheme, &userdef->themes) {
     writestruct(wd, DATA, bTheme, 1, btheme);
   }
 
-  for (const wmKeyMap *keymap = userdef->user_keymaps.first; keymap; keymap = keymap->next) {
+  LISTBASE_FOREACH (const wmKeyMap *, keymap, &userdef->user_keymaps) {
     writestruct(wd, DATA, wmKeyMap, 1, keymap);
 
-    for (const wmKeyMapDiffItem *kmdi = keymap->diff_items.first; kmdi; kmdi = kmdi->next) {
+    LISTBASE_FOREACH (const wmKeyMapDiffItem *, kmdi, &keymap->diff_items) {
       writestruct(wd, DATA, wmKeyMapDiffItem, 1, kmdi);
       if (kmdi->remove_item) {
         write_keymapitem(wd, kmdi->remove_item);
@@ -1248,21 +1246,21 @@ static void write_userdef(WriteData *wd, const UserDef *userdef)
       }
     }
 
-    for (const wmKeyMapItem *kmi = keymap->items.first; kmi; kmi = kmi->next) {
+    LISTBASE_FOREACH (const wmKeyMapItem *, kmi, &keymap->items) {
       write_keymapitem(wd, kmi);
     }
   }
 
-  for (const wmKeyConfigPref *kpt = userdef->user_keyconfig_prefs.first; kpt; kpt = kpt->next) {
+  LISTBASE_FOREACH (const wmKeyConfigPref *, kpt, &userdef->user_keyconfig_prefs) {
     writestruct(wd, DATA, wmKeyConfigPref, 1, kpt);
     if (kpt->prop) {
       IDP_WriteProperty(kpt->prop, wd);
     }
   }
 
-  for (const bUserMenu *um = userdef->user_menus.first; um; um = um->next) {
+  LISTBASE_FOREACH (const bUserMenu *, um, &userdef->user_menus) {
     writestruct(wd, DATA, bUserMenu, 1, um);
-    for (const bUserMenuItem *umi = um->items.first; umi; umi = umi->next) {
+    LISTBASE_FOREACH (const bUserMenuItem *, umi, &um->items) {
       if (umi->type == USER_MENU_TYPE_OPERATOR) {
         const bUserMenuItem_Op *umi_op = (const bUserMenuItem_Op *)umi;
         writestruct(wd, DATA, bUserMenuItem_Op, 1, umi_op);
@@ -1284,19 +1282,18 @@ static void write_userdef(WriteData *wd, const UserDef *userdef)
     }
   }
 
-  for (const bAddon *bext = userdef->addons.first; bext; bext = bext->next) {
+  LISTBASE_FOREACH (const bAddon *, bext, &userdef->addons) {
     writestruct(wd, DATA, bAddon, 1, bext);
     if (bext->prop) {
       IDP_WriteProperty(bext->prop, wd);
     }
   }
 
-  for (const bPathCompare *path_cmp = userdef->autoexec_paths.first; path_cmp;
-       path_cmp = path_cmp->next) {
+  LISTBASE_FOREACH (const bPathCompare *, path_cmp, &userdef->autoexec_paths) {
     writestruct(wd, DATA, bPathCompare, 1, path_cmp);
   }
 
-  for (const uiStyle *style = userdef->uistyles.first; style; style = style->next) {
+  LISTBASE_FOREACH (const uiStyle *, style, &userdef->uistyles) {
     writestruct(wd, DATA, uiStyle, 1, style);
   }
 }
@@ -1416,7 +1413,7 @@ static void write_particlesettings(WriteData *wd, ParticleSettings *part, const
       write_curvemapping(wd, part->twistcurve);
     }
 
-    for (ParticleDupliWeight *dw = part->instance_weights.first; dw; dw = dw->next) {
+    LISTBASE_FOREACH (ParticleDupliWeight *, dw, &part->instance_weights) {
       /* update indices, but only if dw->ob is set (can be NULL after loading e.g.) */
       if (dw->ob != NULL) {
         dw->index = 0;
@@ -1436,7 +1433,7 @@ static void write_particlesettings(WriteData *wd, ParticleSettings *part, const
     if (part->boids && part->phystype == PART_PHYS_BOIDS) {
       writestruct(wd, DATA, BoidSettings, 1, part->boids);
 
-      for (BoidState *state = part->boids->states.first; state; state = state->next) {
+      LISTBASE_FOREACH (BoidState *, state, &part->boids->states) {
         write_boid_state(wd, state);
       }
     }
@@ -1621,14 +1618,14 @@ static void write_pose(WriteData *wd, bPose *pose)
 
 static void write_defgroups(WriteData *wd, ListBase *defbase)
 {
-  for (bDeformGroup *defgroup = defbase->first; defgroup; defgroup = defgroup->next) {
+  LISTBASE_FOREACH (bDeformGroup *, defgroup, defbase) {
     writestruct(wd, DATA, bDeformGroup, 1, defgroup);
   }
 }
 
 static void write_fmaps(WriteData *wd, ListBase *fbase)
 {
-  for (bFaceMap *fmap = fbase->first; fmap; fmap = fmap->next) {
+  LISTBASE_FOREACH (bFaceMap *, fmap, fbase) {
     writestruct(wd, DATA, bFaceMap, 1, fmap);
   }
 }
@@ -2001,7 +1998,7 @@ static void write_key(WriteData *wd, Key *key, const void *id_address)
     }
 
     /* direct data */
-    for (KeyBlock *kb = key->block.first; kb; kb = kb->next) {
+    LISTBASE_FOREACH (KeyBlock *, kb, &key->block) {
       writestruct(wd, DATA, KeyBlock, 1, kb);
       if (kb->data) {
         writedata(wd, DATA, kb->totelem * key->elemsize, kb->data);
@@ -2021,7 +2018,7 @@ static void write_camera(WriteData *wd, Camera *cam, const void *id_address)
       write_animdata(wd, cam->adt);
     }
 
-    for (CameraBGImage *bgpic = cam->bg_images.first; bgpic; bgpic = bgpic->next) {
+    LISTBASE_FOREACH (CameraBGImage *, bgpic, &cam->bg_images) {
       writestruct(wd, DATA, CameraBGImage, 1, bgpic);
     }
   }
@@ -2048,7 +2045,7 @@ static void write_mball(WriteData *wd, MetaBall *mb, const void *id_address)
       write_animdata(wd, mb->adt);
     }
 
-    for (MetaElem *ml = mb->elems.first; ml; ml = ml->next) {
+    LISTBASE_FOREACH (MetaElem *, ml, &mb->elems) {
       writestruct(wd, DATA, MetaElem, 1, ml);
     }
   }
@@ -2079,10 +2076,10 @@ static void write_curve(WriteData *wd, Curve *cu, const void *id_address)
     }
     else {
       /* is also the order of reading */
-      for (Nurb *nu = cu->nurb.first; nu; nu = nu->next) {
+      LISTBASE_FOREACH (Nurb *, nu, &cu->nurb) {
         writestruct(wd, DATA, Nurb, 1, nu);
       }
-      for (Nurb *nu = cu->nurb.first; nu; nu = nu->next) {
+      LISTBASE_FOREACH (Nurb *, nu, &cu->nurb) {
         if (nu->type == CU_BEZIER) {
           writestruct(wd, DATA, BezTriple, nu->pntsu, nu->bezt);
         }
@@ -2327,7 +2324,7 @@ static void write_image(WriteData *wd, Image *ima, const void *id_address)
 
     write_previews(wd, ima->preview);
 
-    for (ImageView *iv = ima->views.first; iv; iv = iv->next) {
+    LISTBASE_FOREACH (ImageView *, iv, &ima->views) {
       writestruct(wd, DATA, ImageView, 1, iv);
     }
     writestruct(wd, DATA, Stereo3dFormat, 1, ima->stereo3d_format);
@@ -2450,11 +2447,11 @@ static void write_collection_nolib(WriteData *wd, Collection *collection)
   /* Shared function for collection data-blocks and scene master collection. */
   write_previews(wd, collection->preview);
 
-  for (CollectionObject *cob = collection->gobject.first; cob; cob = cob->next) {
+  LISTBASE_FOREACH (CollectionObject *, cob, &collection->gobject) {
     writestruct(wd, DATA, CollectionObject, 1, cob);
   }
 
-  for (CollectionChild *child = collection->children.first; child; child = child->next) {
+  LISTBASE_FOREACH (CollectionChild *, child, &collection->children) {
     writestruct(wd, DATA, CollectionChild, 1, child);
   }
 
@@ -2532,7 +2529,7 @@ static void write_paint(WriteData *wd, Paint *p)
 
 static void write_layer_collections(WriteData *wd, ListBase *lb)
 {
-  for (LayerCollection *lc = lb->first; lc; lc = lc->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc, lb) {
     writestruct(wd, DATA, LayerCollection, 1, lc);
 
     write_layer_collections(wd, &lc->layer_collections);
@@ -2548,12 +2545,11 @@ static void write_view_layer(WriteData *wd, ViewLayer *view_layer)
     IDP_WriteProperty(view_layer->id_properties, wd);
   }
 
-  for (FreestyleModuleConfig *fmc = view_layer->freestyle_config.modules.first; fmc;
-       fmc = fmc->next) {
+  LISTBASE_FOREACH (FreestyleModuleConfig *, fmc, &view_layer->freestyle_config.modules) {
     writestruct(wd, DATA, FreestyleModuleConfig, 1, fmc);
   }
 
-  for (FreestyleLineSet *fls = view_layer->freestyle_config.linesets.first; fls; fls = fls->next) {
+  LISTBASE_FOREACH (FreestyleLineSet *, fls, &view_layer->freestyle_config.linesets) {
     writestruct(wd, DATA, FreestyleLineSet, 1, fls);
   }
   write_layer_collections(wd, &view_layer->layer_collections);
@@ -2739,7 +2735,7 @@ static void write_scene(WriteData *wd, Scene *sce, const void *id_address)
     SEQ_END;
 
     /* new; meta stack too, even when its nasty restore code */
-    for (MetaStack *ms = ed->metastack.first; ms; ms = ms->next) {
+    LISTBASE_FOREACH (MetaStack *, ms, &ed->metastack) {
       writestruct(wd, DATA, MetaStack, 1, ms);
     }
   }
@@ -2758,17 +2754,17 @@ static void write_scene(WriteData *wd, Scene *sce, const void *id_address)
   }
 
   /* writing dynamic list of TimeMarkers to the blend file */
-  for (TimeMarker *marker = sce->markers.first; marker; marker = marker->next) {
+  LISTBASE_FOREACH (TimeMarker *, marker, &sce->markers) {
     writestruct(wd, DATA, TimeMarker, 1, marker);
   }
 
   /* writing dynamic list of TransformOrientations to the blend file */
-  for (TransformOrientation *ts = sce->transform_spaces.first; ts; ts = ts->next) {
+  LISTBASE_FOREACH (TransformOrientation *, ts, &sce->transform_spaces) {
     writestruct(wd, DATA, TransformOrientation, 1, ts);
   }
 
   /* writing MultiView to the blend file */
-  for (SceneRenderView *srv = sce->r.views.first; srv; srv = srv->next) {
+  LISTBASE_FOREACH (SceneRenderView *, srv, &sce->r.views) {
     writestruct(wd, DATA, SceneRenderView, 1, srv);
   }
 
@@ -2794,7 +2790,7 @@ static void write_scene(WriteData *wd, Scene *sce, const void *id_address)
   write_previews(wd, sce->preview);
   write_curvemapping_curves(wd, &sce->r.mblur_shutter_curve);
 
-  for (ViewLayer *view_layer = sce->view_layers.first; view_layer; view_layer = view_layer->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &sce->view_layers) {
     write_view_layer(wd, view_layer);
   }
 
@@ -2947,7 +2943,7 @@ static void write_soops(WriteData *wd, SpaceOutliner *so)
 
 static void write_panel_list(WriteData *wd, ListBase *lb)
 {
-  for (Panel *pa = lb->first; pa; pa = pa->next) {
+  LISTBASE_FOREACH (Panel *, pa, lb) {
     writestruct(wd, DATA, Panel, 1, pa);
     write_panel_list(wd, &pa->children);
   }
@@ -2955,27 +2951,25 @@ static void write_panel_list(WriteData *wd, ListBase *lb)
 
 static void write_area_regions(WriteData *wd, ScrArea *area)
 {
-  for (ARegion *region = area->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
     write_region(wd, region, area->spacetype);
     write_panel_list(wd, &region->panels);
 
-    for (PanelCategoryStack *pc_act = region->panels_category_active.first; pc_act;
-         pc_act = pc_act->next) {
+    LISTBASE_FOREACH (PanelCategoryStack *, pc_act, &region->panels_category_active) {
       writestruct(wd, DATA, PanelCategoryStack, 1, pc_act);
     }
 
-    for (uiList *ui_list = region->ui_lists.first; ui_list; ui_list = ui_list->next) {
+    LISTBASE_FOREACH (uiList *, ui_list, &region->ui_lists) {
       write_uilist(wd, ui_list);
     }
 
-    for (uiPreview *ui_preview = region->ui_previews.first; ui_preview;
-         ui_preview = ui_preview->next) {
+    LISTBASE_FOREACH (uiPreview *, ui_preview, &region->ui_previews) {
       writestruct(wd, DATA, uiPreview, 1, ui_preview);
     }
   }
 
-  for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
-    for (ARegion *region = sl->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
+    LISTBASE_FOREACH (ARegion *, region, &sl->regionbase) {
       write_region(wd, region, sl->spacetype);
     }
 
@@ -3088,7 +3082,7 @@ static void write_area_map(WriteData *wd, ScrAreaMap *area_map)
 {
   writelist(wd, DATA, ScrVert, &area_map->vertbase);
   writelist(wd, DATA, ScrEdge, &area_map->edgebase);
-  for (ScrArea *area = area_map->areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &area_map->areabase) {
     area->butspacetype = area->spacetype; /* Just for compatibility, will be reset below. */
 
     writestruct(wd, DATA, ScrArea, 1, area);
@@ -3109,7 +3103,7 @@ static void write_windowmanager(WriteData *wd, wmWindowManager *wm, const void *
   write_iddata(wd, &wm->id);
   write_wm_xr_data(wd, &wm->xr);
 
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
 #ifndef WITH_GLOBAL_AREA_WRITING
     /* Don't write global areas yet, while we make changes to them. */
     ScrAreaMap global_areas = win->global_areas;
@@ -3165,7 +3159,7 @@ static void write_bone(WriteData *wd, Bone *bone)
   }
 
   /* Write Children */
-  for (Bone *cbone = bone->childbase.first; cbone; cbone = cbone->next) {
+  LISTBASE_FOREACH (Bone *, cbone, &bone->childbase) {
     write_bone(wd, cbone);
   }
 }
@@ -3188,7 +3182,7 @@ static void write_armature(WriteData *wd, bArmature *arm, const void *id_address
     }
 
     /* Direct data */
-    for (Bone *bone = arm->bonebase.first; bone; bone = bone->next) {
+    LISTBASE_FOREACH (Bone *, bone, &arm->bonebase) {
       write_bone(wd, bone);
     }
   }
@@ -3214,11 +3208,11 @@ static void write_text(WriteData *wd, Text *text, const void *id_address)
 
   if (!(text->flags & TXT_ISEXT)) {
     /* now write the text data, in two steps for optimization in the readfunction */
-    for (TextLine *tmp = text->lines.first; tmp; tmp = tmp->next) {
+    LISTBASE_FOREACH (TextLine *, tmp, &text->lines) {
       writestruct(wd, DATA, TextLine, 1, tmp);
     }
 
-    for (TextLine *tmp = text->lines.first; tmp; tmp = tmp->next) {
+    LISTBASE_FOREACH (TextLine *, tmp, &text->lines) {
       writedata(wd, DATA, tmp->len + 1, tmp->line);
     }
   }
@@ -3777,7 +3771,7 @@ static void write_workspace(WriteData *wd, WorkSpace *workspace, const void *id_
   writelist(wd, DATA, WorkSpaceDataRelation, &workspace->hook_layout_relations);
   writelist(wd, DATA, wmOwnerID, &workspace->owner_ids);
   writelist(wd, DATA, bToolRef, &workspace->tools);
-  for (bToolRef *tref = workspace->tools.first; tref; tref = tref->next) {
+  LISTBASE_FOREACH (bToolRef *, tref, &workspace->tools) {
     if (tref->properties) {
       IDP_WriteProperty(tref->properties, wd);
     }
diff --git a/source/blender/bmesh/intern/bmesh_marking.c b/source/blender/bmesh/intern/bmesh_marking.c
index d33f4e0a1d6..1bf419f4461 100644
--- a/source/blender/bmesh/intern/bmesh_marking.c
+++ b/source/blender/bmesh/intern/bmesh_marking.c
@@ -1083,12 +1083,12 @@ void BM_select_history_merge_from_targetmap(
 {
 
 #ifdef DEBUG
-  for (BMEditSelection *ese = bm->selected.first; ese; ese = ese->next) {
+  LISTBASE_FOREACH (BMEditSelection *, ese, &bm->selected) {
     BLI_assert(BM_ELEM_API_FLAG_TEST(ese->ele, _FLAG_OVERLAP) == 0);
   }
 #endif
 
-  for (BMEditSelection *ese = bm->selected.first; ese; ese = ese->next) {
+  LISTBASE_FOREACH (BMEditSelection *, ese, &bm->selected) {
     BM_ELEM_API_FLAG_ENABLE(ese->ele, _FLAG_OVERLAP);
 
     /* Only loop when (use_chain == true). */
diff --git a/source/blender/bmesh/intern/bmesh_mesh.c b/source/blender/bmesh/intern/bmesh_mesh.c
index ff618142bfa..933223c3337 100644
--- a/source/blender/bmesh/intern/bmesh_mesh.c
+++ b/source/blender/bmesh/intern/bmesh_mesh.c
@@ -2593,7 +2593,7 @@ void BM_mesh_rebuild(BMesh *bm,
     }
   }
 
-  for (BMEditSelection *ese = bm->selected.first; ese; ese = ese->next) {
+  LISTBASE_FOREACH (BMEditSelection *, ese, &bm->selected) {
     switch (ese->htype) {
       case BM_VERT:
         if (remap & BM_VERT) {
diff --git a/source/blender/draw/engines/eevee/eevee_materials.c b/source/blender/draw/engines/eevee/eevee_materials.c
index ba6aacf00d7..10ad8f3f1be 100644
--- a/source/blender/draw/engines/eevee/eevee_materials.c
+++ b/source/blender/draw/engines/eevee/eevee_materials.c
@@ -2187,7 +2187,7 @@ void EEVEE_particle_hair_cache_populate(EEVEE_Data *vedata,
 
   if (ob->type == OB_MESH) {
     if (ob != draw_ctx->object_edit) {
-      for (ModifierData *md = ob->modifiers.first; md; md = md->next) {
+      LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
         if (md->type != eModifierType_ParticleSystem) {
           continue;
         }
diff --git a/source/blender/draw/engines/eevee/eevee_volumes.c b/source/blender/draw/engines/eevee/eevee_volumes.c
index b97766d1ca2..63c96ac8c25 100644
--- a/source/blender/draw/engines/eevee/eevee_volumes.c
+++ b/source/blender/draw/engines/eevee/eevee_volumes.c
@@ -852,7 +852,7 @@ void EEVEE_volumes_resolve(EEVEE_ViewLayerData *UNUSED(sldata), EEVEE_Data *veda
 void EEVEE_volumes_free_smoke_textures(void)
 {
   /* Free Smoke Textures after rendering */
-  for (LinkData *link = e_data.smoke_domains.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &e_data.smoke_domains) {
     FluidModifierData *mmd = (FluidModifierData *)link->data;
     GPU_free_smoke(mmd);
   }
diff --git a/source/blender/draw/engines/gpencil/gpencil_engine.c b/source/blender/draw/engines/gpencil/gpencil_engine.c
index 4963221743f..50e4e8d2ec4 100644
--- a/source/blender/draw/engines/gpencil/gpencil_engine.c
+++ b/source/blender/draw/engines/gpencil/gpencil_engine.c
@@ -744,8 +744,8 @@ static void GPENCIL_draw_scene_depth_only(void *ved)
     GPU_framebuffer_bind(dfbl->depth_only_fb);
   }
 
-  for (GPENCIL_tObject *ob = pd->tobjects.first; ob; ob = ob->next) {
-    for (GPENCIL_tLayer *layer = ob->layers.first; layer; layer = layer->next) {
+  LISTBASE_FOREACH (GPENCIL_tObject *, ob, &pd->tobjects) {
+    LISTBASE_FOREACH (GPENCIL_tLayer *, layer, &ob->layers) {
       DRW_draw_pass(layer->geom_ps);
     }
   }
@@ -826,7 +826,7 @@ static void GPENCIL_draw_object(GPENCIL_Data *vedata, GPENCIL_tObject *ob)
     GPU_framebuffer_multi_clear(fb_object, clear_cols);
   }
 
-  for (GPENCIL_tLayer *layer = ob->layers.first; layer; layer = layer->next) {
+  LISTBASE_FOREACH (GPENCIL_tLayer *, layer, &ob->layers) {
     if (layer->mask_bits) {
       gpencil_draw_mask(vedata, ob, layer);
     }
@@ -847,7 +847,7 @@ static void GPENCIL_draw_object(GPENCIL_Data *vedata, GPENCIL_tObject *ob)
     }
   }
 
-  for (GPENCIL_tVfx *vfx = ob->vfx.first; vfx; vfx = vfx->next) {
+  LISTBASE_FOREACH (GPENCIL_tVfx *, vfx, &ob->vfx) {
     GPU_framebuffer_bind(*(vfx->target_fb));
     DRW_draw_pass(vfx->vfx_ps);
   }
@@ -893,7 +893,7 @@ static void GPENCIL_fast_draw_end(GPENCIL_Data *vedata)
     pd->snapshot_buffer_dirty = false;
   }
   /* Draw the sbuffer stroke(s). */
-  for (GPENCIL_tObject *ob = pd->sbuffer_tobjects.first; ob; ob = ob->next) {
+  LISTBASE_FOREACH (GPENCIL_tObject *, ob, &pd->sbuffer_tobjects) {
     GPENCIL_draw_object(vedata, ob);
   }
 }
@@ -934,7 +934,7 @@ void GPENCIL_draw_scene(void *ved)
     GPU_framebuffer_multi_clear(fbl->gpencil_fb, clear_cols);
   }
 
-  for (GPENCIL_tObject *ob = pd->tobjects.first; ob; ob = ob->next) {
+  LISTBASE_FOREACH (GPENCIL_tObject *, ob, &pd->tobjects) {
     GPENCIL_draw_object(vedata, ob);
   }
 
diff --git a/source/blender/draw/engines/overlay/overlay_extra.c b/source/blender/draw/engines/overlay/overlay_extra.c
index 19b88682c1d..566c8cad528 100644
--- a/source/blender/draw/engines/overlay/overlay_extra.c
+++ b/source/blender/draw/engines/overlay/overlay_extra.c
@@ -913,7 +913,7 @@ static void camera_view3d_reconstruction(OVERLAY_ExtraCallBuffers *cb,
     }
 
     ListBase *tracksbase = BKE_tracking_object_get_tracks(tracking, tracking_object);
-    for (MovieTrackingTrack *track = tracksbase->first; track; track = track->next) {
+    LISTBASE_FOREACH (MovieTrackingTrack *, track, tracksbase) {
       if ((track->flag & TRACK_HAS_BUNDLE) == 0) {
         continue;
       }
diff --git a/source/blender/draw/engines/overlay/overlay_image.c b/source/blender/draw/engines/overlay/overlay_image.c
index 7eda342d700..45d218b4959 100644
--- a/source/blender/draw/engines/overlay/overlay_image.c
+++ b/source/blender/draw/engines/overlay/overlay_image.c
@@ -313,7 +313,7 @@ void OVERLAY_image_camera_cache_populate(OVERLAY_Data *vedata, Object *ob)
   float norm_obmat[4][4];
   normalize_m4_m4(norm_obmat, ob->obmat);
 
-  for (CameraBGImage *bgpic = cam->bg_images.first; bgpic; bgpic = bgpic->next) {
+  LISTBASE_FOREACH (CameraBGImage *, bgpic, &cam->bg_images) {
     if (bgpic->flag & CAM_BGIMG_FLAG_DISABLED) {
       continue;
     }
diff --git a/source/blender/draw/engines/overlay/overlay_motion_path.c b/source/blender/draw/engines/overlay/overlay_motion_path.c
index 997cc0fbbdb..531e1faf715 100644
--- a/source/blender/draw/engines/overlay/overlay_motion_path.c
+++ b/source/blender/draw/engines/overlay/overlay_motion_path.c
@@ -212,7 +212,7 @@ void OVERLAY_motion_path_cache_populate(OVERLAY_Data *vedata, Object *ob)
 
   if (ob->type == OB_ARMATURE) {
     if (OVERLAY_armature_is_pose_mode(ob, draw_ctx)) {
-      for (bPoseChannel *pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
+      LISTBASE_FOREACH (bPoseChannel *, pchan, &ob->pose->chanbase) {
         if (pchan->mpath) {
           motion_path_cache(vedata, ob, pchan, &ob->pose->avs, pchan->mpath);
         }
diff --git a/source/blender/draw/engines/workbench/workbench_volume.c b/source/blender/draw/engines/workbench/workbench_volume.c
index d505902d69c..21cb567aaae 100644
--- a/source/blender/draw/engines/workbench/workbench_volume.c
+++ b/source/blender/draw/engines/workbench/workbench_volume.c
@@ -291,7 +291,7 @@ void workbench_volume_draw_finish(WORKBENCH_Data *vedata)
    * modifier we don't want them to take precious VRAM if the
    * modifier is not used for display. We should share them for
    * all viewport in a redraw at least. */
-  for (LinkData *link = wpd->smoke_domains.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &wpd->smoke_domains) {
     FluidModifierData *mmd = (FluidModifierData *)link->data;
     GPU_free_smoke(mmd);
   }
diff --git a/source/blender/draw/intern/draw_cache_impl_curve.c b/source/blender/draw/intern/draw_cache_impl_curve.c
index 33571d82079..4f03ab04862 100644
--- a/source/blender/draw/intern/draw_cache_impl_curve.c
+++ b/source/blender/draw/intern/draw_cache_impl_curve.c
@@ -77,7 +77,7 @@ static void curve_render_overlay_verts_edges_len_get(ListBase *lb,
   BLI_assert(r_vert_len || r_edge_len);
   int vert_len = 0;
   int edge_len = 0;
-  for (Nurb *nu = lb->first; nu; nu = nu->next) {
+  LISTBASE_FOREACH (Nurb *, nu, lb) {
     if (nu->bezt) {
       vert_len += nu->pntsu * 3;
       /* 2x handles per point*/
@@ -107,7 +107,7 @@ static void curve_render_wire_verts_edges_len_get(const CurveCache *ob_curve_cac
   int vert_len = 0;
   int edge_len = 0;
   int curve_len = 0;
-  for (const BevList *bl = ob_curve_cache->bev.first; bl; bl = bl->next) {
+  LISTBASE_FOREACH (const BevList *, bl, &ob_curve_cache->bev) {
     if (bl->nr > 0) {
       const bool is_cyclic = bl->poly != -1;
       edge_len += (is_cyclic) ? bl->nr : bl->nr - 1;
@@ -115,7 +115,7 @@ static void curve_render_wire_verts_edges_len_get(const CurveCache *ob_curve_cac
       curve_len += 1;
     }
   }
-  for (const DispList *dl = ob_curve_cache->disp.first; dl; dl = dl->next) {
+  LISTBASE_FOREACH (const DispList *, dl, &ob_curve_cache->disp) {
     if (ELEM(dl->type, DL_SEGM, DL_POLY)) {
       BLI_assert(dl->parts == 1);
       const bool is_cyclic = dl->type == DL_POLY;
@@ -315,7 +315,7 @@ static void curve_cd_calc_used_gpu_layers(int *cd_layers,
     }
 
     ListBase gpu_attrs = GPU_material_attributes(gpumat);
-    for (GPUMaterialAttribute *gpu_attr = gpu_attrs.first; gpu_attr; gpu_attr = gpu_attr->next) {
+    LISTBASE_FOREACH (GPUMaterialAttribute *, gpu_attr, &gpu_attrs) {
       const char *name = gpu_attr->name;
       int type = gpu_attr->type;
 
@@ -566,7 +566,7 @@ static void curve_create_curves_pos(CurveRenderData *rdata, GPUVertBuf *vbo_curv
   GPU_vertbuf_data_alloc(vbo_curves_pos, vert_len);
 
   int v_idx = 0;
-  for (const BevList *bl = rdata->ob_curve_cache->bev.first; bl; bl = bl->next) {
+  LISTBASE_FOREACH (const BevList *, bl, &rdata->ob_curve_cache->bev) {
     if (bl->nr <= 0) {
       continue;
     }
@@ -575,7 +575,7 @@ static void curve_create_curves_pos(CurveRenderData *rdata, GPUVertBuf *vbo_curv
       GPU_vertbuf_attr_set(vbo_curves_pos, attr_id.pos, v_idx, bevp->vec);
     }
   }
-  for (const DispList *dl = rdata->ob_curve_cache->disp.first; dl; dl = dl->next) {
+  LISTBASE_FOREACH (const DispList *, dl, &rdata->ob_curve_cache->disp) {
     if (ELEM(dl->type, DL_SEGM, DL_POLY)) {
       for (int i = 0; i < dl->nr; v_idx++, i++) {
         GPU_vertbuf_attr_set(vbo_curves_pos, attr_id.pos, v_idx, &((float(*)[3])dl->verts)[i]);
@@ -599,7 +599,7 @@ static void curve_create_curves_lines(CurveRenderData *rdata, GPUIndexBuf *ibo_c
   GPU_indexbuf_init_ex(&elb, GPU_PRIM_LINE_STRIP, index_len, vert_len);
 
   int v_idx = 0;
-  for (const BevList *bl = rdata->ob_curve_cache->bev.first; bl; bl = bl->next) {
+  LISTBASE_FOREACH (const BevList *, bl, &rdata->ob_curve_cache->bev) {
     if (bl->nr <= 0) {
       continue;
     }
@@ -613,7 +613,7 @@ static void curve_create_curves_lines(CurveRenderData *rdata, GPUIndexBuf *ibo_c
     GPU_indexbuf_add_primitive_restart(&elb);
     v_idx += bl->nr;
   }
-  for (const DispList *dl = rdata->ob_curve_cache->disp.first; dl; dl = dl->next) {
+  LISTBASE_FOREACH (const DispList *, dl, &rdata->ob_curve_cache->disp) {
     if (ELEM(dl->type, DL_SEGM, DL_POLY)) {
       const bool is_cyclic = dl->type == DL_POLY;
       if (is_cyclic) {
diff --git a/source/blender/draw/intern/draw_cache_impl_displist.c b/source/blender/draw/intern/draw_cache_impl_displist.c
index 24a28022b70..e09f78aa51f 100644
--- a/source/blender/draw/intern/draw_cache_impl_displist.c
+++ b/source/blender/draw/intern/draw_cache_impl_displist.c
@@ -72,7 +72,7 @@ static int dl_tri_len(const DispList *dl)
 static int curve_render_surface_vert_len_get(const ListBase *lb)
 {
   int vert_len = 0;
-  for (const DispList *dl = lb->first; dl; dl = dl->next) {
+  LISTBASE_FOREACH (const DispList *, dl, lb) {
     vert_len += dl_vert_len(dl);
   }
   return vert_len;
@@ -81,7 +81,7 @@ static int curve_render_surface_vert_len_get(const ListBase *lb)
 static int curve_render_surface_tri_len_get(const ListBase *lb)
 {
   int tri_len = 0;
-  for (const DispList *dl = lb->first; dl; dl = dl->next) {
+  LISTBASE_FOREACH (const DispList *, dl, lb) {
     tri_len += dl_tri_len(dl);
   }
   return tri_len;
@@ -193,7 +193,7 @@ void DRW_displist_vertbuf_create_pos_and_nor(ListBase *lb, GPUVertBuf *vbo)
   BKE_displist_normals_add(lb);
 
   int vbo_len_used = 0;
-  for (const DispList *dl = lb->first; dl; dl = dl->next) {
+  LISTBASE_FOREACH (const DispList *, dl, lb) {
     const bool ndata_is_single = dl->type == DL_INDEX3;
     if (ELEM(dl->type, DL_INDEX3, DL_INDEX4, DL_SURF)) {
       const float *fp_co = dl->verts;
@@ -263,7 +263,7 @@ void DRW_displist_indexbuf_create_triangles_in_order(ListBase *lb, GPUIndexBuf *
   GPU_indexbuf_init(&elb, GPU_PRIM_TRIS, tri_len, vert_len);
 
   int ofs = 0;
-  for (const DispList *dl = lb->first; dl; dl = dl->next) {
+  LISTBASE_FOREACH (const DispList *, dl, lb) {
     displist_indexbufbuilder_set((SetTriIndicesFn *)GPU_indexbuf_add_tri_verts,
                                  (SetTriIndicesFn *)GPU_indexbuf_add_tri_verts,
                                  &elb,
@@ -290,7 +290,7 @@ void DRW_displist_indexbuf_create_triangles_loop_split_by_material(ListBase *lb,
 
   /* calc each index buffer builder */
   uint v_idx = 0;
-  for (const DispList *dl = lb->first; dl; dl = dl->next) {
+  LISTBASE_FOREACH (const DispList *, dl, lb) {
     v_idx = displist_indexbufbuilder_tess_set((SetTriIndicesFn *)GPU_indexbuf_add_tri_verts,
                                               (SetTriIndicesFn *)GPU_indexbuf_add_tri_verts,
                                               &elb[dl->col],
@@ -328,7 +328,7 @@ void DRW_displist_indexbuf_create_lines_in_order(ListBase *lb, GPUIndexBuf *ibo)
   GPU_indexbuf_init(&elb, GPU_PRIM_LINES, tri_len * 3, vert_len);
 
   int ofs = 0;
-  for (const DispList *dl = lb->first; dl; dl = dl->next) {
+  LISTBASE_FOREACH (const DispList *, dl, lb) {
     displist_indexbufbuilder_set(
         set_overlay_wires_tri_indices, set_overlay_wires_quad_tri_indices, &elb, dl, ofs);
     ofs += dl_vert_len(dl);
@@ -508,7 +508,7 @@ void DRW_displist_vertbuf_create_loop_pos_and_nor_and_uv_and_tan(ListBase *lb,
 
   BKE_displist_normals_add(lb);
 
-  for (const DispList *dl = lb->first; dl; dl = dl->next) {
+  LISTBASE_FOREACH (const DispList *, dl, lb) {
     const bool is_smooth = (dl->rt & CU_SMOOTH) != 0;
     if (ELEM(dl->type, DL_INDEX3, DL_INDEX4, DL_SURF)) {
       const float(*verts)[3] = (float(*)[3])dl->verts;
@@ -780,7 +780,7 @@ void DRW_displist_indexbuf_create_edges_adjacency_lines(struct ListBase *lb,
   /* pack values to pass to `set_edges_adjacency_lines_indices` function. */
   void *thunk[3] = {&elb, eh, r_is_manifold};
   int v_idx = 0;
-  for (const DispList *dl = lb->first; dl; dl = dl->next) {
+  LISTBASE_FOREACH (const DispList *, dl, lb) {
     displist_indexbufbuilder_set((SetTriIndicesFn *)set_edges_adjacency_lines_indices,
                                  (SetTriIndicesFn *)set_edges_adjacency_lines_indices,
                                  thunk,
diff --git a/source/blender/draw/intern/draw_cache_impl_mesh.c b/source/blender/draw/intern/draw_cache_impl_mesh.c
index a4b88d99a3c..308d87f1385 100644
--- a/source/blender/draw/intern/draw_cache_impl_mesh.c
+++ b/source/blender/draw/intern/draw_cache_impl_mesh.c
@@ -144,7 +144,7 @@ static DRW_MeshCDMask mesh_cd_calc_used_gpu_layers(const Mesh *me,
     GPUMaterial *gpumat = gpumat_array[i];
     if (gpumat) {
       ListBase gpu_attrs = GPU_material_attributes(gpumat);
-      for (GPUMaterialAttribute *gpu_attr = gpu_attrs.first; gpu_attr; gpu_attr = gpu_attr->next) {
+      LISTBASE_FOREACH (GPUMaterialAttribute *, gpu_attr, &gpu_attrs) {
         const char *name = gpu_attr->name;
         int type = gpu_attr->type;
         int layer = -1;
diff --git a/source/blender/draw/intern/draw_cache_impl_volume.c b/source/blender/draw/intern/draw_cache_impl_volume.c
index c64817413b8..a7562b1b8ea 100644
--- a/source/blender/draw/intern/draw_cache_impl_volume.c
+++ b/source/blender/draw/intern/draw_cache_impl_volume.c
@@ -124,7 +124,7 @@ static void volume_batch_cache_clear(Volume *volume)
     return;
   }
 
-  for (DRWVolumeGrid *grid = cache->grids.first; grid; grid = grid->next) {
+  LISTBASE_FOREACH (DRWVolumeGrid *, grid, &cache->grids) {
     MEM_SAFE_FREE(grid->name);
     DRW_TEXTURE_FREE_SAFE(grid->texture);
   }
diff --git a/source/blender/draw/intern/draw_manager.c b/source/blender/draw/intern/draw_manager.c
index 280e82ef473..1434cac5f97 100644
--- a/source/blender/draw/intern/draw_manager.c
+++ b/source/blender/draw/intern/draw_manager.c
@@ -690,8 +690,7 @@ void **DRW_duplidata_get(void *vedata)
 
 void *DRW_view_layer_engine_data_get(DrawEngineType *engine_type)
 {
-  for (ViewLayerEngineData *sled = DST.draw_ctx.view_layer->drawdata.first; sled;
-       sled = sled->next) {
+  LISTBASE_FOREACH (ViewLayerEngineData *, sled, &DST.draw_ctx.view_layer->drawdata) {
     if (sled->engine_type == engine_type) {
       return sled->storage;
     }
@@ -922,7 +921,7 @@ void DRW_cache_free_old_batches(Main *bmain)
 
 static void drw_engines_init(void)
 {
-  for (LinkData *link = DST.enabled_engines.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &DST.enabled_engines) {
     DrawEngineType *engine = link->data;
     ViewportEngineData *data = drw_viewport_engine_data_ensure(engine);
     PROFILE_START(stime);
@@ -966,7 +965,7 @@ static void drw_engines_world_update(Scene *scene)
     return;
   }
 
-  for (LinkData *link = DST.enabled_engines.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &DST.enabled_engines) {
     DrawEngineType *engine = link->data;
     ViewportEngineData *data = drw_viewport_engine_data_ensure(engine);
 
@@ -1032,7 +1031,7 @@ static void drw_engines_cache_finish(void)
 
 static void drw_engines_draw_scene(void)
 {
-  for (LinkData *link = DST.enabled_engines.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &DST.enabled_engines) {
     DrawEngineType *engine = link->data;
     ViewportEngineData *data = drw_viewport_engine_data_ensure(engine);
     PROFILE_START(stime);
@@ -1055,7 +1054,7 @@ static void drw_engines_draw_scene(void)
 
 static void drw_engines_draw_text(void)
 {
-  for (LinkData *link = DST.enabled_engines.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &DST.enabled_engines) {
     DrawEngineType *engine = link->data;
     ViewportEngineData *data = drw_viewport_engine_data_ensure(engine);
     PROFILE_START(stime);
@@ -1071,7 +1070,7 @@ static void drw_engines_draw_text(void)
 /* Draw render engine info. */
 void DRW_draw_region_engine_info(int xoffset, int yoffset)
 {
-  for (LinkData *link = DST.enabled_engines.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &DST.enabled_engines) {
     DrawEngineType *engine = link->data;
     ViewportEngineData *data = drw_viewport_engine_data_ensure(engine);
 
@@ -1178,7 +1177,7 @@ static void drw_engines_data_validate(void)
   void **engine_handle_array = BLI_array_alloca(engine_handle_array, enabled_engines + 1);
   int i = 0;
 
-  for (LinkData *link = DST.enabled_engines.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &DST.enabled_engines) {
     DrawEngineType *engine = link->data;
     engine_handle_array[i++] = engine;
   }
@@ -1245,7 +1244,7 @@ void DRW_notify_view_update(const DRWUpdateContext *update_ctx)
     drw_engines_enable(view_layer, engine_type, gpencil_engine_needed);
     drw_engines_data_validate();
 
-    for (LinkData *link = DST.enabled_engines.first; link; link = link->next) {
+    LISTBASE_FOREACH (LinkData *, link, &DST.enabled_engines) {
       DrawEngineType *draw_engine = link->data;
       ViewportEngineData *data = drw_viewport_engine_data_ensure(draw_engine);
 
diff --git a/source/blender/draw/intern/draw_manager_data.c b/source/blender/draw/intern/draw_manager_data.c
index 50193dde7ee..0544bb3c49b 100644
--- a/source/blender/draw/intern/draw_manager_data.c
+++ b/source/blender/draw/intern/draw_manager_data.c
@@ -1300,7 +1300,7 @@ static DRWShadingGroup *drw_shgroup_material_inputs(DRWShadingGroup *grp,
   ListBase textures = GPU_material_textures(material);
 
   /* Bind all textures needed by the material. */
-  for (GPUMaterialTexture *tex = textures.first; tex; tex = tex->next) {
+  LISTBASE_FOREACH (GPUMaterialTexture *, tex, &textures) {
     if (tex->ima) {
       /* Image */
       if (tex->tiled_mapping_name[0]) {
@@ -1903,7 +1903,7 @@ DRWPass *DRW_pass_create(const char *name, DRWState state)
 
 bool DRW_pass_is_empty(DRWPass *pass)
 {
-  for (DRWShadingGroup *shgroup = pass->shgroups.first; shgroup; shgroup = shgroup->next) {
+  LISTBASE_FOREACH (DRWShadingGroup *, shgroup, &pass->shgroups) {
     if (!DRW_shgroup_is_empty(shgroup)) {
       return false;
     }
@@ -1930,7 +1930,7 @@ void DRW_pass_foreach_shgroup(DRWPass *pass,
                               void (*callback)(void *userData, DRWShadingGroup *shgrp),
                               void *userData)
 {
-  for (DRWShadingGroup *shgroup = pass->shgroups.first; shgroup; shgroup = shgroup->next) {
+  LISTBASE_FOREACH (DRWShadingGroup *, shgroup, &pass->shgroups) {
     callback(userData, shgroup);
   }
 }
diff --git a/source/blender/draw/intern/draw_manager_profiling.c b/source/blender/draw/intern/draw_manager_profiling.c
index b4bcfd3f600..57887c11c02 100644
--- a/source/blender/draw/intern/draw_manager_profiling.c
+++ b/source/blender/draw/intern/draw_manager_profiling.c
@@ -251,7 +251,7 @@ void DRW_stats_draw(const rcti *rect)
 
   /* Engines rows */
   char time_to_txt[16];
-  for (LinkData *link = DST.enabled_engines.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &DST.enabled_engines) {
     u = 0;
     DrawEngineType *engine = link->data;
     ViewportEngineData *data = drw_viewport_engine_data_ensure(engine);
diff --git a/source/blender/draw/intern/draw_manager_shader.c b/source/blender/draw/intern/draw_manager_shader.c
index 89884d58099..b451cfb1d05 100644
--- a/source/blender/draw/intern/draw_manager_shader.c
+++ b/source/blender/draw/intern/draw_manager_shader.c
@@ -249,7 +249,7 @@ void DRW_deferred_shader_remove(GPUMaterial *mat)
       /* No job running, do not create a new one by calling WM_jobs_get. */
       continue;
     }
-    for (wmWindow *win = wm->windows.first; win; win = win->next) {
+    LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
       wmJob *wm_job = WM_jobs_get(
           wm, win, scene, "Shaders Compilation", WM_JOB_PROGRESS, WM_JOB_TYPE_SHADER_COMPILATION);
 
diff --git a/source/blender/editors/animation/anim_filter.c b/source/blender/editors/animation/anim_filter.c
index 5ea5b2aa1f6..38a19e85661 100644
--- a/source/blender/editors/animation/anim_filter.c
+++ b/source/blender/editors/animation/anim_filter.c
@@ -3139,7 +3139,7 @@ static Base **animdata_filter_ds_sorted_bases(bDopeSheet *ads,
   size_t num_bases = 0;
 
   Base **sorted_bases = MEM_mallocN(sizeof(Base *) * tot_bases, "Dopesheet Usable Sorted Bases");
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     if (animdata_filter_base_is_ok(ads, base, filter_mode)) {
       sorted_bases[num_bases++] = base;
     }
@@ -3233,7 +3233,7 @@ static size_t animdata_filter_dopesheet(bAnimContext *ac,
     /* Filter and add contents of each base (i.e. object) without them sorting first
      * NOTE: This saves performance in cases where order doesn't matter
      */
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       if (animdata_filter_base_is_ok(ads, base, filter_mode)) {
         /* since we're still here, this object should be usable */
         items += animdata_filter_dopesheet_ob(ac, anim_data, ads, base, filter_mode);
diff --git a/source/blender/editors/animation/anim_markers.c b/source/blender/editors/animation/anim_markers.c
index 5523fd67dca..46566feea91 100644
--- a/source/blender/editors/animation/anim_markers.c
+++ b/source/blender/editors/animation/anim_markers.c
@@ -358,7 +358,7 @@ void ED_markers_deselect_all(ListBase *markers, int action)
     action = ED_markers_get_first_selected(markers) ? SEL_DESELECT : SEL_SELECT;
   }
 
-  for (TimeMarker *marker = markers->first; marker; marker = marker->next) {
+  LISTBASE_FOREACH (TimeMarker *, marker, markers) {
     if (action == SEL_SELECT) {
       marker->flag |= SELECT;
     }
@@ -599,14 +599,14 @@ void ED_markers_draw(const bContext *C, int flag)
   const uiFontStyle *fstyle = UI_FSTYLE_WIDGET;
 
   /* Separate loops in order to draw selected markers on top */
-  for (TimeMarker *marker = markers->first; marker; marker = marker->next) {
+  LISTBASE_FOREACH (TimeMarker *, marker, markers) {
     if ((marker->flag & SELECT) == 0) {
       if (marker_is_in_frame_range(marker, clip_frame_range)) {
         draw_marker(fstyle, marker, cfra, marker->frame * xscale, flag, region->winy);
       }
     }
   }
-  for (TimeMarker *marker = markers->first; marker; marker = marker->next) {
+  LISTBASE_FOREACH (TimeMarker *, marker, markers) {
     if (marker->flag & SELECT) {
       if (marker_is_in_frame_range(marker, clip_frame_range)) {
         draw_marker(fstyle, marker, cfra, marker->frame * xscale, flag, region->winy);
@@ -1156,7 +1156,7 @@ static void MARKER_OT_duplicate(wmOperatorType *ot)
 
 static void deselect_markers(ListBase *markers)
 {
-  for (TimeMarker *marker = markers->first; marker; marker = marker->next) {
+  LISTBASE_FOREACH (TimeMarker *, marker, markers) {
     marker->flag &= ~SELECT;
   }
 }
@@ -1373,7 +1373,7 @@ static int ed_marker_box_select_exec(bContext *C, wmOperator *op)
     ED_markers_deselect_all(markers, SEL_DESELECT);
   }
 
-  for (TimeMarker *marker = markers->first; marker; marker = marker->next) {
+  LISTBASE_FOREACH (TimeMarker *, marker, markers) {
     if (BLI_rctf_isect_x(&rect, marker->frame)) {
       SET_FLAG_FROM_TEST(marker->flag, select, SELECT);
     }
@@ -1646,7 +1646,7 @@ static int ed_marker_camera_bind_exec(bContext *C, wmOperator *op)
     BLI_addtail(markers, marker);
 
     /* deselect all others, so that the user can then move it without problems */
-    for (TimeMarker *m = markers->first; m; m = m->next) {
+    LISTBASE_FOREACH (TimeMarker *, m, markers) {
       if (m != marker) {
         m->flag &= ~SELECT;
       }
diff --git a/source/blender/editors/animation/anim_motion_paths.c b/source/blender/editors/animation/anim_motion_paths.c
index a4ecd346a01..4c10c66dfa6 100644
--- a/source/blender/editors/animation/anim_motion_paths.c
+++ b/source/blender/editors/animation/anim_motion_paths.c
@@ -228,7 +228,7 @@ static void motionpath_get_global_framerange(ListBase *targets, int *r_sfra, int
 {
   *r_sfra = INT_MAX;
   *r_efra = INT_MIN;
-  for (MPathTarget *mpt = targets->first; mpt; mpt = mpt->next) {
+  LISTBASE_FOREACH (MPathTarget *, mpt, targets) {
     *r_sfra = min_ii(*r_sfra, mpt->mpath->start_frame);
     *r_efra = max_ii(*r_efra, mpt->mpath->end_frame);
   }
@@ -348,7 +348,7 @@ static void motionpath_calculate_update_range(MPathTarget *mpt,
 
 static void motionpath_free_free_tree_data(ListBase *targets)
 {
-  for (MPathTarget *mpt = targets->first; mpt; mpt = mpt->next) {
+  LISTBASE_FOREACH (MPathTarget *, mpt, targets) {
     BLI_dlrbTree_free(&mpt->keys);
   }
 }
@@ -412,7 +412,7 @@ void animviz_calc_motionpaths(Depsgraph *depsgraph,
     DEG_make_inactive(depsgraph);
   }
 
-  for (MPathTarget *mpt = targets->first; mpt; mpt = mpt->next) {
+  LISTBASE_FOREACH (MPathTarget *, mpt, targets) {
     mpt->ob_eval = DEG_get_evaluated_object(depsgraph, mpt->ob);
 
     AnimData *adt = BKE_animdata_from_id(&mpt->ob_eval->id);
@@ -492,7 +492,7 @@ void animviz_calc_motionpaths(Depsgraph *depsgraph,
   }
 
   /* clear recalc flags from targets */
-  for (MPathTarget *mpt = targets->first; mpt; mpt = mpt->next) {
+  LISTBASE_FOREACH (MPathTarget *, mpt, targets) {
     bMotionPath *mpath = mpt->mpath;
 
     /* get pointer to animviz settings for each target */
diff --git a/source/blender/editors/animation/keyframes_draw.c b/source/blender/editors/animation/keyframes_draw.c
index eae86d4990c..b921ba039be 100644
--- a/source/blender/editors/animation/keyframes_draw.c
+++ b/source/blender/editors/animation/keyframes_draw.c
@@ -506,14 +506,14 @@ static void update_keyblocks(DLRBT_Tree *keys, BezTriple *bezt, int bezt_len)
   /* Find the curve count */
   int max_curve = 0;
 
-  for (ActKeyColumn *col = keys->first; col; col = col->next) {
+  LISTBASE_FOREACH (ActKeyColumn *, col, keys) {
     max_curve = MAX2(max_curve, col->totcurve);
   }
 
   /* Propagate blocks to inserted keys */
   ActKeyColumn *prev_ready = NULL;
 
-  for (ActKeyColumn *col = keys->first; col; col = col->next) {
+  LISTBASE_FOREACH (ActKeyColumn *, col, keys) {
     /* Pre-existing column. */
     if (col->totcurve > 0) {
       prev_ready = col;
@@ -731,7 +731,7 @@ static void draw_keylist(View2D *v2d,
     ipo_color_mix[3] *= 0.5f;
 
     uint block_len = 0;
-    for (ActKeyColumn *ab = keys->first; ab; ab = ab->next) {
+    LISTBASE_FOREACH (ActKeyColumn *, ab, keys) {
       if (actkeyblock_get_valid_hold(ab)) {
         block_len++;
       }
@@ -747,7 +747,7 @@ static void draw_keylist(View2D *v2d,
       immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR);
 
       immBegin(GPU_PRIM_TRIS, 6 * block_len);
-      for (ActKeyColumn *ab = keys->first; ab; ab = ab->next) {
+      LISTBASE_FOREACH (ActKeyColumn *, ab, keys) {
         int valid_hold = actkeyblock_get_valid_hold(ab);
         if (valid_hold != 0) {
           if ((valid_hold & ACTKEYBLOCK_FLAG_STATIC_HOLD) == 0) {
@@ -792,7 +792,7 @@ static void draw_keylist(View2D *v2d,
   if (keys) {
     /* count keys */
     uint key_len = 0;
-    for (ActKeyColumn *ak = keys->first; ak; ak = ak->next) {
+    LISTBASE_FOREACH (ActKeyColumn *, ak, keys) {
       /* Optimization: if keyframe doesn't appear within 5 units (screenspace)
        * in visible area, don't draw.
        * This might give some improvements,
@@ -823,7 +823,7 @@ static void draw_keylist(View2D *v2d,
 
       short handle_type = KEYFRAME_HANDLE_NONE, extreme_type = KEYFRAME_EXTREME_NONE;
 
-      for (ActKeyColumn *ak = keys->first; ak; ak = ak->next) {
+      LISTBASE_FOREACH (ActKeyColumn *, ak, keys) {
         if (IN_RANGE_INCL(ak->cfra, v2d->cur.xmin, v2d->cur.xmax)) {
           if (show_ipo) {
             handle_type = ak->handle_type;
@@ -1154,7 +1154,7 @@ void cachefile_to_keylist(bDopeSheet *ads,
   ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
 
   /* loop through each F-Curve, grabbing the keyframes */
-  for (bAnimListElem *ale = anim_data.first; ale; ale = ale->next) {
+  LISTBASE_FOREACH (bAnimListElem *, ale, &anim_data) {
     fcurve_to_keylist(ale->adt, ale->data, keys, saction_flag);
   }
 
diff --git a/source/blender/editors/armature/armature_add.c b/source/blender/editors/armature/armature_add.c
index 1105633f47e..f6875a6e158 100644
--- a/source/blender/editors/armature/armature_add.c
+++ b/source/blender/editors/armature/armature_add.c
@@ -341,7 +341,7 @@ void postEditBoneDuplicate(struct ListBase *editbones, Object *ob)
 
   GHash *name_map = BLI_ghash_str_new(__func__);
 
-  for (EditBone *ebone_src = editbones->first; ebone_src; ebone_src = ebone_src->next) {
+  LISTBASE_FOREACH (EditBone *, ebone_src, editbones) {
     EditBone *ebone_dst = ebone_src->temp.ebone;
     if (!ebone_dst) {
       ebone_dst = ED_armature_ebone_get_mirrored(editbones, ebone_src);
@@ -351,7 +351,7 @@ void postEditBoneDuplicate(struct ListBase *editbones, Object *ob)
     }
   }
 
-  for (EditBone *ebone_src = editbones->first; ebone_src; ebone_src = ebone_src->next) {
+  LISTBASE_FOREACH (EditBone *, ebone_src, editbones) {
     EditBone *ebone_dst = ebone_src->temp.ebone;
     if (ebone_dst) {
       bPoseChannel *pchan_src = BKE_pose_channel_find_name(ob->pose, ebone_src->name);
diff --git a/source/blender/editors/armature/armature_edit.c b/source/blender/editors/armature/armature_edit.c
index 9a640952253..8a7afe13a2f 100644
--- a/source/blender/editors/armature/armature_edit.c
+++ b/source/blender/editors/armature/armature_edit.c
@@ -499,7 +499,7 @@ static int armature_roll_clear_exec(bContext *C, wmOperator *op)
     bArmature *arm = ob->data;
     bool changed = false;
 
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_VISIBLE(arm, ebone) && EBONE_EDITABLE(ebone)) {
         /* Roll func is a callback which assumes that all is well. */
         ebone->roll = roll;
@@ -508,7 +508,7 @@ static int armature_roll_clear_exec(bContext *C, wmOperator *op)
     }
 
     if (arm->flag & ARM_MIRROR_EDIT) {
-      for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+      LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
         if ((EBONE_VISIBLE(arm, ebone) && EBONE_EDITABLE(ebone)) == 0) {
           EditBone *ebone_mirr = ED_armature_ebone_get_mirrored(arm->edbo, ebone);
           if (ebone_mirr && (EBONE_VISIBLE(arm, ebone_mirr) && EBONE_EDITABLE(ebone_mirr))) {
@@ -1189,13 +1189,13 @@ static int armature_split_exec(bContext *C, wmOperator *UNUSED(op))
     Object *ob = objects[ob_index];
     bArmature *arm = ob->data;
 
-    for (EditBone *bone = arm->edbo->first; bone; bone = bone->next) {
+    LISTBASE_FOREACH (EditBone *, bone, arm->edbo) {
       if (bone->parent && (bone->flag & BONE_SELECTED) != (bone->parent->flag & BONE_SELECTED)) {
         bone->parent = NULL;
         bone->flag &= ~BONE_CONNECTED;
       }
     }
-    for (EditBone *bone = arm->edbo->first; bone; bone = bone->next) {
+    LISTBASE_FOREACH (EditBone *, bone, arm->edbo) {
       ED_armature_ebone_select_set(bone, (bone->flag & BONE_SELECTED) != 0);
     }
 
@@ -1508,7 +1508,7 @@ static int armature_hide_exec(bContext *C, wmOperator *op)
     bArmature *arm = obedit->data;
     bool changed = false;
 
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_VISIBLE(arm, ebone)) {
         if ((ebone->flag & BONE_SELECTED) != invert) {
           ebone->flag &= ~(BONE_TIPSEL | BONE_SELECTED | BONE_ROOTSEL);
@@ -1567,7 +1567,7 @@ static int armature_reveal_exec(bContext *C, wmOperator *op)
     bArmature *arm = obedit->data;
     bool changed = false;
 
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (arm->layer & ebone->layer) {
         if (ebone->flag & BONE_HIDDEN_A) {
           if (!(ebone->flag & BONE_UNSELECTABLE)) {
diff --git a/source/blender/editors/armature/armature_naming.c b/source/blender/editors/armature/armature_naming.c
index b2c3d951b34..aa1bceb2674 100644
--- a/source/blender/editors/armature/armature_naming.c
+++ b/source/blender/editors/armature/armature_naming.c
@@ -317,8 +317,7 @@ void ED_armature_bone_rename(Main *bmain,
           }
         }
 
-        for (GpencilModifierData *gp_md = ob->greasepencil_modifiers.first; gp_md;
-             gp_md = gp_md->next) {
+        LISTBASE_FOREACH (GpencilModifierData *, gp_md, &ob->greasepencil_modifiers) {
           switch (gp_md->type) {
             case eGpencilModifierType_Armature: {
               ArmatureGpencilModifierData *mmd = (ArmatureGpencilModifierData *)gp_md;
@@ -415,7 +414,7 @@ void ED_armature_bones_flip_names(Main *bmain,
   /* First pass: generate flip names, and blindly rename.
    * If rename did not yield expected result,
    * store both bone's name and expected flipped one into temp list for second pass. */
-  for (LinkData *link = bones_names->first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, bones_names) {
     char name_flip[MAXBONENAME];
     char *name = link->data;
 
@@ -470,7 +469,7 @@ static int armature_flip_names_exec(bContext *C, wmOperator *op)
 
     ListBase bones_names = {NULL};
 
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_VISIBLE(arm, ebone)) {
         if (ebone->flag & BONE_SELECTED) {
           BLI_addtail(&bones_names, BLI_genericNodeN(ebone->name));
@@ -557,7 +556,7 @@ static int armature_autoside_names_exec(bContext *C, wmOperator *op)
       continue;
     }
 
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_EDITABLE(ebone)) {
 
         /* We first need to do the flipped bone, then the original one.
diff --git a/source/blender/editors/armature/armature_relations.c b/source/blender/editors/armature/armature_relations.c
index c592287c967..644e466e904 100644
--- a/source/blender/editors/armature/armature_relations.c
+++ b/source/blender/editors/armature/armature_relations.c
@@ -569,7 +569,7 @@ static void separate_armature_bones(Main *bmain, Object *ob, const bool is_selec
     if (is_select == (EBONE_VISIBLE(arm, curbone) && (curbone->flag & BONE_SELECTED))) {
 
       /* clear the bone->parent var of any bone that had this as its parent  */
-      for (EditBone *ebo = arm->edbo->first; ebo; ebo = ebo->next) {
+      LISTBASE_FOREACH (EditBone *, ebo, arm->edbo) {
         if (ebo->parent == curbone) {
           ebo->parent = NULL;
           /* this is needed to prevent random crashes with in ED_armature_from_edit */
@@ -579,7 +579,7 @@ static void separate_armature_bones(Main *bmain, Object *ob, const bool is_selec
       }
 
       /* clear the pchan->parent var of any pchan that had this as its parent */
-      for (bPoseChannel *pchn = ob->pose->chanbase.first; pchn; pchn = pchn->next) {
+      LISTBASE_FOREACH (bPoseChannel *, pchn, &ob->pose->chanbase) {
         if (pchn->parent == pchan) {
           pchn->parent = NULL;
         }
@@ -630,7 +630,7 @@ static int separate_armature_exec(bContext *C, wmOperator *op)
       bArmature *arm_old = ob_old->data;
       bool has_selected_bone = false;
       bool has_selected_any = false;
-      for (EditBone *ebone = arm_old->edbo->first; ebone; ebone = ebone->next) {
+      LISTBASE_FOREACH (EditBone *, ebone, arm_old->edbo) {
         if (EBONE_VISIBLE(arm_old, ebone)) {
           if (ebone->flag & BONE_SELECTED) {
             has_selected_bone = true;
@@ -836,7 +836,7 @@ static int armature_parent_set_exec(bContext *C, wmOperator *op)
   bool is_active_only_selected = false;
   if (actbone->flag & BONE_SELECTED) {
     is_active_only_selected = true;
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_EDITABLE(ebone) && (ebone->flag & BONE_SELECTED)) {
         if (ebone != actbone) {
           is_active_only_selected = false;
@@ -868,7 +868,7 @@ static int armature_parent_set_exec(bContext *C, wmOperator *op)
      */
 
     /* Parent selected bones to the active one. */
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_EDITABLE(ebone) && (ebone->flag & BONE_SELECTED)) {
         if (ebone != actbone) {
           bone_connect_to_new_parent(arm->edbo, ebone, actbone, val);
@@ -902,7 +902,7 @@ static int armature_parent_set_invoke(bContext *C,
     Object *ob = CTX_data_edit_object(C);
     bArmature *arm = ob->data;
     EditBone *actbone = arm->act_edbone;
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_EDITABLE(ebone) && (ebone->flag & BONE_SELECTED)) {
         if (ebone != actbone) {
           if (ebone->parent != actbone) {
@@ -984,7 +984,7 @@ static int armature_parent_clear_exec(bContext *C, wmOperator *op)
     bArmature *arm = ob->data;
     bool changed = false;
 
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_EDITABLE(ebone)) {
         changed = true;
         break;
diff --git a/source/blender/editors/armature/armature_select.c b/source/blender/editors/armature/armature_select.c
index 700fe14ade6..4b938fb0072 100644
--- a/source/blender/editors/armature/armature_select.c
+++ b/source/blender/editors/armature/armature_select.c
@@ -426,12 +426,12 @@ static bool armature_select_linked_impl(Object *ob, const bool select, const boo
   (((ebone)->flag & BONE_CONNECTED) && \
    ((ebone)->parent ? EBONE_SELECTABLE(arm, (ebone)->parent) : false))
 
-  for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+  LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
     ebone->temp.i = 0;
   }
 
   /* Select parents. */
-  for (EditBone *ebone_iter = arm->edbo->first; ebone_iter; ebone_iter = ebone_iter->next) {
+  LISTBASE_FOREACH (EditBone *, ebone_iter, arm->edbo) {
     if (ebone_iter->temp.i & TOUCH) {
       continue;
     }
@@ -460,7 +460,7 @@ static bool armature_select_linked_impl(Object *ob, const bool select, const boo
   }
 
   /* Select children. */
-  for (EditBone *ebone_iter = arm->edbo->first; ebone_iter; ebone_iter = ebone_iter->next) {
+  LISTBASE_FOREACH (EditBone *, ebone_iter, arm->edbo) {
     /* No need to 'touch' this bone as it won't be walked over when scanning up the chain. */
     if (!CHECK_PARENT(ebone_iter)) {
       continue;
@@ -521,7 +521,7 @@ static int armature_select_linked_exec(bContext *C, wmOperator *op)
     bArmature *arm = ob->data;
 
     bool found = false;
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_VISIBLE(arm, ebone) &&
           (ebone->flag & (BONE_SELECTED | BONE_ROOTSEL | BONE_TIPSEL))) {
         ebone->flag |= BONE_DONE;
@@ -591,7 +591,7 @@ static int armature_select_linked_pick_invoke(bContext *C, wmOperator *op, const
   }
 
   /* Initialize flags. */
-  for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+  LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
     ebone->flag &= ~BONE_DONE;
   }
   ebone_active->flag |= BONE_DONE;
@@ -848,7 +848,7 @@ bool ED_armature_edit_deselect_all(Object *obedit)
 {
   bArmature *arm = obedit->data;
   bool changed = false;
-  for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+  LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
     if (ebone->flag & (BONE_SELECTED | BONE_TIPSEL | BONE_ROOTSEL)) {
       ebone->flag &= ~(BONE_SELECTED | BONE_TIPSEL | BONE_ROOTSEL);
       changed = true;
@@ -861,7 +861,7 @@ bool ED_armature_edit_deselect_all_visible(Object *obedit)
 {
   bArmature *arm = obedit->data;
   bool changed = false;
-  for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+  LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
     /* first and foremost, bone must be visible and selected */
     if (EBONE_VISIBLE(arm, ebone)) {
       if (ebone->flag & (BONE_SELECTED | BONE_TIPSEL | BONE_ROOTSEL)) {
@@ -1138,7 +1138,7 @@ bool ED_armature_edit_select_op_from_tagged(bArmature *arm, const int sel_op)
 
   /* Initialize flags. */
   {
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
 
       /* Flush the parent flag to this bone
        * so we don't need to check the parent when adjusting the selection. */
@@ -1160,7 +1160,7 @@ bool ED_armature_edit_select_op_from_tagged(bArmature *arm, const int sel_op)
   }
 
   /* Apply selection from bone selection flags. */
-  for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+  LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
     if (ebone->temp.i != 0) {
       int is_ignore_flag = ((ebone->temp.i << 16) & (BONESEL_ROOT | BONESEL_TIP));
       int is_inside_flag = (ebone->temp.i & (BONESEL_ROOT | BONESEL_TIP | BONESEL_BONE));
@@ -1180,7 +1180,7 @@ bool ED_armature_edit_select_op_from_tagged(bArmature *arm, const int sel_op)
 
   if (changed) {
     /* Cleanup flags. */
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (ebone->flag & BONE_DONE) {
         SWAP(int, ebone->temp.i, ebone->flag);
         ebone->flag |= BONE_DONE;
@@ -1193,7 +1193,7 @@ bool ED_armature_edit_select_op_from_tagged(bArmature *arm, const int sel_op)
       }
     }
 
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (ebone->flag & BONE_DONE) {
         if ((ebone->flag & BONE_CONNECTED) && ebone->parent) {
           bool is_parent_tip_changed = (ebone->parent->flag & BONE_TIPSEL) !=
@@ -1539,7 +1539,7 @@ static void select_similar_length(bContext *C, const float thresh)
     bArmature *arm = ob->data;
     bool changed = false;
 
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_SELECTABLE(arm, ebone)) {
         const float len_iter = bone_length_squared_worldspace_get(ob, ebone);
         if ((len_iter > len_min) && (len_iter < len_max)) {
@@ -1587,7 +1587,7 @@ static void select_similar_direction(bContext *C, const float thresh)
     bArmature *arm = ob->data;
     bool changed = false;
 
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_SELECTABLE(arm, ebone)) {
         float dir[3];
         bone_direction_worldspace_get(ob, ebone, dir);
@@ -1621,7 +1621,7 @@ static void select_similar_layer(bContext *C)
     bArmature *arm = ob->data;
     bool changed = false;
 
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_SELECTABLE(arm, ebone)) {
         if (ebone->layer & ebone_act->layer) {
           ED_armature_ebone_select_set(ebone, true);
@@ -1661,7 +1661,7 @@ static void select_similar_prefix(bContext *C)
     bool changed = false;
 
     /* Find matches */
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_SELECTABLE(arm, ebone)) {
         char prefix_other[MAXBONENAME];
         BLI_string_split_prefix(ebone->name, prefix_other, body_tmp, sizeof(ebone->name));
@@ -1703,7 +1703,7 @@ static void select_similar_suffix(bContext *C)
     bool changed = false;
 
     /* Find matches */
-    for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
       if (EBONE_SELECTABLE(arm, ebone)) {
         char suffix_other[MAXBONENAME];
         BLI_string_split_suffix(ebone->name, body_tmp, suffix_other, sizeof(ebone->name));
@@ -1738,7 +1738,7 @@ static void select_similar_data_pchan(bContext *C, const size_t bytes_size, cons
   }
 
   const char *data_active = (const char *)POINTER_OFFSET(pchan_active, offset);
-  for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+  LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
     if (EBONE_SELECTABLE(arm, ebone)) {
       const bPoseChannel *pchan = BKE_pose_channel_find_name(obedit->pose, ebone->name);
       if (pchan) {
@@ -1773,11 +1773,11 @@ static void select_similar_children(bContext *C)
   bArmature *arm = obedit->data;
   EditBone *ebone_act = CTX_data_active_bone(C);
 
-  for (EditBone *ebone_iter = arm->edbo->first; ebone_iter; ebone_iter = ebone_iter->next) {
+  LISTBASE_FOREACH (EditBone *, ebone_iter, arm->edbo) {
     ebone_iter->temp.ebone = ebone_iter->parent;
   }
 
-  for (EditBone *ebone_iter = arm->edbo->first; ebone_iter; ebone_iter = ebone_iter->next) {
+  LISTBASE_FOREACH (EditBone *, ebone_iter, arm->edbo) {
     is_ancestor(ebone_iter, ebone_act);
 
     if (ebone_iter->temp.ebone == ebone_act && EBONE_SELECTABLE(arm, ebone_iter)) {
@@ -1795,7 +1795,7 @@ static void select_similar_children_immediate(bContext *C)
   bArmature *arm = obedit->data;
   EditBone *ebone_act = CTX_data_active_bone(C);
 
-  for (EditBone *ebone_iter = arm->edbo->first; ebone_iter; ebone_iter = ebone_iter->next) {
+  LISTBASE_FOREACH (EditBone *, ebone_iter, arm->edbo) {
     if (ebone_iter->parent == ebone_act && EBONE_SELECTABLE(arm, ebone_iter)) {
       ED_armature_ebone_select_set(ebone_iter, true);
     }
@@ -1815,7 +1815,7 @@ static void select_similar_siblings(bContext *C)
     return;
   }
 
-  for (EditBone *ebone_iter = arm->edbo->first; ebone_iter; ebone_iter = ebone_iter->next) {
+  LISTBASE_FOREACH (EditBone *, ebone_iter, arm->edbo) {
     if (ebone_iter->parent == ebone_act->parent && EBONE_SELECTABLE(arm, ebone_iter)) {
       ED_armature_ebone_select_set(ebone_iter, true);
     }
diff --git a/source/blender/editors/armature/armature_utils.c b/source/blender/editors/armature/armature_utils.c
index fe456324d9c..cf7f6699e5e 100644
--- a/source/blender/editors/armature/armature_utils.c
+++ b/source/blender/editors/armature/armature_utils.c
@@ -92,7 +92,7 @@ void ED_armature_edit_validate_active(struct bArmature *arm)
 void ED_armature_edit_refresh_layer_used(bArmature *arm)
 {
   arm->layer_used = 0;
-  for (EditBone *ebo = arm->edbo->first; ebo; ebo = ebo->next) {
+  LISTBASE_FOREACH (EditBone *, ebo, arm->edbo) {
     arm->layer_used |= ebo->layer;
   }
 }
@@ -142,7 +142,7 @@ void bone_free(bArmature *arm, EditBone *bone)
   }
 
   /* Clear references from other edit bones. */
-  for (EditBone *ebone = arm->edbo->first; ebone; ebone = ebone->next) {
+  LISTBASE_FOREACH (EditBone *, ebone, arm->edbo) {
     if (ebone->bbone_next == bone) {
       ebone->bbone_next = NULL;
     }
@@ -472,7 +472,7 @@ void ED_armature_ebone_transform_mirror_update(bArmature *arm, EditBone *ebo, bo
 void ED_armature_edit_transform_mirror_update(Object *obedit)
 {
   bArmature *arm = obedit->data;
-  for (EditBone *ebo = arm->edbo->first; ebo; ebo = ebo->next) {
+  LISTBASE_FOREACH (EditBone *, ebo, arm->edbo) {
     ED_armature_ebone_transform_mirror_update(arm, ebo, true);
   }
 }
@@ -580,7 +580,7 @@ static EditBone *make_boneList_recursive(ListBase *edbo,
 static EditBone *find_ebone_link(ListBase *edbo, Bone *link)
 {
   if (link != NULL) {
-    for (EditBone *ebone = edbo->first; ebone; ebone = ebone->next) {
+    LISTBASE_FOREACH (EditBone *, ebone, edbo) {
       if (ebone->temp.bone == link) {
         return ebone;
       }
@@ -596,7 +596,7 @@ EditBone *make_boneList(ListBase *edbo, ListBase *bones, struct Bone *actBone)
 
   EditBone *active = make_boneList_recursive(edbo, bones, NULL, actBone);
 
-  for (EditBone *ebone = edbo->first; ebone; ebone = ebone->next) {
+  LISTBASE_FOREACH (EditBone *, ebone, edbo) {
     Bone *bone = ebone->temp.bone;
 
     /* Convert custom B-Bone handle links. */
diff --git a/source/blender/editors/armature/editarmature_undo.c b/source/blender/editors/armature/editarmature_undo.c
index d3eeb311863..a3a73f8d509 100644
--- a/source/blender/editors/armature/editarmature_undo.c
+++ b/source/blender/editors/armature/editarmature_undo.c
@@ -95,7 +95,7 @@ static void *undoarm_from_editarm(UndoArmature *uarm, bArmature *arm)
 
   ED_armature_ebone_listbase_temp_clear(&uarm->lb);
 
-  for (EditBone *ebone = uarm->lb.first; ebone; ebone = ebone->next) {
+  LISTBASE_FOREACH (EditBone *, ebone, &uarm->lb) {
     uarm->undo_size += sizeof(EditBone);
   }
 
diff --git a/source/blender/editors/armature/pose_select.c b/source/blender/editors/armature/pose_select.c
index f29900b0760..8df4f6b7dfc 100644
--- a/source/blender/editors/armature/pose_select.c
+++ b/source/blender/editors/armature/pose_select.c
@@ -323,7 +323,7 @@ bool ED_pose_deselect_all(Object *ob, int select_mode, const bool ignore_visibil
 static bool ed_pose_is_any_selected(Object *ob, bool ignore_visibility)
 {
   bArmature *arm = ob->data;
-  for (bPoseChannel *pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
+  LISTBASE_FOREACH (bPoseChannel *, pchan, &ob->pose->chanbase) {
     if (ignore_visibility || PBONE_VISIBLE(arm, pchan->bone)) {
       if (pchan->bone->flag & BONE_SELECTED) {
         return true;
diff --git a/source/blender/editors/armature/pose_transform.c b/source/blender/editors/armature/pose_transform.c
index 3be5e033e00..31c89ca9f43 100644
--- a/source/blender/editors/armature/pose_transform.c
+++ b/source/blender/editors/armature/pose_transform.c
@@ -333,7 +333,7 @@ static void applyarmature_process_selected_recursive(bArmature *arm,
     pstate = &new_pstate;
   }
 
-  for (Bone *child = bone->childbase.first; child; child = child->next) {
+  LISTBASE_FOREACH (Bone *, child, &bone->childbase) {
     applyarmature_process_selected_recursive(arm, pose, pose_eval, child, selected, pstate);
   }
 }
@@ -389,7 +389,7 @@ static int apply_armature_pose2bones_exec(bContext *C, wmOperator *op)
 
   if (use_selected) {
     /* The selected only mode requires a recursive walk to handle parent-child relations. */
-    for (Bone *bone = arm->bonebase.first; bone; bone = bone->next) {
+    LISTBASE_FOREACH (Bone *, bone, &arm->bonebase) {
       applyarmature_process_selected_recursive(
           arm, pose, ob_eval->pose, bone, &selected_bones, NULL);
     }
diff --git a/source/blender/editors/curve/editcurve.c b/source/blender/editors/curve/editcurve.c
index 45e278d691c..8984c090a0e 100644
--- a/source/blender/editors/curve/editcurve.c
+++ b/source/blender/editors/curve/editcurve.c
@@ -5168,7 +5168,7 @@ static bool ed_editcurve_extrude(Curve *cu, EditNurb *editnurb, View3D *v3d)
   BKE_curve_nurb_vert_active_get(cu, &cu_actnu, &cu_actvert.p);
   int act_offset = 0;
 
-  for (Nurb *nu = editnurb->nurbs.first; nu; nu = nu->next) {
+  LISTBASE_FOREACH (Nurb *, nu, &editnurb->nurbs) {
     BLI_assert(nu->pntsu > 0);
     int i;
     int pnt_len = nu->pntsu;
@@ -6775,7 +6775,7 @@ static int shade_smooth_exec(bContext *C, wmOperator *op)
       continue;
     }
 
-    for (Nurb *nu = editnurb->first; nu; nu = nu->next) {
+    LISTBASE_FOREACH (Nurb *, nu, editnurb) {
       if (ED_curve_nurb_select_check(v3d, nu)) {
         if (!clear) {
           nu->flag |= CU_SMOOTH;
diff --git a/source/blender/editors/curve/editcurve_select.c b/source/blender/editors/curve/editcurve_select.c
index e009add1acf..9cf61d02677 100644
--- a/source/blender/editors/curve/editcurve_select.c
+++ b/source/blender/editors/curve/editcurve_select.c
@@ -199,7 +199,7 @@ bool ED_curve_nurb_select_all(const Nurb *nu)
 bool ED_curve_select_all(EditNurb *editnurb)
 {
   bool changed = false;
-  for (Nurb *nu = editnurb->nurbs.first; nu; nu = nu->next) {
+  LISTBASE_FOREACH (Nurb *, nu, &editnurb->nurbs) {
     changed |= ED_curve_nurb_select_all(nu);
   }
   return changed;
@@ -258,7 +258,7 @@ bool ED_curve_select_check(View3D *v3d, struct EditNurb *editnurb)
 bool ED_curve_deselect_all(EditNurb *editnurb)
 {
   bool changed = false;
-  for (Nurb *nu = editnurb->nurbs.first; nu; nu = nu->next) {
+  LISTBASE_FOREACH (Nurb *, nu, &editnurb->nurbs) {
     changed |= ED_curve_nurb_deselect_all(nu);
   }
   return changed;
diff --git a/source/blender/editors/gpencil/gpencil_armature.c b/source/blender/editors/gpencil/gpencil_armature.c
index 9566495715a..1528c448c0b 100644
--- a/source/blender/editors/gpencil/gpencil_armature.c
+++ b/source/blender/editors/gpencil/gpencil_armature.c
@@ -543,7 +543,7 @@ static bool gpencil_generate_weights_poll(bContext *C)
   }
 
   /* need some armature in the view layer */
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     if (base->object->type == OB_ARMATURE) {
       return true;
     }
@@ -630,7 +630,7 @@ static const EnumPropertyItem *gpencil_armatures_enum_itemf(bContext *C,
   RNA_enum_item_add(&item, &totitem, &item_tmp);
   i++;
 
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     Object *ob = base->object;
     if (ob->type == OB_ARMATURE) {
       item_tmp.identifier = item_tmp.name = ob->id.name + 2;
diff --git a/source/blender/editors/gpencil/gpencil_data.c b/source/blender/editors/gpencil/gpencil_data.c
index 24c3e9a0635..1e49195140c 100644
--- a/source/blender/editors/gpencil/gpencil_data.c
+++ b/source/blender/editors/gpencil/gpencil_data.c
@@ -522,7 +522,7 @@ static bool gp_layer_duplicate_object_poll(bContext *C)
   }
 
   /* check there are more grease pencil objects */
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     if ((base->object != ob) && (base->object->type == OB_GPENCIL)) {
       return true;
     }
@@ -571,7 +571,7 @@ static int gp_layer_duplicate_object_exec(bContext *C, wmOperator *op)
   gpl_dst->opacity = gpl_src->opacity;
 
   /* Create all frames. */
-  for (bGPDframe *gpf_src = gpl_src->frames.first; gpf_src; gpf_src = gpf_src->next) {
+  LISTBASE_FOREACH (bGPDframe *, gpf_src, &gpl_src->frames) {
 
     if ((mode == GP_LAYER_COPY_OBJECT_ACT_FRAME) && (gpf_src != gpl_src->actframe)) {
       continue;
@@ -581,7 +581,7 @@ static int gp_layer_duplicate_object_exec(bContext *C, wmOperator *op)
     bGPDframe *gpf_dst = BKE_gpencil_frame_addnew(gpl_dst, gpf_src->framenum);
 
     /* Copy strokes. */
-    for (bGPDstroke *gps_src = gpf_src->strokes.first; gps_src; gps_src = gps_src->next) {
+    LISTBASE_FOREACH (bGPDstroke *, gps_src, &gpf_src->strokes) {
 
       /* Make copy of source stroke. */
       bGPDstroke *gps_dst = BKE_gpencil_stroke_duplicate(gps_src, true);
@@ -1184,12 +1184,12 @@ static int gp_merge_layer_exec(bContext *C, wmOperator *op)
 
   /* Collect frames of gpl_current in hash table to avoid O(n^2) lookups */
   GHash *gh_frames_cur = BLI_ghash_int_new_ex(__func__, 64);
-  for (bGPDframe *gpf = gpl_current->frames.first; gpf; gpf = gpf->next) {
+  LISTBASE_FOREACH (bGPDframe *, gpf, &gpl_current->frames) {
     BLI_ghash_insert(gh_frames_cur, POINTER_FROM_INT(gpf->framenum), gpf);
   }
 
   /* read all frames from next layer and add any missing in current layer */
-  for (bGPDframe *gpf = gpl_next->frames.first; gpf; gpf = gpf->next) {
+  LISTBASE_FOREACH (bGPDframe *, gpf, &gpl_next->frames) {
     /* try to find frame in current layer */
     bGPDframe *frame = BLI_ghash_lookup(gh_frames_cur, POINTER_FROM_INT(gpf->framenum));
     if (!frame) {
@@ -1439,7 +1439,7 @@ static int gp_stroke_arrange_exec(bContext *C, wmOperator *op)
           switch (direction) {
             /* Bring to Front */
             case GP_STROKE_MOVE_TOP:
-              for (LinkData *link = selected.first; link; link = link->next) {
+              LISTBASE_FOREACH (LinkData *, link, &selected) {
                 gps = link->data;
                 BLI_remlink(&gpf->strokes, gps);
                 BLI_addtail(&gpf->strokes, gps);
@@ -1454,7 +1454,7 @@ static int gp_stroke_arrange_exec(bContext *C, wmOperator *op)
               break;
             /* Send Backward */
             case GP_STROKE_MOVE_DOWN:
-              for (LinkData *link = selected.first; link; link = link->next) {
+              LISTBASE_FOREACH (LinkData *, link, &selected) {
                 gps = link->data;
                 BLI_listbase_link_move(&gpf->strokes, gps, -1);
               }
@@ -2529,7 +2529,7 @@ static void joined_gpencil_fix_animdata_cb(ID *id, FCurve *fcu, void *user_data)
   /* Fix driver targets */
   if (fcu->driver) {
     /* Fix driver references to invalid ID's */
-    for (DriverVar *dvar = fcu->driver->variables.first; dvar; dvar = dvar->next) {
+    LISTBASE_FOREACH (DriverVar *, dvar, &fcu->driver->variables) {
       /* Only change the used targets, since the others will need fixing manually anyway. */
       DRIVER_TARGETS_USED_LOOPER_BEGIN (dvar) {
         /* Change the ID's used. */
@@ -2620,7 +2620,7 @@ int ED_gpencil_join_objects_exec(bContext *C, wmOperator *op)
         bGPdata *gpd_src = ob_iter->data;
 
         /* Apply all GP modifiers before */
-        for (GpencilModifierData *md = ob_iter->greasepencil_modifiers.first; md; md = md->next) {
+        LISTBASE_FOREACH (GpencilModifierData *, md, &ob_iter->greasepencil_modifiers) {
           const GpencilModifierTypeInfo *mti = BKE_gpencil_modifierType_getInfo(md->type);
           if (mti->bakeModifier) {
             mti->bakeModifier(bmain, depsgraph, md, ob_iter);
@@ -2629,7 +2629,7 @@ int ED_gpencil_join_objects_exec(bContext *C, wmOperator *op)
 
         /* copy vertex groups to the base one's */
         int old_idx = 0;
-        for (bDeformGroup *dg = ob_iter->defbase.first; dg; dg = dg->next) {
+        LISTBASE_FOREACH (bDeformGroup *, dg, &ob_iter->defbase) {
           bDeformGroup *vgroup = MEM_dupallocN(dg);
           int idx = BLI_listbase_count(&ob_active->defbase);
           BKE_object_defgroup_unique_name(vgroup, ob_active);
@@ -2681,7 +2681,7 @@ int ED_gpencil_join_objects_exec(bContext *C, wmOperator *op)
         mul_m3_v3(imat, offset_global);
         mul_v3_m3v3(offset_local, imat, offset_global);
 
-        for (bGPDlayer *gpl_src = gpd_src->layers.first; gpl_src; gpl_src = gpl_src->next) {
+        LISTBASE_FOREACH (bGPDlayer *, gpl_src, &gpd_src->layers) {
           bGPDlayer *gpl_new = BKE_gpencil_layer_duplicate(gpl_src);
           float diff_mat[4][4];
           float inverse_diff_mat[4][4];
@@ -2691,7 +2691,7 @@ int ED_gpencil_join_objects_exec(bContext *C, wmOperator *op)
           invert_m4_m4(inverse_diff_mat, diff_mat);
 
           Material *ma_src = NULL;
-          for (bGPDframe *gpf = gpl_new->frames.first; gpf; gpf = gpf->next) {
+          LISTBASE_FOREACH (bGPDframe *, gpf, &gpl_new->frames) {
             LISTBASE_FOREACH (bGPDstroke *, gps, &gpf->strokes) {
 
               /* Reassign material. Look old material and try to find in destination. */
diff --git a/source/blender/editors/gpencil/gpencil_edit.c b/source/blender/editors/gpencil/gpencil_edit.c
index 14fd54bf287..947da9e7877 100644
--- a/source/blender/editors/gpencil/gpencil_edit.c
+++ b/source/blender/editors/gpencil/gpencil_edit.c
@@ -1333,7 +1333,7 @@ static int gp_strokes_copy_exec(bContext *C, wmOperator *op)
   if (gp_strokes_copypastebuf.first) {
     gp_strokes_copypastebuf_colors = BLI_ghash_int_new("GPencil CopyBuf Colors");
     GHash *ma_to_name = gp_strokes_copypastebuf_colors_material_to_name_create(bmain);
-    for (bGPDstroke *gps = gp_strokes_copypastebuf.first; gps; gps = gps->next) {
+    LISTBASE_FOREACH (bGPDstroke *, gps, &gp_strokes_copypastebuf) {
       if (ED_gpencil_stroke_can_use(C, gps)) {
         Material *ma = BKE_object_material_get(ob, gps->mat_nr + 1);
         /* Avoid default material. */
diff --git a/source/blender/editors/gpencil/gpencil_ops_versioning.c b/source/blender/editors/gpencil/gpencil_ops_versioning.c
index 96146c60acb..2dd98bb8df1 100644
--- a/source/blender/editors/gpencil/gpencil_ops_versioning.c
+++ b/source/blender/editors/gpencil/gpencil_ops_versioning.c
@@ -117,9 +117,8 @@ static int gpencil_convert_old_files_exec(bContext *C, wmOperator *op)
     DEG_relations_tag_update(bmain); /* added object */
 
     /* convert grease pencil palettes (version >= 2.78)  to materials and weights */
-    for (const bGPDpalette *palette = gpd->palettes.first; palette; palette = palette->next) {
-      for (bGPDpalettecolor *palcolor = palette->colors.first; palcolor;
-           palcolor = palcolor->next) {
+    LISTBASE_FOREACH (const bGPDpalette *, palette, &gpd->palettes) {
+      LISTBASE_FOREACH (bGPDpalettecolor *, palcolor, &palette->colors) {
 
         /* create material slot */
         Material *ma = BKE_gpencil_object_material_new(bmain, ob, palcolor->info, NULL);
@@ -168,9 +167,8 @@ static int gpencil_convert_old_files_exec(bContext *C, wmOperator *op)
   }
 
   if (is_annotation) {
-    for (const bGPDpalette *palette = gpd->palettes.first; palette; palette = palette->next) {
-      for (bGPDpalettecolor *palcolor = palette->colors.first; palcolor;
-           palcolor = palcolor->next) {
+    LISTBASE_FOREACH (const bGPDpalette *, palette, &gpd->palettes) {
+      LISTBASE_FOREACH (bGPDpalettecolor *, palcolor, &palette->colors) {
         /* fix layers */
         LISTBASE_FOREACH (bGPDlayer *, gpl, &gpd->layers) {
           /* unlock/unhide layer */
diff --git a/source/blender/editors/gpencil/gpencil_utils.c b/source/blender/editors/gpencil/gpencil_utils.c
index 0048811d53a..3d571773bc8 100644
--- a/source/blender/editors/gpencil/gpencil_utils.c
+++ b/source/blender/editors/gpencil/gpencil_utils.c
@@ -2187,7 +2187,7 @@ int ED_gpencil_select_stroke_segment(bGPDlayer *gpl,
 
   /* Save list of strokes to check */
   int totstrokes = 0;
-  for (bGPDstroke *gps_iter = gpf->strokes.first; gps_iter; gps_iter = gps_iter->next) {
+  LISTBASE_FOREACH (bGPDstroke *, gps_iter, &gpf->strokes) {
     if (gps_iter->totpoints < 2) {
       continue;
     }
diff --git a/source/blender/editors/interface/interface.c b/source/blender/editors/interface/interface.c
index 11dc8b3b8b4..339124db355 100644
--- a/source/blender/editors/interface/interface.c
+++ b/source/blender/editors/interface/interface.c
@@ -261,7 +261,7 @@ void ui_region_to_window(const ARegion *region, int *x, int *y)
 static void ui_update_flexible_spacing(const ARegion *region, uiBlock *block)
 {
   int sepr_flex_len = 0;
-  for (uiBut *but = block->buttons.first; but; but = but->next) {
+  LISTBASE_FOREACH (uiBut *, but, &block->buttons) {
     if (but->type == UI_BTYPE_SEPR_SPACER) {
       sepr_flex_len++;
     }
@@ -283,7 +283,7 @@ static void ui_update_flexible_spacing(const ARegion *region, uiBlock *block)
   /* We could get rid of this loop if we agree on a max number of spacer */
   int *spacers_pos = alloca(sizeof(*spacers_pos) * (size_t)sepr_flex_len);
   int i = 0;
-  for (uiBut *but = block->buttons.first; but; but = but->next) {
+  LISTBASE_FOREACH (uiBut *, but, &block->buttons) {
     if (but->type == UI_BTYPE_SEPR_SPACER) {
       ui_but_to_pixelrect(&rect, region, block, but);
       spacers_pos[i] = rect.xmax + UI_HEADER_OFFSET;
@@ -294,7 +294,7 @@ static void ui_update_flexible_spacing(const ARegion *region, uiBlock *block)
   const float segment_width = region_width / (float)sepr_flex_len;
   float offset = 0, remaining_space = region_width - buttons_width;
   i = 0;
-  for (uiBut *but = block->buttons.first; but; but = but->next) {
+  LISTBASE_FOREACH (uiBut *, but, &block->buttons) {
     BLI_rctf_translate(&but->rect, offset, 0);
     if (but->type == UI_BTYPE_SEPR_SPACER) {
       /* How much the next block overlap with the current segment */
@@ -898,7 +898,7 @@ bool UI_but_active_only(const bContext *C, ARegion *region, uiBlock *block, uiBu
 bool UI_block_active_only_flagged_buttons(const bContext *C, ARegion *region, uiBlock *block)
 {
   bool done = false;
-  for (uiBut *but = block->buttons.first; but; but = but->next) {
+  LISTBASE_FOREACH (uiBut *, but, &block->buttons) {
     if (but->flag & UI_BUT_ACTIVATE_ON_INIT) {
       but->flag &= ~UI_BUT_ACTIVATE_ON_INIT;
       if (ui_but_is_editable(but)) {
@@ -913,7 +913,7 @@ bool UI_block_active_only_flagged_buttons(const bContext *C, ARegion *region, ui
   if (done) {
     /* Run this in a second pass since it's possible activating the button
      * removes the buttons being looped over. */
-    for (uiBut *but = block->buttons.first; but; but = but->next) {
+    LISTBASE_FOREACH (uiBut *, but, &block->buttons) {
       but->flag &= ~UI_BUT_ACTIVATE_ON_INIT;
     }
   }
@@ -970,7 +970,7 @@ static void ui_menu_block_set_keyaccels(uiBlock *block)
     /* 2 Passes, on for first letter only, second for any letter if first fails
      * fun first pass on all buttons so first word chars always get first priority */
 
-    for (uiBut *but = block->buttons.first; but; but = but->next) {
+    LISTBASE_FOREACH (uiBut *, but, &block->buttons) {
       if (!ELEM(but->type,
                 UI_BTYPE_BUT,
                 UI_BTYPE_BUT_MENU,
@@ -1663,7 +1663,7 @@ static void ui_but_predefined_extra_operator_icons_add(uiBut *but)
   }
 
   if (optype) {
-    for (uiButExtraOpIcon *op_icon = but->extra_op_icons.first; op_icon; op_icon = op_icon->next) {
+    LISTBASE_FOREACH (uiButExtraOpIcon *, op_icon, &but->extra_op_icons) {
       if ((op_icon->optype_params->optype == optype) && (op_icon->icon == icon)) {
         /* Don't add the same operator icon twice (happens if button is kept alive while active).
          */
@@ -1934,7 +1934,7 @@ static void ui_block_message_subscribe(ARegion *region, struct wmMsgBus *mbus, u
 {
   uiBut *but_prev = NULL;
   /* possibly we should keep the region this block is contained in? */
-  for (uiBut *but = block->buttons.first; but; but = but->next) {
+  LISTBASE_FOREACH (uiBut *, but, &block->buttons) {
     if (but->rnapoin.type && but->rnaprop) {
       /* quick check to avoid adding buttons representing a vector, multiple times. */
       if ((but_prev && (but_prev->rnaprop == but->rnaprop) &&
@@ -1959,7 +1959,7 @@ static void ui_block_message_subscribe(ARegion *region, struct wmMsgBus *mbus, u
 
 void UI_region_message_subscribe(ARegion *region, struct wmMsgBus *mbus)
 {
-  for (uiBlock *block = region->uiblocks.first; block; block = block->next) {
+  LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
     ui_block_message_subscribe(region, mbus, block);
   }
 }
@@ -3274,7 +3274,7 @@ void UI_blocklist_update_window_matrix(const bContext *C, const ListBase *lb)
   ARegion *region = CTX_wm_region(C);
   wmWindow *window = CTX_wm_window(C);
 
-  for (uiBlock *block = lb->first; block; block = block->next) {
+  LISTBASE_FOREACH (uiBlock *, block, lb) {
     if (block->active) {
       ui_update_window_matrix(window, region, block);
     }
@@ -3283,7 +3283,7 @@ void UI_blocklist_update_window_matrix(const bContext *C, const ListBase *lb)
 
 void UI_blocklist_draw(const bContext *C, const ListBase *lb)
 {
-  for (uiBlock *block = lb->first; block; block = block->next) {
+  LISTBASE_FOREACH (uiBlock *, block, lb) {
     if (block->active) {
       UI_block_draw(C, block);
     }
diff --git a/source/blender/editors/interface/interface_eyedropper_gpencil_color.c b/source/blender/editors/interface/interface_eyedropper_gpencil_color.c
index 925e9fdd6f9..3d32ede60c2 100644
--- a/source/blender/editors/interface/interface_eyedropper_gpencil_color.c
+++ b/source/blender/editors/interface/interface_eyedropper_gpencil_color.c
@@ -212,7 +212,7 @@ static void eyedropper_add_palette_color(bContext *C, float col_conv[4])
   }
   /* Check if the color exist already. */
   Palette *palette = paint->palette;
-  for (PaletteColor *palcolor = palette->colors.first; palcolor; palcolor = palcolor->next) {
+  LISTBASE_FOREACH (PaletteColor *, palcolor, &palette->colors) {
     if (compare_v3v3(palcolor->rgb, col_conv, 0.01f)) {
       return;
     }
diff --git a/source/blender/editors/interface/interface_handlers.c b/source/blender/editors/interface/interface_handlers.c
index 04169b7d6dc..2b2d91f3a32 100644
--- a/source/blender/editors/interface/interface_handlers.c
+++ b/source/blender/editors/interface/interface_handlers.c
@@ -1272,7 +1272,7 @@ static void ui_multibut_states_create(uiBut *but_active, uiHandleButtonData *dat
 
   data->multi_data.bs_mbuts = UI_butstore_create(but_active->block);
 
-  for (uiBut *but = but_active->block->buttons.first; but; but = but->next) {
+  LISTBASE_FOREACH (uiBut *, but, &but_active->block->buttons) {
     if (but->flag & UI_BUT_DRAG_MULTI) {
       ui_multibut_add(data, but);
     }
@@ -9241,7 +9241,7 @@ static void ui_menu_scroll_apply_offset_y(ARegion *region, uiBlock *block, float
     if (dy < 0.0f) {
       /* Stop at top item, extra 0.5 UI_UNIT_Y makes it snap nicer. */
       float ymax = -FLT_MAX;
-      for (uiBut *bt = block->buttons.first; bt; bt = bt->next) {
+      LISTBASE_FOREACH (uiBut *, bt, &block->buttons) {
         ymax = max_ff(ymax, bt->rect.ymax);
       }
       if (ymax + dy - UI_UNIT_Y * 0.5f < block->rect.ymax - UI_MENU_SCROLL_PAD) {
@@ -9251,7 +9251,7 @@ static void ui_menu_scroll_apply_offset_y(ARegion *region, uiBlock *block, float
     else {
       /* Stop at bottom item, extra 0.5 UI_UNIT_Y makes it snap nicer. */
       float ymin = FLT_MAX;
-      for (uiBut *bt = block->buttons.first; bt; bt = bt->next) {
+      LISTBASE_FOREACH (uiBut *, bt, &block->buttons) {
         ymin = min_ff(ymin, bt->rect.ymin);
       }
       if (ymin + dy + UI_UNIT_Y * 0.5f > block->rect.ymin + UI_MENU_SCROLL_PAD) {
@@ -9264,7 +9264,7 @@ static void ui_menu_scroll_apply_offset_y(ARegion *region, uiBlock *block, float
   block->handle->scrolloffset += dy;
 
   /* apply scroll offset */
-  for (uiBut *bt = block->buttons.first; bt; bt = bt->next) {
+  LISTBASE_FOREACH (uiBut *, bt, &block->buttons) {
     bt->rect.ymin += dy;
     bt->rect.ymax += dy;
   }
@@ -9345,7 +9345,7 @@ static bool ui_menu_scroll_step(ARegion *region, uiBlock *block, const int scrol
 
 static void ui_region_auto_open_clear(ARegion *region)
 {
-  for (uiBlock *block = region->uiblocks.first; block; block = block->next) {
+  LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
     block->auto_open = false;
   }
 }
@@ -10984,7 +10984,7 @@ void UI_screen_free_active_but(const bContext *C, bScreen *screen)
 
   ED_screen_areas_iter(win, screen, area)
   {
-    for (ARegion *region = area->regionbase.first; region; region = region->next) {
+    LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
       uiBut *but = ui_region_find_active_but(region);
       if (but) {
         uiHandleButtonData *data = but->active;
diff --git a/source/blender/editors/interface/interface_layout.c b/source/blender/editors/interface/interface_layout.c
index 6e86b60dc53..a28da678728 100644
--- a/source/blender/editors/interface/interface_layout.c
+++ b/source/blender/editors/interface/interface_layout.c
@@ -2897,7 +2897,7 @@ void uiItemPopoverPanelFromGroup(uiLayout *layout,
     return;
   }
 
-  for (PanelType *pt = art->paneltypes.first; pt; pt = pt->next) {
+  LISTBASE_FOREACH (PanelType *, pt, &art->paneltypes) {
     /* Causes too many panels, check context. */
     if (pt->parent_id[0] == '\0') {
       if (/* (*context == '\0') || */ STREQ(pt->context, context)) {
@@ -5352,7 +5352,7 @@ static void ui_paneltype_draw_impl(bContext *C, PanelType *pt, uiLayout *layout,
   MEM_freeN(panel);
 
   /* Draw child panels. */
-  for (LinkData *link = pt->children.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &pt->children) {
     PanelType *child_pt = link->data;
 
     if (child_pt->poll == NULL || child_pt->poll(C, child_pt)) {
diff --git a/source/blender/editors/interface/interface_panel.c b/source/blender/editors/interface/interface_panel.c
index 04d1181a8a1..42179452279 100644
--- a/source/blender/editors/interface/interface_panel.c
+++ b/source/blender/editors/interface/interface_panel.c
@@ -160,7 +160,7 @@ static int panel_aligned(const ScrArea *area, const ARegion *region)
 
 static bool panel_active_animation_changed(ListBase *lb, Panel **pa_animation, bool *no_animation)
 {
-  for (Panel *pa = lb->first; pa; pa = pa->next) {
+  LISTBASE_FOREACH (Panel *, pa, lb) {
     /* Detect panel active flag changes. */
     if (!(pa->type && pa->type->parent)) {
       if ((pa->runtime_flag & PNL_WAS_ACTIVE) && !(pa->runtime_flag & PNL_ACTIVE)) {
@@ -394,7 +394,7 @@ void UI_panel_end(
   pa->blocksizey = height;
 
   /* Compute total panel size including children. */
-  for (Panel *pachild = pa->children.first; pachild; pachild = pachild->next) {
+  LISTBASE_FOREACH (Panel *, pachild, &pa->children) {
     if (pachild->runtime_flag & PNL_ACTIVE) {
       width = max_ii(width, pachild->sizex);
       height += get_panel_real_size_y(pachild);
@@ -441,7 +441,7 @@ static void ui_offset_panel_block(uiBlock *block)
 
   int ofsy = block->panel->sizey - style->panelspace;
 
-  for (uiBut *but = block->buttons.first; but; but = but->next) {
+  LISTBASE_FOREACH (uiBut *, but, &block->buttons) {
     but->rect.ymin += ofsy;
     but->rect.ymax += ofsy;
   }
@@ -1006,7 +1006,7 @@ static void align_sub_panels(Panel *pa)
   /* Position sub panels. */
   int ofsy = pa->ofsy + pa->sizey - pa->blocksizey;
 
-  for (Panel *pachild = pa->children.first; pachild; pachild = pachild->next) {
+  LISTBASE_FOREACH (Panel *, pachild, &pa->children) {
     if (pachild->runtime_flag & PNL_ACTIVE) {
       pachild->ofsx = pa->ofsx;
       pachild->ofsy = ofsy - get_panel_size_y(pachild);
@@ -1200,7 +1200,7 @@ static void panel_list_clear_active(ListBase *lb)
 {
   /* set all panels as inactive, so that at the end we know
    * which ones were used */
-  for (Panel *pa = lb->first; pa; pa = pa->next) {
+  LISTBASE_FOREACH (Panel *, pa, lb) {
     if (pa->runtime_flag & PNL_ACTIVE) {
       pa->runtime_flag = PNL_WAS_ACTIVE;
     }
diff --git a/source/blender/editors/interface/interface_query.c b/source/blender/editors/interface/interface_query.c
index 8ba3e5db426..70b4660e392 100644
--- a/source/blender/editors/interface/interface_query.c
+++ b/source/blender/editors/interface/interface_query.c
@@ -261,7 +261,7 @@ uiBut *ui_but_find_mouse_over_ex(ARegion *region, const int x, const int y, cons
   if (!ui_region_contains_point_px(region, x, y)) {
     return NULL;
   }
-  for (uiBlock *block = region->uiblocks.first; block; block = block->next) {
+  LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
     float mx = x, my = y;
     ui_window_to_block_fl(region, block, &mx, &my);
 
@@ -309,7 +309,7 @@ uiBut *ui_but_find_rect_over(const struct ARegion *region, const rcti *rect_px)
   BLI_rctf_rcti_copy(&rect_px_fl, rect_px);
   uiBut *butover = NULL;
 
-  for (uiBlock *block = region->uiblocks.first; block; block = block->next) {
+  LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
     rctf rect_block;
     ui_window_to_block_rctf(region, block, &rect_block, &rect_px_fl);
 
@@ -340,7 +340,7 @@ uiBut *ui_list_find_mouse_over_ex(ARegion *region, int x, int y)
   if (!ui_region_contains_point_px(region, x, y)) {
     return NULL;
   }
-  for (uiBlock *block = region->uiblocks.first; block; block = block->next) {
+  LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
     float mx = x, my = y;
     ui_window_to_block_fl(region, block, &mx, &my);
     for (uiBut *but = block->buttons.last; but; but = but->prev) {
@@ -517,7 +517,7 @@ uiBlock *ui_block_find_mouse_over_ex(const ARegion *region,
   if (!ui_region_contains_point_px(region, x, y)) {
     return NULL;
   }
-  for (uiBlock *block = region->uiblocks.first; block; block = block->next) {
+  LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
     if (only_clip) {
       if ((block->flag & UI_BLOCK_CLIP_EVENTS) == 0) {
         continue;
@@ -545,8 +545,8 @@ uiBlock *ui_block_find_mouse_over(const ARegion *region, const wmEvent *event, b
 
 uiBut *ui_region_find_active_but(ARegion *region)
 {
-  for (uiBlock *block = region->uiblocks.first; block; block = block->next) {
-    for (uiBut *but = block->buttons.first; but; but = but->next) {
+  LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
+    LISTBASE_FOREACH (uiBut *, but, &block->buttons) {
       if (but->active) {
         return but;
       }
@@ -558,8 +558,8 @@ uiBut *ui_region_find_active_but(ARegion *region)
 
 uiBut *ui_region_find_first_but_test_flag(ARegion *region, int flag_include, int flag_exclude)
 {
-  for (uiBlock *block = region->uiblocks.first; block; block = block->next) {
-    for (uiBut *but = block->buttons.first; but; but = but->next) {
+  LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
+    LISTBASE_FOREACH (uiBut *, but, &block->buttons) {
       if (((but->flag & flag_include) == flag_include) && ((but->flag & flag_exclude) == 0)) {
         return but;
       }
@@ -633,7 +633,7 @@ bool ui_region_contains_rect_px(const ARegion *region, const rcti *rect_px)
 /** Check if the cursor is over any popups. */
 ARegion *ui_screen_region_find_mouse_over_ex(bScreen *screen, int x, int y)
 {
-  for (ARegion *region = screen->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, &screen->regionbase) {
     rcti winrct;
 
     ui_region_winrct_get_no_margin(region, &winrct);
diff --git a/source/blender/editors/interface/interface_region_color_picker.c b/source/blender/editors/interface/interface_region_color_picker.c
index ecdcd575d5c..f9873f8b96f 100644
--- a/source/blender/editors/interface/interface_region_color_picker.c
+++ b/source/blender/editors/interface/interface_region_color_picker.c
@@ -332,7 +332,7 @@ static void ui_popup_close_cb(bContext *UNUSED(C), void *bt1, void *UNUSED(arg))
 static void ui_colorpicker_hide_reveal(uiBlock *block, enum ePickerType colormode)
 {
   /* tag buttons */
-  for (uiBut *bt = block->buttons.first; bt; bt = bt->next) {
+  LISTBASE_FOREACH (uiBut *, bt, &block->buttons) {
     if ((bt->func == ui_colorpicker_rna_cb) && (bt->type == UI_BTYPE_NUM_SLIDER) &&
         (bt->rnaindex != 3)) {
       /* RGB sliders (color circle and alpha are always shown) */
diff --git a/source/blender/editors/interface/interface_region_hud.c b/source/blender/editors/interface/interface_region_hud.c
index a7508894c54..1963c76b96e 100644
--- a/source/blender/editors/interface/interface_region_hud.c
+++ b/source/blender/editors/interface/interface_region_hud.c
@@ -278,11 +278,11 @@ static ARegion *hud_region_add(ScrArea *area)
 
 void ED_area_type_hud_clear(wmWindowManager *wm, ScrArea *area_keep)
 {
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     bScreen *screen = WM_window_get_active_screen(win);
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
       if (area != area_keep) {
-        for (ARegion *region = area->regionbase.first; region; region = region->next) {
+        LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
           if (region->regiontype == RGN_TYPE_HUD) {
             if ((region->flag & RGN_FLAG_HIDDEN) == 0) {
               hud_region_hide(region);
diff --git a/source/blender/editors/interface/interface_region_menu_popup.c b/source/blender/editors/interface/interface_region_menu_popup.c
index dbec8e6d653..a161a449ba0 100644
--- a/source/blender/editors/interface/interface_region_menu_popup.c
+++ b/source/blender/editors/interface/interface_region_menu_popup.c
@@ -669,7 +669,7 @@ void UI_popup_block_close(bContext *C, wmWindow *win, uiBlock *block)
 
       /* In the case we have nested popups,
        * closing one may need to redraw another, see: T48874 */
-      for (ARegion *region = screen->regionbase.first; region; region = region->next) {
+      LISTBASE_FOREACH (ARegion *, region, &screen->regionbase) {
         ED_region_tag_refresh_ui(region);
       }
     }
@@ -678,8 +678,8 @@ void UI_popup_block_close(bContext *C, wmWindow *win, uiBlock *block)
 
 bool UI_popup_block_name_exists(const bScreen *screen, const char *name)
 {
-  for (const ARegion *region = screen->regionbase.first; region; region = region->next) {
-    for (const uiBlock *block = region->uiblocks.first; block; block = block->next) {
+  LISTBASE_FOREACH (const ARegion *, region, &screen->regionbase) {
+    LISTBASE_FOREACH (const uiBlock *, block, &region->uiblocks) {
       if (STREQ(block->name, name)) {
         return true;
       }
diff --git a/source/blender/editors/interface/interface_region_popup.c b/source/blender/editors/interface/interface_region_popup.c
index a51558e4cfe..2ad7e517c60 100644
--- a/source/blender/editors/interface/interface_region_popup.c
+++ b/source/blender/editors/interface/interface_region_popup.c
@@ -118,7 +118,7 @@ static void ui_popup_block_position(wmWindow *window,
     if (block->buttons.first) {
       BLI_rctf_init_minmax(&block->rect);
 
-      for (uiBut *bt = block->buttons.first; bt; bt = bt->next) {
+      LISTBASE_FOREACH (uiBut *, bt, &block->buttons) {
         if (block->content_hints & UI_BLOCK_CONTAINS_SUBMENU_BUT) {
           bt->rect.xmax += UI_MENU_SUBMENU_PADDING;
         }
@@ -294,7 +294,7 @@ static void ui_popup_block_position(wmWindow *window,
   }
 
   /* Apply offset, buttons in window coords. */
-  for (uiBut *bt = block->buttons.first; bt; bt = bt->next) {
+  LISTBASE_FOREACH (uiBut *, bt, &block->buttons) {
     ui_block_to_window_rctf(butregion, but->block, &bt->rect, &bt->rect);
 
     BLI_rctf_translate(&bt->rect, offset_x, offset_y);
@@ -698,7 +698,7 @@ uiBlock *ui_popup_block_refresh(bContext *C,
 
     /* lastly set the buttons at the center of the pie menu, ready for animation */
     if (U.pie_animation_timeout > 0) {
-      for (uiBut *but_iter = block->buttons.first; but_iter; but_iter = but_iter->next) {
+      LISTBASE_FOREACH (uiBut *, but_iter, &block->buttons) {
         if (but_iter->pie_dir != UI_RADIAL_NONE) {
           BLI_rctf_recenter(&but_iter->rect, UNPACK2(block->pie_data.pie_center_spawned));
         }
@@ -742,7 +742,7 @@ uiBlock *ui_popup_block_refresh(bContext *C,
 
     /* apply scroll offset */
     if (handle->scrolloffset != 0.0f) {
-      for (uiBut *bt = block->buttons.first; bt; bt = bt->next) {
+      LISTBASE_FOREACH (uiBut *, bt, &block->buttons) {
         bt->rect.ymin += handle->scrolloffset;
         bt->rect.ymax += handle->scrolloffset;
       }
@@ -846,7 +846,7 @@ void ui_popup_block_free(bContext *C, uiPopupBlockHandle *handle)
    * then close the popover too. We could extend this to other popup types too. */
   ARegion *region = handle->popup_create_vars.butregion;
   if (region != NULL) {
-    for (uiBlock *block = region->uiblocks.first; block; block = block->next) {
+    LISTBASE_FOREACH (uiBlock *, block, &region->uiblocks) {
       if (block->handle && (block->flag & UI_BLOCK_POPOVER) &&
           (block->flag & UI_BLOCK_KEEP_OPEN) == 0) {
         uiPopupBlockHandle *menu = block->handle;
diff --git a/source/blender/editors/interface/interface_region_tooltip.c b/source/blender/editors/interface/interface_region_tooltip.c
index 8b41d92ea74..58a13c6c456 100644
--- a/source/blender/editors/interface/interface_region_tooltip.c
+++ b/source/blender/editors/interface/interface_region_tooltip.c
@@ -319,7 +319,7 @@ static bool ui_tooltip_data_append_from_keymap(bContext *C, uiTooltipData *data,
   const int fields_len_init = data->fields_len;
   char buf[512];
 
-  for (wmKeyMapItem *kmi = keymap->items.first; kmi; kmi = kmi->next) {
+  LISTBASE_FOREACH (wmKeyMapItem *, kmi, &keymap->items) {
     wmOperatorType *ot = WM_operatortype_find(kmi->idname, true);
     if (ot != NULL) {
       /* Tip */
@@ -597,7 +597,7 @@ static uiTooltipData *ui_tooltip_data_from_tool(bContext *C, uiBut *but, bool is
         else if (BPY_execute_string_as_intptr(C, expr_imports, expr, true, &expr_result)) {
           if (expr_result != 0) {
             wmKeyMap *keymap = (wmKeyMap *)expr_result;
-            for (wmKeyMapItem *kmi = keymap->items.first; kmi; kmi = kmi->next) {
+            LISTBASE_FOREACH (wmKeyMapItem *, kmi, &keymap->items) {
               if (STREQ(kmi->idname, but->optype->idname)) {
                 char tool_id_test[MAX_NAME];
                 RNA_string_get(kmi->ptr, "name", tool_id_test);
diff --git a/source/blender/editors/interface/interface_templates.c b/source/blender/editors/interface/interface_templates.c
index 6bd956c87b0..ba7cd708bfa 100644
--- a/source/blender/editors/interface/interface_templates.c
+++ b/source/blender/editors/interface/interface_templates.c
@@ -1159,7 +1159,7 @@ static void template_ID_tabs(bContext *C,
   ListBase ordered;
   BKE_id_ordered_list(&ordered, template->idlb);
 
-  for (LinkData *link = ordered.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &ordered) {
     ID *id = link->data;
     const int name_width = UI_fontstyle_string_width(&style->widgetlabel, id->name + 2);
     const int but_width = name_width + UI_UNIT_X;
@@ -2428,7 +2428,7 @@ static void template_operator_redo_property_buts_draw(
     const bContext *C, wmOperator *op, uiLayout *layout, int layout_flags, bool *r_has_advanced)
 {
   if (op->type->flag & OPTYPE_MACRO) {
-    for (wmOperator *macro_op = op->macro.first; macro_op; macro_op = macro_op->next) {
+    LISTBASE_FOREACH (wmOperator *, macro_op, &op->macro) {
       template_operator_redo_property_buts_draw(C, macro_op, layout, layout_flags, r_has_advanced);
     }
   }
diff --git a/source/blender/editors/interface/view2d.c b/source/blender/editors/interface/view2d.c
index 97a3a7eefe4..c07166b9ad2 100644
--- a/source/blender/editors/interface/view2d.c
+++ b/source/blender/editors/interface/view2d.c
@@ -269,7 +269,6 @@ void UI_view2d_region_reinit(View2D *v2d, short type, int winx, int winy)
        */
       v2d->align = (V2D_ALIGN_NO_NEG_X | V2D_ALIGN_NO_NEG_Y);
       v2d->keeptot = V2D_KEEPTOT_BOUNDS;
-
       if (do_init) {
         v2d->tot.xmin = v2d->tot.ymin = 0.0f;
         v2d->tot.xmax = (float)(winx - 1);
@@ -900,7 +899,7 @@ void UI_view2d_sync(bScreen *screen, ScrArea *area, View2D *v2dcur, int flag)
 
   /* check if doing whole screen syncing (i.e. time/horizontal) */
   if ((v2dcur->flag & V2D_VIEWSYNC_SCREEN_TIME) && (screen)) {
-    for (ScrArea *area_iter = screen->areabase.first; area_iter; area_iter = area_iter->next) {
+    LISTBASE_FOREACH (ScrArea *, area_iter, &screen->areabase) {
       for (region = area_iter->regionbase.first; region; region = region->next) {
         /* don't operate on self */
         if (v2dcur != &region->v2d) {
diff --git a/source/blender/editors/mask/mask_draw.c b/source/blender/editors/mask/mask_draw.c
index 88e9c7c3664..bea44ee89f8 100644
--- a/source/blender/editors/mask/mask_draw.c
+++ b/source/blender/editors/mask/mask_draw.c
@@ -610,7 +610,7 @@ static void draw_mask_layers(const bContext *C,
       continue;
     }
 
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
 
       /* draw curve itself first... */
       draw_spline_curve(C, mask_layer, spline, draw_flag, draw_type, is_active, width, height);
diff --git a/source/blender/editors/mask/mask_ops.c b/source/blender/editors/mask/mask_ops.c
index a0ece69bf17..68dfe0d151f 100644
--- a/source/blender/editors/mask/mask_ops.c
+++ b/source/blender/editors/mask/mask_ops.c
@@ -1293,12 +1293,12 @@ static int cyclic_toggle_exec(bContext *C, wmOperator *UNUSED(op))
 {
   Mask *mask = CTX_data_edit_mask(C);
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     if (mask_layer->restrictflag & (MASK_RESTRICT_VIEW | MASK_RESTRICT_SELECT)) {
       continue;
     }
 
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
       if (ED_mask_spline_select_check(spline)) {
         spline->flag ^= MASK_SPLINE_CYCLIC;
       }
@@ -1371,7 +1371,7 @@ static int delete_exec(bContext *C, wmOperator *UNUSED(op))
   Mask *mask = CTX_data_edit_mask(C);
   bool changed = false;
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     MaskSpline *spline;
     int mask_layer_shape_ofs = 0;
 
@@ -1493,14 +1493,14 @@ static int mask_switch_direction_exec(bContext *C, wmOperator *UNUSED(op))
   bool changed = false;
 
   /* do actual selection */
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     bool changed_layer = false;
 
     if (mask_layer->restrictflag & (MASK_RESTRICT_VIEW | MASK_RESTRICT_SELECT)) {
       continue;
     }
 
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
       if (ED_mask_spline_select_check(spline)) {
         BKE_mask_spline_direction_switch(mask_layer, spline);
         changed = true;
@@ -1551,14 +1551,14 @@ static int mask_normals_make_consistent_exec(bContext *C, wmOperator *UNUSED(op)
   bool changed = false;
 
   /* do actual selection */
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     bool changed_layer = false;
 
     if (mask_layer->restrictflag & (MASK_RESTRICT_VIEW | MASK_RESTRICT_SELECT)) {
       continue;
     }
 
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
       for (int i = 0; i < spline->tot_point; i++) {
         MaskSplinePoint *point = &spline->points[i];
 
@@ -1614,12 +1614,12 @@ static int set_handle_type_exec(bContext *C, wmOperator *op)
 
   bool changed = false;
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     if (mask_layer->restrictflag & (MASK_RESTRICT_VIEW | MASK_RESTRICT_SELECT)) {
       continue;
     }
 
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
       for (int i = 0; i < spline->tot_point; i++) {
         MaskSplinePoint *point = &spline->points[i];
 
@@ -1695,7 +1695,7 @@ static int mask_hide_view_clear_exec(bContext *C, wmOperator *op)
   bool changed = false;
   const bool select = RNA_boolean_get(op->ptr, "select");
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
 
     if (mask_layer->restrictflag & OB_RESTRICT_VIEWPORT) {
       ED_mask_layer_select_set(mask_layer, select);
@@ -1739,7 +1739,7 @@ static int mask_hide_view_set_exec(bContext *C, wmOperator *op)
   const bool unselected = RNA_boolean_get(op->ptr, "unselected");
   bool changed = false;
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
 
     if (mask_layer->restrictflag & MASK_RESTRICT_SELECT) {
       continue;
@@ -1801,12 +1801,12 @@ static int mask_feather_weight_clear_exec(bContext *C, wmOperator *UNUSED(op))
   Mask *mask = CTX_data_edit_mask(C);
   bool changed = false;
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     if (mask_layer->restrictflag & (MASK_RESTRICT_SELECT | MASK_RESTRICT_VIEW)) {
       continue;
     }
 
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
       for (int i = 0; i < spline->tot_point; i++) {
         MaskSplinePoint *point = &spline->points[i];
 
@@ -1935,7 +1935,7 @@ static int mask_duplicate_exec(bContext *C, wmOperator *UNUSED(op))
 {
   Mask *mask = CTX_data_edit_mask(C);
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     for (MaskSpline *spline = mask_layer->splines.last; spline; spline = spline->prev) {
       MaskSplinePoint *point = spline->points;
       int i = 0;
diff --git a/source/blender/editors/mask/mask_relationships.c b/source/blender/editors/mask/mask_relationships.c
index 5c824fef74d..971e1c948c9 100644
--- a/source/blender/editors/mask/mask_relationships.c
+++ b/source/blender/editors/mask/mask_relationships.c
@@ -45,12 +45,12 @@ static int mask_parent_clear_exec(bContext *C, wmOperator *UNUSED(op))
 {
   Mask *mask = CTX_data_edit_mask(C);
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     if (mask_layer->restrictflag & (MASK_RESTRICT_VIEW | MASK_RESTRICT_SELECT)) {
       continue;
     }
 
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
       for (int i = 0; i < spline->tot_point; i++) {
         MaskSplinePoint *point = &spline->points[i];
 
@@ -137,12 +137,12 @@ static int mask_parent_set_exec(bContext *C, wmOperator *UNUSED(op))
     return OPERATOR_CANCELLED;
   }
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     if (mask_layer->restrictflag & (MASK_RESTRICT_VIEW | MASK_RESTRICT_SELECT)) {
       continue;
     }
 
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
       for (int i = 0; i < spline->tot_point; i++) {
         MaskSplinePoint *point = &spline->points[i];
 
diff --git a/source/blender/editors/mask/mask_select.c b/source/blender/editors/mask/mask_select.c
index 8d037258450..a6dece91eb0 100644
--- a/source/blender/editors/mask/mask_select.c
+++ b/source/blender/editors/mask/mask_select.c
@@ -74,7 +74,7 @@ bool ED_mask_layer_select_check(const MaskLayer *mask_layer)
     return false;
   }
 
-  for (const MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+  LISTBASE_FOREACH (const MaskSpline *, spline, &mask_layer->splines) {
     if (ED_mask_spline_select_check(spline)) {
       return true;
     }
@@ -85,8 +85,7 @@ bool ED_mask_layer_select_check(const MaskLayer *mask_layer)
 
 bool ED_mask_select_check(const Mask *mask)
 {
-  for (const MaskLayer *mask_layer = mask->masklayers.first; mask_layer;
-       mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (const MaskLayer *, mask_layer, &mask->masklayers) {
     if (ED_mask_layer_select_check(mask_layer)) {
       return true;
     }
@@ -122,7 +121,7 @@ void ED_mask_layer_select_set(MaskLayer *mask_layer, const bool do_select)
     }
   }
 
-  for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+  LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
     ED_mask_spline_select_set(spline, do_select);
   }
 }
@@ -138,7 +137,7 @@ void ED_mask_select_toggle_all(Mask *mask, int action)
     }
   }
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
 
     if (mask_layer->restrictflag & MASK_RESTRICT_VIEW) {
       continue;
@@ -151,7 +150,7 @@ void ED_mask_select_toggle_all(Mask *mask, int action)
       if (mask_layer->restrictflag & MASK_RESTRICT_SELECT) {
         continue;
       }
-      for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+      LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
         int i;
         for (i = 0; i < spline->tot_point; i++) {
           MaskSplinePoint *point = &spline->points[i];
@@ -167,8 +166,8 @@ void ED_mask_select_toggle_all(Mask *mask, int action)
 
 void ED_mask_select_flush_all(Mask *mask)
 {
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
       spline->flag &= ~SELECT;
 
       /* intentionally _dont_ do this in the mask layer loop
@@ -459,12 +458,12 @@ static int box_select_exec(bContext *C, wmOperator *op)
   ED_mask_point_pos(area, region, rect.xmax, rect.ymax, &rectf.xmax, &rectf.ymax);
 
   /* do actual selection */
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     if (mask_layer->restrictflag & (MASK_RESTRICT_VIEW | MASK_RESTRICT_SELECT)) {
       continue;
     }
 
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
       MaskSplinePoint *points_array = BKE_mask_spline_point_array(spline);
 
       for (int i = 0; i < spline->tot_point; i++) {
@@ -544,12 +543,12 @@ static bool do_lasso_select_mask(bContext *C,
   BLI_lasso_boundbox(&rect, mcords, moves);
 
   /* do actual selection */
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     if (mask_layer->restrictflag & (MASK_RESTRICT_VIEW | MASK_RESTRICT_SELECT)) {
       continue;
     }
 
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
       MaskSplinePoint *points_array = BKE_mask_spline_point_array(spline);
 
       for (int i = 0; i < spline->tot_point; i++) {
@@ -686,12 +685,12 @@ static int circle_select_exec(bContext *C, wmOperator *op)
   }
 
   /* do actual selection */
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     if (mask_layer->restrictflag & (MASK_RESTRICT_VIEW | MASK_RESTRICT_SELECT)) {
       continue;
     }
 
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
       MaskSplinePoint *points_array = BKE_mask_spline_point_array(spline);
 
       for (i = 0; i < spline->tot_point; i++) {
@@ -815,12 +814,12 @@ static int mask_select_linked_exec(bContext *C, wmOperator *UNUSED(op))
   bool changed = false;
 
   /* do actual selection */
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     if (mask_layer->restrictflag & (MASK_RESTRICT_VIEW | MASK_RESTRICT_SELECT)) {
       continue;
     }
 
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
       if (ED_mask_spline_select_check(spline)) {
         ED_mask_spline_select_set(spline, true);
         changed = true;
@@ -865,12 +864,12 @@ static int mask_select_more_less(bContext *C, bool more)
 {
   Mask *mask = CTX_data_edit_mask(C);
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     if (mask_layer->restrictflag & (MASK_RESTRICT_VIEW | MASK_RESTRICT_SELECT)) {
       continue;
     }
 
-    for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+    LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
       const bool cyclic = (spline->flag & MASK_SPLINE_CYCLIC) != 0;
       bool start_sel, end_sel, prev_sel, cur_sel;
       int i;
diff --git a/source/blender/editors/mask/mask_shapekey.c b/source/blender/editors/mask/mask_shapekey.c
index 25b602d63c3..f264e67d35c 100644
--- a/source/blender/editors/mask/mask_shapekey.c
+++ b/source/blender/editors/mask/mask_shapekey.c
@@ -53,7 +53,7 @@ static int mask_shape_key_insert_exec(bContext *C, wmOperator *UNUSED(op))
   Mask *mask = CTX_data_edit_mask(C);
   bool changed = false;
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     MaskLayerShape *mask_layer_shape;
 
     if (!ED_mask_layer_select_check(mask_layer)) {
@@ -98,7 +98,7 @@ static int mask_shape_key_clear_exec(bContext *C, wmOperator *UNUSED(op))
   Mask *mask = CTX_data_edit_mask(C);
   bool changed = false;
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     MaskLayerShape *mask_layer_shape;
 
     if (!ED_mask_layer_select_check(mask_layer)) {
@@ -146,7 +146,7 @@ static int mask_shape_key_feather_reset_exec(bContext *C, wmOperator *UNUSED(op)
   Mask *mask = CTX_data_edit_mask(C);
   bool changed = false;
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
 
     if (mask_layer->restrictflag & (MASK_RESTRICT_VIEW | MASK_RESTRICT_SELECT)) {
       continue;
@@ -172,7 +172,7 @@ static int mask_shape_key_feather_reset_exec(bContext *C, wmOperator *UNUSED(op)
           shape_ele_src = (MaskLayerShapeElem *)mask_layer_shape_reset->data;
           shape_ele_dst = (MaskLayerShapeElem *)mask_layer_shape->data;
 
-          for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+          LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
             for (int i = 0; i < spline->tot_point; i++) {
               MaskSplinePoint *point = &spline->points[i];
 
@@ -243,7 +243,7 @@ static int mask_shape_key_rekey_exec(bContext *C, wmOperator *op)
   const bool do_feather = RNA_boolean_get(op->ptr, "feather");
   const bool do_location = RNA_boolean_get(op->ptr, "location");
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     if (mask_layer->restrictflag & (MASK_RESTRICT_VIEW | MASK_RESTRICT_SELECT)) {
       continue;
     }
@@ -324,7 +324,7 @@ static int mask_shape_key_rekey_exec(bContext *C, wmOperator *op)
             shape_ele_src = (MaskLayerShapeElem *)mask_layer_shape_tmp->data;
             shape_ele_dst = (MaskLayerShapeElem *)mask_layer_shape_tmp_rekey->data;
 
-            for (MaskSpline *spline = mask_layer->splines.first; spline; spline = spline->next) {
+            LISTBASE_FOREACH (MaskSpline *, spline, &mask_layer->splines) {
               for (int i = 0; i < spline->tot_point; i++) {
                 MaskSplinePoint *point = &spline->points[i];
 
@@ -404,7 +404,7 @@ bool ED_mask_layer_shape_auto_key_all(Mask *mask, const int frame)
 {
   bool changed = false;
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
     ED_mask_layer_shape_auto_key(mask_layer, frame);
     changed = true;
   }
@@ -416,7 +416,7 @@ bool ED_mask_layer_shape_auto_key_select(Mask *mask, const int frame)
 {
   bool changed = false;
 
-  for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
+  LISTBASE_FOREACH (MaskLayer *, mask_layer, &mask->masklayers) {
 
     if (!ED_mask_layer_select_check(mask_layer)) {
       continue;
diff --git a/source/blender/editors/mesh/editmesh_extrude_spin_gizmo.c b/source/blender/editors/mesh/editmesh_extrude_spin_gizmo.c
index aa737a1701a..feb6b5aaca9 100644
--- a/source/blender/editors/mesh/editmesh_extrude_spin_gizmo.c
+++ b/source/blender/editors/mesh/editmesh_extrude_spin_gizmo.c
@@ -1031,7 +1031,7 @@ static void gizmo_mesh_spin_redo_draw_prepare(const bContext *UNUSED(C), wmGizmo
    * could shift because of float precision.
    * Updates in this case are also redundant. */
   bool is_modal = false;
-  for (wmGizmo *gz = gzgroup->gizmos.first; gz; gz = gz->next) {
+  LISTBASE_FOREACH (wmGizmo *, gz, &gzgroup->gizmos) {
     if (gz->state & WM_GIZMO_STATE_MODAL) {
       is_modal = true;
       break;
diff --git a/source/blender/editors/mesh/editmesh_utils.c b/source/blender/editors/mesh/editmesh_utils.c
index 08976cc46c4..998e0d736e6 100644
--- a/source/blender/editors/mesh/editmesh_utils.c
+++ b/source/blender/editors/mesh/editmesh_utils.c
@@ -370,8 +370,7 @@ void EDBM_mesh_load_ex(Main *bmain, Object *ob, bool free_data)
    * cycles.
    */
 #if 0
-  for (Object *other_object = bmain->objects.first; other_object != NULL;
-       other_object = other_object->id.next) {
+  for (Object *other_object = bmain->objects.first; other_object != NULL; other_object = other_object->id.next) {
     if (other_object->data == ob->data) {
       BKE_object_free_derived_caches(other_object);
     }
diff --git a/source/blender/editors/mesh/meshtools.c b/source/blender/editors/mesh/meshtools.c
index 519822dd65c..4a1450eaccc 100644
--- a/source/blender/editors/mesh/meshtools.c
+++ b/source/blender/editors/mesh/meshtools.c
@@ -161,7 +161,7 @@ static void join_mesh_single(Depsgraph *depsgraph,
        */
       if (key) {
         /* if this mesh has any shapekeys, check first, otherwise just copy coordinates */
-        for (KeyBlock *kb = key->block.first; kb; kb = kb->next) {
+        LISTBASE_FOREACH (KeyBlock *, kb, &key->block) {
           /* get pointer to where to write data for this mesh in shapekey's data array */
           float(*cos)[3] = ((float(*)[3])kb->data) + *vertofs;
 
@@ -191,7 +191,7 @@ static void join_mesh_single(Depsgraph *depsgraph,
        * - otherwise, copy across plain coordinates (no need to transform coordinates)
        */
       if (key) {
-        for (KeyBlock *kb = key->block.first; kb; kb = kb->next) {
+        LISTBASE_FOREACH (KeyBlock *, kb, &key->block) {
           /* get pointer to where to write data for this mesh in shapekey's data array */
           float(*cos)[3] = ((float(*)[3])kb->data) + *vertofs;
 
@@ -440,7 +440,7 @@ int join_mesh_exec(bContext *C, wmOperator *op)
       }
 
       /* Join this object's face maps to the base one's. */
-      for (bFaceMap *fmap = ob_iter->fmaps.first; fmap; fmap = fmap->next) {
+      LISTBASE_FOREACH (bFaceMap *, fmap, &ob_iter->fmaps) {
         /* See if this group exists in the object (if it doesn't, add it to the end) */
         if (BKE_object_facemap_find_name(ob, fmap->name) == NULL) {
           bFaceMap *fmap_new = MEM_mallocN(sizeof(bFaceMap), "join faceMap");
diff --git a/source/blender/editors/metaball/mball_edit.c b/source/blender/editors/metaball/mball_edit.c
index b96f225f660..9386c466f95 100644
--- a/source/blender/editors/metaball/mball_edit.c
+++ b/source/blender/editors/metaball/mball_edit.c
@@ -456,7 +456,7 @@ static int select_random_metaelems_exec(bContext *C, wmOperator *op)
 
     RNG *rng = BLI_rng_new_srandom(seed_iter);
 
-    for (MetaElem *ml = mb->editelems->first; ml; ml = ml->next) {
+    LISTBASE_FOREACH (MetaElem *, ml, mb->editelems) {
       if (BLI_rng_get_float(rng) < randfac) {
         if (select) {
           ml->flag |= SELECT;
@@ -656,7 +656,7 @@ static int reveal_metaelems_exec(bContext *C, wmOperator *op)
   const bool select = RNA_boolean_get(op->ptr, "select");
   bool changed = false;
 
-  for (MetaElem *ml = mb->editelems->first; ml; ml = ml->next) {
+  LISTBASE_FOREACH (MetaElem *, ml, mb->editelems) {
     if (ml->flag & MB_HIDE) {
       SET_FLAG_FROM_TEST(ml->flag, select, SELECT);
       ml->flag &= ~MB_HIDE;
diff --git a/source/blender/editors/object/object_add.c b/source/blender/editors/object/object_add.c
index a74dc6a1384..9119d1cac86 100644
--- a/source/blender/editors/object/object_add.c
+++ b/source/blender/editors/object/object_add.c
@@ -2255,7 +2255,7 @@ static int convert_exec(bContext *C, wmOperator *op)
    * needed since re-evaluating single modifiers causes bugs if they depend
    * on other objects data masks too, see: T50950. */
   {
-    for (CollectionPointerLink *link = selected_editable_bases.first; link; link = link->next) {
+    LISTBASE_FOREACH (CollectionPointerLink *, link, &selected_editable_bases) {
       Base *base = link->ptr.data;
       Object *ob = base->object;
 
@@ -2282,7 +2282,7 @@ static int convert_exec(bContext *C, wmOperator *op)
     scene->customdata_mask = customdata_mask_prev;
   }
 
-  for (CollectionPointerLink *link = selected_editable_bases.first; link; link = link->next) {
+  LISTBASE_FOREACH (CollectionPointerLink *, link, &selected_editable_bases) {
     Object *newob = NULL;
     Base *base = link->ptr.data;
     Object *ob = base->object;
diff --git a/source/blender/editors/object/object_data_transform.c b/source/blender/editors/object/object_data_transform.c
index fc91cbb9666..54fd1fe6671 100644
--- a/source/blender/editors/object/object_data_transform.c
+++ b/source/blender/editors/object/object_data_transform.c
@@ -92,7 +92,7 @@ static struct ElemData_Armature *armature_coords_and_quats_get_recurse(
     const ListBase *bone_base, struct ElemData_Armature *elem_array)
 {
   struct ElemData_Armature *elem = elem_array;
-  for (const Bone *bone = bone_base->first; bone; bone = bone->next) {
+  LISTBASE_FOREACH (const Bone *, bone, bone_base) {
 
 #define COPY_PTR(member) memcpy(elem->member, bone->member, sizeof(bone->member))
 #define COPY_VAL(member) memcpy(&elem->member, &bone->member, sizeof(bone->member))
@@ -125,7 +125,7 @@ static const struct ElemData_Armature *armature_coords_and_quats_apply_with_mat4
     ListBase *bone_base, const struct ElemData_Armature *elem_array, const float mat[4][4])
 {
   const struct ElemData_Armature *elem = elem_array;
-  for (Bone *bone = bone_base->first; bone; bone = bone->next) {
+  LISTBASE_FOREACH (Bone *, bone, bone_base) {
 
 #define COPY_PTR(member) memcpy(bone->member, elem->member, sizeof(bone->member))
 #define COPY_VAL(member) memcpy(&bone->member, &elem->member, sizeof(bone->member))
diff --git a/source/blender/editors/object/object_edit.c b/source/blender/editors/object/object_edit.c
index ee9b6b411ce..5506895613b 100644
--- a/source/blender/editors/object/object_edit.c
+++ b/source/blender/editors/object/object_edit.c
@@ -166,7 +166,7 @@ static int object_hide_view_clear_exec(bContext *C, wmOperator *op)
   const bool select = RNA_boolean_get(op->ptr, "select");
   bool changed = false;
 
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     if (base->flag & BASE_HIDDEN) {
       base->flag &= ~BASE_HIDDEN;
       changed = true;
@@ -217,7 +217,7 @@ static int object_hide_view_set_exec(bContext *C, wmOperator *op)
   bool changed = false;
 
   /* Hide selected or unselected objects. */
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     if (!(base->flag & BASE_VISIBLE_VIEWLAYER)) {
       continue;
     }
@@ -321,7 +321,7 @@ void ED_collection_hide_menu_draw(const bContext *C, uiLayout *layout)
 
   uiLayoutSetOperatorContext(layout, WM_OP_EXEC_REGION_WIN);
 
-  for (LayerCollection *lc = lc_scene->layer_collections.first; lc; lc = lc->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc, &lc_scene->layer_collections) {
     int index = BKE_layer_collection_findindex(view_layer, lc);
     uiLayout *row = uiLayoutRow(layout, false);
 
@@ -414,7 +414,7 @@ static bool mesh_needs_keyindex(Main *bmain, const Mesh *me)
       return true;
     }
     if (ob->data == me) {
-      for (const ModifierData *md = ob->modifiers.first; md; md = md->next) {
+      LISTBASE_FOREACH (const ModifierData *, md, &ob->modifiers) {
         if (md->type == eModifierType_Hook) {
           return true;
         }
@@ -1593,7 +1593,7 @@ static int move_to_collection_exec(bContext *C, wmOperator *op)
     return OPERATOR_CANCELLED;
   }
 
-  for (LinkData *link = objects.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &objects) {
     Object *ob = link->data;
 
     if (!is_link) {
diff --git a/source/blender/editors/object/object_relations.c b/source/blender/editors/object/object_relations.c
index c5fccc5defd..256e32c7bfc 100644
--- a/source/blender/editors/object/object_relations.c
+++ b/source/blender/editors/object/object_relations.c
@@ -1753,7 +1753,7 @@ static void libblock_relink_collection(Collection *collection, const bool do_col
     BKE_libblock_relink_to_newid(&cob->ob->id);
   }
 
-  for (CollectionChild *child = collection->children.first; child; child = child->next) {
+  LISTBASE_FOREACH (CollectionChild *, child, &collection->children) {
     libblock_relink_collection(child->collection, true);
   }
 }
@@ -1772,7 +1772,7 @@ static Collection *single_object_users_collection(Main *bmain,
   }
 
   /* We do not remap to new objects here, this is done in separate step. */
-  for (CollectionObject *cob = collection->gobject.first; cob; cob = cob->next) {
+  LISTBASE_FOREACH (CollectionObject *, cob, &collection->gobject) {
     Object *ob = cob->ob;
     /* an object may be in more than one collection */
     if ((ob->id.newid == NULL) && ((ob->flag & flag) == flag)) {
@@ -2106,7 +2106,7 @@ void ED_object_single_users(Main *bmain,
 
     if (scene->nodetree) {
       IDP_RelinkProperty(scene->nodetree->id.properties);
-      for (bNode *node = scene->nodetree->nodes.first; node; node = node->next) {
+      LISTBASE_FOREACH (bNode *, node, &scene->nodetree->nodes) {
         IDP_RelinkProperty(node->prop);
       }
     }
@@ -2245,7 +2245,7 @@ static void make_local_animdata_tag(AnimData *adt)
     /* TODO: need to handle the ID-targets too? */
 
     /* NLA Data */
-    for (NlaTrack *nlt = adt->nla_tracks.first; nlt; nlt = nlt->next) {
+    LISTBASE_FOREACH (NlaTrack *, nlt, &adt->nla_tracks) {
       make_local_animdata_tag_strips(&nlt->strips);
     }
   }
diff --git a/source/blender/editors/object/object_select.c b/source/blender/editors/object/object_select.c
index 8f01adb202e..5f9799710dc 100644
--- a/source/blender/editors/object/object_select.c
+++ b/source/blender/editors/object/object_select.c
@@ -246,7 +246,7 @@ Base *ED_object_find_first_by_data_id(ViewLayer *view_layer, ID *id)
   Base *base_best = NULL;
   int priority_best = 0;
 
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     if (base->object && base->object->data == id) {
       if (base->flag & BASE_SELECTED) {
         return base;
@@ -1325,7 +1325,7 @@ static bool object_select_more_less(bContext *C, const bool select)
 {
   ViewLayer *view_layer = CTX_data_view_layer(C);
 
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     Object *ob = base->object;
     ob->flag &= ~OB_DONE;
     ob->id.tag &= ~LIB_TAG_DOIT;
diff --git a/source/blender/editors/object/object_utils.c b/source/blender/editors/object/object_utils.c
index 8925d165b9b..00aafc2120f 100644
--- a/source/blender/editors/object/object_utils.c
+++ b/source/blender/editors/object/object_utils.c
@@ -194,7 +194,7 @@ void ED_object_xform_skip_child_container_item_ensure_from_array(
     BLI_gset_add(objects_in_transdata, ob);
   }
 
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     Object *ob = base->object;
     if (ob->parent != NULL) {
       if (!BLI_gset_haskey(objects_in_transdata, ob)) {
@@ -224,7 +224,7 @@ void ED_object_xform_skip_child_container_item_ensure_from_array(
     }
   }
 
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     Object *ob = base->object;
 
     if (BLI_gset_haskey(objects_in_transdata, ob)) {
diff --git a/source/blender/editors/object/object_volume.c b/source/blender/editors/object/object_volume.c
index 92fb0788f6b..bb619972e80 100644
--- a/source/blender/editors/object/object_volume.c
+++ b/source/blender/editors/object/object_volume.c
@@ -96,7 +96,7 @@ static int volume_import_exec(bContext *C, wmOperator *op)
   bool imported = false;
 
   ListBase ranges = ED_image_filesel_detect_sequences(bmain, op, false);
-  for (ImageFrameRange *range = ranges.first; range; range = range->next) {
+  LISTBASE_FOREACH (ImageFrameRange *, range, &ranges) {
     char filename[FILE_MAX];
     BLI_split_file_part(range->filepath, filename, sizeof(filename));
     BLI_path_extension_replace(filename, sizeof(filename), "");
diff --git a/source/blender/editors/render/render_internal.c b/source/blender/editors/render/render_internal.c
index 3d87220979b..1237c2c2eda 100644
--- a/source/blender/editors/render/render_internal.c
+++ b/source/blender/editors/render/render_internal.c
@@ -551,7 +551,7 @@ static void render_image_update_pass_and_layer(RenderJob *rj, RenderResult *rr,
     for (win = wm->windows.first; win && matched_area == NULL; win = win->next) {
       const bScreen *screen = WM_window_get_active_screen(win);
 
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
         if (area->spacetype == SPACE_IMAGE) {
           SpaceImage *sima = area->spacedata.first;
           // area->spacedata might be empty when toggling fullscreen mode.
@@ -689,7 +689,7 @@ static void render_image_restore_layer(RenderJob *rj)
     for (win = wm->windows.first; win; win = win->next) {
       const bScreen *screen = WM_window_get_active_screen(win);
 
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
         if (area == rj->area) {
           if (area->spacetype == SPACE_IMAGE) {
             SpaceImage *sima = area->spacedata.first;
@@ -887,7 +887,7 @@ static void clean_viewport_memory(Main *bmain, Scene *scene)
 
   /* Go over all the visible objects. */
   for (wmWindowManager *wm = bmain->wm.first; wm; wm = wm->id.next) {
-    for (wmWindow *win = wm->windows.first; win; win = win->next) {
+    LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
       ViewLayer *view_layer = WM_window_get_active_view_layer(win);
 
       for (base = view_layer->object_bases.first; base; base = base->next) {
diff --git a/source/blender/editors/render/render_preview.c b/source/blender/editors/render/render_preview.c
index 2c508472a9c..0432057bb47 100644
--- a/source/blender/editors/render/render_preview.c
+++ b/source/blender/editors/render/render_preview.c
@@ -304,7 +304,7 @@ static void set_preview_visibility(Scene *scene,
   }
 
   /* Hide floor for icon renders. */
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     if (STREQ(base->object->id.name + 2, "Floor")) {
       if (pr_method == PR_ICON_RENDER) {
         base->object->restrictflag |= OB_RESTRICT_RENDER;
@@ -463,7 +463,7 @@ static Scene *preview_prepare_scene(
         sce->display.render_aa = SCE_DISPLAY_AA_OFF;
       }
 
-      for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+      LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
         if (base->object->id.name[2] == 'p') {
           /* copy over object color, in case material uses it */
           copy_v4_v4(base->object->color, sp->color);
@@ -522,7 +522,7 @@ static Scene *preview_prepare_scene(
         sce->world->horb = 0.0f;
       }
 
-      for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+      LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
         if (base->object->id.name[2] == 'p') {
           if (base->object->type == OB_LAMP) {
             base->object->data = la;
diff --git a/source/blender/editors/render/render_update.c b/source/blender/editors/render/render_update.c
index 24b1c5a36f8..10f69f3fe9d 100644
--- a/source/blender/editors/render/render_update.c
+++ b/source/blender/editors/render/render_update.c
@@ -182,7 +182,7 @@ void ED_render_engine_changed(Main *bmain)
 {
   /* on changing the render engine type, clear all running render engines */
   for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
       ED_render_engine_area_exit(bmain, area);
     }
   }
@@ -206,7 +206,7 @@ void ED_render_engine_changed(Main *bmain)
 
 void ED_render_view_layer_changed(Main *bmain, bScreen *screen)
 {
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
     ED_render_engine_area_exit(bmain, area);
   }
 }
diff --git a/source/blender/editors/scene/scene_edit.c b/source/blender/editors/scene/scene_edit.c
index 114cb54636a..d78b1532a39 100644
--- a/source/blender/editors/scene/scene_edit.c
+++ b/source/blender/editors/scene/scene_edit.c
@@ -99,7 +99,7 @@ bool ED_scene_delete(bContext *C, Main *bmain, Scene *scene)
     return false;
   }
 
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     if (win->parent != NULL) { /* We only care about main windows here... */
       continue;
     }
@@ -175,7 +175,7 @@ bool ED_scene_view_layer_delete(Main *bmain, Scene *scene, ViewLayer *layer, Rep
 
   /* Remove from windows. */
   wmWindowManager *wm = bmain->wm.first;
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     if (win->scene == scene && STREQ(win->view_layer_name, layer->name)) {
       ViewLayer *first_layer = BKE_view_layer_default_view(scene);
       STRNCPY(win->view_layer_name, first_layer->name);
diff --git a/source/blender/editors/screen/area.c b/source/blender/editors/screen/area.c
index 751f37dc5ec..49838b62b71 100644
--- a/source/blender/editors/screen/area.c
+++ b/source/blender/editors/screen/area.c
@@ -799,7 +799,7 @@ void ED_workspace_status_text(bContext *C, const char *str)
   }
 
   /* Redraw status bar. */
-  for (ScrArea *area = win->global_areas.areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &win->global_areas.areabase) {
     if (area->spacetype == SPACE_STATUSBAR) {
       ED_area_tag_redraw(area);
       break;
@@ -1824,7 +1824,7 @@ void ED_area_update_region_sizes(wmWindowManager *wm, wmWindow *win, ScrArea *ar
   /* Dynamically sized regions may have changed region sizes, so we have to force azone update. */
   area_azone_initialize(win, screen, area);
 
-  for (ARegion *region = area->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
     region_subwindow(region);
 
     /* region size may have changed, init does necessary adjustments */
@@ -2176,7 +2176,7 @@ void ED_area_newspace(bContext *C, ScrArea *area, int type, const bool skip_regi
     if (sync_header_alignment) {
       /* Spaces with footer. */
       if (st->spaceid == SPACE_TEXT) {
-        for (ARegion *region = area->regionbase.first; region; region = region->next) {
+        LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
           if (ELEM(region->regiontype, RGN_TYPE_HEADER, RGN_TYPE_TOOL_HEADER)) {
             region->alignment = header_alignment;
           }
@@ -2189,7 +2189,7 @@ void ED_area_newspace(bContext *C, ScrArea *area, int type, const bool skip_regi
         }
       }
       else {
-        for (ARegion *region = area->regionbase.first; region; region = region->next) {
+        LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
           if (ELEM(region->regiontype, RGN_TYPE_HEADER, RGN_TYPE_TOOL_HEADER)) {
             region->alignment = header_alignment;
             break;
@@ -2440,7 +2440,7 @@ static void ed_panel_draw(const bContext *C,
 
   /* Draw child panels. */
   if (open) {
-    for (LinkData *link = pt->children.first; link; link = link->next) {
+    LISTBASE_FOREACH (LinkData *, link, &pt->children) {
       PanelType *child_pt = link->data;
       Panel *child_panel = UI_panel_find_by_type(&panel->children, child_pt);
 
@@ -2856,7 +2856,7 @@ int ED_area_headersize(void)
 
 int ED_area_header_alignment_or_fallback(const ScrArea *area, int fallback)
 {
-  for (ARegion *region = area->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
     if (region->regiontype == RGN_TYPE_HEADER) {
       return region->alignment;
     }
@@ -2877,7 +2877,7 @@ int ED_area_footersize(void)
 
 int ED_area_footer_alignment_or_fallback(const ScrArea *area, int fallback)
 {
-  for (ARegion *region = area->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
     if (region->regiontype == RGN_TYPE_FOOTER) {
       return region->alignment;
     }
diff --git a/source/blender/editors/screen/screen_context.c b/source/blender/editors/screen/screen_context.c
index 089865bb60c..2ac113d2ba7 100644
--- a/source/blender/editors/screen/screen_context.c
+++ b/source/blender/editors/screen/screen_context.c
@@ -130,7 +130,7 @@ int ed_screen_context(const bContext *C, const char *member, bContextDataResult
     return 1;
   }
   else if (CTX_data_equals(member, "visible_objects")) {
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       if (BASE_VISIBLE(v3d, base)) {
         CTX_data_id_list_add(result, &base->object->id);
       }
@@ -139,7 +139,7 @@ int ed_screen_context(const bContext *C, const char *member, bContextDataResult
     return 1;
   }
   else if (CTX_data_equals(member, "selectable_objects")) {
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       if (BASE_SELECTABLE(v3d, base)) {
         CTX_data_id_list_add(result, &base->object->id);
       }
@@ -148,7 +148,7 @@ int ed_screen_context(const bContext *C, const char *member, bContextDataResult
     return 1;
   }
   else if (CTX_data_equals(member, "selected_objects")) {
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       if (BASE_SELECTED(v3d, base)) {
         CTX_data_id_list_add(result, &base->object->id);
       }
@@ -157,7 +157,7 @@ int ed_screen_context(const bContext *C, const char *member, bContextDataResult
     return 1;
   }
   else if (CTX_data_equals(member, "selected_editable_objects")) {
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       if (BASE_SELECTED_EDITABLE(v3d, base)) {
         CTX_data_id_list_add(result, &base->object->id);
       }
@@ -167,7 +167,7 @@ int ed_screen_context(const bContext *C, const char *member, bContextDataResult
   }
   else if (CTX_data_equals(member, "editable_objects")) {
     /* Visible + Editable, but not necessarily selected */
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       if (BASE_EDITABLE(v3d, base)) {
         CTX_data_id_list_add(result, &base->object->id);
       }
@@ -726,7 +726,7 @@ int ed_screen_context(const bContext *C, const char *member, bContextDataResult
 
       ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
 
-      for (bAnimListElem *ale = anim_data.first; ale; ale = ale->next) {
+      LISTBASE_FOREACH (bAnimListElem *, ale, &anim_data) {
         if (ELEM(ale->type, ANIMTYPE_FCURVE, ANIMTYPE_NLACURVE)) {
           CTX_data_list_add(result, ale->fcurve_owner_id, &RNA_FCurve, ale->data);
         }
@@ -749,7 +749,7 @@ int ed_screen_context(const bContext *C, const char *member, bContextDataResult
 
       ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
 
-      for (bAnimListElem *ale = anim_data.first; ale; ale = ale->next) {
+      LISTBASE_FOREACH (bAnimListElem *, ale, &anim_data) {
         if (ELEM(ale->type, ANIMTYPE_FCURVE, ANIMTYPE_NLACURVE)) {
           CTX_data_pointer_set(result, ale->fcurve_owner_id, &RNA_FCurve, ale->data);
           break;
diff --git a/source/blender/editors/screen/screen_draw.c b/source/blender/editors/screen/screen_draw.c
index c1b6df07129..2452302561b 100644
--- a/source/blender/editors/screen/screen_draw.c
+++ b/source/blender/editors/screen/screen_draw.c
@@ -547,7 +547,7 @@ static void screen_preview_scale_get(
 {
   float max_x = 0, max_y = 0;
 
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
     max_x = MAX2(max_x, area->totrct.xmax);
     max_y = MAX2(max_y, area->totrct.ymax);
   }
@@ -566,7 +566,7 @@ static void screen_preview_draw_areas(const bScreen *screen,
   immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
   immUniformColor4fv(col);
 
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
     rctf rect = {
         .xmin = area->totrct.xmin * scale[0] + ofs_h,
         .xmax = area->totrct.xmax * scale[0] - ofs_h,
diff --git a/source/blender/editors/screen/screen_edit.c b/source/blender/editors/screen/screen_edit.c
index 16ef93872ff..8608c18c988 100644
--- a/source/blender/editors/screen/screen_edit.c
+++ b/source/blender/editors/screen/screen_edit.c
@@ -415,7 +415,7 @@ static void region_cursor_set(wmWindow *win, bool swin_changed)
 
   ED_screen_areas_iter(win, screen, area)
   {
-    for (ARegion *region = area->regionbase.first; region; region = region->next) {
+    LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
       if (region == screen->active_region) {
         region_cursor_set_ex(win, area, region, swin_changed);
         return;
@@ -607,14 +607,14 @@ void ED_screen_exit(bContext *C, wmWindow *window, bScreen *screen)
 
   screen->active_region = NULL;
 
-  for (ARegion *region = screen->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, &screen->regionbase) {
     ED_region_exit(C, region);
   }
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
     ED_area_exit(C, area);
   }
   /* Don't use ED_screen_areas_iter here, it skips hidden areas. */
-  for (ScrArea *area = window->global_areas.areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &window->global_areas.areabase) {
     ED_area_exit(C, area);
   }
 
@@ -912,7 +912,7 @@ void ED_screen_global_areas_sync(wmWindow *win)
 
   screen->flag &= ~SCREEN_COLLAPSE_STATUSBAR;
 
-  for (ScrArea *area = win->global_areas.areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &win->global_areas.areabase) {
     if (area->global->cur_fixed_height == area->global->size_min) {
       if (area->spacetype == SPACE_STATUSBAR) {
         screen->flag |= SCREEN_COLLAPSE_STATUSBAR;
@@ -978,7 +978,7 @@ bScreen *screen_change_prepare(
     wmTimer *wt = screen_old->animtimer;
 
     /* remove handlers referencing areas in old screen */
-    for (ScrArea *area = screen_old->areabase.first; area; area = area->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen_old->areabase) {
       WM_event_remove_area_handler(&win->modalhandlers, area);
     }
 
@@ -1109,8 +1109,8 @@ void ED_screen_scene_change(bContext *C, wmWindow *win, Scene *scene)
 
   /* Update 3D view cameras. */
   const bScreen *screen = WM_window_get_active_screen(win);
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-    for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+    LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
       if (sl->spacetype == SPACE_VIEW3D) {
         View3D *v3d = (View3D *)sl;
         screen_set_3dview_camera(scene, view_layer, area, v3d);
@@ -1249,7 +1249,7 @@ ScrArea *ED_screen_state_toggle(bContext *C, wmWindow *win, ScrArea *area, const
 
     /* find old area to restore from */
     ScrArea *fullsa = NULL;
-    for (ScrArea *old = screen->areabase.first; old; old = old->next) {
+    LISTBASE_FOREACH (ScrArea *, old, &screen->areabase) {
       /* area to restore from is always first */
       if (old->full && !fullsa) {
         fullsa = old;
@@ -1270,8 +1270,7 @@ ScrArea *ED_screen_state_toggle(bContext *C, wmWindow *win, ScrArea *area, const
 
     if (state == SCREENFULL) {
       /* unhide global areas */
-      for (ScrArea *glob_area = win->global_areas.areabase.first; glob_area;
-           glob_area = glob_area->next) {
+      LISTBASE_FOREACH (ScrArea *, glob_area, &win->global_areas.areabase) {
         glob_area->global->flag &= ~GLOBAL_AREA_IS_HIDDEN;
       }
       /* restore the old side panels/header visibility */
@@ -1335,8 +1334,7 @@ ScrArea *ED_screen_state_toggle(bContext *C, wmWindow *win, ScrArea *area, const
 
     if (state == SCREENFULL) {
       /* temporarily hide global areas */
-      for (ScrArea *glob_area = win->global_areas.areabase.first; glob_area;
-           glob_area = glob_area->next) {
+      LISTBASE_FOREACH (ScrArea *, glob_area, &win->global_areas.areabase) {
         glob_area->global->flag |= GLOBAL_AREA_IS_HIDDEN;
       }
       /* temporarily hide the side panels/header */
@@ -1662,7 +1660,7 @@ Scene *ED_screen_scene_find_with_window(const bScreen *screen,
                                         const wmWindowManager *wm,
                                         struct wmWindow **r_window)
 {
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     if (WM_window_get_active_screen(win) == screen) {
       if (r_window) {
         *r_window = win;
@@ -1680,14 +1678,14 @@ ScrArea *ED_screen_area_find_with_spacedata(const bScreen *screen,
                                             const bool only_visible)
 {
   if (only_visible) {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
       if (area->spacedata.first == sl) {
         return area;
       }
     }
   }
   else {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
       if (BLI_findindex(&area->spacedata, sl) != -1) {
         return area;
       }
@@ -1703,7 +1701,7 @@ Scene *ED_screen_scene_find(const bScreen *screen, const wmWindowManager *wm)
 
 wmWindow *ED_screen_window_find(const bScreen *screen, const wmWindowManager *wm)
 {
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     if (WM_window_get_active_screen(win) == screen) {
       return win;
     }
diff --git a/source/blender/editors/screen/screen_geometry.c b/source/blender/editors/screen/screen_geometry.c
index 178c375c8ee..4069795657e 100644
--- a/source/blender/editors/screen/screen_geometry.c
+++ b/source/blender/editors/screen/screen_geometry.c
@@ -96,7 +96,7 @@ ScrEdge *screen_geom_area_map_find_active_scredge(const ScrAreaMap *area_map,
 
   CLAMP_MIN(safety, 2);
 
-  for (ScrEdge *se = area_map->edgebase.first; se; se = se->next) {
+  LISTBASE_FOREACH (ScrEdge *, se, &area_map->edgebase) {
     if (screen_geom_edge_is_horizontal(se)) {
       if ((se->v1->vec.y > bounds_rect->ymin) && (se->v1->vec.y < (bounds_rect->ymax - 1))) {
         short min, max;
@@ -198,7 +198,7 @@ void screen_geom_vertices_scale(const wmWindow *win, bScreen *screen)
 
     if (facy > 1) {
       /* Keep timeline small in video edit workspace. */
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
         if (area->spacetype == SPACE_ACTION && area->v1->vec.y == screen_rect.ymin &&
             screen_geom_area_height(area) <= headery * facy + 1) {
           ScrEdge *se = BKE_screen_find_edge(screen, area->v2, area->v3);
@@ -222,7 +222,7 @@ void screen_geom_vertices_scale(const wmWindow *win, bScreen *screen)
     }
     if (facy < 1) {
       /* make each window at least ED_area_headersize() high */
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
         if (screen_geom_area_height(area) < headery) {
           /* lower edge */
           ScrEdge *se = BKE_screen_find_edge(screen, area->v4, area->v1);
@@ -248,7 +248,7 @@ void screen_geom_vertices_scale(const wmWindow *win, bScreen *screen)
 
   /* Global areas have a fixed size that only changes with the DPI.
    * Here we ensure that exactly this size is set. */
-  for (ScrArea *area = win->global_areas.areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &win->global_areas.areabase) {
     if (area->global->flag & GLOBAL_AREA_IS_HIDDEN) {
       continue;
     }
@@ -379,7 +379,7 @@ void screen_geom_select_connected_edge(const wmWindow *win, ScrEdge *edge)
 
   while (oneselected) {
     oneselected = false;
-    for (ScrEdge *se = screen->edgebase.first; se; se = se->next) {
+    LISTBASE_FOREACH (ScrEdge *, se, &screen->edgebase) {
       if (se->v1->flag + se->v2->flag == 1) {
         if (dir == 'h') {
           if (se->v1->vec.y == se->v2->vec.y) {
diff --git a/source/blender/editors/screen/screen_ops.c b/source/blender/editors/screen/screen_ops.c
index 08bf6f67215..452984f2333 100644
--- a/source/blender/editors/screen/screen_ops.c
+++ b/source/blender/editors/screen/screen_ops.c
@@ -681,7 +681,7 @@ static bool actionzone_area_poll(bContext *C)
     const int *xy = &win->eventstate->x;
     AZone *az;
 
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
       for (az = area->actionzones.first; az; az = az->next) {
         if (BLI_rcti_isect_pt_v(&az->rect, xy)) {
           return 1;
@@ -895,7 +895,7 @@ static AZone *area_actionzone_refresh_xy(ScrArea *area, const int xy[2], const b
 /* Finds an action-zone by position in entire screen so azones can overlap. */
 static AZone *screen_actionzone_find_xy(bScreen *screen, const int xy[2])
 {
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
     AZone *az = area_actionzone_refresh_xy(area, xy, true);
     if (az != NULL) {
       return az;
@@ -907,8 +907,8 @@ static AZone *screen_actionzone_find_xy(bScreen *screen, const int xy[2])
 /* Returns the area that the azone belongs to */
 static ScrArea *screen_actionzone_area(bScreen *screen, const AZone *az)
 {
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-    for (AZone *zone = area->actionzones.first; zone; zone = zone->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+    LISTBASE_FOREACH (AZone *, zone, &area->actionzones) {
       if (zone == az) {
         return area;
       }
@@ -1470,7 +1470,7 @@ static void area_move_set_limits(wmWindow *win,
 
   if (use_bigger_smaller_snap != NULL) {
     *use_bigger_smaller_snap = false;
-    for (ScrArea *area = win->global_areas.areabase.first; area; area = area->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &win->global_areas.areabase) {
       int size_min = ED_area_global_min_size_y(area) - 1;
       int size_max = ED_area_global_max_size_y(area) - 1;
 
@@ -1511,7 +1511,7 @@ static void area_move_set_limits(wmWindow *win,
 
   WM_window_rect_calc(win, &window_rect);
 
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
     if (dir == 'h') {
       int y1;
       areamin = areaminy;
@@ -1661,13 +1661,13 @@ static int area_snap_calc_location(const bScreen *screen,
         }
       }
 
-      for (const ScrVert *v1 = screen->vertbase.first; v1; v1 = v1->next) {
+      LISTBASE_FOREACH (const ScrVert *, v1, &screen->vertbase) {
         if (!v1->editflag) {
           continue;
         }
         const int v_loc = (&v1->vec.x)[!axis];
 
-        for (const ScrVert *v2 = screen->vertbase.first; v2; v2 = v2->next) {
+        LISTBASE_FOREACH (const ScrVert *, v2, &screen->vertbase) {
           if (v2->editflag) {
             continue;
           }
@@ -2504,7 +2504,7 @@ static int area_max_regionsize(ScrArea *area, ARegion *scalear, AZEdge edge)
 
     /* subtractwidth of regions on opposite side
      * prevents dragging regions into other opposite regions */
-    for (ARegion *region = area->regionbase.first; region; region = region->next) {
+    LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
       if (region == scalear) {
         continue;
       }
@@ -2801,11 +2801,11 @@ static void areas_do_frame_follow(bContext *C, bool middle)
   bScreen *screen_ctx = CTX_wm_screen(C);
   Scene *scene = CTX_data_scene(C);
   wmWindowManager *wm = CTX_wm_manager(C);
-  for (wmWindow *window = wm->windows.first; window; window = window->next) {
+  LISTBASE_FOREACH (wmWindow *, window, &wm->windows) {
     const bScreen *screen = WM_window_get_active_screen(window);
 
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-      for (ARegion *region = area->regionbase.first; region; region = region->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+      LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
         /* do follow here if editor type supports it */
         if ((screen_ctx->redraws_flag & TIME_FOLLOW)) {
           if ((region->regiontype == RGN_TYPE_WINDOW &&
@@ -4595,7 +4595,7 @@ static void SCREEN_OT_animation_step(wmOperatorType *ot)
 /* find window that owns the animation timer */
 bScreen *ED_screen_animation_playing(const wmWindowManager *wm)
 {
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     bScreen *screen = WM_window_get_active_screen(win);
 
     if (screen->animtimer || screen->scrubbing) {
@@ -4608,7 +4608,7 @@ bScreen *ED_screen_animation_playing(const wmWindowManager *wm)
 
 bScreen *ED_screen_animation_no_scrub(const wmWindowManager *wm)
 {
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     bScreen *screen = WM_window_get_active_screen(win);
 
     if (screen->animtimer) {
@@ -5388,7 +5388,7 @@ static int space_workspace_cycle_invoke(bContext *C, wmOperator *op, const wmEve
   ListBase ordered;
   BKE_id_ordered_list(&ordered, &bmain->workspaces);
 
-  for (LinkData *link = ordered.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &ordered) {
     if (link->data == workspace_src) {
       if (direction == SPACE_CONTEXT_CYCLE_PREV) {
         workspace_dst = (link->prev) ? link->prev->data : NULL;
diff --git a/source/blender/editors/screen/screen_user_menu.c b/source/blender/editors/screen/screen_user_menu.c
index 38d83801f2b..733e8b694a6 100644
--- a/source/blender/editors/screen/screen_user_menu.c
+++ b/source/blender/editors/screen/screen_user_menu.c
@@ -113,7 +113,7 @@ bUserMenuItem_Op *ED_screen_user_menu_item_find_operator(ListBase *lb,
                                                          IDProperty *prop,
                                                          short opcontext)
 {
-  for (bUserMenuItem *umi = lb->first; umi; umi = umi->next) {
+  LISTBASE_FOREACH (bUserMenuItem *, umi, lb) {
     if (umi->type == USER_MENU_TYPE_OPERATOR) {
       bUserMenuItem_Op *umi_op = (bUserMenuItem_Op *)umi;
       if (STREQ(ot->idname, umi_op->op_idname) && (opcontext == umi_op->opcontext) &&
@@ -128,7 +128,7 @@ bUserMenuItem_Op *ED_screen_user_menu_item_find_operator(ListBase *lb,
 struct bUserMenuItem_Menu *ED_screen_user_menu_item_find_menu(struct ListBase *lb,
                                                               const struct MenuType *mt)
 {
-  for (bUserMenuItem *umi = lb->first; umi; umi = umi->next) {
+  LISTBASE_FOREACH (bUserMenuItem *, umi, lb) {
     if (umi->type == USER_MENU_TYPE_MENU) {
       bUserMenuItem_Menu *umi_mt = (bUserMenuItem_Menu *)umi;
       if (STREQ(mt->idname, umi_mt->mt_idname)) {
@@ -144,7 +144,7 @@ struct bUserMenuItem_Prop *ED_screen_user_menu_item_find_prop(struct ListBase *l
                                                               const char *prop_id,
                                                               int prop_index)
 {
-  for (bUserMenuItem *umi = lb->first; umi; umi = umi->next) {
+  LISTBASE_FOREACH (bUserMenuItem *, umi, lb) {
     if (umi->type == USER_MENU_TYPE_PROP) {
       bUserMenuItem_Prop *umi_pr = (bUserMenuItem_Prop *)umi;
       if (STREQ(context_data_path, umi_pr->context_data_path) && STREQ(prop_id, umi_pr->prop_id) &&
@@ -222,7 +222,7 @@ static void screen_user_menu_draw(const bContext *C, Menu *menu)
     if (um == NULL) {
       continue;
     }
-    for (bUserMenuItem *umi = um->items.first; umi; umi = umi->next) {
+    LISTBASE_FOREACH (bUserMenuItem *, umi, &um->items) {
       const char *ui_name = umi->ui_name[0] ? umi->ui_name : NULL;
       if (umi->type == USER_MENU_TYPE_OPERATOR) {
         bUserMenuItem_Op *umi_op = (bUserMenuItem_Op *)umi;
diff --git a/source/blender/editors/screen/workspace_edit.c b/source/blender/editors/screen/workspace_edit.c
index 784fa60999d..8feef0c675a 100644
--- a/source/blender/editors/screen/workspace_edit.c
+++ b/source/blender/editors/screen/workspace_edit.c
@@ -198,8 +198,7 @@ WorkSpace *ED_workspace_duplicate(WorkSpace *workspace_old, Main *bmain, wmWindo
 
   /* TODO(campbell): tools */
 
-  for (WorkSpaceLayout *layout_old = layouts_old->first; layout_old;
-       layout_old = layout_old->next) {
+  LISTBASE_FOREACH (WorkSpaceLayout *, layout_old, layouts_old) {
     WorkSpaceLayout *layout_new = ED_workspace_layout_duplicate(
         bmain, workspace_new, layout_old, win);
 
@@ -222,7 +221,7 @@ bool ED_workspace_delete(WorkSpace *workspace, Main *bmain, bContext *C, wmWindo
   ListBase ordered;
   BKE_id_ordered_list(&ordered, &bmain->workspaces);
   WorkSpace *prev = NULL, *next = NULL;
-  for (LinkData *link = ordered.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &ordered) {
     if (link->data == workspace) {
       prev = link->prev ? link->prev->data : NULL;
       next = link->next ? link->next->data : NULL;
@@ -232,7 +231,7 @@ bool ED_workspace_delete(WorkSpace *workspace, Main *bmain, bContext *C, wmWindo
   BLI_freelistN(&ordered);
   BLI_assert((prev != NULL) || (next != NULL));
 
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     WorkSpace *workspace_active = WM_window_get_active_workspace(win);
     if (workspace_active == workspace) {
       ED_workspace_change((prev != NULL) ? prev : next, C, wm, win);
@@ -481,7 +480,7 @@ static int workspace_add_invoke(bContext *C, wmOperator *op, const wmEvent *UNUS
   ListBase templates;
   BKE_appdir_app_templates(&templates);
 
-  for (LinkData *link = templates.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &templates) {
     char *template = link->data;
     char display_name[FILE_MAX];
 
diff --git a/source/blender/editors/screen/workspace_layout_edit.c b/source/blender/editors/screen/workspace_layout_edit.c
index 1e85a6e256f..cf9637788a9 100644
--- a/source/blender/editors/screen/workspace_layout_edit.c
+++ b/source/blender/editors/screen/workspace_layout_edit.c
@@ -68,7 +68,7 @@ WorkSpaceLayout *ED_workspace_layout_duplicate(Main *bmain,
   screen_new = BKE_workspace_layout_screen_get(layout_new);
 
   if (BKE_screen_is_fullscreen_area(screen_old)) {
-    for (ScrArea *area_old = screen_old->areabase.first; area_old; area_old = area_old->next) {
+    LISTBASE_FOREACH (ScrArea *, area_old, &screen_old->areabase) {
       if (area_old->full) {
         ScrArea *area_new = (ScrArea *)screen_new->areabase.first;
         ED_area_data_copy(area_new, area_old, true);
diff --git a/source/blender/editors/sculpt_paint/paint_image.c b/source/blender/editors/sculpt_paint/paint_image.c
index 9c41989fcd4..4d4af028570 100644
--- a/source/blender/editors/sculpt_paint/paint_image.c
+++ b/source/blender/editors/sculpt_paint/paint_image.c
@@ -808,10 +808,10 @@ void ED_space_image_paint_update(Main *bmain, wmWindowManager *wm, Scene *scene)
   ImagePaintSettings *imapaint = &settings->imapaint;
   bool enabled = false;
 
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     bScreen *screen = WM_window_get_active_screen(win);
 
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
       if (area->spacetype == SPACE_IMAGE) {
         if (((SpaceImage *)area->spacedata.first)->mode == SI_MODE_PAINT) {
           enabled = true;
diff --git a/source/blender/editors/sculpt_paint/paint_ops.c b/source/blender/editors/sculpt_paint/paint_ops.c
index cc848b80bb3..d607b6a9d6f 100644
--- a/source/blender/editors/sculpt_paint/paint_ops.c
+++ b/source/blender/editors/sculpt_paint/paint_ops.c
@@ -397,7 +397,7 @@ static int palette_sort_exec(bContext *C, wmOperator *op)
     color_array = MEM_calloc_arrayN(totcol, sizeof(tPaletteColorHSV), __func__);
     /* Put all colors in an array. */
     int t = 0;
-    for (PaletteColor *color = palette->colors.first; color; color = color->next) {
+    LISTBASE_FOREACH (PaletteColor *, color, &palette->colors) {
       float h, s, v;
       rgb_to_hsv(color->rgb[0], color->rgb[1], color->rgb[2], &h, &s, &v);
       col_elm = &color_array[t];
@@ -543,7 +543,7 @@ static int palette_join_exec(bContext *C, wmOperator *op)
   const int totcol = BLI_listbase_count(&palette_join->colors);
 
   if (totcol > 0) {
-    for (PaletteColor *color = palette_join->colors.first; color; color = color->next) {
+    LISTBASE_FOREACH (PaletteColor *, color, &palette_join->colors) {
       PaletteColor *palcol = BKE_palette_color_add(palette);
       if (palcol) {
         copy_v3_v3(palcol->rgb, color->rgb);
diff --git a/source/blender/editors/sculpt_paint/sculpt.c b/source/blender/editors/sculpt_paint/sculpt.c
index a981e722b1c..2b5d576f7c2 100644
--- a/source/blender/editors/sculpt_paint/sculpt.c
+++ b/source/blender/editors/sculpt_paint/sculpt.c
@@ -7821,9 +7821,9 @@ static void sculpt_flush_update_done(const bContext *C, Object *ob, SculptUpdate
     rv3d->rflag &= ~RV3D_PAINTING;
   }
 
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     bScreen *screen = WM_window_get_active_screen(win);
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
       SpaceLink *sl = area->spacedata.first;
       if (sl->spacetype == SPACE_VIEW3D) {
         View3D *v3d = (View3D *)sl;
@@ -7834,7 +7834,7 @@ static void sculpt_flush_update_done(const bContext *C, Object *ob, SculptUpdate
         /* Tag all 3D viewports for redraw now that we are done. Others
          * viewports did not get a full redraw, and anti-aliasing for the
          * current viewport was deactivated. */
-        for (ARegion *region = area->regionbase.first; region; region = region->next) {
+        LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
           if (region->regiontype == RGN_TYPE_WINDOW) {
             ED_region_tag_redraw(region);
           }
diff --git a/source/blender/editors/space_action/action_draw.c b/source/blender/editors/space_action/action_draw.c
index 605d239133a..52287b07b28 100644
--- a/source/blender/editors/space_action/action_draw.c
+++ b/source/blender/editors/space_action/action_draw.c
@@ -561,7 +561,7 @@ void timeline_draw_cache(SpaceAction *saction, Object *ob, Scene *scene)
   /* Iterate over pointcaches on the active object, and draw each one's range. */
   float y_offset = 0.0f;
   const float cache_draw_height = 4.0f * UI_DPI_FAC * U.pixelsize;
-  for (PTCacheID *pid = pidlist.first; pid; pid = pid->next) {
+  LISTBASE_FOREACH (PTCacheID *, pid, &pidlist) {
     if (timeline_cache_is_hidden_by_setting(saction, pid)) {
       continue;
     }
diff --git a/source/blender/editors/space_action/action_select.c b/source/blender/editors/space_action/action_select.c
index 173c2f1b5dc..26c29d6cbe7 100644
--- a/source/blender/editors/space_action/action_select.c
+++ b/source/blender/editors/space_action/action_select.c
@@ -437,7 +437,7 @@ static void box_select_elem(
         ListBase anim_data = {NULL, NULL};
         ANIM_animdata_filter(ac, &anim_data, ANIMFILTER_DATA_VISIBLE, ac->data, ac->datatype);
 
-        for (bAnimListElem *ale2 = anim_data.first; ale2; ale2 = ale2->next) {
+        LISTBASE_FOREACH (bAnimListElem *, ale2, &anim_data) {
           box_select_elem(sel_data, ale2, xmin, xmax, true);
         }
 
@@ -675,7 +675,7 @@ static void region_select_elem(RegionSelectData *sel_data, bAnimListElem *ale, b
         ListBase anim_data = {NULL, NULL};
         ANIM_animdata_filter(ac, &anim_data, ANIMFILTER_DATA_VISIBLE, ac->data, ac->datatype);
 
-        for (bAnimListElem *ale2 = anim_data.first; ale2; ale2 = ale2->next) {
+        LISTBASE_FOREACH (bAnimListElem *, ale2, &anim_data) {
           region_select_elem(sel_data, ale2, true);
         }
 
diff --git a/source/blender/editors/space_action/space_action.c b/source/blender/editors/space_action/space_action.c
index f3304a48cac..e92ea906237 100644
--- a/source/blender/editors/space_action/space_action.c
+++ b/source/blender/editors/space_action/space_action.c
@@ -563,7 +563,7 @@ static void action_listener(wmWindow *UNUSED(win),
           ED_area_tag_redraw(area);
           break;
         case ND_FRAME_RANGE:
-          for (ARegion *region = area->regionbase.first; region; region = region->next) {
+          LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
             if (region->regiontype == RGN_TYPE_WINDOW) {
               Scene *scene = wmn->reference;
               region->v2d.tot.xmin = (float)(SFRA - 4);
diff --git a/source/blender/editors/space_buttons/space_buttons.c b/source/blender/editors/space_buttons/space_buttons.c
index c8488fc13a4..c06c107d4a3 100644
--- a/source/blender/editors/space_buttons/space_buttons.c
+++ b/source/blender/editors/space_buttons/space_buttons.c
@@ -312,7 +312,7 @@ static void buttons_navigation_bar_region_init(wmWindowManager *wm, ARegion *reg
 
 static void buttons_navigation_bar_region_draw(const bContext *C, ARegion *region)
 {
-  for (PanelType *pt = region->type->paneltypes.first; pt; pt = pt->next) {
+  LISTBASE_FOREACH (PanelType *, pt, &region->type->paneltypes) {
     pt->flag |= PNL_LAYOUT_VERT_BAR;
   }
 
diff --git a/source/blender/editors/space_clip/clip_editor.c b/source/blender/editors/space_clip/clip_editor.c
index 0453e58d3fb..ffc50407917 100644
--- a/source/blender/editors/space_clip/clip_editor.c
+++ b/source/blender/editors/space_clip/clip_editor.c
@@ -311,10 +311,10 @@ void ED_clip_update_frame(const Main *mainp, int cfra)
 {
   /* image window, compo node users */
   for (wmWindowManager *wm = mainp->wm.first; wm; wm = wm->id.next) { /* only 1 wm */
-    for (wmWindow *win = wm->windows.first; win; win = win->next) {
+    LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
       bScreen *screen = WM_window_get_active_screen(win);
 
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
         if (area->spacetype == SPACE_CLIP) {
           SpaceClip *sc = area->spacedata.first;
 
diff --git a/source/blender/editors/space_image/image_ops.c b/source/blender/editors/space_image/image_ops.c
index 38f67623c99..67e64c52051 100644
--- a/source/blender/editors/space_image/image_ops.c
+++ b/source/blender/editors/space_image/image_ops.c
@@ -1275,7 +1275,7 @@ static Image *image_open_single(Main *bmain,
     if ((range->length > 1) && (ima->source == IMA_SRC_FILE)) {
       if (range->udim_tiles.first && range->offset == 1001) {
         ima->source = IMA_SRC_TILED;
-        for (LinkData *node = range->udim_tiles.first; node; node = node->next) {
+        LISTBASE_FOREACH (LinkData *, node, &range->udim_tiles) {
           BKE_image_add_tile(ima, POINTER_AS_INT(node->data), NULL);
         }
       }
@@ -1309,7 +1309,7 @@ static int image_open_exec(bContext *C, wmOperator *op)
   }
 
   ListBase ranges = ED_image_filesel_detect_sequences(bmain, op, use_udim);
-  for (ImageFrameRange *range = ranges.first; range; range = range->next) {
+  LISTBASE_FOREACH (ImageFrameRange *, range, &ranges) {
     Image *ima_range = image_open_single(
         bmain, op, range, BKE_main_blendfile_path(bmain), is_relative_path, use_multiview);
 
@@ -1359,7 +1359,7 @@ static int image_open_exec(bContext *C, wmOperator *op)
     if (iuser == NULL) {
       Camera *cam = CTX_data_pointer_get_type(C, "camera", &RNA_Camera).data;
       if (cam) {
-        for (CameraBGImage *bgpic = cam->bg_images.first; bgpic; bgpic = bgpic->next) {
+        LISTBASE_FOREACH (CameraBGImage *, bgpic, &cam->bg_images) {
           if (bgpic->ima == ima) {
             iuser = &bgpic->iuser;
             break;
diff --git a/source/blender/editors/space_image/image_sequence.c b/source/blender/editors/space_image/image_sequence.c
index 245495bd179..8b298045597 100644
--- a/source/blender/editors/space_image/image_sequence.c
+++ b/source/blender/editors/space_image/image_sequence.c
@@ -226,7 +226,7 @@ ListBase ED_image_filesel_detect_sequences(Main *bmain, wmOperator *op, const bo
     const bool was_relative = BLI_path_is_rel(filepath);
 
     image_sequence_get_frame_ranges(op, &ranges);
-    for (ImageFrameRange *range = ranges.first; range; range = range->next) {
+    LISTBASE_FOREACH (ImageFrameRange *, range, &ranges) {
       image_detect_frame_range(range, detect_udim);
       BLI_freelistN(&range->frames);
 
diff --git a/source/blender/editors/space_image/image_undo.c b/source/blender/editors/space_image/image_undo.c
index 5f81c19290b..056dd826238 100644
--- a/source/blender/editors/space_image/image_undo.c
+++ b/source/blender/editors/space_image/image_undo.c
@@ -145,7 +145,7 @@ static void ptile_free_list(ListBase *paint_tiles)
 
 static void ptile_invalidate_list(ListBase *paint_tiles)
 {
-  for (PaintTile *ptile = paint_tiles->first; ptile; ptile = ptile->next) {
+  LISTBASE_FOREACH (PaintTile *, ptile, paint_tiles) {
     ptile->valid = false;
   }
 }
@@ -159,7 +159,7 @@ void *ED_image_paint_tile_find(ListBase *paint_tiles,
                                ushort **r_mask,
                                bool validate)
 {
-  for (PaintTile *ptile = paint_tiles->first; ptile; ptile = ptile->next) {
+  LISTBASE_FOREACH (PaintTile *, ptile, paint_tiles) {
     if (ptile->x_tile == x_tile && ptile->y_tile == y_tile) {
       if (ptile->image == image && ptile->ibuf == ibuf && ptile->iuser.tile == iuser->tile) {
         if (r_mask) {
@@ -267,7 +267,7 @@ static void ptile_restore_runtime_list(ListBase *paint_tiles)
 {
   ImBuf *tmpibuf = imbuf_alloc_temp_tile();
 
-  for (PaintTile *ptile = paint_tiles->first; ptile; ptile = ptile->next) {
+  LISTBASE_FOREACH (PaintTile *, ptile, paint_tiles) {
     Image *image = ptile->image;
     ImBuf *ibuf = BKE_image_acquire_ibuf(image, &ptile->iuser, NULL);
     const bool has_float = (ibuf->rect_float != NULL);
@@ -542,7 +542,7 @@ static void uhandle_restore_list(ListBase *undo_handles, bool use_init)
 {
   ImBuf *tmpibuf = imbuf_alloc_temp_tile();
 
-  for (UndoImageHandle *uh = undo_handles->first; uh; uh = uh->next) {
+  LISTBASE_FOREACH (UndoImageHandle *, uh, undo_handles) {
     /* Tiles only added to second set of tiles. */
     Image *image = uh->image_ref.ptr;
 
@@ -552,7 +552,7 @@ static void uhandle_restore_list(ListBase *undo_handles, bool use_init)
       continue;
     }
     bool changed = false;
-    for (UndoImageBuf *ubuf_iter = uh->buffers.first; ubuf_iter; ubuf_iter = ubuf_iter->next) {
+    LISTBASE_FOREACH (UndoImageBuf *, ubuf_iter, &uh->buffers) {
       UndoImageBuf *ubuf = use_init ? ubuf_iter : ubuf_iter->post;
       ubuf_ensure_compat_ibuf(ubuf, ibuf);
 
@@ -611,7 +611,7 @@ static UndoImageBuf *uhandle_lookup_ubuf(UndoImageHandle *uh,
                                          const Image *UNUSED(image),
                                          const char *ibuf_name)
 {
-  for (UndoImageBuf *ubuf = uh->buffers.first; ubuf; ubuf = ubuf->next) {
+  LISTBASE_FOREACH (UndoImageBuf *, ubuf, &uh->buffers) {
     if (STREQ(ubuf->ibuf_name, ibuf_name)) {
       return ubuf;
     }
@@ -643,7 +643,7 @@ static UndoImageHandle *uhandle_lookup_by_name(ListBase *undo_handles,
                                                const Image *image,
                                                int tile_number)
 {
-  for (UndoImageHandle *uh = undo_handles->first; uh; uh = uh->next) {
+  LISTBASE_FOREACH (UndoImageHandle *, uh, undo_handles) {
     if (STREQ(image->id.name + 2, uh->image_ref.name + 2) && uh->iuser.tile == tile_number) {
       return uh;
     }
@@ -653,7 +653,7 @@ static UndoImageHandle *uhandle_lookup_by_name(ListBase *undo_handles,
 
 static UndoImageHandle *uhandle_lookup(ListBase *undo_handles, const Image *image, int tile_number)
 {
-  for (UndoImageHandle *uh = undo_handles->first; uh; uh = uh->next) {
+  LISTBASE_FOREACH (UndoImageHandle *, uh, undo_handles) {
     if (image == uh->image_ref.ptr && uh->iuser.tile == tile_number) {
       return uh;
     }
@@ -799,8 +799,8 @@ static bool image_undosys_step_encode(struct bContext *C,
     }
     BLI_listbase_clear(&us->paint_tiles);
 
-    for (UndoImageHandle *uh = us->handles.first; uh; uh = uh->next) {
-      for (UndoImageBuf *ubuf_pre = uh->buffers.first; ubuf_pre; ubuf_pre = ubuf_pre->next) {
+    LISTBASE_FOREACH (UndoImageHandle *, uh, &us->handles) {
+      LISTBASE_FOREACH (UndoImageBuf *, ubuf_pre, &uh->buffers) {
 
         ImBuf *ibuf = BKE_image_acquire_ibuf(uh->image_ref.ptr, &uh->iuser, NULL);
 
@@ -979,7 +979,7 @@ static void image_undosys_foreach_ID_ref(UndoStep *us_p,
                                          void *user_data)
 {
   ImageUndoStep *us = (ImageUndoStep *)us_p;
-  for (UndoImageHandle *uh = us->handles.first; uh; uh = uh->next) {
+  LISTBASE_FOREACH (UndoImageHandle *, uh, &us->handles) {
     foreach_ID_ref_fn(user_data, ((UndoRefID *)&uh->image_ref));
   }
 }
diff --git a/source/blender/editors/space_info/info_report.c b/source/blender/editors/space_info/info_report.c
index 7499c057950..adc6391a0f6 100644
--- a/source/blender/editors/space_info/info_report.c
+++ b/source/blender/editors/space_info/info_report.c
@@ -250,7 +250,7 @@ static int box_select_exec(bContext *C, wmOperator *op)
   const eSelectOp sel_op = RNA_enum_get(op->ptr, "mode");
   const int select = (sel_op != SEL_OP_SUB);
   if (SEL_OP_USE_PRE_DESELECT(sel_op)) {
-    for (Report *report = reports->list.first; report; report = report->next) {
+    LISTBASE_FOREACH (Report *, report, &reports->list) {
       if ((report->type & report_mask) == 0) {
         continue;
       }
@@ -264,7 +264,7 @@ static int box_select_exec(bContext *C, wmOperator *op)
   /* get the first report if none found */
   if (report_min == NULL) {
     // printf("find_min\n");
-    for (Report *report = reports->list.first; report; report = report->next) {
+    LISTBASE_FOREACH (Report *, report, &reports->list) {
       if (report->type & report_mask) {
         report_min = report;
         break;
diff --git a/source/blender/editors/space_nla/nla_channels.c b/source/blender/editors/space_nla/nla_channels.c
index d08d39700d6..5adcec8a5d7 100644
--- a/source/blender/editors/space_nla/nla_channels.c
+++ b/source/blender/editors/space_nla/nla_channels.c
@@ -146,7 +146,7 @@ static int mouse_nla_channels(
         else {
           /* deselect all */
           /* TODO: should this deselect all other types of channels too? */
-          for (Base *b = view_layer->object_bases.first; b; b = b->next) {
+          LISTBASE_FOREACH (Base *, b, &view_layer->object_bases) {
             ED_object_base_select(b, BA_DESELECT);
             if (b->object->adt) {
               b->object->adt->flag &= ~(ADT_UI_SELECTED | ADT_UI_ACTIVE);
diff --git a/source/blender/editors/space_nla/nla_draw.c b/source/blender/editors/space_nla/nla_draw.c
index 5a59ba6b553..5c4ccd96534 100644
--- a/source/blender/editors/space_nla/nla_draw.c
+++ b/source/blender/editors/space_nla/nla_draw.c
@@ -150,7 +150,7 @@ static void nla_action_draw_keyframes(
     /* - disregard the selection status of keyframes so they draw a certain way
      * - size is 6.0f which is smaller than the editable keyframes, so that there is a distinction
      */
-    for (ActKeyColumn *ak = keys.first; ak; ak = ak->next) {
+    LISTBASE_FOREACH (ActKeyColumn *, ak, &keys) {
       draw_keyframe_shape(ak->cfra,
                           y,
                           6.0f,
@@ -207,7 +207,7 @@ static void nla_actionclip_draw_markers(
   immUniformThemeColorShade(TH_STRIP_SELECT, shade);
 
   immBeginAtMost(GPU_PRIM_LINES, BLI_listbase_count(&act->markers) * 2);
-  for (TimeMarker *marker = act->markers.first; marker; marker = marker->next) {
+  LISTBASE_FOREACH (TimeMarker *, marker, &act->markers) {
     if ((marker->frame > strip->actstart) && (marker->frame < strip->actend)) {
       float frame = nlastrip_get_frame(strip, marker->frame, NLATIME_CONVERT_MAP);
 
@@ -238,7 +238,7 @@ static void nla_strip_draw_markers(NlaStrip *strip, float yminc, float ymaxc)
     /* just a solid color, so that it is very easy to spot */
     int shade = 20;
     /* draw the markers in the first level of strips only (if they are actions) */
-    for (NlaStrip *nls = strip->strips.first; nls; nls = nls->next) {
+    LISTBASE_FOREACH (NlaStrip *, nls, &strip->strips) {
       if (nls->type == NLASTRIP_TYPE_CLIP) {
         nla_actionclip_draw_markers(nls, yminc, ymaxc, shade, false);
       }
@@ -565,7 +565,7 @@ static void nla_draw_strip(SpaceNla *snla,
     immBeginAtMost(GPU_PRIM_LINES, 4 * BLI_listbase_count(&strip->strips));
 
     /* only draw first-level of child-strips, but don't draw any lines on the endpoints */
-    for (NlaStrip *cs = strip->strips.first; cs; cs = cs->next) {
+    LISTBASE_FOREACH (NlaStrip *, cs, &strip->strips) {
       /* draw start-line if not same as end of previous (and only if not the first strip)
        * - on upper half of strip
        */
diff --git a/source/blender/editors/space_nla/nla_select.c b/source/blender/editors/space_nla/nla_select.c
index 09abfc300c7..ec41368b9f0 100644
--- a/source/blender/editors/space_nla/nla_select.c
+++ b/source/blender/editors/space_nla/nla_select.c
@@ -308,7 +308,7 @@ static void nlaedit_strip_at_region_position(
     if (ale->type == ANIMTYPE_NLATRACK) {
       NlaTrack *nlt = (NlaTrack *)ale->data;
 
-      for (NlaStrip *strip = nlt->strips.first; strip; strip = strip->next) {
+      LISTBASE_FOREACH (NlaStrip *, strip, &nlt->strips) {
         if (BKE_nlastrip_within_bounds(strip, xmin, xmax)) {
           *r_ale = ale;
           *r_strip = strip;
diff --git a/source/blender/editors/space_node/node_edit.c b/source/blender/editors/space_node/node_edit.c
index c231314ba59..a82acfc4dbe 100644
--- a/source/blender/editors/space_node/node_edit.c
+++ b/source/blender/editors/space_node/node_edit.c
@@ -1326,7 +1326,7 @@ void NODE_OT_duplicate(wmOperatorType *ot)
 
 bool ED_node_select_check(ListBase *lb)
 {
-  for (bNode *node = lb->first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, lb) {
     if (node->flag & NODE_SELECT) {
       return true;
     }
@@ -1346,7 +1346,7 @@ void ED_node_select_all(ListBase *lb, int action)
     }
   }
 
-  for (bNode *node = lb->first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, lb) {
     switch (action) {
       case SEL_SELECT:
         nodeSetSelected(node, true);
diff --git a/source/blender/editors/space_node/node_relationships.c b/source/blender/editors/space_node/node_relationships.c
index 03a99a74614..8f8f945a600 100644
--- a/source/blender/editors/space_node/node_relationships.c
+++ b/source/blender/editors/space_node/node_relationships.c
@@ -466,7 +466,7 @@ static int node_link_viewer(const bContext *C, bNode *tonode)
 
   if (tonode) {
     /* Find a selected socket that overrides the socket to connect to */
-    for (bNodeSocket *sock2 = tonode->outputs.first; sock2; sock2 = sock2->next) {
+    LISTBASE_FOREACH (bNodeSocket *, sock2, &tonode->outputs) {
       if (!nodeSocketIsHidden(sock2) && sock2->flag & SELECT) {
         sock = sock2;
         break;
diff --git a/source/blender/editors/space_node/node_select.c b/source/blender/editors/space_node/node_select.c
index 43daedfa1c2..38ec855e845 100644
--- a/source/blender/editors/space_node/node_select.c
+++ b/source/blender/editors/space_node/node_select.c
@@ -623,7 +623,7 @@ static int node_box_select_exec(bContext *C, wmOperator *op)
     ED_node_select_all(&snode->edittree->nodes, SEL_DESELECT);
   }
 
-  for (bNode *node = snode->edittree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &snode->edittree->nodes) {
     bool is_inside;
     if (node->type == NODE_FRAME) {
       is_inside = BLI_rctf_inside_rctf(&rectf, &node->totr);
diff --git a/source/blender/editors/space_outliner/outliner_collections.c b/source/blender/editors/space_outliner/outliner_collections.c
index 8563b7d8c24..5a0ed954909 100644
--- a/source/blender/editors/space_outliner/outliner_collections.c
+++ b/source/blender/editors/space_outliner/outliner_collections.c
@@ -336,8 +336,7 @@ static int collection_delete_exec(bContext *C, wmOperator *op)
           skip = true;
         }
         else {
-          for (CollectionParent *cparent = collection->parents.first; cparent;
-               cparent = cparent->next) {
+          LISTBASE_FOREACH (CollectionParent *, cparent, &collection->parents) {
             Collection *parent = cparent->collection;
             if (ID_IS_LINKED(parent)) {
               skip = true;
@@ -848,7 +847,7 @@ static bool collections_indirect_only_clear_poll(bContext *C)
 
 static void layer_collection_flag_recursive_set(LayerCollection *lc, int flag)
 {
-  for (LayerCollection *nlc = lc->layer_collections.first; nlc; nlc = nlc->next) {
+  LISTBASE_FOREACH (LayerCollection *, nlc, &lc->layer_collections) {
     if (lc->flag & flag) {
       nlc->flag |= flag;
     }
@@ -1468,14 +1467,13 @@ static int outliner_unhide_all_exec(bContext *C, wmOperator *UNUSED(op))
 
   /* Unhide all the collections. */
   LayerCollection *lc_master = view_layer->layer_collections.first;
-  for (LayerCollection *lc_iter = lc_master->layer_collections.first; lc_iter;
-       lc_iter = lc_iter->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc_iter, &lc_master->layer_collections) {
     lc_iter->flag &= ~LAYER_COLLECTION_HIDE;
     layer_collection_flag_recursive_set(lc_iter, LAYER_COLLECTION_HIDE);
   }
 
   /* Unhide all objects. */
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     base->flag &= ~BASE_HIDDEN;
   }
 
diff --git a/source/blender/editors/space_outliner/outliner_dragdrop.c b/source/blender/editors/space_outliner/outliner_dragdrop.c
index 6f071ca128e..b6f5ac25c3c 100644
--- a/source/blender/editors/space_outliner/outliner_dragdrop.c
+++ b/source/blender/editors/space_outliner/outliner_dragdrop.c
@@ -263,8 +263,7 @@ static bool parent_drop_allowed(TreeElement *te, Object *potential_child)
    * element for object it means that all displayed objects belong to
    * active scene and parenting them is allowed (sergey) */
   if (scene) {
-    for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-         view_layer = view_layer->next) {
+    LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
       if (BKE_view_layer_base_find(view_layer, potential_child)) {
         return true;
       }
@@ -481,7 +480,7 @@ static int parent_clear_invoke(bContext *C, wmOperator *UNUSED(op), const wmEven
   ListBase *lb = event->customdata;
   wmDrag *drag = lb->first;
 
-  for (wmDragID *drag_id = drag->ids.first; drag_id; drag_id = drag_id->next) {
+  LISTBASE_FOREACH (wmDragID *, drag_id, &drag->ids) {
     if (GS(drag_id->id->name) == ID_OB) {
       Object *object = (Object *)drag_id->id;
 
@@ -548,8 +547,7 @@ static int scene_drop_invoke(bContext *C, wmOperator *UNUSED(op), const wmEvent
 
   BKE_collection_object_add(bmain, collection, ob);
 
-  for (ViewLayer *view_layer = scene->view_layers.first; view_layer;
-       view_layer = view_layer->next) {
+  LISTBASE_FOREACH (ViewLayer *, view_layer, &scene->view_layers) {
     Base *base = BKE_view_layer_base_find(view_layer, ob);
     if (base) {
       ED_object_base_select(base, BA_SELECT);
@@ -817,7 +815,7 @@ static int collection_drop_invoke(bContext *C, wmOperator *UNUSED(op), const wmE
     TREESTORE(data.te)->flag &= ~TSE_CLOSED;
   }
 
-  for (wmDragID *drag_id = drag->ids.first; drag_id; drag_id = drag_id->next) {
+  LISTBASE_FOREACH (wmDragID *, drag_id, &drag->ids) {
     /* Ctrl enables linking, so we don't need a from collection then. */
     Collection *from = (event->ctrl) ? NULL : collection_parent_from_ID(drag_id->from_parent);
 
diff --git a/source/blender/editors/space_outliner/outliner_draw.c b/source/blender/editors/space_outliner/outliner_draw.c
index 3c569a71e93..ce83cfc3c97 100644
--- a/source/blender/editors/space_outliner/outliner_draw.c
+++ b/source/blender/editors/space_outliner/outliner_draw.c
@@ -91,7 +91,7 @@ static void outliner_tree_dimensions_impl(SpaceOutliner *soops,
                                           int *width,
                                           int *height)
 {
-  for (TreeElement *te = lb->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, lb) {
     *width = MAX2(*width, te->xend);
     if (height != NULL) {
       *height += UI_UNIT_Y;
@@ -387,8 +387,7 @@ static void outliner_collection_set_flag_recursive(Scene *scene,
   if (base_or_object_prop) {
     /* Note: We can't use BKE_collection_object_cache_get()
      * otherwise we would not take collection exclusion into account. */
-    for (CollectionObject *cob = layer_collection->collection->gobject.first; cob;
-         cob = cob->next) {
+    LISTBASE_FOREACH (CollectionObject *, cob, &layer_collection->collection->gobject) {
 
       outliner_base_or_object_pointer_create(view_layer, collection, cob->ob, &ptr);
       RNA_property_boolean_set(&ptr, base_or_object_prop, value);
@@ -401,7 +400,7 @@ static void outliner_collection_set_flag_recursive(Scene *scene,
 
   /* Keep going recursively. */
   ListBase *lb = (layer_collection ? &layer_collection->layer_collections : &collection->children);
-  for (Link *link = lb->first; link; link = link->next) {
+  LISTBASE_FOREACH (Link *, link, lb) {
     LayerCollection *layer_collection_iter = layer_collection ? (LayerCollection *)link : NULL;
     Collection *collection_iter = layer_collection ?
                                       (collection ? layer_collection_iter->collection : NULL) :
@@ -467,7 +466,7 @@ static bool outliner_collection_is_isolated(Scene *scene,
 
   /* Keep going recursively. */
   ListBase *lb = (layer_collection ? &layer_collection->layer_collections : &collection->children);
-  for (Link *link = lb->first; link; link = link->next) {
+  LISTBASE_FOREACH (Link *, link, lb) {
     LayerCollection *layer_collection_iter = layer_collection ? (LayerCollection *)link : NULL;
     Collection *collection_iter = layer_collection ?
                                       (collection ? layer_collection_iter->collection : NULL) :
@@ -542,8 +541,7 @@ void outliner_collection_isolate_flag(Scene *scene,
   /* Make this collection direct parents also "visible". */
   if (layer_collection) {
     LayerCollection *lc_parent = layer_collection;
-    for (LayerCollection *lc_iter = top_layer_collection->layer_collections.first; lc_iter;
-         lc_iter = lc_iter->next) {
+    LISTBASE_FOREACH (LayerCollection *, lc_iter, &top_layer_collection->layer_collections) {
       if (BKE_layer_collection_has_layer_collection(lc_iter, layer_collection)) {
         lc_parent = lc_iter;
         break;
@@ -555,8 +553,7 @@ void outliner_collection_isolate_flag(Scene *scene,
           scene, lc_parent, collection ? lc_parent->collection : NULL, &ptr);
       RNA_property_boolean_set(&ptr, layer_or_collection_prop, !is_hide);
 
-      for (LayerCollection *lc_iter = lc_parent->layer_collections.first; lc_iter;
-           lc_iter = lc_iter->next) {
+      LISTBASE_FOREACH (LayerCollection *, lc_iter, &lc_parent->layer_collections) {
         if (BKE_layer_collection_has_layer_collection(lc_iter, layer_collection)) {
           lc_parent = lc_iter;
           break;
@@ -1054,7 +1051,7 @@ static void outliner_draw_restrictbuts(uiBlock *block,
   /* Create buttons. */
   uiBut *bt;
 
-  for (TreeElement *te = lb->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, lb) {
     TreeStoreElem *tselem = TREESTORE(te);
     RestrictPropertiesActive props_active = props_active_parent;
 
@@ -1651,7 +1648,7 @@ static void outliner_draw_userbuts(uiBlock *block,
                                    ListBase *lb)
 {
 
-  for (TreeElement *te = lb->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, lb) {
     TreeStoreElem *tselem = TREESTORE(te);
     if (te->ys + 2 * UI_UNIT_Y >= region->v2d.cur.ymin && te->ys <= region->v2d.cur.ymax) {
       if (tselem->type == 0) {
@@ -1770,7 +1767,7 @@ static void outliner_draw_rnabuts(
   PointerRNA *ptr;
   PropertyRNA *prop;
 
-  for (TreeElement *te = lb->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, lb) {
     TreeStoreElem *tselem = TREESTORE(te);
     if (te->ys + 2 * UI_UNIT_Y >= region->v2d.cur.ymin && te->ys <= region->v2d.cur.ymax) {
       if (tselem->type == TSE_RNA_PROPERTY) {
@@ -2861,7 +2858,7 @@ static void outliner_draw_iconrow(bContext *C,
 {
   eOLDrawState active = OL_DRAWSEL_NONE;
 
-  for (TreeElement *te = lb->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, lb) {
     TreeStoreElem *tselem = TREESTORE(te);
 
     /* object hierarchy always, further constrained on level */
@@ -3204,7 +3201,7 @@ static void outliner_draw_tree_element(bContext *C,
   if (TSELEM_OPEN(tselem, soops)) {
     *starty -= UI_UNIT_Y;
 
-    for (TreeElement *ten = te->subtree.first; ten; ten = ten->next) {
+    LISTBASE_FOREACH (TreeElement *, ten, &te->subtree) {
       /* check if element needs to be drawn grayed out, but also gray out
        * childs of a grayed out parent (pass on draw_grayed_out to childs) */
       bool draw_childs_grayed_out = draw_grayed_out || (ten->flag & TE_DRAGGING);
@@ -3223,7 +3220,7 @@ static void outliner_draw_tree_element(bContext *C,
     }
   }
   else {
-    for (TreeElement *ten = te->subtree.first; ten; ten = ten->next) {
+    LISTBASE_FOREACH (TreeElement *, ten, &te->subtree) {
       outliner_set_coord_tree_element(ten, startx, *starty);
     }
 
@@ -3357,7 +3354,7 @@ static void outliner_draw_struct_marks(ARegion *region,
                                        ListBase *lb,
                                        int *starty)
 {
-  for (TreeElement *te = lb->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, lb) {
     TreeStoreElem *tselem = TREESTORE(te);
 
     /* selection status */
@@ -3406,7 +3403,7 @@ static void outliner_draw_highlights_recursive(uint pos,
   const bool is_searching = (SEARCHING_OUTLINER(soops) ||
                              (soops->outlinevis == SO_DATA_API && soops->search_string[0] != 0));
 
-  for (TreeElement *te = lb->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, lb) {
     const TreeStoreElem *tselem = TREESTORE(te);
     const int start_y = *io_start_y;
 
@@ -3555,7 +3552,7 @@ static void outliner_draw_tree(bContext *C,
   // items themselves
   starty = (int)region->v2d.tot.ymax - UI_UNIT_Y - OL_Y_OFFSET;
   startx = 0;
-  for (TreeElement *te = soops->tree.first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, &soops->tree) {
     outliner_draw_tree_element(C,
                                block,
                                fstyle,
diff --git a/source/blender/editors/space_outliner/outliner_edit.c b/source/blender/editors/space_outliner/outliner_edit.c
index e4e8e2a1542..60e6b423720 100644
--- a/source/blender/editors/space_outliner/outliner_edit.c
+++ b/source/blender/editors/space_outliner/outliner_edit.c
@@ -1292,7 +1292,7 @@ static void outliner_show_active(SpaceOutliner *so, ARegion *region, TreeElement
     return;
   }
 
-  for (TreeElement *ten = te->subtree.first; ten; ten = ten->next) {
+  LISTBASE_FOREACH (TreeElement *, ten, &te->subtree) {
     outliner_show_active(so, region, ten, id);
   }
 }
@@ -1310,7 +1310,7 @@ static int outliner_show_active_exec(bContext *C, wmOperator *UNUSED(op))
     ID *id = TREESTORE(active_element)->id;
 
     /* Expand all elements in the outliner with matching ID */
-    for (TreeElement *te = so->tree.first; te; te = te->next) {
+    LISTBASE_FOREACH (TreeElement *, te, &so->tree) {
       outliner_show_active(so, region, te, id);
     }
 
diff --git a/source/blender/editors/space_outliner/outliner_select.c b/source/blender/editors/space_outliner/outliner_select.c
index d50a097e6f6..ec1595eb930 100644
--- a/source/blender/editors/space_outliner/outliner_select.c
+++ b/source/blender/editors/space_outliner/outliner_select.c
@@ -1252,7 +1252,7 @@ static bool do_outliner_range_select_recursive(ListBase *lb,
                                                TreeElement *cursor,
                                                bool selecting)
 {
-  for (TreeElement *te = lb->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, lb) {
     TreeStoreElem *tselem = TREESTORE(te);
 
     if (selecting) {
@@ -1496,7 +1496,7 @@ static int outliner_box_select_exec(bContext *C, wmOperator *op)
   WM_operator_properties_border_to_rctf(op, &rectf);
   UI_view2d_region_to_view_rctf(&region->v2d, &rectf, &rectf);
 
-  for (TreeElement *te = soops->tree.first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, &soops->tree) {
     outliner_item_box_select(soops, scene, &rectf, te, select);
   }
 
diff --git a/source/blender/editors/space_outliner/outliner_sync.c b/source/blender/editors/space_outliner/outliner_sync.c
index c08c7f54405..35dd91ff061 100644
--- a/source/blender/editors/space_outliner/outliner_sync.c
+++ b/source/blender/editors/space_outliner/outliner_sync.c
@@ -96,8 +96,8 @@ void ED_outliner_select_sync_flag_outliners(const bContext *C)
   wmWindowManager *wm = CTX_wm_manager(C);
 
   for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-      for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+      LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
         if (sl->spacetype == SPACE_OUTLINER) {
           SpaceOutliner *soutliner = (SpaceOutliner *)sl;
 
@@ -319,7 +319,7 @@ static void outliner_sync_selection_from_outliner(Scene *scene,
                                                   SelectedItems *selected_items)
 {
 
-  for (TreeElement *te = tree->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, tree) {
     TreeStoreElem *tselem = TREESTORE(te);
 
     if (tselem->type == 0 && te->idcode == ID_OB) {
@@ -500,7 +500,7 @@ static void outliner_sync_selection_to_outliner(ViewLayer *view_layer,
                                                 SyncSelectActiveData *active_data,
                                                 const SyncSelectTypes *sync_types)
 {
-  for (TreeElement *te = tree->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, tree) {
     TreeStoreElem *tselem = TREESTORE(te);
 
     if (tselem->type == 0 && te->idcode == ID_OB) {
diff --git a/source/blender/editors/space_outliner/outliner_tools.c b/source/blender/editors/space_outliner/outliner_tools.c
index 730d0019f77..34ca2267b7a 100644
--- a/source/blender/editors/space_outliner/outliner_tools.c
+++ b/source/blender/editors/space_outliner/outliner_tools.c
@@ -518,7 +518,7 @@ static void merged_element_search_cb_recursive(
   char name[64];
   int iconid;
 
-  for (TreeElement *te = tree->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, tree) {
     TreeStoreElem *tselem = TREESTORE(te);
 
     if (tree_element_id_type_to_index(te) == type && tselem_type == tselem->type) {
diff --git a/source/blender/editors/space_outliner/outliner_tree.c b/source/blender/editors/space_outliner/outliner_tree.c
index d89a755f1c6..b226d291188 100644
--- a/source/blender/editors/space_outliner/outliner_tree.c
+++ b/source/blender/editors/space_outliner/outliner_tree.c
@@ -1254,7 +1254,7 @@ static bool outliner_library_id_show(Library *lib, ID *id, short filter_id_type)
     Collection *collection = (Collection *)id;
     bool has_non_scene_parent = false;
 
-    for (CollectionParent *cparent = collection->parents.first; cparent; cparent = cparent->next) {
+    LISTBASE_FOREACH (CollectionParent *, cparent, &collection->parents) {
       if (!(cparent->collection->flag & COLLECTION_IS_MASTER)) {
         has_non_scene_parent = true;
       }
@@ -1387,7 +1387,7 @@ static void outliner_add_orphaned_datablocks(Main *mainvar, SpaceOutliner *soops
 static void outliner_add_layer_collection_objects(
     SpaceOutliner *soops, ListBase *tree, ViewLayer *layer, LayerCollection *lc, TreeElement *ten)
 {
-  for (CollectionObject *cob = lc->collection->gobject.first; cob; cob = cob->next) {
+  LISTBASE_FOREACH (CollectionObject *, cob, &lc->collection->gobject) {
     Base *base = BKE_view_layer_base_find(layer, cob->ob);
     TreeElement *te_object = outliner_add_element(soops, tree, base->object, ten, 0, 0);
     te_object->directdata = base;
@@ -1405,7 +1405,7 @@ static void outliner_add_layer_collections_recursive(SpaceOutliner *soops,
                                                      TreeElement *parent_ten,
                                                      const bool show_objects)
 {
-  for (LayerCollection *lc = layer_collections->first; lc; lc = lc->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc, layer_collections) {
     const bool exclude = (lc->flag & LAYER_COLLECTION_EXCLUDE) != 0;
     TreeElement *ten;
 
@@ -1468,7 +1468,7 @@ BLI_INLINE void outliner_add_collection_objects(SpaceOutliner *soops,
                                                 Collection *collection,
                                                 TreeElement *parent)
 {
-  for (CollectionObject *cob = collection->gobject.first; cob; cob = cob->next) {
+  LISTBASE_FOREACH (CollectionObject *, cob, &collection->gobject) {
     outliner_add_element(soops, tree, cob->ob, parent, 0, 0);
   }
 }
@@ -1479,7 +1479,7 @@ static TreeElement *outliner_add_collection_recursive(SpaceOutliner *soops,
 {
   outliner_add_collection_init(ten, collection);
 
-  for (CollectionChild *child = collection->children.first; child; child = child->next) {
+  LISTBASE_FOREACH (CollectionChild *, child, &collection->children) {
     outliner_add_element(soops, &ten->subtree, &child->collection->id, ten, 0, 0);
   }
 
@@ -1542,7 +1542,7 @@ static void outliner_make_object_parent_hierarchy_collections(SpaceOutliner *soo
       continue;
     }
 
-    for (LinkData *link = parent_ob_tree_elements->first; link; link = link->next) {
+    LISTBASE_FOREACH (LinkData *, link, parent_ob_tree_elements) {
       TreeElement *parent_ob_tree_element = link->data;
       TreeElement *parent_ob_collection_tree_element = NULL;
       bool found = false;
@@ -1556,8 +1556,7 @@ static void outliner_make_object_parent_hierarchy_collections(SpaceOutliner *soo
         parent_ob_collection_tree_element = parent_ob_collection_tree_element->parent;
       }
 
-      for (LinkData *link_iter = child_ob_tree_elements->first; link_iter;
-           link_iter = link_iter->next) {
+      LISTBASE_FOREACH (LinkData *, link_iter, child_ob_tree_elements) {
         TreeElement *child_ob_tree_element = link_iter->data;
 
         if (child_ob_tree_element->parent == parent_ob_collection_tree_element) {
@@ -1589,7 +1588,7 @@ static void outliner_make_object_parent_hierarchy_collections(SpaceOutliner *soo
 static void outliner_object_tree_elements_lookup_create_recursive(GHash *object_tree_elements_hash,
                                                                   TreeElement *te_parent)
 {
-  for (TreeElement *te = te_parent->subtree.first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, &te_parent->subtree) {
     TreeStoreElem *tselem = TREESTORE(te);
 
     if (tselem->type == TSE_LAYER_COLLECTION) {
@@ -2427,7 +2426,7 @@ void outliner_build_tree(
   else if (soops->outlinevis == SO_VIEW_LAYER) {
     if (soops->filter & SO_FILTER_NO_COLLECTION) {
       /* Show objects in the view layer. */
-      for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+      LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
         TreeElement *te_object = outliner_add_element(
             soops, &soops->tree, base->object, NULL, 0, 0);
         te_object->directdata = base;
diff --git a/source/blender/editors/space_outliner/outliner_utils.c b/source/blender/editors/space_outliner/outliner_utils.c
index 188a4e64897..a058c30cef2 100644
--- a/source/blender/editors/space_outliner/outliner_utils.c
+++ b/source/blender/editors/space_outliner/outliner_utils.c
@@ -78,7 +78,7 @@ TreeElement *outliner_find_item_at_y(const SpaceOutliner *soops,
                                      const ListBase *tree,
                                      float view_co_y)
 {
-  for (TreeElement *te_iter = tree->first; te_iter; te_iter = te_iter->next) {
+  LISTBASE_FOREACH (TreeElement *, te_iter, tree) {
     if (view_co_y < (te_iter->ys + UI_UNIT_Y)) {
       if (view_co_y >= te_iter->ys) {
         /* co_y is inside this element */
@@ -204,7 +204,7 @@ TreeElement *outliner_find_tse(SpaceOutliner *soops, const TreeStoreElem *tse)
 /* Find treestore that refers to given ID */
 TreeElement *outliner_find_id(SpaceOutliner *soops, ListBase *lb, const ID *id)
 {
-  for (TreeElement *te = lb->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, lb) {
     TreeStoreElem *tselem = TREESTORE(te);
     if (tselem->type == 0) {
       if (tselem->id == id) {
@@ -222,7 +222,7 @@ TreeElement *outliner_find_id(SpaceOutliner *soops, ListBase *lb, const ID *id)
 
 TreeElement *outliner_find_posechannel(ListBase *lb, const bPoseChannel *pchan)
 {
-  for (TreeElement *te = lb->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, lb) {
     if (te->directdata == pchan) {
       return te;
     }
@@ -240,7 +240,7 @@ TreeElement *outliner_find_posechannel(ListBase *lb, const bPoseChannel *pchan)
 
 TreeElement *outliner_find_editbone(ListBase *lb, const EditBone *ebone)
 {
-  for (TreeElement *te = lb->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, lb) {
     if (te->directdata == ebone) {
       return te;
     }
@@ -361,7 +361,7 @@ float outliner_restrict_columns_width(const SpaceOutliner *soops)
 /* Find first tree element in tree with matching treestore flag */
 TreeElement *outliner_find_element_with_flag(const ListBase *lb, short flag)
 {
-  for (TreeElement *te = lb->first; te; te = te->next) {
+  LISTBASE_FOREACH (TreeElement *, te, lb) {
     if ((TREESTORE(te)->flag & flag) == flag) {
       return te;
     }
diff --git a/source/blender/editors/space_sequencer/sequencer_edit.c b/source/blender/editors/space_sequencer/sequencer_edit.c
index 98565c7cc58..82331545a77 100644
--- a/source/blender/editors/space_sequencer/sequencer_edit.c
+++ b/source/blender/editors/space_sequencer/sequencer_edit.c
@@ -3477,7 +3477,7 @@ static int sequencer_copy_exec(bContext *C, wmOperator *op)
   seqbase_clipboard_frame = scene->r.cfra;
 
   /* Need to remove anything that references the current scene */
-  for (Sequence *seq = seqbase_clipboard.first; seq; seq = seq->next) {
+  LISTBASE_FOREACH (Sequence *, seq, &seqbase_clipboard) {
     seq_copy_del_sound(scene, seq);
   }
 
diff --git a/source/blender/editors/space_sequencer/sequencer_select.c b/source/blender/editors/space_sequencer/sequencer_select.c
index ccb18331c55..810e1009ecb 100644
--- a/source/blender/editors/space_sequencer/sequencer_select.c
+++ b/source/blender/editors/space_sequencer/sequencer_select.c
@@ -962,7 +962,7 @@ static int sequencer_select_side_exec(bContext *C, wmOperator *op)
 
   copy_vn_i(frame_ranges, ARRAY_SIZE(frame_ranges), frame_init);
 
-  for (Sequence *seq = ed->seqbasep->first; seq; seq = seq->next) {
+  LISTBASE_FOREACH (Sequence *, seq, ed->seqbasep) {
     if (UNLIKELY(seq->machine >= MAXSEQ)) {
       continue;
     }
@@ -1037,7 +1037,7 @@ static int sequencer_box_select_exec(bContext *C, wmOperator *op)
   WM_operator_properties_border_to_rctf(op, &rectf);
   UI_view2d_region_to_view_rctf(v2d, &rectf, &rectf);
 
-  for (Sequence *seq = ed->seqbasep->first; seq; seq = seq->next) {
+  LISTBASE_FOREACH (Sequence *, seq, ed->seqbasep) {
     rctf rq;
     seq_rectf(seq, &rq);
     if (BLI_rctf_isect(&rq, &rectf, NULL)) {
diff --git a/source/blender/editors/space_view3d/space_view3d.c b/source/blender/editors/space_view3d/space_view3d.c
index 75717213cb1..226e6617a71 100644
--- a/source/blender/editors/space_view3d/space_view3d.c
+++ b/source/blender/editors/space_view3d/space_view3d.c
@@ -146,7 +146,7 @@ bool ED_view3d_area_user_region(const ScrArea *area, const View3D *v3d, ARegion
 
   BLI_assert(v3d->spacetype == SPACE_VIEW3D);
 
-  for (ARegion *region = region_list->first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, region_list) {
     /* find the first unlocked rv3d */
     if (region->regiondata && region->regiontype == RGN_TYPE_WINDOW) {
       rv3d = region->regiondata;
diff --git a/source/blender/editors/space_view3d/view3d_draw.c b/source/blender/editors/space_view3d/view3d_draw.c
index 699ad40da9c..c1995249c26 100644
--- a/source/blender/editors/space_view3d/view3d_draw.c
+++ b/source/blender/editors/space_view3d/view3d_draw.c
@@ -2396,7 +2396,7 @@ void ED_view3d_screen_datamask(const bContext *C,
   CustomData_MeshMasks_update(r_cddata_masks, &CD_MASK_BAREMESH);
 
   /* Check if we need tfaces & mcols due to view mode. */
-  for (const ScrArea *area = screen->areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (const ScrArea *, area, &screen->areabase) {
     if (area->spacetype == SPACE_VIEW3D) {
       ED_view3d_datamask(C, scene, area->spacedata.first, r_cddata_masks);
     }
diff --git a/source/blender/editors/space_view3d/view3d_select.c b/source/blender/editors/space_view3d/view3d_select.c
index cd7db2ff23a..0a272db1344 100644
--- a/source/blender/editors/space_view3d/view3d_select.c
+++ b/source/blender/editors/space_view3d/view3d_select.c
@@ -157,7 +157,7 @@ void ED_view3d_viewcontext_init_object(ViewContext *vc, Object *obact)
 static bool object_deselect_all_visible(ViewLayer *view_layer, View3D *v3d)
 {
   bool changed = false;
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     if (base->flag & BASE_SELECTED) {
       if (BASE_SELECTABLE(v3d, base)) {
         ED_object_base_select(base, BA_DESELECT);
@@ -172,7 +172,7 @@ static bool object_deselect_all_visible(ViewLayer *view_layer, View3D *v3d)
 static bool object_deselect_all_except(ViewLayer *view_layer, Base *b)
 {
   bool changed = false;
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     if (base->flag & BASE_SELECTED) {
       if (b != base) {
         ED_object_base_select(base, BA_DESELECT);
@@ -617,7 +617,7 @@ static Base **do_pose_tag_select_op_prepare(ViewContext *vc, uint *r_bases_len)
   FOREACH_BASE_IN_MODE_BEGIN (vc->view_layer, vc->v3d, OB_ARMATURE, OB_MODE_POSE, base_iter) {
     Object *ob_iter = base_iter->object;
     bArmature *arm = ob_iter->data;
-    for (bPoseChannel *pchan = ob_iter->pose->chanbase.first; pchan; pchan = pchan->next) {
+    LISTBASE_FOREACH (bPoseChannel *, pchan, &ob_iter->pose->chanbase) {
       Bone *bone = pchan->bone;
       bone->flag &= ~BONE_DONE;
     }
@@ -659,7 +659,7 @@ static bool do_pose_tag_select_op_exec(Base **bases, const uint bases_len, const
     }
 
     bool changed = true;
-    for (bPoseChannel *pchan = ob_iter->pose->chanbase.first; pchan; pchan = pchan->next) {
+    LISTBASE_FOREACH (bPoseChannel *, pchan, &ob_iter->pose->chanbase) {
       Bone *bone = pchan->bone;
       if ((bone->flag & BONE_UNSELECTABLE) == 0) {
         const bool is_select = bone->flag & BONE_SELECTED;
@@ -3076,7 +3076,7 @@ static bool do_object_box_select(bContext *C, ViewContext *vc, rcti *rect, const
   const int hits = view3d_opengl_select(
       vc, vbuffer, 4 * (totobj + MAXPICKELEMS), rect, VIEW3D_SELECT_ALL, select_filter);
 
-  for (Base *base = vc->view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &vc->view_layer->object_bases) {
     base->object->id.tag &= ~LIB_TAG_DOIT;
   }
 
@@ -3092,7 +3092,7 @@ static bool do_object_box_select(bContext *C, ViewContext *vc, rcti *rect, const
     goto finally;
   }
 
-  for (Base *base = vc->view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &vc->view_layer->object_bases) {
     if (BASE_SELECTABLE(v3d, base)) {
       if ((base->object->runtime.select_id & 0x0000FFFF) != 0) {
         BLI_array_append(bases, base);
diff --git a/source/blender/editors/space_view3d/view3d_view.c b/source/blender/editors/space_view3d/view3d_view.c
index ca9845b0b6e..b90f7aa870e 100644
--- a/source/blender/editors/space_view3d/view3d_view.c
+++ b/source/blender/editors/space_view3d/view3d_view.c
@@ -1390,7 +1390,7 @@ static void view3d_localview_exit(const Depsgraph *depsgraph,
   MEM_freeN(v3d->localvd);
   v3d->localvd = NULL;
 
-  for (ARegion *region = area->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
     if (region->regiontype == RGN_TYPE_WINDOW) {
       RegionView3D *rv3d = region->regiondata;
 
diff --git a/source/blender/editors/transform/transform_convert.c b/source/blender/editors/transform/transform_convert.c
index af3cba65dda..1e751f67c9d 100644
--- a/source/blender/editors/transform/transform_convert.c
+++ b/source/blender/editors/transform/transform_convert.c
@@ -1026,7 +1026,7 @@ static void posttrans_fcurve_clean(FCurve *fcu,
   }
   else {
     /* Compute the average values for each retained keyframe */
-    for (tRetainedKeyframe *rk = retained_keys.first; rk; rk = rk->next) {
+    LISTBASE_FOREACH (tRetainedKeyframe *, rk, &retained_keys) {
       rk->val = rk->val / (float)rk->tot_count;
     }
   }
@@ -1754,8 +1754,7 @@ static void special_aftertrans_update__movieclip(bContext *C, TransInfo *t)
   ListBase *plane_tracks_base = BKE_tracking_get_active_plane_tracks(&clip->tracking);
   const int framenr = ED_space_clip_get_clip_frame_number(sc);
   /* Update coordinates of modified plane tracks. */
-  for (MovieTrackingPlaneTrack *plane_track = plane_tracks_base->first; plane_track;
-       plane_track = plane_track->next) {
+  LISTBASE_FOREACH (MovieTrackingPlaneTrack *, plane_track, plane_tracks_base) {
     bool do_update = false;
     if (plane_track->flag & PLANE_TRACK_HIDDEN) {
       continue;
@@ -2078,12 +2077,12 @@ void special_aftertrans_update(bContext *C, TransInfo *t)
         const int filter = ANIMFILTER_DATA_VISIBLE;
         ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
 
-        for (bAnimListElem *ale = anim_data.first; ale; ale = ale->next) {
+        LISTBASE_FOREACH (bAnimListElem *, ale, &anim_data) {
           if (ale->datatype == ALE_GPFRAME) {
             ale->id->tag |= LIB_TAG_DOIT;
           }
         }
-        for (bAnimListElem *ale = anim_data.first; ale; ale = ale->next) {
+        LISTBASE_FOREACH (bAnimListElem *, ale, &anim_data) {
           if (ale->datatype == ALE_GPFRAME) {
             if (ale->id->tag & LIB_TAG_DOIT) {
               ale->id->tag &= ~LIB_TAG_DOIT;
@@ -2109,12 +2108,12 @@ void special_aftertrans_update(bContext *C, TransInfo *t)
         const int filter = ANIMFILTER_DATA_VISIBLE;
         ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
 
-        for (bAnimListElem *ale = anim_data.first; ale; ale = ale->next) {
+        LISTBASE_FOREACH (bAnimListElem *, ale, &anim_data) {
           if (ale->datatype == ALE_MASKLAY) {
             ale->id->tag |= LIB_TAG_DOIT;
           }
         }
-        for (bAnimListElem *ale = anim_data.first; ale; ale = ale->next) {
+        LISTBASE_FOREACH (bAnimListElem *, ale, &anim_data) {
           if (ale->datatype == ALE_MASKLAY) {
             if (ale->id->tag & LIB_TAG_DOIT) {
               ale->id->tag &= ~LIB_TAG_DOIT;
diff --git a/source/blender/editors/transform/transform_convert_armature.c b/source/blender/editors/transform/transform_convert_armature.c
index 9136f9edacc..e52bd15b0d5 100644
--- a/source/blender/editors/transform/transform_convert_armature.c
+++ b/source/blender/editors/transform/transform_convert_armature.c
@@ -531,8 +531,7 @@ void pose_transform_mirror_update(TransInfo *t, TransDataContainer *tc, Object *
   unit_m4(flip_mtx);
   flip_mtx[0][0] = -1;
 
-  for (bPoseChannel *pchan_orig = ob->pose->chanbase.first; pchan_orig;
-       pchan_orig = pchan_orig->next) {
+  LISTBASE_FOREACH (bPoseChannel *, pchan_orig, &ob->pose->chanbase) {
     /* Clear the MIRROR flag from previous runs. */
     pchan_orig->bone->flag &= ~BONE_TRANSFORM_MIRROR;
   }
@@ -655,7 +654,7 @@ void createTransPose(TransInfo *t)
 
     if (mirror) {
       int total_mirrored = 0;
-      for (bPoseChannel *pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
+      LISTBASE_FOREACH (bPoseChannel *, pchan, &ob->pose->chanbase) {
         if ((pchan->bone->flag & BONE_TRANSFORM) &&
             BKE_pose_channel_get_mirrored(ob->pose, pchan->name)) {
           total_mirrored++;
@@ -705,7 +704,7 @@ void createTransPose(TransInfo *t)
     }
 
     if (mirror) {
-      for (bPoseChannel *pchan = pose->chanbase.first; pchan; pchan = pchan->next) {
+      LISTBASE_FOREACH (bPoseChannel *, pchan, &pose->chanbase) {
         if (pchan->bone->flag & BONE_TRANSFORM) {
           bPoseChannel *pchan_mirror = BKE_pose_channel_get_mirrored(ob->pose, pchan->name);
           if (pchan_mirror) {
@@ -727,7 +726,7 @@ void createTransPose(TransInfo *t)
 
     /* use pose channels to fill trans data */
     td = tc->data;
-    for (bPoseChannel *pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
+    LISTBASE_FOREACH (bPoseChannel *, pchan, &ob->pose->chanbase) {
       if (pchan->bone->flag & BONE_TRANSFORM) {
         add_pose_transdata(t, pchan, ob, tc, td);
         td++;
diff --git a/source/blender/editors/transform/transform_convert_curve.c b/source/blender/editors/transform/transform_convert_curve.c
index 18211eb447f..908cf7707f2 100644
--- a/source/blender/editors/transform/transform_convert_curve.c
+++ b/source/blender/editors/transform/transform_convert_curve.c
@@ -99,7 +99,7 @@ void createTransCurveVerts(TransInfo *t)
 
     /* count total of vertices, check identical as in 2nd loop for making transdata! */
     ListBase *nurbs = BKE_curve_editNurbs_get(cu);
-    for (Nurb *nu = nurbs->first; nu; nu = nu->next) {
+    LISTBASE_FOREACH (Nurb *, nu, nurbs) {
       if (nu->type == CU_BEZIER) {
         for (a = 0, bezt = nu->bezt; a < nu->pntsu; a++, bezt++) {
           if (bezt->hide == 0) {
@@ -174,7 +174,7 @@ void createTransCurveVerts(TransInfo *t)
 
     TransData *td = tc->data;
     ListBase *nurbs = BKE_curve_editNurbs_get(cu);
-    for (Nurb *nu = nurbs->first; nu; nu = nu->next) {
+    LISTBASE_FOREACH (Nurb *, nu, nurbs) {
       if (nu->type == CU_BEZIER) {
         TransData *head, *tail;
         head = tail = td;
diff --git a/source/blender/editors/transform/transform_convert_object.c b/source/blender/editors/transform/transform_convert_object.c
index 4973b1cb268..9b76db7f265 100644
--- a/source/blender/editors/transform/transform_convert_object.c
+++ b/source/blender/editors/transform/transform_convert_object.c
@@ -290,7 +290,7 @@ static void ObjectToTransData(TransInfo *t, TransData *td, Object *ob)
 
 static void trans_object_base_deps_flag_prepare(ViewLayer *view_layer)
 {
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     base->object->id.tag &= ~LIB_TAG_DOIT;
   }
 }
@@ -324,7 +324,7 @@ static void trans_object_base_deps_flag_finish(const TransInfo *t, ViewLayer *vi
 {
 
   if ((t->options & CTX_OBMODE_XFORM_OBDATA) == 0) {
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       if (base->object->id.tag & LIB_TAG_DOIT) {
         base->flag_legacy |= BA_SNAP_FIX_DEPS_FIASCO;
       }
@@ -355,7 +355,7 @@ static void set_trans_object_base_flags(TransInfo *t)
   /* Clear all flags we need. It will be used to detect dependencies. */
   trans_object_base_deps_flag_prepare(view_layer);
   /* Traverse all bases and set all possible flags. */
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     base->flag_legacy &= ~(BA_WAS_SEL | BA_TRANSFORM_LOCKED_IN_PLACE);
     if (BASE_SELECTED_EDITABLE(v3d, base)) {
       Object *ob = base->object;
@@ -422,7 +422,7 @@ static int count_proportional_objects(TransInfo *t)
   if (!((t->around == V3D_AROUND_LOCAL_ORIGINS) &&
         (t->mode == TFM_ROTATION || t->mode == TFM_TRACKBALL))) {
     /* Mark all parents. */
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       if (BASE_SELECTED_EDITABLE(v3d, base) && BASE_SELECTABLE(v3d, base)) {
         Object *parent = base->object->parent;
         /* flag all parents */
@@ -433,7 +433,7 @@ static int count_proportional_objects(TransInfo *t)
       }
     }
     /* Mark all children. */
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       /* all base not already selected or marked that is editable */
       if ((base->object->flag & (BA_TRANSFORM_CHILD | BA_TRANSFORM_PARENT)) == 0 &&
           (base->flag & BASE_SELECTED) == 0 &&
@@ -443,7 +443,7 @@ static int count_proportional_objects(TransInfo *t)
     }
   }
   /* Flush changed flags to all dependencies. */
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     Object *ob = base->object;
     /* If base is not selected, not a parent of selection or not a child of
      * selection and it is editable and selectable.
@@ -592,7 +592,7 @@ void createTransObject(bContext *C, TransInfo *t)
     ViewLayer *view_layer = t->view_layer;
     View3D *v3d = t->view;
 
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       Object *ob = base->object;
 
       /* if base is not selected, not a parent of selection
@@ -639,7 +639,7 @@ void createTransObject(bContext *C, TransInfo *t)
 
     ViewLayer *view_layer = t->view_layer;
 
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       Object *ob = base->object;
       if (ob->parent != NULL) {
         if (ob->parent && !BLI_gset_haskey(objects_in_transdata, ob->parent) &&
@@ -669,7 +669,7 @@ void createTransObject(bContext *C, TransInfo *t)
       }
     }
 
-    for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+    LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
       Object *ob = base->object;
 
       if (BASE_XFORM_INDIRECT(base) || BLI_gset_haskey(objects_in_transdata, ob)) {
diff --git a/source/blender/editors/transform/transform_gizmo_3d.c b/source/blender/editors/transform/transform_gizmo_3d.c
index 6af1989a509..aa298b04d1a 100644
--- a/source/blender/editors/transform/transform_gizmo_3d.c
+++ b/source/blender/editors/transform/transform_gizmo_3d.c
@@ -800,7 +800,7 @@ int ED_transform_calc_gizmo_stats(const bContext *C,
         /* calculate difference matrix */
         BKE_gpencil_parent_matrix_get(depsgraph, ob, gpl, diff_mat);
 
-        for (bGPDstroke *gps = gpl->actframe->strokes.first; gps; gps = gps->next) {
+        LISTBASE_FOREACH (bGPDstroke *, gps, &gpl->actframe->strokes) {
           /* skip strokes that are invalid for current view */
           if (ED_gpencil_stroke_can_use(C, gps) == false) {
             continue;
@@ -883,7 +883,7 @@ int ED_transform_calc_gizmo_stats(const bContext *C,
         if (use_mat_local) {
           mul_m4_m4m4(mat_local, obedit->imat, ob_iter->obmat);
         }
-        for (EditBone *ebo = arm->edbo->first; ebo; ebo = ebo->next) {
+        LISTBASE_FOREACH (EditBone *, ebo, arm->edbo) {
           if (EBONE_VISIBLE(arm, ebo)) {
             if (ebo->flag & BONE_TIPSEL) {
               calc_tw_center_with_matrix(tbounds, ebo->tail, use_mat_local, mat_local);
@@ -977,7 +977,7 @@ int ED_transform_calc_gizmo_stats(const bContext *C,
           mul_m4_m4m4(mat_local, obedit->imat, ob_iter->obmat);
         }
 
-        for (MetaElem *ml = mb->editelems->first; ml; ml = ml->next) {
+        LISTBASE_FOREACH (MetaElem *, ml, mb->editelems) {
           if (ml->flag & SELECT) {
             calc_tw_center_with_matrix(tbounds, &ml->x, use_mat_local, mat_local);
             totsel++;
diff --git a/source/blender/editors/transform/transform_snap_object.c b/source/blender/editors/transform/transform_snap_object.c
index 8e7e36d7cb7..2cfeedbb346 100644
--- a/source/blender/editors/transform/transform_snap_object.c
+++ b/source/blender/editors/transform/transform_snap_object.c
@@ -1838,7 +1838,7 @@ static short snapArmature(SnapData *snapdata,
 
   bArmature *arm = ob->data;
   if (arm->edbo) {
-    for (EditBone *eBone = arm->edbo->first; eBone; eBone = eBone->next) {
+    LISTBASE_FOREACH (EditBone *, eBone, arm->edbo) {
       if (eBone->layer & arm->layer) {
         /* skip hidden or moving (selected) bones */
         if ((eBone->flag & (BONE_HIDDEN_A | BONE_ROOTSEL | BONE_TIPSEL)) == 0) {
@@ -1881,7 +1881,7 @@ static short snapArmature(SnapData *snapdata,
     }
   }
   else if (ob->pose && ob->pose->chanbase.first) {
-    for (bPoseChannel *pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
+    LISTBASE_FOREACH (bPoseChannel *, pchan, &ob->pose->chanbase) {
       Bone *bone = pchan->bone;
       /* skip hidden bones */
       if (bone && !(bone->flag & (BONE_HIDDEN_P | BONE_HIDDEN_PG))) {
diff --git a/source/blender/editors/undo/ed_undo.c b/source/blender/editors/undo/ed_undo.c
index 39ecbad1807..69e7c04b5e5 100644
--- a/source/blender/editors/undo/ed_undo.c
+++ b/source/blender/editors/undo/ed_undo.c
@@ -816,7 +816,7 @@ static int undo_editmode_objects_from_view_layer_prepare(ViewLayer *view_layer,
 {
   const short object_type = obact->type;
 
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     Object *ob = base->object;
     if ((ob->type == object_type) && (ob->mode & OB_MODE_EDIT)) {
       ID *id = ob->data;
@@ -825,7 +825,7 @@ static int undo_editmode_objects_from_view_layer_prepare(ViewLayer *view_layer,
   }
 
   int len = 0;
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     Object *ob = base->object;
     if ((ob->type == object_type) && (ob->mode & OB_MODE_EDIT)) {
       if (ob == obact) {
@@ -852,7 +852,7 @@ Object **ED_undo_editmode_objects_from_view_layer(ViewLayer *view_layer, uint *r
   const short object_type = obact->type;
   int i = 0;
   Object **objects = MEM_malloc_arrayN(len, sizeof(*objects), __func__);
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     Object *ob = base->object;
     if ((ob->type == object_type) && (ob->mode & OB_MODE_EDIT)) {
       ID *id = ob->data;
@@ -881,7 +881,7 @@ Base **ED_undo_editmode_bases_from_view_layer(ViewLayer *view_layer, uint *r_len
   const short object_type = obact->type;
   int i = 0;
   Base **base_array = MEM_malloc_arrayN(len, sizeof(*base_array), __func__);
-  for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+  LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) {
     Object *ob = base->object;
     if ((ob->type == object_type) && (ob->mode & OB_MODE_EDIT)) {
       ID *id = ob->data;
diff --git a/source/blender/editors/util/ed_util.c b/source/blender/editors/util/ed_util.c
index 733cdad2212..f8e19b742e4 100644
--- a/source/blender/editors/util/ed_util.c
+++ b/source/blender/editors/util/ed_util.c
@@ -83,7 +83,7 @@
 void ED_editors_init_for_undo(Main *bmain)
 {
   wmWindowManager *wm = bmain->wm.first;
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     ViewLayer *view_layer = WM_window_get_active_view_layer(win);
     Base *base = BASACT(view_layer);
     if (base != NULL) {
diff --git a/source/blender/gpu/intern/gpu_batch_presets.c b/source/blender/gpu/intern/gpu_batch_presets.c
index e00b6f78c2e..e322b9fb9b8 100644
--- a/source/blender/gpu/intern/gpu_batch_presets.c
+++ b/source/blender/gpu/intern/gpu_batch_presets.c
@@ -241,7 +241,7 @@ void gpu_batch_presets_reset(void)
   BLI_mutex_lock(&g_presets_3d.mutex);
   /* Reset vao caches for these every time we switch opengl context.
    * This way they will draw correctly for each window. */
-  for (LinkData *link = presets_list.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &presets_list) {
     GPUBatch *preset = link->data;
     GPU_batch_vao_cache_clear(preset);
   }
diff --git a/source/blender/gpu/intern/gpu_codegen.c b/source/blender/gpu/intern/gpu_codegen.c
index f279ab2c86c..8a46e24d459 100644
--- a/source/blender/gpu/intern/gpu_codegen.c
+++ b/source/blender/gpu/intern/gpu_codegen.c
@@ -75,7 +75,7 @@ static uint32_t gpu_pass_hash(const char *frag_gen, const char *defs, ListBase *
   BLI_HashMurmur2A hm2a;
   BLI_hash_mm2a_init(&hm2a, 0);
   BLI_hash_mm2a_add(&hm2a, (uchar *)frag_gen, strlen(frag_gen));
-  for (GPUMaterialAttribute *attr = attributes->first; attr; attr = attr->next) {
+  LISTBASE_FOREACH (GPUMaterialAttribute *, attr, attributes) {
     BLI_hash_mm2a_add(&hm2a, (uchar *)attr->name, strlen(attr->name));
   }
   if (defs) {
@@ -314,12 +314,12 @@ static int codegen_process_uniforms_functions(GPUMaterial *material,
   ListBase ubo_inputs = {NULL, NULL};
 
   /* Attributes */
-  for (GPUMaterialAttribute *attr = graph->attributes.first; attr; attr = attr->next) {
+  LISTBASE_FOREACH (GPUMaterialAttribute *, attr, &graph->attributes) {
     BLI_dynstr_appendf(ds, "in %s var%d;\n", gpu_data_type_to_string(attr->gputype), attr->id);
   }
 
   /* Textures */
-  for (GPUMaterialTexture *tex = graph->textures.first; tex; tex = tex->next) {
+  LISTBASE_FOREACH (GPUMaterialTexture *, tex, &graph->textures) {
     if (tex->colorband) {
       BLI_dynstr_appendf(ds, "uniform sampler1DArray %s;\n", tex->sampler_name);
     }
@@ -333,7 +333,7 @@ static int codegen_process_uniforms_functions(GPUMaterial *material,
   }
 
   /* Volume Grids */
-  for (GPUMaterialVolumeGrid *grid = graph->volume_grids.first; grid; grid = grid->next) {
+  LISTBASE_FOREACH (GPUMaterialVolumeGrid *, grid, &graph->volume_grids) {
     BLI_dynstr_appendf(ds, "uniform sampler3D %s;\n", grid->sampler_name);
     BLI_dynstr_appendf(ds, "uniform mat4 %s = mat4(0.0);\n", grid->transform_name);
   }
@@ -381,7 +381,7 @@ static int codegen_process_uniforms_functions(GPUMaterial *material,
     /* Inputs are sorted */
     BLI_dynstr_appendf(ds, "\nlayout (std140) uniform %s {\n", GPU_UBO_BLOCK_NAME);
 
-    for (LinkData *link = ubo_inputs.first; link; link = link->next) {
+    LISTBASE_FOREACH (LinkData *, link, &ubo_inputs) {
       input = link->data;
       BLI_dynstr_appendf(ds, "\t%s unf%d;\n", gpu_data_type_to_string(input->type), input->id);
     }
@@ -673,7 +673,7 @@ static char *code_generate_vertex(GPUNodeGraph *graph, const char *vert_code, bo
                     "#define DEFINE_ATTR(type, attr) in type attr\n"
                     "#endif\n");
 
-  for (GPUMaterialAttribute *attr = graph->attributes.first; attr; attr = attr->next) {
+  LISTBASE_FOREACH (GPUMaterialAttribute *, attr, &graph->attributes) {
     /* XXX FIXME : see notes in mesh_render_data_create() */
     /* NOTE : Replicate changes to mesh_render_data_create() in draw_cache_impl_mesh.c */
     if (attr->type == CD_ORCO) {
@@ -787,7 +787,7 @@ static char *code_generate_vertex(GPUNodeGraph *graph, const char *vert_code, bo
     BLI_dynstr_append(ds, "\tbarycentricPosg = position;\n");
   }
 
-  for (GPUMaterialAttribute *attr = graph->attributes.first; attr; attr = attr->next) {
+  LISTBASE_FOREACH (GPUMaterialAttribute *, attr, &graph->attributes) {
     if (attr->type == CD_TANGENT) {
       /* Not supported by hairs */
       BLI_dynstr_appendf(ds, "\tvar%d%s = vec4(0.0);\n", attr->id, use_geom ? "g" : "");
@@ -820,7 +820,7 @@ static char *code_generate_vertex(GPUNodeGraph *graph, const char *vert_code, bo
     BLI_dynstr_append(ds, "\tbarycentricPosg = (ModelMatrix * vec4(position, 1.0)).xyz;\n");
   }
 
-  for (GPUMaterialAttribute *attr = graph->attributes.first; attr; attr = attr->next) {
+  LISTBASE_FOREACH (GPUMaterialAttribute *, attr, &graph->attributes) {
     if (attr->type == CD_TANGENT) { /* silly exception */
       BLI_dynstr_appendf(ds,
                          "\tvar%d%s.xyz = transpose(mat3(ModelMatrixInverse)) * att%d.xyz;\n",
@@ -903,7 +903,7 @@ static char *code_generate_geometry(GPUNodeGraph *graph,
     }
   }
 
-  for (GPUMaterialAttribute *attr = graph->attributes.first; attr; attr = attr->next) {
+  LISTBASE_FOREACH (GPUMaterialAttribute *, attr, &graph->attributes) {
     BLI_dynstr_appendf(ds, "in %s var%dg[];\n", gpu_data_type_to_string(attr->gputype), attr->id);
     BLI_dynstr_appendf(ds, "out %s var%d;\n", gpu_data_type_to_string(attr->gputype), attr->id);
   }
@@ -1010,7 +1010,7 @@ static char *code_generate_geometry(GPUNodeGraph *graph,
     BLI_dynstr_append(ds, "#endif\n");
   }
 
-  for (GPUMaterialAttribute *attr = graph->attributes.first; attr; attr = attr->next) {
+  LISTBASE_FOREACH (GPUMaterialAttribute *, attr, &graph->attributes) {
     /* TODO let shader choose what to do depending on what the attribute is. */
     BLI_dynstr_appendf(ds, "\tvar%d = var%dg[vert];\n", attr->id, attr->id);
   }
diff --git a/source/blender/gpu/intern/gpu_material.c b/source/blender/gpu/intern/gpu_material.c
index 3e73d156440..97e4c880644 100644
--- a/source/blender/gpu/intern/gpu_material.c
+++ b/source/blender/gpu/intern/gpu_material.c
@@ -191,7 +191,7 @@ static void gpu_material_free_single(GPUMaterial *material)
 
 void GPU_material_free(ListBase *gpumaterial)
 {
-  for (LinkData *link = gpumaterial->first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, gpumaterial) {
     GPUMaterial *material = link->data;
     gpu_material_free_single(material);
     MEM_freeN(material);
@@ -628,7 +628,7 @@ GPUMaterial *GPU_material_from_nodetree_find(ListBase *gpumaterials,
                                              const void *engine_type,
                                              int options)
 {
-  for (LinkData *link = gpumaterials->first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, gpumaterials) {
     GPUMaterial *current_material = (GPUMaterial *)link->data;
     if (current_material->engine_type == engine_type && current_material->options == options) {
       return current_material;
diff --git a/source/blender/gpu/intern/gpu_node_graph.c b/source/blender/gpu/intern/gpu_node_graph.c
index 953b2eb40d8..876a6bef670 100644
--- a/source/blender/gpu/intern/gpu_node_graph.c
+++ b/source/blender/gpu/intern/gpu_node_graph.c
@@ -645,7 +645,7 @@ void gpu_node_graph_free(GPUNodeGraph *graph)
 {
   gpu_node_graph_free_nodes(graph);
 
-  for (GPUMaterialVolumeGrid *grid = graph->volume_grids.first; grid; grid = grid->next) {
+  LISTBASE_FOREACH (GPUMaterialVolumeGrid *, grid, &graph->volume_grids) {
     MEM_SAFE_FREE(grid->name);
   }
   BLI_freelistN(&graph->volume_grids);
@@ -679,7 +679,7 @@ static void gpu_nodes_tag(GPUNodeLink *link)
 
 void gpu_node_graph_prune_unused(GPUNodeGraph *graph)
 {
-  for (GPUNode *node = graph->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (GPUNode *, node, &graph->nodes) {
     node->tag = false;
   }
 
diff --git a/source/blender/gpu/intern/gpu_select_pick.c b/source/blender/gpu/intern/gpu_select_pick.c
index 56fe1e40d87..674ca06d109 100644
--- a/source/blender/gpu/intern/gpu_select_pick.c
+++ b/source/blender/gpu/intern/gpu_select_pick.c
@@ -731,8 +731,7 @@ void gpu_select_pick_cache_load_id(void)
 #ifdef DEBUG_PRINT
   printf("%s (building depth from cache)\n", __func__);
 #endif
-  for (DepthBufCache *rect_depth = ps->cache.bufs.first; rect_depth;
-       rect_depth = rect_depth->next) {
+  LISTBASE_FOREACH (DepthBufCache *, rect_depth, &ps->cache.bufs) {
     if (rect_depth->next != NULL) {
       /* we know the buffers differ, but this sub-region may not.
        * double check before adding an id-pass */
diff --git a/source/blender/gpu/intern/gpu_uniformbuffer.c b/source/blender/gpu/intern/gpu_uniformbuffer.c
index 943793956d1..130e8fe7da1 100644
--- a/source/blender/gpu/intern/gpu_uniformbuffer.c
+++ b/source/blender/gpu/intern/gpu_uniformbuffer.c
@@ -147,7 +147,7 @@ GPUUniformBuffer *GPU_uniformbuffer_dynamic_create(ListBase *inputs, char err_ou
   /* Make sure we comply to the ubo alignment requirements. */
   gpu_uniformbuffer_inputs_sort(inputs);
 
-  for (LinkData *link = inputs->first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, inputs) {
     const eGPUType gputype = get_padded_gpu_type(link);
     ubo->buffer.size += gputype * sizeof(float);
   }
@@ -160,7 +160,7 @@ GPUUniformBuffer *GPU_uniformbuffer_dynamic_create(ListBase *inputs, char err_ou
 
   /* Now that we know the total ubo size we can start populating it. */
   float *offset = ubo->data;
-  for (LinkData *link = inputs->first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, inputs) {
     GPUInput *input = link->data;
     memcpy(offset, input->vec, input->type * sizeof(float));
     offset += get_padded_gpu_type(link);
@@ -272,7 +272,7 @@ static void gpu_uniformbuffer_inputs_sort(ListBase *inputs)
   LinkData *inputs_lookup[MAX_UBO_GPU_TYPE + 1] = {NULL};
   eGPUType cur_type = MAX_UBO_GPU_TYPE + 1;
 
-  for (LinkData *link = inputs->first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, inputs) {
     GPUInput *input = link->data;
 
     if (input->type == GPU_MAT3) {
diff --git a/source/blender/gpu/intern/gpu_viewport.c b/source/blender/gpu/intern/gpu_viewport.c
index 57efaf99b8b..b2e1cb17946 100644
--- a/source/blender/gpu/intern/gpu_viewport.c
+++ b/source/blender/gpu/intern/gpu_viewport.c
@@ -355,7 +355,7 @@ GPUTexture *GPU_viewport_texture_pool_query(
 {
   GPUTexture *tex;
 
-  for (ViewportTempTexture *tmp_tex = viewport->tex_pool.first; tmp_tex; tmp_tex = tmp_tex->next) {
+  LISTBASE_FOREACH (ViewportTempTexture *, tmp_tex, &viewport->tex_pool) {
     if ((GPU_texture_format(tmp_tex->texture) == format) &&
         (GPU_texture_width(tmp_tex->texture) == width) &&
         (GPU_texture_height(tmp_tex->texture) == height)) {
@@ -412,7 +412,7 @@ static void gpu_viewport_texture_pool_clear_users(GPUViewport *viewport)
 
 static void gpu_viewport_texture_pool_free(GPUViewport *viewport)
 {
-  for (ViewportTempTexture *tmp_tex = viewport->tex_pool.first; tmp_tex; tmp_tex = tmp_tex->next) {
+  LISTBASE_FOREACH (ViewportTempTexture *, tmp_tex, &viewport->tex_pool) {
     GPU_texture_free(tmp_tex->texture);
   }
 
diff --git a/source/blender/ikplugin/intern/iksolver_plugin.c b/source/blender/ikplugin/intern/iksolver_plugin.c
index b72c32a8277..3646686e81f 100644
--- a/source/blender/ikplugin/intern/iksolver_plugin.c
+++ b/source/blender/ikplugin/intern/iksolver_plugin.c
@@ -654,7 +654,7 @@ void iksolver_release_tree(struct Scene *UNUSED(scene), struct Object *ob, float
 
 void iksolver_clear_data(bPose *pose)
 {
-  for (bPoseChannel *pchan = pose->chanbase.first; pchan; pchan = pchan->next) {
+  LISTBASE_FOREACH (bPoseChannel *, pchan, &pose->chanbase) {
     if ((pchan->flag & POSE_IKTREE) == 0) {
       continue;
     }
diff --git a/source/blender/makesrna/intern/rna_access_compare_override.c b/source/blender/makesrna/intern/rna_access_compare_override.c
index 4e238df4e3c..199d22ee3dc 100644
--- a/source/blender/makesrna/intern/rna_access_compare_override.c
+++ b/source/blender/makesrna/intern/rna_access_compare_override.c
@@ -438,7 +438,7 @@ static bool rna_property_override_operation_store(Main *bmain,
     return changed;
   }
 
-  for (IDOverrideLibraryPropertyOperation *opop = op->operations.first; opop; opop = opop->next) {
+  LISTBASE_FOREACH (IDOverrideLibraryPropertyOperation *, opop, &op->operations) {
     /* Only needed for diff operations. */
     if (!ELEM(opop->operation,
               IDOVERRIDE_LIBRARY_OP_ADD,
@@ -832,7 +832,7 @@ bool RNA_struct_override_store(Main *bmain,
 #ifdef DEBUG_OVERRIDE_TIMEIT
   TIMEIT_START_AVERAGED(RNA_struct_override_store);
 #endif
-  for (IDOverrideLibraryProperty *op = override->properties.first; op; op = op->next) {
+  LISTBASE_FOREACH (IDOverrideLibraryProperty *, op, &override->properties) {
     /* Simplified for now! */
     PointerRNA data_reference, data_local;
     PropertyRNA *prop_reference, *prop_local;
@@ -880,7 +880,7 @@ static void rna_property_override_apply_ex(Main *bmain,
                                            IDOverrideLibraryProperty *op,
                                            const bool do_insert)
 {
-  for (IDOverrideLibraryPropertyOperation *opop = op->operations.first; opop; opop = opop->next) {
+  LISTBASE_FOREACH (IDOverrideLibraryPropertyOperation *, opop, &op->operations) {
     if (!do_insert != !ELEM(opop->operation,
                             IDOVERRIDE_LIBRARY_OP_INSERT_AFTER,
                             IDOVERRIDE_LIBRARY_OP_INSERT_BEFORE)) {
@@ -999,7 +999,7 @@ void RNA_struct_override_apply(Main *bmain,
    */
   bool do_insert = false;
   for (int i = 0; i < 2; i++, do_insert = true) {
-    for (IDOverrideLibraryProperty *op = override->properties.first; op; op = op->next) {
+    LISTBASE_FOREACH (IDOverrideLibraryProperty *, op, &override->properties) {
       /* Simplified for now! */
       PointerRNA data_src, data_dst;
       PointerRNA data_item_src, data_item_dst;
diff --git a/source/blender/makesrna/intern/rna_key.c b/source/blender/makesrna/intern/rna_key.c
index 6755dd86a0a..7955109d9bc 100644
--- a/source/blender/makesrna/intern/rna_key.c
+++ b/source/blender/makesrna/intern/rna_key.c
@@ -576,7 +576,7 @@ static void rna_ShapeKey_data_begin(CollectionPropertyIterator *iter, PointerRNA
     NurbInfo info = {0};
 
     /* Check if all sub-curves have the same type. */
-    for (Nurb *nu = cu->nurb.first; nu; nu = nu->next) {
+    LISTBASE_FOREACH (Nurb *, nu, &cu->nurb) {
       if (type == NULL) {
         type = rna_ShapeKey_curve_point_type(nu);
         rna_ShapeKey_NurbInfo_init(&info, nu);
diff --git a/source/blender/makesrna/intern/rna_layer.c b/source/blender/makesrna/intern/rna_layer.c
index f3e2e20ee3c..46a32256114 100644
--- a/source/blender/makesrna/intern/rna_layer.c
+++ b/source/blender/makesrna/intern/rna_layer.c
@@ -301,7 +301,7 @@ static void rna_LayerCollection_hide_viewport_set(PointerRNA *ptr, bool value)
 
 static void rna_LayerCollection_exclude_update_recursive(ListBase *lb, const bool exclude)
 {
-  for (LayerCollection *lc = lb->first; lc; lc = lc->next) {
+  LISTBASE_FOREACH (LayerCollection *, lc, lb) {
     if (exclude) {
       lc->flag |= LAYER_COLLECTION_EXCLUDE;
     }
diff --git a/source/blender/makesrna/intern/rna_particle.c b/source/blender/makesrna/intern/rna_particle.c
index d062642d3ce..c1fb3232bb3 100644
--- a/source/blender/makesrna/intern/rna_particle.c
+++ b/source/blender/makesrna/intern/rna_particle.c
@@ -697,7 +697,7 @@ static void rna_Particle_change_type(Main *bmain, Scene *UNUSED(scene), PointerR
 
   /* Iterating over all object is slow, but no better solution exists at the moment. */
   for (Object *ob = bmain->objects.first; ob; ob = ob->id.next) {
-    for (ParticleSystem *psys = ob->particlesystem.first; psys; psys = psys->next) {
+    LISTBASE_FOREACH (ParticleSystem *, psys, &ob->particlesystem) {
       if (psys->part == part) {
         psys_changed_type(ob, psys);
         psys->recalc |= ID_RECALC_PSYS_RESET;
diff --git a/source/blender/makesrna/intern/rna_scene.c b/source/blender/makesrna/intern/rna_scene.c
index f68541dfc4a..27ebbe79085 100644
--- a/source/blender/makesrna/intern/rna_scene.c
+++ b/source/blender/makesrna/intern/rna_scene.c
@@ -1811,7 +1811,7 @@ static void rna_Scene_editmesh_select_mode_set(PointerRNA *ptr, const bool *valu
 
     /* Update select mode in all the workspaces in mesh edit mode. */
     wmWindowManager *wm = G_MAIN->wm.first;
-    for (wmWindow *win = wm->windows.first; win; win = win->next) {
+    LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
       ViewLayer *view_layer = WM_window_get_active_view_layer(win);
 
       if (view_layer && view_layer->basact) {
@@ -2435,7 +2435,7 @@ static const EnumPropertyItem *rna_TransformOrientation_impl_itemf(Scene *scene,
   if (transform_orientations && (BLI_listbase_is_empty(transform_orientations) == false)) {
     RNA_enum_item_add_separator(&item, &totitem);
 
-    for (TransformOrientation *ts = transform_orientations->first; ts; ts = ts->next) {
+    LISTBASE_FOREACH (TransformOrientation *, ts, transform_orientations) {
       tmp.identifier = ts->name;
       tmp.name = ts->name;
       tmp.value = i++;
diff --git a/source/blender/makesrna/intern/rna_space.c b/source/blender/makesrna/intern/rna_space.c
index e20bf263bee..f69ba1a38c9 100644
--- a/source/blender/makesrna/intern/rna_space.c
+++ b/source/blender/makesrna/intern/rna_space.c
@@ -1028,8 +1028,8 @@ static void rna_3DViewShading_type_update(Main *bmain, Scene *scene, PointerRNA
   rna_GPencil_update(bmain, scene, ptr);
 
   bScreen *screen = (bScreen *)ptr->owner_id;
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-    for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+    LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
       if (sl->spacetype == SPACE_VIEW3D) {
         View3D *v3d = (View3D *)sl;
         if (&v3d->shading == shading) {
diff --git a/source/blender/makesrna/intern/rna_ui.c b/source/blender/makesrna/intern/rna_ui.c
index 37cbeeb0d84..a94e3d26862 100644
--- a/source/blender/makesrna/intern/rna_ui.c
+++ b/source/blender/makesrna/intern/rna_ui.c
@@ -204,7 +204,7 @@ static void rna_Panel_unregister(Main *bmain, StructRNA *type)
 
   WM_paneltype_remove(pt);
 
-  for (LinkData *link = pt->children.first; link; link = link->next) {
+  LISTBASE_FOREACH (LinkData *, link, &pt->children) {
     PanelType *child_pt = link->data;
     child_pt->parent = NULL;
   }
@@ -214,14 +214,14 @@ static void rna_Panel_unregister(Main *bmain, StructRNA *type)
   BLI_freelinkN(&art->paneltypes, pt);
 
   for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-      for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+      LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
         if (sl->spacetype == space_type) {
           ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
                                                                  &sl->regionbase;
-          for (ARegion *region = regionbase->first; region; region = region->next) {
+          LISTBASE_FOREACH (ARegion *, region, regionbase) {
             if (region->type == art) {
-              for (Panel *pa = region->panels.first; pa; pa = pa->next) {
+              LISTBASE_FOREACH (Panel *, pa, &region->panels) {
                 if (pa->type == pt) {
                   pa->type = NULL;
                 }
diff --git a/source/blender/makesrna/intern/rna_wm_gizmo.c b/source/blender/makesrna/intern/rna_wm_gizmo.c
index 8c1b48d2b07..826d4039c55 100644
--- a/source/blender/makesrna/intern/rna_wm_gizmo.c
+++ b/source/blender/makesrna/intern/rna_wm_gizmo.c
@@ -259,13 +259,12 @@ static wmGizmo *rna_GizmoProperties_find_operator(PointerRNA *ptr)
   /* We could try workaruond this lookup, but not trivial. */
   for (bScreen *screen = G_MAIN->screens.first; screen; screen = screen->id.next) {
     IDProperty *properties = ptr->data;
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-      for (ARegion *region = area->regionbase.first; region; region = region->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+      LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
         if (region->gizmo_map) {
           wmGizmoMap *gzmap = region->gizmo_map;
-          for (wmGizmoGroup *gzgroup = WM_gizmomap_group_list(gzmap)->first; gzgroup;
-               gzgroup = gzgroup->next) {
-            for (wmGizmo *gz = gzgroup->gizmos.first; gz; gz = gz->next) {
+          LISTBASE_FOREACH (wmGizmoGroup *, gzgroup, WM_gizmomap_group_list(gzmap)) {
+            LISTBASE_FOREACH (wmGizmo *, gz, &gzgroup->gizmos) {
               if (gz->properties == properties) {
                 return gz;
               }
diff --git a/source/blender/modifiers/intern/MOD_dynamicpaint.c b/source/blender/modifiers/intern/MOD_dynamicpaint.c
index d9fe2504e22..d36fce3752b 100644
--- a/source/blender/modifiers/intern/MOD_dynamicpaint.c
+++ b/source/blender/modifiers/intern/MOD_dynamicpaint.c
@@ -124,8 +124,7 @@ static void updateDepsgraph(ModifierData *md, const ModifierUpdateDepsgraphConte
   DynamicPaintModifierData *pmd = (DynamicPaintModifierData *)md;
   /* Add relation from canvases to all brush objects. */
   if (pmd->canvas != NULL && pmd->type == MOD_DYNAMICPAINT_TYPE_CANVAS) {
-    for (DynamicPaintSurface *surface = pmd->canvas->surfaces.first; surface;
-         surface = surface->next) {
+    LISTBASE_FOREACH (DynamicPaintSurface *, surface, &pmd->canvas->surfaces) {
       if (surface->effect & MOD_DPAINT_EFFECT_DO_DRIP) {
         DEG_add_forcefield_relations(
             ctx->node, ctx->object, surface->effector_weights, true, 0, "Dynamic Paint Field");
diff --git a/source/blender/nodes/shader/node_shader_tree.c b/source/blender/nodes/shader/node_shader_tree.c
index f79edcadbda..d44cb8c7de1 100644
--- a/source/blender/nodes/shader/node_shader_tree.c
+++ b/source/blender/nodes/shader/node_shader_tree.c
@@ -229,7 +229,7 @@ bNode *ntreeShaderOutputNode(bNodeTree *ntree, int target)
    * multiple, we prefer exact target match and active nodes. */
   bNode *output_node = NULL;
 
-  for (bNode *node = ntree->nodes.first; node; node = node->next) {
+  LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
     if (!ELEM(node->type, SH_NODE_OUTPUT_MATERIAL, SH_NODE_OUTPUT_WORLD, SH_NODE_OUTPUT_LIGHT)) {
       continue;
     }
@@ -344,7 +344,7 @@ static void ntree_shader_unlink_hidden_value_sockets(bNode *group_node, bNodeSoc
   bool removed_link = false;
 
   for (node = group_ntree->nodes.first; node; node = node->next) {
-    for (bNodeSocket *sock = node->inputs.first; sock; sock = sock->next) {
+    LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
       if ((sock->flag & SOCK_HIDE_VALUE) == 0) {
         continue;
       }
@@ -553,7 +553,7 @@ static void ntree_shader_relink_node_normal(bNodeTree *ntree,
   /* TODO(sergey): Can we do something smarter here than just a name-based
    * matching?
    */
-  for (bNodeSocket *sock = node->inputs.first; sock; sock = sock->next) {
+  LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
     if (STREQ(sock->identifier, "Normal") && sock->link == NULL) {
       /* It's a normal input and nothing is connected to it. */
       nodeAddLink(ntree, node_from, socket_from, node, sock);
diff --git a/source/blender/nodes/shader/nodes/node_shader_displacement.c b/source/blender/nodes/shader/nodes/node_shader_displacement.c
index 496b61c8c72..22fbe4e4da6 100644
--- a/source/blender/nodes/shader/nodes/node_shader_displacement.c
+++ b/source/blender/nodes/shader/nodes/node_shader_displacement.c
@@ -39,7 +39,7 @@ static void node_shader_init_displacement(bNodeTree *UNUSED(ntree), bNode *node)
   node->custom1 = SHD_SPACE_OBJECT; /* space */
 
   /* Set default value here for backwards compatibility. */
-  for (bNodeSocket *sock = node->inputs.first; sock; sock = sock->next) {
+  LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
     if (STREQ(sock->name, "Midlevel")) {
       ((bNodeSocketValueFloat *)sock->default_value)->value = 0.5f;
     }
diff --git a/source/blender/nodes/shader/nodes/node_shader_tex_brick.c b/source/blender/nodes/shader/nodes/node_shader_tex_brick.c
index eba9abc6e3c..1b802f1dfd7 100644
--- a/source/blender/nodes/shader/nodes/node_shader_tex_brick.c
+++ b/source/blender/nodes/shader/nodes/node_shader_tex_brick.c
@@ -135,7 +135,7 @@ static void node_shader_init_tex_brick(bNodeTree *UNUSED(ntree), bNode *node)
 
   node->storage = tex;
 
-  for (bNodeSocket *sock = node->inputs.first; sock; sock = sock->next) {
+  LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
     if (STREQ(sock->name, "Mortar Smooth")) {
       ((bNodeSocketValueFloat *)sock->default_value)->value = 0.1f;
     }
diff --git a/source/blender/nodes/shader/nodes/node_shader_volume_principled.c b/source/blender/nodes/shader/nodes/node_shader_volume_principled.c
index 92e1b3435c8..b581a4bd3a6 100644
--- a/source/blender/nodes/shader/nodes/node_shader_volume_principled.c
+++ b/source/blender/nodes/shader/nodes/node_shader_volume_principled.c
@@ -44,7 +44,7 @@ static bNodeSocketTemplate sh_node_volume_principled_out[] = {
 
 static void node_shader_init_volume_principled(bNodeTree *UNUSED(ntree), bNode *node)
 {
-  for (bNodeSocket *sock = node->inputs.first; sock; sock = sock->next) {
+  LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
     if (STREQ(sock->name, "Density Attribute")) {
       strcpy(((bNodeSocketValueString *)sock->default_value)->value, "density");
     }
@@ -66,7 +66,7 @@ static int node_shader_gpu_volume_principled(GPUMaterial *mat,
   /* Get volume attributes. */
   GPUNodeLink *density = NULL, *color = NULL, *temperature = NULL;
 
-  for (bNodeSocket *sock = node->inputs.first; sock; sock = sock->next) {
+  LISTBASE_FOREACH (bNodeSocket *, sock, &node->inputs) {
     if (sock->typeinfo->type != SOCK_STRING) {
       continue;
     }
diff --git a/source/blender/python/intern/bpy_capi_utils.c b/source/blender/python/intern/bpy_capi_utils.c
index 3a77e1ba797..89ef2f40a30 100644
--- a/source/blender/python/intern/bpy_capi_utils.c
+++ b/source/blender/python/intern/bpy_capi_utils.c
@@ -92,7 +92,7 @@ void BPy_reports_write_stdout(const ReportList *reports, const char *header)
     PySys_WriteStdout("%s\n", header);
   }
 
-  for (const Report *report = reports->list.first; report; report = report->next) {
+  LISTBASE_FOREACH (const Report *, report, &reports->list) {
     PySys_WriteStdout("%s: %s\n", report->typestr, report->message);
   }
 }
diff --git a/source/blender/render/intern/source/pipeline.c b/source/blender/render/intern/source/pipeline.c
index 1a97332212d..f7901ebb7d0 100644
--- a/source/blender/render/intern/source/pipeline.c
+++ b/source/blender/render/intern/source/pipeline.c
@@ -2095,14 +2095,13 @@ void RE_RenderFreestyleExternal(Render *re)
 
   FRS_init_stroke_renderer(re);
 
-  for (RenderView *rv = re->result->views.first; rv; rv = rv->next) {
+  LISTBASE_FOREACH (RenderView *, rv, &re->result->views) {
     RE_SetActiveRenderView(re, rv->name);
 
     ViewLayer *active_view_layer = BLI_findlink(&re->view_layers, re->active_view_layer);
     FRS_begin_stroke_rendering(re);
 
-    for (ViewLayer *view_layer = (ViewLayer *)re->view_layers.first; view_layer;
-         view_layer = view_layer->next) {
+    LISTBASE_FOREACH (ViewLayer *, view_layer, &re->view_layers) {
       if ((re->r.scemode & R_SINGLE_LAYER) && view_layer != active_view_layer) {
         continue;
       }
@@ -2866,7 +2865,7 @@ bool RE_layers_have_name(struct RenderResult *rr)
 
 bool RE_passes_have_name(struct RenderLayer *rl)
 {
-  for (RenderPass *rp = rl->passes.first; rp; rp = rp->next) {
+  LISTBASE_FOREACH (RenderPass *, rp, &rl->passes) {
     if (!STREQ(rp->name, "Combined")) {
       return true;
     }
diff --git a/source/blender/render/intern/source/render_result.c b/source/blender/render/intern/source/render_result.c
index 814e9b1c79e..b38c1b573f3 100644
--- a/source/blender/render/intern/source/render_result.c
+++ b/source/blender/render/intern/source/render_result.c
@@ -917,7 +917,7 @@ bool RE_WriteRenderResult(ReportList *reports,
 
   /* First add views since IMB_exr_add_channel checks number of views. */
   if (render_result_has_views(rr)) {
-    for (RenderView *rview = rr->views.first; rview; rview = rview->next) {
+    LISTBASE_FOREACH (RenderView *, rview, &rr->views) {
       if (!view || STREQ(view, rview->name)) {
         IMB_exr_add_view(exrhandle, rview->name);
       }
@@ -926,7 +926,7 @@ bool RE_WriteRenderResult(ReportList *reports,
 
   /* Compositing result. */
   if (rr->have_combined) {
-    for (RenderView *rview = rr->views.first; rview; rview = rview->next) {
+    LISTBASE_FOREACH (RenderView *, rview, &rr->views) {
       if (!rview->rectf) {
         continue;
       }
@@ -986,7 +986,7 @@ bool RE_WriteRenderResult(ReportList *reports,
       continue;
     }
 
-    for (RenderPass *rp = rl->passes.first; rp; rp = rp->next) {
+    LISTBASE_FOREACH (RenderPass *, rp, &rl->passes) {
       /* Skip non-RGBA and Z passes if not using multi layer. */
       if (!multi_layer && !(STREQ(rp->name, RE_PASSNAME_COMBINED) || STREQ(rp->name, "") ||
                             (STREQ(rp->name, RE_PASSNAME_Z) && write_z))) {
@@ -1240,7 +1240,7 @@ void render_result_exr_file_begin(Render *re, RenderEngine *engine)
   char str[FILE_MAX];
 
   for (RenderResult *rr = re->result; rr; rr = rr->next) {
-    for (RenderLayer *rl = rr->layers.first; rl; rl = rl->next) {
+    LISTBASE_FOREACH (RenderLayer *, rl, &rr->layers) {
       /* Get passes needed by engine. Normally we would wait for the
        * engine to create them, but for EXR file we need to know in
        * advance. */
@@ -1250,7 +1250,7 @@ void render_result_exr_file_begin(Render *re, RenderEngine *engine)
       /* Create render passes requested by engine. Only this part is
        * mutex locked to avoid deadlock with Python GIL. */
       BLI_rw_mutex_lock(&re->resultmutex, THREAD_LOCK_WRITE);
-      for (RenderPass *pass = templates.first; pass; pass = pass->next) {
+      LISTBASE_FOREACH (RenderPass *, pass, &templates) {
         RE_create_render_pass(
             re->result, pass->name, pass->channels, pass->chan_id, rl->name, NULL);
       }
@@ -1271,7 +1271,7 @@ void render_result_exr_file_end(Render *re, RenderEngine *engine)
 {
   /* Close EXR files. */
   for (RenderResult *rr = re->result; rr; rr = rr->next) {
-    for (RenderLayer *rl = rr->layers.first; rl; rl = rl->next) {
+    LISTBASE_FOREACH (RenderLayer *, rl, &rr->layers) {
       IMB_exr_close(rl->exrhandle);
       rl->exrhandle = NULL;
     }
@@ -1285,7 +1285,7 @@ void render_result_exr_file_end(Render *re, RenderEngine *engine)
   re->result = render_result_new(re, &re->disprect, 0, RR_USE_MEM, RR_ALL_LAYERS, RR_ALL_VIEWS);
   BLI_rw_mutex_unlock(&re->resultmutex);
 
-  for (RenderLayer *rl = re->result->layers.first; rl; rl = rl->next) {
+  LISTBASE_FOREACH (RenderLayer *, rl, &re->result->layers) {
     /* Get passes needed by engine. */
     ListBase templates;
     render_result_get_pass_templates(engine, re, rl, &templates);
@@ -1293,7 +1293,7 @@ void render_result_exr_file_end(Render *re, RenderEngine *engine)
     /* Create render passes requested by engine. Only this part is
      * mutex locked to avoid deadlock with Python GIL. */
     BLI_rw_mutex_lock(&re->resultmutex, THREAD_LOCK_WRITE);
-    for (RenderPass *pass = templates.first; pass; pass = pass->next) {
+    LISTBASE_FOREACH (RenderPass *, pass, &templates) {
       RE_create_render_pass(re->result, pass->name, pass->channels, pass->chan_id, rl->name, NULL);
     }
 
diff --git a/source/blender/windowmanager/gizmo/intern/wm_gizmo_group.c b/source/blender/windowmanager/gizmo/intern/wm_gizmo_group.c
index 90a3234abd5..67f30f0d7ee 100644
--- a/source/blender/windowmanager/gizmo/intern/wm_gizmo_group.c
+++ b/source/blender/windowmanager/gizmo/intern/wm_gizmo_group.c
@@ -222,7 +222,7 @@ wmGizmo *wm_gizmogroup_find_intersected_gizmo(wmWindowManager *wm,
 {
   int gzgroup_keymap_uses_modifier = -1;
 
-  for (wmGizmo *gz = gzgroup->gizmos.first; gz; gz = gz->next) {
+  LISTBASE_FOREACH (wmGizmo *, gz, &gzgroup->gizmos) {
     if (gz->type->test_select && (gz->flag & (WM_GIZMO_HIDDEN | WM_GIZMO_HIDDEN_SELECT)) == 0) {
 
       if (!wm_gizmo_keymap_uses_event_modifier(
@@ -299,9 +299,9 @@ void WM_gizmo_group_remove_by_tool(bContext *C,
 {
   wmGizmoMapType *gzmap_type = WM_gizmomaptype_find(&gzgt->gzmap_params);
   for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
       if (area->runtime.tool == tref) {
-        for (ARegion *region = area->regionbase.first; region; region = region->next) {
+        LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
           wmGizmoMap *gzmap = region->gizmo_map;
           if (gzmap && gzmap->type == gzmap_type) {
             wmGizmoGroup *gzgroup, *gzgroup_next;
@@ -337,7 +337,7 @@ bool wm_gizmogroup_is_visible_in_drawstep(const wmGizmoGroup *gzgroup,
 bool wm_gizmogroup_is_any_selected(const wmGizmoGroup *gzgroup)
 {
   if (gzgroup->type->flag & WM_GIZMOGROUPTYPE_SELECT) {
-    for (const wmGizmo *gz = gzgroup->gizmos.first; gz; gz = gz->next) {
+    LISTBASE_FOREACH (const wmGizmo *, gz, &gzgroup->gizmos) {
       if (gz->state & WM_GIZMO_STATE_SELECT) {
         return true;
       }
@@ -850,8 +850,7 @@ struct wmGizmoGroupTypeRef *WM_gizmomaptype_group_find_ptr(struct wmGizmoMapType
                                                            const wmGizmoGroupType *gzgt)
 {
   /* could use hash lookups as operator types do, for now simple search. */
-  for (wmGizmoGroupTypeRef *gzgt_ref = gzmap_type->grouptype_refs.first; gzgt_ref;
-       gzgt_ref = gzgt_ref->next) {
+  LISTBASE_FOREACH (wmGizmoGroupTypeRef *, gzgt_ref, &gzmap_type->grouptype_refs) {
     if (gzgt_ref->type == gzgt) {
       return gzgt_ref;
     }
@@ -863,8 +862,7 @@ struct wmGizmoGroupTypeRef *WM_gizmomaptype_group_find(struct wmGizmoMapType *gz
                                                        const char *idname)
 {
   /* could use hash lookups as operator types do, for now simple search. */
-  for (wmGizmoGroupTypeRef *gzgt_ref = gzmap_type->grouptype_refs.first; gzgt_ref;
-       gzgt_ref = gzgt_ref->next) {
+  LISTBASE_FOREACH (wmGizmoGroupTypeRef *, gzgt_ref, &gzmap_type->grouptype_refs) {
     if (STREQ(idname, gzgt_ref->type->idname)) {
       return gzgt_ref;
     }
@@ -909,10 +907,10 @@ void WM_gizmomaptype_group_init_runtime(const Main *bmain,
 
   /* now create a gizmo for all existing areas */
   for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-      for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+      LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
         ListBase *lb = (sl == area->spacedata.first) ? &area->regionbase : &sl->regionbase;
-        for (ARegion *region = lb->first; region; region = region->next) {
+        LISTBASE_FOREACH (ARegion *, region, lb) {
           wmGizmoMap *gzmap = region->gizmo_map;
           if (gzmap && gzmap->type == gzmap_type) {
             WM_gizmomaptype_group_init_runtime_with_region(gzmap_type, gzgt, region);
@@ -964,10 +962,10 @@ void WM_gizmomaptype_group_unlink(bContext *C,
 {
   /* Free instances. */
   for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-      for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+      LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
         ListBase *lb = (sl == area->spacedata.first) ? &area->regionbase : &sl->regionbase;
-        for (ARegion *region = lb->first; region; region = region->next) {
+        LISTBASE_FOREACH (ARegion *, region, lb) {
           wmGizmoMap *gzmap = region->gizmo_map;
           if (gzmap && gzmap->type == gzmap_type) {
             wmGizmoGroup *gzgroup, *gzgroup_next;
@@ -1134,10 +1132,10 @@ void WM_gizmo_group_unlink_delayed_ptr_from_space(wmGizmoGroupType *gzgt,
                                                   wmGizmoMapType *gzmap_type,
                                                   ScrArea *area)
 {
-  for (ARegion *region = area->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
     wmGizmoMap *gzmap = region->gizmo_map;
     if (gzmap && gzmap->type == gzmap_type) {
-      for (wmGizmoGroup *gzgroup = gzmap->groups.first; gzgroup; gzgroup = gzgroup->next) {
+      LISTBASE_FOREACH (wmGizmoGroup *, gzgroup, &gzmap->groups) {
         if (gzgroup->type == gzgt) {
           WM_gizmo_group_tag_remove(gzgroup);
         }
diff --git a/source/blender/windowmanager/gizmo/intern/wm_gizmo_map.c b/source/blender/windowmanager/gizmo/intern/wm_gizmo_map.c
index ae7475c3661..6ed6c485e89 100644
--- a/source/blender/windowmanager/gizmo/intern/wm_gizmo_map.c
+++ b/source/blender/windowmanager/gizmo/intern/wm_gizmo_map.c
@@ -171,8 +171,7 @@ static wmGizmoMap *wm_gizmomap_new_from_type_ex(struct wmGizmoMapType *gzmap_typ
 
   /* create all gizmo-groups for this gizmo-map. We may create an empty one
    * too in anticipation of gizmos from operators etc */
-  for (wmGizmoGroupTypeRef *gzgt_ref = gzmap_type->grouptype_refs.first; gzgt_ref;
-       gzgt_ref = gzgt_ref->next) {
+  LISTBASE_FOREACH (wmGizmoGroupTypeRef *, gzgt_ref, &gzmap_type->grouptype_refs) {
     wm_gizmogroup_new_from_type(gzmap, gzgt_ref->type);
   }
 
@@ -231,7 +230,7 @@ wmGizmoGroup *WM_gizmomap_group_find(struct wmGizmoMap *gzmap, const char *idnam
 wmGizmoGroup *WM_gizmomap_group_find_ptr(struct wmGizmoMap *gzmap,
                                          const struct wmGizmoGroupType *gzgt)
 {
-  for (wmGizmoGroup *gzgroup = gzmap->groups.first; gzgroup; gzgroup = gzgroup->next) {
+  LISTBASE_FOREACH (wmGizmoGroup *, gzgroup, &gzmap->groups) {
     if (gzgroup->type == gzgt) {
       return gzgroup;
     }
@@ -290,9 +289,9 @@ static GHash *WM_gizmomap_gizmo_hash_new(const bContext *C,
   GHash *hash = BLI_ghash_ptr_new(__func__);
 
   /* collect gizmos */
-  for (wmGizmoGroup *gzgroup = gzmap->groups.first; gzgroup; gzgroup = gzgroup->next) {
+  LISTBASE_FOREACH (wmGizmoGroup *, gzgroup, &gzmap->groups) {
     if (WM_gizmo_group_type_poll(C, gzgroup->type)) {
-      for (wmGizmo *gz = gzgroup->gizmos.first; gz; gz = gz->next) {
+      LISTBASE_FOREACH (wmGizmo *, gz, &gzgroup->gizmos) {
         if (((flag_exclude == 0) || ((gz->flag & flag_exclude) == 0)) &&
             (!poll || poll(gz, data))) {
           BLI_ghash_insert(hash, gz, gz);
@@ -335,7 +334,7 @@ void WM_gizmomap_tag_refresh(wmGizmoMap *gzmap)
 
 bool WM_gizmomap_tag_delay_refresh_for_tweak_check(wmGizmoMap *gzmap)
 {
-  for (wmGizmoGroup *gzgroup = gzmap->groups.first; gzgroup; gzgroup = gzgroup->next) {
+  LISTBASE_FOREACH (wmGizmoGroup *, gzgroup, &gzmap->groups) {
     if (gzgroup->hide.delay_refresh_for_tweak) {
       return true;
     }
@@ -403,7 +402,7 @@ static void gizmomap_prepare_drawing(wmGizmoMap *gzmap,
   const bool do_refresh = gzmap->update_flag[drawstep] & GIZMOMAP_IS_REFRESH_CALLBACK;
   gzmap->update_flag[drawstep] &= ~GIZMOMAP_IS_REFRESH_CALLBACK;
 
-  for (wmGizmoGroup *gzgroup = gzmap->groups.first; gzgroup; gzgroup = gzgroup->next) {
+  LISTBASE_FOREACH (wmGizmoGroup *, gzgroup, &gzmap->groups) {
     /* check group visibility - drawstep first to avoid unnecessary call of group poll callback */
     if (!wm_gizmogroup_is_visible_in_drawstep(gzgroup, drawstep) ||
         !WM_gizmo_group_type_poll(C, gzgroup->type)) {
@@ -430,7 +429,7 @@ static void gizmomap_prepare_drawing(wmGizmoMap *gzmap,
       gzgroup->type->draw_prepare(C, gzgroup);
     }
 
-    for (wmGizmo *gz = gzgroup->gizmos.first; gz; gz = gz->next) {
+    LISTBASE_FOREACH (wmGizmo *, gz, &gzgroup->gizmos) {
       gizmo_prepare_drawing(gzmap, gz, C, draw_gizmos, drawstep);
     }
   }
@@ -751,7 +750,7 @@ wmGizmo *wm_gizmomap_highlight_find(wmGizmoMap *gzmap,
 
   const int event_modifier = WM_event_modifier_flag(event);
 
-  for (wmGizmoGroup *gzgroup = gzmap->groups.first; gzgroup; gzgroup = gzgroup->next) {
+  LISTBASE_FOREACH (wmGizmoGroup *, gzgroup, &gzmap->groups) {
 
     /* If it were important we could initialize here,
      * but this only happens when events are handled before drawing,
@@ -1165,12 +1164,12 @@ void WM_gizmomap_message_subscribe(bContext *C,
                                    ARegion *region,
                                    struct wmMsgBus *mbus)
 {
-  for (wmGizmoGroup *gzgroup = gzmap->groups.first; gzgroup; gzgroup = gzgroup->next) {
+  LISTBASE_FOREACH (wmGizmoGroup *, gzgroup, &gzmap->groups) {
     if ((gzgroup->hide.any != 0) || (gzgroup->init_flag & WM_GIZMOGROUP_INIT_SETUP) == 0 ||
         !WM_gizmo_group_type_poll(C, gzgroup->type)) {
       continue;
     }
-    for (wmGizmo *gz = gzgroup->gizmos.first; gz; gz = gz->next) {
+    LISTBASE_FOREACH (wmGizmo *, gz, &gzgroup->gizmos) {
       if (gz->flag & WM_GIZMO_HIDDEN) {
         continue;
       }
@@ -1220,8 +1219,7 @@ struct ARegion *WM_gizmomap_tooltip_init(struct bContext *C,
 
 wmGizmoMapType *WM_gizmomaptype_find(const struct wmGizmoMapType_Params *gzmap_params)
 {
-  for (wmGizmoMapType *gzmap_type = gizmomaptypes.first; gzmap_type;
-       gzmap_type = gzmap_type->next) {
+  LISTBASE_FOREACH (wmGizmoMapType *, gzmap_type, &gizmomaptypes) {
     if (gzmap_type->spaceid == gzmap_params->spaceid &&
         gzmap_type->regionid == gzmap_params->regionid) {
       return gzmap_type;
@@ -1269,10 +1267,8 @@ void wm_gizmos_keymap(wmKeyConfig *keyconf)
   /* we add this item-less keymap once and use it to group gizmo-group keymaps into it */
   WM_keymap_ensure(keyconf, "Gizmos", 0, 0);
 
-  for (wmGizmoMapType *gzmap_type = gizmomaptypes.first; gzmap_type;
-       gzmap_type = gzmap_type->next) {
-    for (wmGizmoGroupTypeRef *gzgt_ref = gzmap_type->grouptype_refs.first; gzgt_ref;
-         gzgt_ref = gzgt_ref->next) {
+  LISTBASE_FOREACH (wmGizmoMapType *, gzmap_type, &gizmomaptypes) {
+    LISTBASE_FOREACH (wmGizmoGroupTypeRef *, gzgt_ref, &gzmap_type->grouptype_refs) {
       wm_gizmogrouptype_setup_keymap(gzgt_ref->type, keyconf);
     }
   }
@@ -1328,8 +1324,7 @@ void WM_gizmoconfig_update(struct Main *bmain)
   }
 
   if (wm_gzmap_type_update_flag & WM_GIZMOMAPTYPE_GLOBAL_UPDATE_REMOVE) {
-    for (wmGizmoMapType *gzmap_type = gizmomaptypes.first; gzmap_type;
-         gzmap_type = gzmap_type->next) {
+    LISTBASE_FOREACH (wmGizmoMapType *, gzmap_type, &gizmomaptypes) {
       if (gzmap_type->type_update_flag & WM_GIZMOMAPTYPE_GLOBAL_UPDATE_REMOVE) {
         gzmap_type->type_update_flag &= ~WM_GIZMOMAPTYPE_UPDATE_REMOVE;
         for (wmGizmoGroupTypeRef *gzgt_ref = gzmap_type->grouptype_refs.first, *gzgt_ref_next;
@@ -1348,13 +1343,11 @@ void WM_gizmoconfig_update(struct Main *bmain)
   }
 
   if (wm_gzmap_type_update_flag & WM_GIZMOMAPTYPE_GLOBAL_UPDATE_INIT) {
-    for (wmGizmoMapType *gzmap_type = gizmomaptypes.first; gzmap_type;
-         gzmap_type = gzmap_type->next) {
+    LISTBASE_FOREACH (wmGizmoMapType *, gzmap_type, &gizmomaptypes) {
       const uchar type_update_all = WM_GIZMOMAPTYPE_UPDATE_INIT | WM_GIZMOMAPTYPE_KEYMAP_INIT;
       if (gzmap_type->type_update_flag & type_update_all) {
         gzmap_type->type_update_flag &= ~type_update_all;
-        for (wmGizmoGroupTypeRef *gzgt_ref = gzmap_type->grouptype_refs.first; gzgt_ref;
-             gzgt_ref = gzgt_ref->next) {
+        LISTBASE_FOREACH (wmGizmoGroupTypeRef *, gzgt_ref, &gzmap_type->grouptype_refs) {
           if (gzgt_ref->type->type_update_flag & WM_GIZMOMAPTYPE_KEYMAP_INIT) {
             WM_gizmomaptype_group_init_runtime_keymap(bmain, gzgt_ref->type);
             gzgt_ref->type->type_update_flag &= ~WM_GIZMOMAPTYPE_KEYMAP_INIT;
@@ -1373,11 +1366,11 @@ void WM_gizmoconfig_update(struct Main *bmain)
 
   if (wm_gzmap_type_update_flag & WM_GIZMOTYPE_GLOBAL_UPDATE_REMOVE) {
     for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-        for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
           ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
                                                                  &sl->regionbase;
-          for (ARegion *region = regionbase->first; region; region = region->next) {
+          LISTBASE_FOREACH (ARegion *, region, regionbase) {
             wmGizmoMap *gzmap = region->gizmo_map;
             if (gzmap != NULL && gzmap->tag_remove_group) {
               gzmap->tag_remove_group = false;
@@ -1411,10 +1404,10 @@ void WM_gizmoconfig_update(struct Main *bmain)
 void WM_reinit_gizmomap_all(Main *bmain)
 {
   for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-      for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+      LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
         ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase : &sl->regionbase;
-        for (ARegion *region = regionbase->first; region; region = region->next) {
+        LISTBASE_FOREACH (ARegion *, region, regionbase) {
           wmGizmoMap *gzmap = region->gizmo_map;
           if ((gzmap != NULL) && (gzmap->is_init == false)) {
             WM_gizmomap_reinit(gzmap);
diff --git a/source/blender/windowmanager/gizmo/intern/wm_gizmo_type.c b/source/blender/windowmanager/gizmo/intern/wm_gizmo_type.c
index fe7de6739e1..3956ff8fd36 100644
--- a/source/blender/windowmanager/gizmo/intern/wm_gizmo_type.c
+++ b/source/blender/windowmanager/gizmo/intern/wm_gizmo_type.c
@@ -135,10 +135,10 @@ static void gizmotype_unlink(bContext *C, Main *bmain, wmGizmoType *gzt)
 {
   /* Free instances. */
   for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-      for (SpaceLink *sl = area->spacedata.first; sl; sl = sl->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+      LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
         ListBase *lb = (sl == area->spacedata.first) ? &area->regionbase : &sl->regionbase;
-        for (ARegion *region = lb->first; region; region = region->next) {
+        LISTBASE_FOREACH (ARegion *, region, lb) {
           wmGizmoMap *gzmap = region->gizmo_map;
           if (gzmap) {
             wmGizmoGroup *gzgroup;
diff --git a/source/blender/windowmanager/intern/wm_dragdrop.c b/source/blender/windowmanager/intern/wm_dragdrop.c
index 44c8e8cd61e..ad3fc7a1302 100644
--- a/source/blender/windowmanager/intern/wm_dragdrop.c
+++ b/source/blender/windowmanager/intern/wm_dragdrop.c
@@ -204,7 +204,7 @@ static const char *dropbox_active(bContext *C,
     if (handler_base->type == WM_HANDLER_TYPE_DROPBOX) {
       wmEventHandler_Dropbox *handler = (wmEventHandler_Dropbox *)handler_base;
       if (handler->dropboxes) {
-        for (wmDropBox *drop = handler->dropboxes->first; drop; drop = drop->next) {
+        LISTBASE_FOREACH (wmDropBox *, drop, handler->dropboxes) {
           const char *tooltip = NULL;
           if (drop->poll(C, drag, event, &tooltip)) {
             /* XXX Doing translation here might not be ideal, but later we have no more
@@ -290,7 +290,7 @@ void wm_drags_check_ops(bContext *C, const wmEvent *event)
 void WM_drag_add_ID(wmDrag *drag, ID *id, ID *from_parent)
 {
   /* Don't drag the same ID twice. */
-  for (wmDragID *drag_id = drag->ids.first; drag_id; drag_id = drag_id->next) {
+  LISTBASE_FOREACH (wmDragID *, drag_id, &drag->ids) {
     if (drag_id->id == id) {
       if (drag_id->from_parent == NULL) {
         drag_id->from_parent = from_parent;
diff --git a/source/blender/windowmanager/intern/wm_draw.c b/source/blender/windowmanager/intern/wm_draw.c
index bd255458ba8..d887d9b0eee 100644
--- a/source/blender/windowmanager/intern/wm_draw.c
+++ b/source/blender/windowmanager/intern/wm_draw.c
@@ -209,8 +209,7 @@ static void wm_region_test_gizmo_do_draw(bContext *C,
   }
 
   wmGizmoMap *gzmap = region->gizmo_map;
-  for (wmGizmoGroup *gzgroup = WM_gizmomap_group_list(gzmap)->first; gzgroup;
-       gzgroup = gzgroup->next) {
+  LISTBASE_FOREACH (wmGizmoGroup *, gzgroup, WM_gizmomap_group_list(gzmap)) {
     if (tag_redraw && (gzgroup->type->flag & WM_GIZMOGROUPTYPE_VR_REDRAWS)) {
       ScrArea *ctx_area = CTX_wm_area(C);
       ARegion *ctx_region = CTX_wm_region(C);
@@ -227,7 +226,7 @@ static void wm_region_test_gizmo_do_draw(bContext *C,
       CTX_wm_region_set(C, ctx_region);
     }
 
-    for (wmGizmo *gz = gzgroup->gizmos.first; gz; gz = gz->next) {
+    LISTBASE_FOREACH (wmGizmo *, gz, &gzgroup->gizmos) {
       if (gz->do_draw) {
         if (tag_redraw) {
           ED_region_tag_redraw_editor_overlays(region);
@@ -323,7 +322,7 @@ void *WM_draw_cb_activate(wmWindow *win,
 
 void WM_draw_cb_exit(wmWindow *win, void *handle)
 {
-  for (WindowDrawCB *wdc = win->drawcalls.first; wdc; wdc = wdc->next) {
+  LISTBASE_FOREACH (WindowDrawCB *, wdc, &win->drawcalls) {
     if (wdc == (WindowDrawCB *)handle) {
       BLI_remlink(&win->drawcalls, wdc);
       MEM_freeN(wdc);
@@ -334,7 +333,7 @@ void WM_draw_cb_exit(wmWindow *win, void *handle)
 
 static void wm_draw_callbacks(wmWindow *win)
 {
-  for (WindowDrawCB *wdc = win->drawcalls.first; wdc; wdc = wdc->next) {
+  LISTBASE_FOREACH (WindowDrawCB *, wdc, &win->drawcalls) {
     wdc->draw(win, wdc->customdata);
   }
 }
@@ -624,7 +623,7 @@ static void wm_draw_window_offscreen(bContext *C, wmWindow *win, bool stereo)
     CTX_wm_area_set(C, area);
 
     /* Compute UI layouts for dynamically size regions. */
-    for (ARegion *region = area->regionbase.first; region; region = region->next) {
+    LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
       /* Dynamic region may have been flagged as too small because their size on init is 0.
        * ARegion.visible is false then, as expected. The layout should still be created then, so
        * the region size can be updated (it may turn out to be not too small then). */
@@ -650,7 +649,7 @@ static void wm_draw_window_offscreen(bContext *C, wmWindow *win, bool stereo)
     }
 
     /* Then do actual drawing of regions. */
-    for (ARegion *region = area->regionbase.first; region; region = region->next) {
+    LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
       if (region->visible && region->do_draw) {
         CTX_wm_region_set(C, region);
         bool use_viewport = wm_region_use_viewport(area, region);
@@ -694,7 +693,7 @@ static void wm_draw_window_offscreen(bContext *C, wmWindow *win, bool stereo)
   }
 
   /* Draw menus into their own framebuffer. */
-  for (ARegion *region = screen->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, &screen->regionbase) {
     if (region->visible) {
       CTX_wm_menu_set(C, region);
 
@@ -737,7 +736,7 @@ static void wm_draw_window_onscreen(bContext *C, wmWindow *win, int view)
   /* Blit non-overlapping area regions. */
   ED_screen_areas_iter(win, screen, area)
   {
-    for (ARegion *region = area->regionbase.first; region; region = region->next) {
+    LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
       if (region->visible && region->overlap == false) {
         /* Blit from offscreen buffer. */
         wm_draw_region_blit(region, view);
@@ -749,7 +748,7 @@ static void wm_draw_window_onscreen(bContext *C, wmWindow *win, int view)
   if (wm->paintcursors.first) {
     ED_screen_areas_iter(win, screen, area)
     {
-      for (ARegion *region = area->regionbase.first; region; region = region->next) {
+      LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
         if (region->visible && region == screen->active_region) {
           CTX_wm_area_set(C, area);
           CTX_wm_region_set(C, region);
@@ -769,7 +768,7 @@ static void wm_draw_window_onscreen(bContext *C, wmWindow *win, int view)
   /* Blend in overlapping area regions */
   ED_screen_areas_iter(win, screen, area)
   {
-    for (ARegion *region = area->regionbase.first; region; region = region->next) {
+    LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
       if (region->visible && region->overlap) {
         wm_draw_region_blend(region, 0, true);
       }
@@ -781,7 +780,7 @@ static void wm_draw_window_onscreen(bContext *C, wmWindow *win, int view)
   wm_draw_callbacks(win);
 
   /* Blend in floating regions (menus). */
-  for (ARegion *region = screen->regionbase.first; region; region = region->next) {
+  LISTBASE_FOREACH (ARegion *, region, &screen->regionbase) {
     if (region->visible) {
       wm_draw_region_blend(region, 0, true);
     }
@@ -958,7 +957,7 @@ static void wm_draw_update_clear_window(bContext *C, wmWindow *win)
 
   ED_screen_areas_iter(win, screen, area)
   {
-    for (ARegion *region = area->regionbase.first; region; region = region->next) {
+    LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
       wm_region_test_gizmo_do_draw(C, area, region, false);
     }
   }
diff --git a/source/blender/windowmanager/intern/wm_event_system.c b/source/blender/windowmanager/intern/wm_event_system.c
index 7645ac6fdcf..15b6fe53417 100644
--- a/source/blender/windowmanager/intern/wm_event_system.c
+++ b/source/blender/windowmanager/intern/wm_event_system.c
@@ -192,7 +192,7 @@ void wm_event_init_from_window(wmWindow *win, wmEvent *event)
 
 static bool wm_test_duplicate_notifier(const wmWindowManager *wm, uint type, void *reference)
 {
-  for (wmNotifier *note = wm->queue.first; note; note = note->next) {
+  LISTBASE_FOREACH (wmNotifier *, note, &wm->queue) {
     if ((note->category | note->data | note->subtype | note->action) == type &&
         note->reference == reference) {
       return 1;
@@ -329,14 +329,14 @@ void wm_event_do_depsgraph(bContext *C, bool is_after_open_file)
   }
   /* Combine datamasks so 1 win doesn't disable UV's in another [#26448]. */
   CustomData_MeshMasks win_combine_v3d_datamask = {0};
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     const Scene *scene = WM_window_get_active_scene(win);
     const bScreen *screen = WM_window_get_active_screen(win);
 
     ED_view3d_screen_datamask(C, scene, screen, &win_combine_v3d_datamask);
   }
   /* Update all the dependency graphs of visible view layers. */
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     Scene *scene = WM_window_get_active_scene(win);
     ViewLayer *view_layer = WM_window_get_active_view_layer(win);
     Main *bmain = CTX_data_main(C);
@@ -369,7 +369,7 @@ void wm_event_do_refresh_wm_and_depsgraph(bContext *C)
 {
   wmWindowManager *wm = CTX_wm_manager(C);
   /* cached: editor refresh callbacks now, they get context */
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     const bScreen *screen = WM_window_get_active_screen(win);
     ScrArea *area;
 
@@ -1867,7 +1867,7 @@ static wmKeyMapItem *wm_eventmatch_modal_keymap_items(const wmKeyMap *keymap,
                                                       wmOperator *op,
                                                       const wmEvent *event)
 {
-  for (wmKeyMapItem *kmi = keymap->items.first; kmi; kmi = kmi->next) {
+  LISTBASE_FOREACH (wmKeyMapItem *, kmi, &keymap->items) {
     /* Should already be handled by #wm_user_modal_keymap_set_items. */
     BLI_assert(kmi->propvalue_str[0] == '\0');
     if (wm_eventmatch(event, kmi)) {
@@ -2405,7 +2405,7 @@ static int wm_handlers_do_keymap_with_keymap_handler(
 
       PRINT("pass\n");
 
-      for (wmKeyMapItem *kmi = keymap->items.first; kmi; kmi = kmi->next) {
+      LISTBASE_FOREACH (wmKeyMapItem *, kmi, &keymap->items) {
         if (wm_eventmatch(event, kmi)) {
           struct wmEventHandler_KeymapPost keymap_post = handler->post;
 
@@ -2610,7 +2610,7 @@ static int wm_handlers_do_gizmo_handler(bContext *C,
           event_test_tweak.type = EVT_TWEAK_L + (event->type - LEFTMOUSE);
           event_test_tweak.val = KM_ANY;
 
-          for (wmKeyMapItem *kmi = keymap->items.first; kmi; kmi = kmi->next) {
+          LISTBASE_FOREACH (wmKeyMapItem *, kmi, &keymap->items) {
             if ((kmi->flag & KMI_INACTIVE) == 0) {
               if (wm_eventmatch(&event_test_click, kmi) ||
                   wm_eventmatch(&event_test_click_drag, kmi) ||
@@ -2635,7 +2635,7 @@ static int wm_handlers_do_gizmo_handler(bContext *C,
     if ((action & WM_HANDLER_BREAK) == 0) {
       if (WM_gizmomap_is_any_selected(gzmap)) {
         const ListBase *groups = WM_gizmomap_group_list(gzmap);
-        for (wmGizmoGroup *gzgroup = groups->first; gzgroup; gzgroup = gzgroup->next) {
+        LISTBASE_FOREACH (wmGizmoGroup *, gzgroup, groups) {
           if (wm_gizmogroup_is_any_selected(gzgroup)) {
             wmKeyMap *keymap = WM_keymap_active(wm, gzgroup->type->keymap);
             action |= wm_handlers_do_keymap_with_gizmo_handler(
@@ -3614,7 +3614,7 @@ wmKeyMap *WM_event_get_keymap_from_toolsystem_fallback(wmWindowManager *wm,
     if (tref_rt->gizmo_group[0] != '\0' && tref_rt->keymap_fallback[0] != '\n') {
       wmGizmoMap *gzmap = NULL;
       wmGizmoGroup *gzgroup = NULL;
-      for (ARegion *region = area->regionbase.first; region; region = region->next) {
+      LISTBASE_FOREACH (ARegion *, region, &area->regionbase) {
         if (region->gizmo_map != NULL) {
           gzmap = region->gizmo_map;
           gzgroup = WM_gizmomap_group_find(gzmap, tref_rt->gizmo_group);
@@ -4774,7 +4774,7 @@ wmKeyMap *WM_event_get_keymap_from_handler(wmWindowManager *wm, wmEventHandler_K
 
 wmKeyMapItem *WM_event_match_keymap_item(bContext *C, wmKeyMap *keymap, const wmEvent *event)
 {
-  for (wmKeyMapItem *kmi = keymap->items.first; kmi; kmi = kmi->next) {
+  LISTBASE_FOREACH (wmKeyMapItem *, kmi, &keymap->items) {
     if (wm_eventmatch(event, kmi)) {
       wmOperatorType *ot = WM_operatortype_find(kmi->idname, 0);
       if (WM_operator_poll_context(C, ot, WM_OP_INVOKE_DEFAULT)) {
@@ -4881,7 +4881,7 @@ ScrArea *WM_window_status_area_find(wmWindow *win, bScreen *screen)
     return NULL;
   }
   ScrArea *area_statusbar = NULL;
-  for (ScrArea *area = win->global_areas.areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &win->global_areas.areabase) {
     if (area->spacetype == SPACE_STATUSBAR) {
       area_statusbar = area;
       break;
diff --git a/source/blender/windowmanager/intern/wm_files.c b/source/blender/windowmanager/intern/wm_files.c
index 3c8b6b1c9d4..95c7afcbf15 100644
--- a/source/blender/windowmanager/intern/wm_files.c
+++ b/source/blender/windowmanager/intern/wm_files.c
@@ -236,7 +236,7 @@ static void wm_window_match_keep_current_wm(const bContext *C,
 
   /* when loading without UI, no matching needed */
   if (load_ui && (screen = CTX_wm_screen(C))) {
-    for (wmWindow *win = wm->windows.first; win; win = win->next) {
+    LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
       WorkSpace *workspace;
 
       BKE_workspace_layout_find_global(bmain, screen, &workspace);
@@ -294,8 +294,8 @@ static void wm_window_match_replace_by_file_wm(bContext *C,
   wm_window_clear_drawable(oldwm);
 
   /* only first wm in list has ghostwins */
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
-    for (wmWindow *oldwin = oldwm->windows.first; oldwin; oldwin = oldwin->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
+    LISTBASE_FOREACH (wmWindow *, oldwin, &oldwm->windows) {
       if (oldwin->winid == win->winid) {
         has_match = true;
 
@@ -1507,7 +1507,7 @@ void wm_autosave_timer(Main *bmain, wmWindowManager *wm, wmTimer *UNUSED(wt))
   WM_event_remove_timer(wm, NULL, wm->autosavetimer);
 
   /* if a modal operator is running, don't autosave, but try again in 10 seconds */
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     LISTBASE_FOREACH (wmEventHandler *, handler_base, &win->modalhandlers) {
       if (handler_base->type == WM_HANDLER_TYPE_OP) {
         wmEventHandler_Op *handler = (wmEventHandler_Op *)handler_base;
diff --git a/source/blender/windowmanager/intern/wm_jobs.c b/source/blender/windowmanager/intern/wm_jobs.c
index 33ea6dc54cc..245a8f28fec 100644
--- a/source/blender/windowmanager/intern/wm_jobs.c
+++ b/source/blender/windowmanager/intern/wm_jobs.c
@@ -254,7 +254,7 @@ static void wm_jobs_update_progress_bars(wmWindowManager *wm)
   float total_progress = 0.f;
   float jobs_progress = 0;
 
-  for (wmJob *wm_job = wm->jobs.first; wm_job; wm_job = wm_job->next) {
+  LISTBASE_FOREACH (wmJob *, wm_job, &wm->jobs) {
     if (wm_job->threads.first && !wm_job->ready) {
       if (wm_job->flag & WM_JOB_PROGRESS) {
         /* accumulate global progress for running jobs */
diff --git a/source/blender/windowmanager/intern/wm_keymap.c b/source/blender/windowmanager/intern/wm_keymap.c
index 97a73d9dbfa..5f2b492088e 100644
--- a/source/blender/windowmanager/intern/wm_keymap.c
+++ b/source/blender/windowmanager/intern/wm_keymap.c
@@ -278,7 +278,7 @@ wmKeyConfig *WM_keyconfig_new(wmWindowManager *wm, const char *idname, bool user
     if (keyconf == wm->defaultconf) {
       /* For default configuration, we need to keep keymap
        * modal items and poll functions intact. */
-      for (wmKeyMap *km = keyconf->keymaps.first; km; km = km->next) {
+      LISTBASE_FOREACH (wmKeyMap *, km, &keyconf->keymaps) {
         WM_keymap_clear(km);
       }
     }
@@ -328,7 +328,7 @@ bool WM_keyconfig_remove(wmWindowManager *wm, wmKeyConfig *keyconf)
 
 void WM_keyconfig_clear(wmKeyConfig *keyconf)
 {
-  for (wmKeyMap *km = keyconf->keymaps.first; km; km = km->next) {
+  LISTBASE_FOREACH (wmKeyMap *, km, &keyconf->keymaps) {
     WM_keymap_clear(km);
   }
 
@@ -1329,7 +1329,7 @@ static wmKeyMapItem *wm_keymap_item_find_in_keymap(wmKeyMap *keymap,
                                                    const bool is_strict,
                                                    const struct wmKeyMapItemFind_Params *params)
 {
-  for (wmKeyMapItem *kmi = keymap->items.first; kmi; kmi = kmi->next) {
+  LISTBASE_FOREACH (wmKeyMapItem *, kmi, &keymap->items) {
     /* skip disabled keymap items [T38447] */
     if (kmi->flag & KMI_INACTIVE) {
       continue;
diff --git a/source/blender/windowmanager/intern/wm_keymap_utils.c b/source/blender/windowmanager/intern/wm_keymap_utils.c
index 7d2d39963dd..5ab36b15666 100644
--- a/source/blender/windowmanager/intern/wm_keymap_utils.c
+++ b/source/blender/windowmanager/intern/wm_keymap_utils.c
@@ -486,7 +486,7 @@ static bool wm_keymap_item_uses_modifier(wmKeyMapItem *kmi, const int event_modi
 
 bool WM_keymap_uses_event_modifier(wmKeyMap *keymap, const int event_modifier)
 {
-  for (wmKeyMapItem *kmi = keymap->items.first; kmi; kmi = kmi->next) {
+  LISTBASE_FOREACH (wmKeyMapItem *, kmi, &keymap->items) {
     if ((kmi->flag & KMI_INACTIVE) == 0) {
       if (wm_keymap_item_uses_modifier(kmi, event_modifier)) {
         return true;
diff --git a/source/blender/windowmanager/intern/wm_operators.c b/source/blender/windowmanager/intern/wm_operators.c
index 9a376390096..f8e020b00d0 100644
--- a/source/blender/windowmanager/intern/wm_operators.c
+++ b/source/blender/windowmanager/intern/wm_operators.c
@@ -769,7 +769,7 @@ bool WM_operator_last_properties_init(wmOperator *op)
   bool changed = false;
   if (op->type->last_properties) {
     changed |= operator_last_properties_init_impl(op, op->type->last_properties);
-    for (wmOperator *opm = op->macro.first; opm; opm = opm->next) {
+    LISTBASE_FOREACH (wmOperator *, opm, &op->macro) {
       IDProperty *idp_src = IDP_GetPropertyFromGroup(op->type->last_properties, opm->idname);
       if (idp_src) {
         changed |= operator_last_properties_init_impl(opm, idp_src);
@@ -792,7 +792,7 @@ bool WM_operator_last_properties_store(wmOperator *op)
   }
 
   if (op->macro.first != NULL) {
-    for (wmOperator *opm = op->macro.first; opm; opm = opm->next) {
+    LISTBASE_FOREACH (wmOperator *, opm, &op->macro) {
       if (opm->properties) {
         if (op->type->last_properties == NULL) {
           op->type->last_properties = IDP_New(
@@ -3689,8 +3689,8 @@ static void wm_xr_session_update_screen(Main *bmain, const wmXrData *xr_data)
   const bool session_exists = WM_xr_session_exists(xr_data);
 
   for (bScreen *screen = bmain->screens.first; screen; screen = screen->id.next) {
-    for (ScrArea *area = screen->areabase.first; area; area = area->next) {
-      for (SpaceLink *slink = area->spacedata.first; slink; slink = slink->next) {
+    LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+      LISTBASE_FOREACH (SpaceLink *, slink, &area->spacedata) {
         if (slink->spacetype == SPACE_VIEW3D) {
           View3D *v3d = (View3D *)slink;
 
diff --git a/source/blender/windowmanager/intern/wm_surface.c b/source/blender/windowmanager/intern/wm_surface.c
index 043b584bbbd..e8850693d69 100644
--- a/source/blender/windowmanager/intern/wm_surface.c
+++ b/source/blender/windowmanager/intern/wm_surface.c
@@ -45,7 +45,7 @@ static wmSurface *g_drawable = NULL;
 
 void wm_surfaces_iter(bContext *C, void (*cb)(bContext *C, wmSurface *))
 {
-  for (wmSurface *surf = global_surface_list.first; surf; surf = surf->next) {
+  LISTBASE_FOREACH (wmSurface *, surf, &global_surface_list) {
     cb(C, surf);
   }
 }
diff --git a/source/blender/windowmanager/intern/wm_toolsystem.c b/source/blender/windowmanager/intern/wm_toolsystem.c
index f1928819c26..38fa24f0416 100644
--- a/source/blender/windowmanager/intern/wm_toolsystem.c
+++ b/source/blender/windowmanager/intern/wm_toolsystem.c
@@ -178,7 +178,7 @@ static void toolsystem_ref_link(bContext *C, WorkSpace *workspace, bToolRef *tre
       if (i != -1) {
         const int value = items[i].value;
         wmWindowManager *wm = bmain->wm.first;
-        for (wmWindow *win = wm->windows.first; win; win = win->next) {
+        LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
           if (workspace == WM_window_get_active_workspace(win)) {
             Scene *scene = WM_window_get_active_scene(win);
             ToolSettings *ts = scene->toolsettings;
@@ -197,7 +197,7 @@ static void toolsystem_ref_link(bContext *C, WorkSpace *workspace, bToolRef *tre
       if (i != -1) {
         const int slot_index = items[i].value;
         wmWindowManager *wm = bmain->wm.first;
-        for (wmWindow *win = wm->windows.first; win; win = win->next) {
+        LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
           if (workspace == WM_window_get_active_workspace(win)) {
             Scene *scene = WM_window_get_active_scene(win);
             BKE_paint_ensure_from_paintmode(scene, paint_mode);
@@ -279,7 +279,7 @@ void WM_toolsystem_reinit_all(struct bContext *C, wmWindow *win)
 {
   bScreen *screen = WM_window_get_active_screen(win);
   ViewLayer *view_layer = WM_window_get_active_view_layer(win);
-  for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+  LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
     if (((1 << area->spacetype) & WM_TOOLSYSTEM_SPACE_MASK) == 0) {
       continue;
     }
@@ -372,7 +372,7 @@ void WM_toolsystem_ref_sync_from_context(Main *bmain, WorkSpace *workspace, bToo
     return;
   }
   wmWindowManager *wm = bmain->wm.first;
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     if (workspace != WM_window_get_active_workspace(win)) {
       continue;
     }
@@ -514,13 +514,13 @@ void WM_toolsystem_refresh_active(bContext *C)
 {
   Main *bmain = CTX_data_main(C);
   for (wmWindowManager *wm = bmain->wm.first; wm; wm = wm->id.next) {
-    for (wmWindow *win = wm->windows.first; win; win = win->next) {
+    LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
       WorkSpace *workspace = WM_window_get_active_workspace(win);
       bScreen *screen = WM_window_get_active_screen(win);
       ViewLayer *view_layer = WM_window_get_active_view_layer(win);
       /* Could skip loop for modes that don't depend on space type. */
       int space_type_mask_handled = 0;
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
         /* Don't change the space type of the active tool, only update it's mode. */
         const int space_type_mask = (1 << area->spacetype);
         if ((space_type_mask & WM_TOOLSYSTEM_SPACE_MASK) &&
@@ -547,7 +547,7 @@ void WM_toolsystem_refresh_active(bContext *C)
       /* Refresh to ensure data is initialized.
        * This is needed because undo can load a state which no longer has the underlying DNA data
        * needed for the tool (un-initialized paint-slots for eg), see: T64339. */
-      for (bToolRef *tref = workspace->tools.first; tref; tref = tref->next) {
+      LISTBASE_FOREACH (bToolRef *, tref, &workspace->tools) {
         toolsystem_refresh_ref(C, workspace, tref);
       }
     }
@@ -559,7 +559,7 @@ void WM_toolsystem_refresh_screen_area(WorkSpace *workspace, ViewLayer *view_lay
   area->runtime.tool = NULL;
   area->runtime.is_tool_set = true;
   const int mode = WM_toolsystem_mode_from_spacetype(view_layer, area, area->spacetype);
-  for (bToolRef *tref = workspace->tools.first; tref; tref = tref->next) {
+  LISTBASE_FOREACH (bToolRef *, tref, &workspace->tools) {
     if (tref->space_type == area->spacetype) {
       if (tref->mode == mode) {
         area->runtime.tool = tref;
@@ -573,15 +573,15 @@ void WM_toolsystem_refresh_screen_all(Main *bmain)
 {
   /* Update all ScrArea's tools */
   for (wmWindowManager *wm = bmain->wm.first; wm; wm = wm->id.next) {
-    for (wmWindow *win = wm->windows.first; win; win = win->next) {
+    LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
       WorkSpace *workspace = WM_window_get_active_workspace(win);
       bool space_type_has_tools[SPACE_TYPE_LAST + 1] = {0};
-      for (bToolRef *tref = workspace->tools.first; tref; tref = tref->next) {
+      LISTBASE_FOREACH (bToolRef *, tref, &workspace->tools) {
         space_type_has_tools[tref->space_type] = true;
       }
       bScreen *screen = WM_window_get_active_screen(win);
       ViewLayer *view_layer = WM_window_get_active_view_layer(win);
-      for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
         area->runtime.tool = NULL;
         area->runtime.is_tool_set = true;
         if (space_type_has_tools[area->spacetype]) {
@@ -598,11 +598,11 @@ static void toolsystem_refresh_screen_from_active_tool(Main *bmain,
 {
   /* Update all ScrArea's tools */
   for (wmWindowManager *wm = bmain->wm.first; wm; wm = wm->id.next) {
-    for (wmWindow *win = wm->windows.first; win; win = win->next) {
+    LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
       if (workspace == WM_window_get_active_workspace(win)) {
         bScreen *screen = WM_window_get_active_screen(win);
         ViewLayer *view_layer = WM_window_get_active_view_layer(win);
-        for (ScrArea *area = screen->areabase.first; area; area = area->next) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
           if (area->spacetype == tref->space_type) {
             int mode = WM_toolsystem_mode_from_spacetype(view_layer, area, area->spacetype);
             if (mode == tref->mode) {
@@ -761,7 +761,7 @@ void WM_toolsystem_update_from_context_view3d(bContext *C)
     ScrArea *area_prev = CTX_wm_area(C);
     ARegion *region_prev = CTX_wm_region(C);
 
-    for (wmWindow *win = wm->windows.first; win; win = win->next) {
+    LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
       if (win != win_prev) {
         WorkSpace *workspace_iter = WM_window_get_active_workspace(win);
         if (workspace_iter != workspace) {
diff --git a/source/blender/windowmanager/intern/wm_window.c b/source/blender/windowmanager/intern/wm_window.c
index 694b3176f50..699f618f956 100644
--- a/source/blender/windowmanager/intern/wm_window.c
+++ b/source/blender/windowmanager/intern/wm_window.c
@@ -430,7 +430,7 @@ void wm_window_close(bContext *C, wmWindowManager *wm, wmWindow *win)
 
   /* Close child windows and bring windows back to front that dialogs have pushed behind the main
    * window. */
-  for (wmWindow *iter_win = wm->windows.first; iter_win; iter_win = iter_win->next) {
+  LISTBASE_FOREACH (wmWindow *, iter_win, &wm->windows) {
     if (iter_win->parent == win) {
       wm_window_close(C, wm, iter_win);
     }
@@ -781,7 +781,7 @@ void wm_window_ghostwindows_ensure(wmWindowManager *wm)
 #endif
   }
 
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     wm_window_ghostwindow_ensure(wm, win, false);
   }
 }
@@ -2169,8 +2169,7 @@ void WM_window_screen_rect_calc(const wmWindow *win, rcti *r_rect)
   screen_rect = window_rect;
 
   /* Subtract global areas from screen rectangle. */
-  for (ScrArea *global_area = win->global_areas.areabase.first; global_area;
-       global_area = global_area->next) {
+  LISTBASE_FOREACH (ScrArea *, global_area, &win->global_areas.areabase) {
     int height = ED_area_global_size_y(global_area) - 1;
 
     if (global_area->global->flag & GLOBAL_AREA_IS_HIDDEN) {
@@ -2218,7 +2217,7 @@ bool WM_window_is_maximized(const wmWindow *win)
  */
 void WM_windows_scene_data_sync(const ListBase *win_lb, Scene *scene)
 {
-  for (wmWindow *win = win_lb->first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, win_lb) {
     if (WM_window_get_active_scene(win) == scene) {
       ED_workspace_scene_data_sync(win->workspace_hook, scene);
     }
@@ -2227,7 +2226,7 @@ void WM_windows_scene_data_sync(const ListBase *win_lb, Scene *scene)
 
 Scene *WM_windows_scene_get_from_screen(const wmWindowManager *wm, const bScreen *screen)
 {
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     if (WM_window_get_active_screen(win) == screen) {
       return WM_window_get_active_scene(win);
     }
@@ -2238,7 +2237,7 @@ Scene *WM_windows_scene_get_from_screen(const wmWindowManager *wm, const bScreen
 
 WorkSpace *WM_windows_workspace_get_from_screen(const wmWindowManager *wm, const bScreen *screen)
 {
-  for (wmWindow *win = wm->windows.first; win; win = win->next) {
+  LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
     if (WM_window_get_active_screen(win) == screen) {
       return WM_window_get_active_workspace(win);
     }
@@ -2266,7 +2265,7 @@ void WM_window_set_active_scene(Main *bmain, bContext *C, wmWindow *win, Scene *
     changed = true;
   }
 
-  for (wmWindow *win_child = wm->windows.first; win_child; win_child = win_child->next) {
+  LISTBASE_FOREACH (wmWindow *, win_child, &wm->windows) {
     if (win_child->parent == win_parent && win_child->scene != scene) {
       ED_screen_scene_change(C, win_child, scene);
       changed = true;
@@ -2312,7 +2311,7 @@ void WM_window_set_active_view_layer(wmWindow *win, ViewLayer *view_layer)
   wmWindow *win_parent = (win->parent) ? win->parent : win;
 
   /* Set view layer in parent and child windows. */
-  for (wmWindow *win_iter = wm->windows.first; win_iter; win_iter = win_iter->next) {
+  LISTBASE_FOREACH (wmWindow *, win_iter, &wm->windows) {
     if ((win_iter == win_parent) || (win_iter->parent == win_parent)) {
       STRNCPY(win_iter->view_layer_name, view_layer->name);
       bScreen *screen = BKE_workspace_active_screen_get(win_iter->workspace_hook);
@@ -2344,7 +2343,7 @@ void WM_window_set_active_workspace(bContext *C, wmWindow *win, WorkSpace *works
 
   ED_workspace_change(workspace, C, wm, win);
 
-  for (wmWindow *win_child = wm->windows.first; win_child; win_child = win_child->next) {
+  LISTBASE_FOREACH (wmWindow *, win_child, &wm->windows) {
     if (win_child->parent == win_parent) {
       bScreen *screen = WM_window_get_active_screen(win_child);
       /* Don't change temporary screens, they only serve a single purpose. */
diff --git a/source/blender/windowmanager/message_bus/intern/wm_message_bus.c b/source/blender/windowmanager/message_bus/intern/wm_message_bus.c
index fd5237a70a5..86a106462c3 100644
--- a/source/blender/windowmanager/message_bus/intern/wm_message_bus.c
+++ b/source/blender/windowmanager/message_bus/intern/wm_message_bus.c
@@ -111,7 +111,7 @@ void WM_msgbus_clear_by_owner(struct wmMsgBus *mbus, void *owner)
 void WM_msg_dump(struct wmMsgBus *mbus, const char *info_str)
 {
   printf(">>>> %s\n", info_str);
-  for (wmMsgSubscribeKey *key = mbus->messages.first; key; key = key->next) {
+  LISTBASE_FOREACH (wmMsgSubscribeKey *, key, &mbus->messages) {
     const wmMsg *msg = wm_msg_subscribe_value_msg_cast(key);
     const wmMsgTypeInfo *info = &wm_msg_types[msg->type];
     info->repr(stdout, key);
@@ -131,8 +131,8 @@ void WM_msgbus_handle(struct wmMsgBus *mbus, struct bContext *C)
   }
 
   // uint a = 0, b = 0;
-  for (wmMsgSubscribeKey *key = mbus->messages.first; key; key = key->next) {
-    for (wmMsgSubscribeValueLink *msg_lnk = key->values.first; msg_lnk; msg_lnk = msg_lnk->next) {
+  LISTBASE_FOREACH (wmMsgSubscribeKey *, key, &mbus->messages) {
+    LISTBASE_FOREACH (wmMsgSubscribeValueLink *, msg_lnk, &key->values) {
       if (msg_lnk->params.tag) {
         msg_lnk->params.notify(C, key, &msg_lnk->params);
         msg_lnk->params.tag = false;
@@ -175,7 +175,7 @@ wmMsgSubscribeKey *WM_msg_subscribe_with_key(struct wmMsgBus *mbus,
   }
   else {
     key = *r_key;
-    for (wmMsgSubscribeValueLink *msg_lnk = key->values.first; msg_lnk; msg_lnk = msg_lnk->next) {
+    LISTBASE_FOREACH (wmMsgSubscribeValueLink *, msg_lnk, &key->values) {
       if ((msg_lnk->params.notify == msg_val_params->notify) &&
           (msg_lnk->params.owner == msg_val_params->owner) &&
           (msg_lnk->params.user_data == msg_val_params->user_data)) {
@@ -198,8 +198,7 @@ void WM_msg_publish_with_key(struct wmMsgBus *mbus, wmMsgSubscribeKey *msg_key)
             msg_key,
             BLI_listbase_count(&msg_key->values));
 
-  for (wmMsgSubscribeValueLink *msg_lnk = msg_key->values.first; msg_lnk;
-       msg_lnk = msg_lnk->next) {
+  LISTBASE_FOREACH (wmMsgSubscribeValueLink *, msg_lnk, &msg_key->values) {
     if (false) { /* make an option? */
       msg_lnk->params.notify(NULL, msg_key, &msg_lnk->params);
     }