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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-12 22:24:03 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-12 22:24:03 +0300 |
commit | f632a8170a6b667ee4e3f552087588f0fe13c4bb (patch) | |
tree | 9fbdd3505f1471364265727dea1bc9d034cbed8f /kernel/dma | |
parent | ef8f3d48afd6a17a0dae8c277c2f539c2f19fd16 (diff) | |
parent | c33d442328f556460b79aba6058adb37bb555389 (diff) |
Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and debugfs updates from Greg KH:
"Here is the "big" driver core and debugfs changes for 5.3-rc1
It's a lot of different patches, all across the tree due to some api
changes and lots of debugfs cleanups.
Other than the debugfs cleanups, in this set of changes we have:
- bus iteration function cleanups
- scripts/get_abi.pl tool to display and parse Documentation/ABI
entries in a simple way
- cleanups to Documenatation/ABI/ entries to make them parse easier
due to typos and other minor things
- default_attrs use for some ktype users
- driver model documentation file conversions to .rst
- compressed firmware file loading
- deferred probe fixes
All of these have been in linux-next for a while, with a bunch of
merge issues that Stephen has been patient with me for"
* tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits)
debugfs: make error message a bit more verbose
orangefs: fix build warning from debugfs cleanup patch
ubifs: fix build warning after debugfs cleanup patch
driver: core: Allow subsystems to continue deferring probe
drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT
arch_topology: Remove error messages on out-of-memory conditions
lib: notifier-error-inject: no need to check return value of debugfs_create functions
swiotlb: no need to check return value of debugfs_create functions
ceph: no need to check return value of debugfs_create functions
sunrpc: no need to check return value of debugfs_create functions
ubifs: no need to check return value of debugfs_create functions
orangefs: no need to check return value of debugfs_create functions
nfsd: no need to check return value of debugfs_create functions
lib: 842: no need to check return value of debugfs_create functions
debugfs: provide pr_fmt() macro
debugfs: log errors when something goes wrong
drivers: s390/cio: Fix compilation warning about const qualifiers
drivers: Add generic helper to match by of_node
driver_find_device: Unify the match function with class_find_device()
bus_find_device: Unify the match callback with class_find_device
...
Diffstat (limited to 'kernel/dma')
-rw-r--r-- | kernel/dma/swiotlb.c | 25 |
1 files changed, 4 insertions, 21 deletions
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index 13f0cb080a4d..62fa5a82a065 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -696,29 +696,12 @@ bool is_swiotlb_active(void) static int __init swiotlb_create_debugfs(void) { - struct dentry *d_swiotlb_usage; - struct dentry *ent; - - d_swiotlb_usage = debugfs_create_dir("swiotlb", NULL); - - if (!d_swiotlb_usage) - return -ENOMEM; - - ent = debugfs_create_ulong("io_tlb_nslabs", 0400, - d_swiotlb_usage, &io_tlb_nslabs); - if (!ent) - goto fail; - - ent = debugfs_create_ulong("io_tlb_used", 0400, - d_swiotlb_usage, &io_tlb_used); - if (!ent) - goto fail; + struct dentry *root; + root = debugfs_create_dir("swiotlb", NULL); + debugfs_create_ulong("io_tlb_nslabs", 0400, root, &io_tlb_nslabs); + debugfs_create_ulong("io_tlb_used", 0400, root, &io_tlb_used); return 0; - -fail: - debugfs_remove_recursive(d_swiotlb_usage); - return -ENOMEM; } late_initcall(swiotlb_create_debugfs); |