udebug: add inline helper function to test if a buffer is allocated

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 4 insertions, 0 deletions

diff --git a/udebug.h b/udebug.h
index 75c2e3f..3b6c851 100644
--- a/udebug.h
+++ b/udebug.h
@@ -166,6 +166,10 @@ int udebug_buf_add(struct udebug *ctx, struct udebug_buf *buf,
 		   const struct udebug_buf_meta *meta);
 uint64_t udebug_buf_flags(struct udebug_buf *buf);
 void udebug_buf_free(struct udebug_buf *buf);
+static inline bool udebug_buf_valid(struct udebug_buf *buf)
+{
+	return buf->hdr;
+}
 
 struct udebug_remote_buf *udebug_remote_buf_get(struct udebug *ctx, uint32_t id);
 int udebug_remote_buf_map(struct udebug *ctx, struct udebug_remote_buf *rb, uint32_t id);