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-rw-r--r--net/tipc/core.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/tipc/core.h b/net/tipc/core.h
index 86f54f3512f1..762aac2572be 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -297,7 +297,10 @@ static inline struct tipc_msg *buf_msg(struct sk_buff *skb)
* buf_acquire - creates a TIPC message buffer
* @size: message size (including TIPC header)
*
- * Returns a new buffer. Space is reserved for a data link header.
+ * Returns a new buffer with data pointers set to the specified size.
+ *
+ * NOTE: Headroom is reserved to allow prepending of a data link header.
+ * There may also be unrequested tailroom present at the buffer's end.
*/
static inline struct sk_buff *buf_acquire(u32 size)