[PATCH 05/30] sctp: Add missing annotation for sctp_transport_walk_start()

From: Jules Irenge
Date: Sun Feb 23 2020 - 18:20:07 EST


Sparse reports a warning at sctp_transport_walk_start()

warning: context imbalance in sctp_transport_walk_start
- wrong count at exit

The root cause is the missing annotation at sctp_transport_walk_start()
Add the missing __acquires(RCU) annotation

Signed-off-by: Jules Irenge <jbi.octave@xxxxxxxxx>
---
net/sctp/socket.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 1b56fc440606..05be67bb0474 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -5333,7 +5333,7 @@ int sctp_get_sctp_info(struct sock *sk, struct sctp_association *asoc,
EXPORT_SYMBOL_GPL(sctp_get_sctp_info);

/* use callback to avoid exporting the core structure */
-void sctp_transport_walk_start(struct rhashtable_iter *iter)
+void sctp_transport_walk_start(struct rhashtable_iter *iter) __acquires(RCU)
{
rhltable_walk_enter(&sctp_transport_hashtable, iter);

--
2.24.1