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Subject[PATCH 29/30] net: Add missing annotation for netlink_walk_start()
Date
Sparse reports a warning at netlink_walk_start()

warning: context imbalance in netlink_walk_start()
- wrong count at exit

The root cause is the missing annotation at netlink_walk_start()
A close look at rhashtable_walk_start_check()
shows that an __acquires(RCU) is needed here.

Add the missing __acquires(RCU) annotation

Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
---
net/netlink/af_netlink.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 4e31721e7293..a3fddc845538 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -2539,7 +2539,7 @@ struct nl_seq_iter {
int link;
};

-static void netlink_walk_start(struct nl_seq_iter *iter)
+static void netlink_walk_start(struct nl_seq_iter *iter) __acquires(RCU)
{
rhashtable_walk_enter(&nl_table[iter->link].hash, &iter->hti);
rhashtable_walk_start(&iter->hti);
--
2.24.1
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