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author | Andreea-Cristina Bernat <bernat.ada@gmail.com> | 2014-08-17 15:49:41 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2014-08-22 12:23:10 -0700 |
commit | e6b688838e25b22e10dd273b48581cb2f62ec16e (patch) | |
tree | 25e3de0e0085bc1ea45716d8e955c22fc151476b | |
parent | b5091b552a9fd7c45f9f8f4efa23bc78af0553cd (diff) | |
download | op-kernel-dev-e6b688838e25b22e10dd273b48581cb2f62ec16e.zip op-kernel-dev-e6b688838e25b22e10dd273b48581cb2f62ec16e.tar.gz |
net/ipv4/igmp.c: Replace rcu_dereference() with rcu_access_pointer()
The "rcu_dereference()" call is used directly in a condition.
Since its return value is never dereferenced it is recommended to use
"rcu_access_pointer()" instead of "rcu_dereference()".
Therefore, this patch makes the replacement.
The following Coccinelle semantic patch was used:
@@
@@
(
if(
(<+...
- rcu_dereference
+ rcu_access_pointer
(...)
...+>)) {...}
|
while(
(<+...
- rcu_dereference
+ rcu_access_pointer
(...)
...+>)) {...}
)
Signed-off-by: Andreea-Cristina Bernat <bernat.ada@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | net/ipv4/igmp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index f10eab4..890c425 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -2539,7 +2539,7 @@ static int igmp_mc_seq_show(struct seq_file *seq, void *v) querier = "NONE"; #endif - if (rcu_dereference(state->in_dev->mc_list) == im) { + if (rcu_access_pointer(state->in_dev->mc_list) == im) { seq_printf(seq, "%d\t%-10s: %5d %7s\n", state->dev->ifindex, state->dev->name, state->in_dev->mc_count, querier); } |