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authorPaul Bolle <pebolle@tiscali.nl>2013-03-04 02:45:41 +0000
committerPablo Neira Ayuso <pablo@netfilter.org>2013-03-04 14:45:36 +0100
commit9df9e7832391cf699abbf39fc8d95d7e78297462 (patch)
tree110f1cd48ae34fb8c236f15ac58e153a5d05153a
parented018fa4dfc3d26da56b9ee7dc75e9d39a39a02b (diff)
downloadvexpress-lsk-9df9e7832391cf699abbf39fc8d95d7e78297462.tar.gz
netfilter: nfnetlink: silence warning if CONFIG_PROVE_RCU isn't set
Since commit c14b78e7decd0d1d5add6a4604feb8609fe920a9 ("netfilter: nfnetlink: add mutex per subsystem") building nefnetlink.o without CONFIG_PROVE_RCU set, triggers this GCC warning: net/netfilter/nfnetlink.c:65:22: warning: ‘nfnl_get_lock’ defined but not used [-Wunused-function] The cause of that warning is, in short, that rcu_lockdep_assert() compiles away if CONFIG_PROVE_RCU is not set. Silence this warning by open coding nfnl_get_lock() in the sole place it was called, which allows to remove that function. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
-rw-r--r--net/netfilter/nfnetlink.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index d578ec25171..0b1b32cda30 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -62,11 +62,6 @@ void nfnl_unlock(__u8 subsys_id)
}
EXPORT_SYMBOL_GPL(nfnl_unlock);
-static struct mutex *nfnl_get_lock(__u8 subsys_id)
-{
- return &table[subsys_id].mutex;
-}
-
int nfnetlink_subsys_register(const struct nfnetlink_subsystem *n)
{
nfnl_lock(n->subsys_id);
@@ -199,7 +194,7 @@ replay:
rcu_read_unlock();
nfnl_lock(subsys_id);
if (rcu_dereference_protected(table[subsys_id].subsys,
- lockdep_is_held(nfnl_get_lock(subsys_id))) != ss ||
+ lockdep_is_held(&table[subsys_id].mutex)) != ss ||
nfnetlink_find_client(type, ss) != nc)
err = -EAGAIN;
else if (nc->call)