[PATCH net-next] netfilter: core: make local function __nf_unregister_net_hook static

[Wei Yongjun]

Fixes the following sparse warning:

net/netfilter/core.c:380:6: warning:
 symbol '__nf_unregister_net_hook' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongj...@huawei.com>
---
 net/netfilter/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 997dd38..3f8e2d0 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -377,8 +377,8 @@ static void nf_remove_net_hook(struct nf_hook_entries *old,
        }
 }
 
-void __nf_unregister_net_hook(struct net *net, int pf,
-                             const struct nf_hook_ops *reg)
+static void __nf_unregister_net_hook(struct net *net, int pf,
+                                    const struct nf_hook_ops *reg)
 {
        struct nf_hook_entries __rcu **pp;
        struct nf_hook_entries *p;