[NET]: Fix sparse warnings

Of this type, mostly:

CHECK   net/ipv6/netfilter.c
net/ipv6/netfilter.c:96:12: warning: symbol 'ipv6_netfilter_init' was not declared. Should it be static?
net/ipv6/netfilter.c:101:6: warning: symbol 'ipv6_netfilter_fini' was not declared. Should it be static?

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/security.h b/include/linux/security.h
index b42095a..7aab6ab 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -2727,7 +2727,8 @@
 	return security_ops->socket_getpeersec(sock, optval, optlen, len);
 }
 
-static inline int security_sk_alloc(struct sock *sk, int family, int priority)
+static inline int security_sk_alloc(struct sock *sk, int family,
+				    unsigned int __nocast priority)
 {
 	return security_ops->sk_alloc_security(sk, family, priority);
 }
@@ -2844,7 +2845,8 @@
 	return -ENOPROTOOPT;
 }
 
-static inline int security_sk_alloc(struct sock *sk, int family, int priority)
+static inline int security_sk_alloc(struct sock *sk, int family,
+				    unsigned int __nocast priority)
 {
 	return 0;
 }