[NETLINK]: use container_of instead

This could make future redesign of struct netlink_sock easier.

Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 5681ce3..a78d962 100644 (file)
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -88,7 +88,7 @@ struct netlink_sock {
 
 static inline struct netlink_sock *nlk_sk(struct sock *sk)
 {
-       return (struct netlink_sock *)sk;
+       return container_of(sk, struct netlink_sock, sk);
 }
 
 struct nl_pid_hash {