[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS.

Introduce per-sock inlines: sock_net(), sock_net_set()
and per-inet_timewait_sock inlines: twsk_net(), twsk_net_set().
Without CONFIG_NET_NS, no namespace other than &init_net exists.
Let's explicitly define them to help compiler optimizations.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 0a46b6c10e51..2f665a516476 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1512,7 +1512,7 @@ rtattr_failure:
  */
 static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void *arg)
 {
-        struct net *net = in_skb->sk->sk_net;
+        struct net *net = sock_net(in_skb->sk);
         struct rtattr **rta = arg;
         struct rtmsg *rtm = NLMSG_DATA(nlh);
         struct dn_route *rt = NULL;
@@ -1601,7 +1601,7 @@ out_free:
  */
 int dn_cache_dump(struct sk_buff *skb, struct netlink_callback *cb)
 {
-        struct net *net = skb->sk->sk_net;
+        struct net *net = sock_net(skb->sk);
         struct dn_route *rt;
         int h, s_h;
         int idx, s_idx;