[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>
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 7a46ea7..6ba67c5 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -549,7 +549,7 @@
if (osk->sk_type != SOCK_SEQPACKET)
goto out;
- if ((sk = x25_alloc_socket(osk->sk_net)) == NULL)
+ if ((sk = x25_alloc_socket(sock_net(osk))) == NULL)
goto out;
x25 = x25_sk(sk);
