[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/bluetooth/sco.c b/net/bluetooth/sco.c
index b91d3c8..2a5953b 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -803,7 +803,7 @@
bh_lock_sock(parent);
- sk = sco_sock_alloc(parent->sk_net, NULL, BTPROTO_SCO, GFP_ATOMIC);
+ sk = sco_sock_alloc(sock_net(parent), NULL, BTPROTO_SCO, GFP_ATOMIC);
if (!sk) {
bh_unlock_sock(parent);
goto done;
