[NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS.
Introduce per-net_device inlines: dev_net(), dev_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/ipv6/proc.c b/net/ipv6/proc.c
index 8a5be29..364dc33 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -214,7 +214,7 @@
if (!idev || !idev->dev)
return -EINVAL;
- if (idev->dev->nd_net != &init_net)
+ if (dev_net(idev->dev) != &init_net)
return 0;
if (!proc_net_devsnmp6)