[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>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index 8a5be290c710..364dc332532c 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -214,7 +214,7 @@ int snmp6_register_dev(struct inet6_dev *idev)
         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)