[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/reassembly.c b/net/ipv6/reassembly.c
index f936d045a39d..4e1447634f36 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -600,7 +600,7 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
                 return 1;
         }
 
-        net = skb->dev->nd_net;
+        net = dev_net(skb->dev);
         if (atomic_read(&net->ipv6.frags.mem) > net->ipv6.frags.high_thresh)
                 ip6_evictor(net, ip6_dst_idev(skb->dst));