[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/ip6_output.c b/net/ipv6/ip6_output.c
index d34aa61353bb..556300f0eba5 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -402,7 +402,7 @@ int ip6_forward(struct sk_buff *skb)
         struct dst_entry *dst = skb->dst;
         struct ipv6hdr *hdr = ipv6_hdr(skb);
         struct inet6_skb_parm *opt = IP6CB(skb);
-        struct net *net = dst->dev->nd_net;
+        struct net *net = dev_net(dst->dev);
 
         if (ipv6_devconf.forwarding == 0)
                 goto error;