[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/drivers/net/loopback.c b/drivers/net/loopback.c
index f2a6e71..41b774b 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -258,7 +258,7 @@
if (!dev)
goto out;
- dev->nd_net = net;
+ dev_net_set(dev, net);
err = register_netdev(dev);
if (err)
goto out_free_netdev;