[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/decnet/dn_route.c b/net/decnet/dn_route.c
index 9dc0abb..0a46b6c 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -580,7 +580,7 @@
struct dn_dev *dn = (struct dn_dev *)dev->dn_ptr;
unsigned char padlen = 0;
- if (dev->nd_net != &init_net)
+ if (dev_net(dev) != &init_net)
goto dump_it;
if (dn == NULL)