[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/core/pktgen.c b/net/core/pktgen.c
index 20e63b302ba6..a803b442234c 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -1874,7 +1874,7 @@ static int pktgen_device_event(struct notifier_block *unused,
 {
         struct net_device *dev = ptr;
 
-        if (dev->nd_net != &init_net)
+        if (dev_net(dev) != &init_net)
                 return NOTIFY_DONE;
 
         /* It is OK that we do not hold the group lock right now,