[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, 2 insertions, 2 deletions

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 8e588f20c60c..15d73e47cc2c 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -2079,7 +2079,7 @@ static int stale_bundle(struct dst_entry *dst)
 void xfrm_dst_ifdown(struct dst_entry *dst, struct net_device *dev)
 {
         while ((dst = dst->child) && dst->xfrm && dst->dev == dev) {
-                dst->dev = dev->nd_net->loopback_dev;
+                dst->dev = dev_net(dev)->loopback_dev;
                 dev_hold(dst->dev);
                 dev_put(dev);
         }
@@ -2350,7 +2350,7 @@ static int xfrm_dev_event(struct notifier_block *this, unsigned long event, void
 {
         struct net_device *dev = ptr;
 
-        if (dev->nd_net != &init_net)
+        if (dev_net(dev) != &init_net)
                 return NOTIFY_DONE;
 
         switch (event) {