[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/drivers/net/macvlan.c b/drivers/net/macvlan.c
index f651a816b280..2056cfc624dc 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -402,7 +402,7 @@ static int macvlan_newlink(struct net_device *dev,
         if (!tb[IFLA_LINK])
                 return -EINVAL;
 
-        lowerdev = __dev_get_by_index(dev->nd_net, nla_get_u32(tb[IFLA_LINK]));
+        lowerdev = __dev_get_by_index(dev_net(dev), nla_get_u32(tb[IFLA_LINK]));
         if (lowerdev == NULL)
                 return -ENODEV;