summaryrefslogtreecommitdiffstats
path: root/drivers/net/loopback.c
diff options
context:
space:
mode:
authorPavel Emelyanov <xemul@parallels.com>2012-08-08 23:53:36 +0200
committerDavid S. Miller <davem@davemloft.net>2012-08-10 01:18:07 +0200
commit1fb9489bf190ce2b3fc03891f3de4b2d30600e28 (patch)
treeda4e17036949e72ae0b1f0fc3b6b31557de18353 /drivers/net/loopback.c
parentnet: Make ifindex generation per-net namespace (diff)
downloadlinux-1fb9489bf190ce2b3fc03891f3de4b2d30600e28.tar.xz
linux-1fb9489bf190ce2b3fc03891f3de4b2d30600e28.zip
net: Loopback ifindex is constant now
As pointed out, there are places, that access net->loopback_dev->ifindex and after ifindex generation is made per-net this value becomes constant equals 1. So go ahead and introduce the LOOPBACK_IFINDEX constant and use it where appropriate. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/loopback.c')
-rw-r--r--drivers/net/loopback.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index e2a06fd996d5..4a075babe193 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -197,6 +197,7 @@ static __net_init int loopback_net_init(struct net *net)
if (err)
goto out_free_netdev;
+ BUG_ON(dev->ifindex != LOOPBACK_IFINDEX);
net->loopback_dev = dev;
return 0;