net: add netif_is_bridge_master helper

Add this helper so code can easily figure out if netdev is a bridge.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2015-08-27 09:31:19 +02:00 • committed by David S. Miller
commit 0894ae3f0a