[ 42/48] macvlan: Set IFF_UNICAST_FLT flag to prevent unnecessary promisc mode.

Greg Kroah-Hartman
2013-03-18T21:09:48Z

From: Vlad Yasevich <vyasevic@redhat.com>

[ Upstream commit 87ab7f6f2874f1115817e394a7ed2dea1c72549e ]

Macvlan already supports hw address filters. Set the IFF_UNICAST_FLT
so that it doesn't needlesly enter PROMISC mode when macvlans are
stacked.

Signed-of-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/macvlan.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -584,6 +584,7 @@ void macvlan_common_setup(struct net_dev
ether_setup(dev);

dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING);
+ dev->priv_flags |= IFF_UNICAST_FLT;
dev->netdev_ops = &macvlan_netdev_ops;
dev->destructor = free_netdev;
dev->header_ops = &macvlan_hard_header_ops,