From 6d7a7d3623a1732deff22faeb4a70322794d70f5 Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Thu, 31 Jul 2014 10:30:25 -0400 Subject: [PATCH] macvlan: Initialize vlan_features to turn on offload support. [ Upstream commit 081e83a78db9b0ae1f5eabc2dedecc865f509b98 ] Macvlan devices do not initialize vlan_features. As a result, any vlan devices configured on top of macvlans perform very poorly. Initialize vlan_features based on the vlan features of the lower-level device. Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/macvlan.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index 5adecc5..7f1abb7 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -548,6 +548,7 @@ static int macvlan_init(struct net_device *dev) (lowerdev->state & MACVLAN_STATE_MASK); dev->features = lowerdev->features & MACVLAN_FEATURES; dev->features |= ALWAYS_ON_FEATURES; + dev->vlan_features = lowerdev->vlan_features & MACVLAN_FEATURES; dev->gso_max_size = lowerdev->gso_max_size; dev->iflink = lowerdev->ifindex; dev->hard_header_len = lowerdev->hard_header_len; -- 2.7.4