From a57d246b8543731ba3217c06d804f83c79f5583d 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: Ben Hutchings --- drivers/net/macvlan.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index b74cdf6a0d7d..fed39de76ee9 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -455,6 +455,7 @@ static int macvlan_init(struct net_device *dev) (lowerdev->state & MACVLAN_STATE_MASK); dev->features = lowerdev->features & MACVLAN_FEATURES; dev->features |= NETIF_F_LLTX; + 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; -- 2.39.2