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Date: Thu, 6 Dec 2012 15:54:56 -0500 From: Andrew Gallatin <gallatin@...i.com> To: davem@...emloft.net Cc: netdev@...r.kernel.org, Andrew Gallatin <gallatin@...i.com> Subject: [PATCH net-next 1/1] vlan: restore offload use on vlan transmit This patch copies the vlan device's dev->features to its dev->vlan_features, which allows packets to arrive at vlan_dev_hard_start_xmit() with their offloads intact. When a packet destined for a vlan interface is transmitted, it passes through dev_hard_start_xmit() (and netif_skb_features()) twice. First on its way to vlan_dev_hard_start_xmit(), and then again on its way to the backing device's xmit handler. If the vlan device does not setup its dev->vlan_features, then netif_skb_features() will strip the features on the first trip through it (on the way to vlan_dev_hard_start_xmit()). Signed-off-by: Andrew Gallatin <gallatin@...i.com> --- net/8021q/vlan_dev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 4a6d31a..9d4b3c9 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -559,6 +559,7 @@ static int vlan_dev_init(struct net_device *dev) dev->features |= real_dev->vlan_features | NETIF_F_LLTX; dev->gso_max_size = real_dev->gso_max_size; + dev->vlan_features = dev->features; /* ipv6 shared card related stuff */ dev->dev_id = real_dev->dev_id; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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