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vlan: Set correct source MAC address with TX VLAN offload enabled 

[ Upstream commit dd38743b4cc2f86be250eaf156cf113ba3dd531a ]

With TX VLAN offload enabled the source MAC address for frames sent using the
VLAN interface is currently set to the address of the real interface. This is
wrong since the VLAN interface may be configured with a different address.

The bug was introduced in commit 2205369a314e12fcec4781cc73ac9c08fc2b47de
("vlan: Fix header ops passthru when doing TX VLAN offload.").

This patch sets the source address before calling the create function of the
real interface.

Signed-off-by: Peter Boström <peter.bostrom@netrounds.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Boström 2014-03-10 16:17:15 +01:00 committed by Greg Kroah-Hartman
parent 8f41e6a828
commit 471e50f307
1 changed files with 3 additions and 0 deletions
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3
net/8021q/vlan_dev.c
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@ -557,6 +557,9 @@ static int vlan_passthru_hard_header(struct sk_buff *skb, struct net_device *dev
struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
struct net_device *real_dev = vlan->real_dev;
if (saddr == NULL)
saddr = dev->dev_addr;
return dev_hard_header(skb, real_dev, type, daddr, saddr, len);
}