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vlan: Update skb->mac_header in __vlan_put_tag(). 

After moving mac addresses in __vlan_put_tag() skb->mac_header needs
to be updated.

Reported-by: Karl Hiramoto <karl@hiramoto.org>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jarek Poplawski 2009-02-18 23:31:11 -08:00 committed by David S. Miller
parent ce03aaddd4
commit e4dd61882e
1 changed files with 1 additions and 0 deletions
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1
include/linux/if_vlan.h
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@ -210,6 +210,7 @@ static inline struct sk_buff *__vlan_put_tag(struct sk_buff *skb, u16 vlan_tci)
/* Move the mac addresses to the beginning of the new header. */
memmove(skb->data, skb->data + VLAN_HLEN, 2 * VLAN_ETH_ALEN);
skb->mac_header -= VLAN_HLEN;
/* first, the ethernet type */
veth->h_vlan_proto = htons(ETH_P_8021Q);