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net/vlan: introduce __vlan_hwaccel_copy_tag() helper

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Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michał Mirosław
2018-11-07 18:07:02 +01:00
committed by David S. Miller
parent c8accd5a0a
commit e0a6b80973
1 changed files with 13 additions and 0 deletions
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13
include/linux/if_vlan.h
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@@ -472,6 +472,19 @@ static inline void __vlan_hwaccel_clear_tag(struct sk_buff *skb)
skb->vlan_tci = 0; skb->vlan_tci = 0;
} }
/**
* __vlan_hwaccel_copy_tag - copy hardware accelerated VLAN info from another skb
* @dst: skbuff to copy to
* @src: skbuff to copy from
*
* Copies VLAN information from @src to @dst (for branchless code)
*/
static inline void __vlan_hwaccel_copy_tag(struct sk_buff *dst, const struct sk_buff *src)
{
dst->vlan_proto = src->vlan_proto;
dst->vlan_tci = src->vlan_tci;
}
/* /*
* __vlan_hwaccel_push_inside - pushes vlan tag to the payload * __vlan_hwaccel_push_inside - pushes vlan tag to the payload
* @skb: skbuff to tag * @skb: skbuff to tag