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net: Add skb_inner_transport_offset function

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Same thing as skb_transport_offset but returns the offset of the inner
transport header (when skb->encpasulation is set).

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2015-12-14 11:19:40 -08:00 committed by David S. Miller
parent b4bc88a868
commit 55dc5a9f2f
1 changed files with 5 additions and 0 deletions
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5
include/linux/skbuff.h
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@ -1939,6 +1939,11 @@ static inline unsigned char *skb_inner_transport_header(const struct sk_buff
return skb->head + skb->inner_transport_header;
}
static inline int skb_inner_transport_offset(const struct sk_buff *skb)
{
return skb_inner_transport_header(skb) - skb->data;
}
static inline void skb_reset_inner_transport_header(struct sk_buff *skb)
{
skb->inner_transport_header = skb->data - skb->head;