From dff42553801647ddfcb2fa2f1584638a33f7421d Mon Sep 17 00:00:00 2001 From: t_jeang Date: Tue, 6 Jan 2009 12:05:21 +0000 Subject: [PATCH] commit ea2ae17d6443abddc79480dc9f7af8feacabddc4 Author: Arnaldo Carvalho de Melo Date: Wed Apr 25 17:55:53 2007 -0700 [SK_BUFF]: Introduce skb_transport_offset() For the quite common 'skb->h.raw - skb->data' sequence. Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller Edited: Ian Campbell -- just definition. --- include/linux/skbuff.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 46ad73c4..feb82ade 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -963,6 +963,11 @@ static inline void skb_reserve(struct sk_buff *skb, int len) skb->tail += len; } +static inline int skb_transport_offset(const struct sk_buff *skb) +{ + return skb->h.raw - skb->data; +} + /* * CPUs often take a performance hit when accessing unaligned memory * locations. The actual performance hit varies, it can be small if the -- 2.39.5