netdev - [PATCH RFC 1/3] net: Add skb_inner_transport

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Message-ID: <1444088364-2839440-2-git-send-email-tom@herbertland.com>
Date:	Mon, 5 Oct 2015 16:39:22 -0700
From:	Tom Herbert <tom@...bertland.com>
To:	<davem@...emloft.net>, <netdev@...r.kernel.org>
CC:	<kernel-team@...com>, <dwmw2@...radead.org>,
	<ogerlitz@...lanox.com>
Subject: [PATCH RFC 1/3] net: Add skb_inner_transport_offset function

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@...bertland.com>
---
 include/linux/skbuff.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 4398411..ad1a24c 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1933,6 +1933,11 @@ 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;
-- 
2.4.6

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