netdev - [PATCH net-next V3 1/3] net/skbuff: Introduce skb_mac

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Date:   Tue,  7 Feb 2017 09:56:06 +0200
From:   Amir Vadai <amir@...ai.me>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, Or Gerlitz <ogerlitz@...lanox.com>,
        Hadar Har-Zion <hadarh@...lanox.com>,
        Amir Vadai <amir@...ai.me>
Subject: [PATCH net-next V3 1/3] net/skbuff: Introduce skb_mac_offset()

Introduce skb_mac_offset() that could be used to get mac header offset.

Signed-off-by: Amir Vadai <amir@...ai.me>
Reviewed-by: Or Gerlitz <ogerlitz@...lanox.com>
---
 include/linux/skbuff.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index c6a78e1892b6..a1b73b794a38 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2182,6 +2182,11 @@ static inline unsigned char *skb_mac_header(const struct sk_buff *skb)
 	return skb->head + skb->mac_header;
 }
 
+static inline int skb_mac_offset(const struct sk_buff *skb)
+{
+	return skb_mac_header(skb) - skb->data;
+}
+
 static inline int skb_mac_header_was_set(const struct sk_buff *skb)
 {
 	return skb->mac_header != (typeof(skb->mac_header))~0U;
-- 
2.11.0