From: Amir Vadai <amir@vadai.me>
Date: Tue, 7 Feb 2017 07:56:06 +0000 (+0200)
Subject: net/skbuff: Introduce skb_mac_offset()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ea6da4fd388a1eeab30d64da3eab3c5338714c74;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

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@vadai.me>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index f1adddc1c5ac..69ccd2636911 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2184,6 +2184,11 @@ 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;