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[net-next,V3,1/3] net/skbuff: Introduce skb_mac_offset()

Message ID 20170207075608.8430-2-amir@vadai.me
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Amir Vadai Feb. 7, 2017, 7:56 a.m. UTC 
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>
---
 include/linux/skbuff.h | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

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;