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[RFC,1/3] net: Add skb_inner_transport_offset function

Message ID 1444088364-2839440-2-git-send-email-tom@herbertland.com
State RFC, archived
Delegated to: David Miller
Headers show

Commit Message

Tom Herbert Oct. 5, 2015, 11:39 p.m. UTC 
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@herbertland.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 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;