commit 29a3cad5c6ae9e7fbf1509d01d39c3c3c38f11f9
author Simon Horman <horms@verge.net.au> Tue May 28 20:34:26 2013 +0000
committer David S. Miller <davem@davemloft.net> Tue May 28 23:49:07 2013 -0700
tree fd6436d8a820801843ca257807c8af0f36425291
parent ced14f6804a979d1972415bc23f2f8ddb18595dd

ipv6: Correct comparisons and calculations using skb->tail and skb-transport_header

This corrects an regression introduced by "net: Use 16bits for *_headers
fields of struct skbuff" when NET_SKBUFF_DATA_USES_OFFSET is not set. In
that case skb->tail will be a pointer whereas skb->transport_header
will be an offset from head. This is corrected by using wrappers that
ensure that comparisons and calculations are always made using pointers.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>