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

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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>

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Simon Horman 2013-05-28 20:34:25 +00:00 • committed by David S. Miller

parent be8b678c6c

commit ced14f6804

2 changed files with 6 additions and 4 deletions

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6

include/net/inet_ecn.h

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