From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 4 May 2012 14:26:56 +0000 (+0000)
Subject: skb: Add inline helper for getting the skb end offset from head
X-Git-Tag: v3.2.60~68
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=93a1554e0ca3cbabfb90d8d6edeb1680597283a3;p=pandora-kernel.git

skb: Add inline helper for getting the skb end offset from head

[ Upstream commit ec47ea82477404631d49b8e568c71826c9b663ac ]

With the recent changes for how we compute the skb truesize it occurs to me
we are probably going to have a lot of calls to skb_end_pointer -
skb->head.  Instead of running all over the place doing that it would make
more sense to just make it a separate inline skb_end_offset(skb) that way
we can return the correct value without having gcc having to do all the
optimization to cancel out skb->head - skb->head.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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