From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 30 Nov 2011 19:00:53 +0000 (+0000)
Subject: ipv4: use a 64bit load/store in output path
X-Git-Tag: v3.3-rc1~182^2~378
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=84f9307c5da84a7c8513e7607dc8427d2cbd63e3;p=pandora-kernel.git

ipv4: use a 64bit load/store in output path

gcc compiler is smart enough to use a single load/store if we
memcpy(dptr, sptr, 8) on x86_64, regardless of
CONFIG_CC_OPTIMIZE_FOR_SIZE

In IP header, daddr immediately follows saddr, this wont change in the
future. We only need to make sure our flowi4 (saddr,daddr) fields wont
break the rule.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

Reading git-diff-tree failed