From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sun, 8 Feb 2009 18:00:37 +0000 (+0000)
Subject: gro: Optimise Ethernet header comparison
X-Git-Tag: v2.6.30-rc1~662^2~763
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aa4b9f533ed5a22952e038b9fac2447ccc682124;p=pandora-kernel.git

gro: Optimise Ethernet header comparison

This patch optimises the Ethernet header comparison to use 2-byte
and 4-byte xors instead of memcmp.  In order to facilitate this,
the actual comparison is now carried out by the callers of the
shared dev_gro_receive function.

This has a significant impact when receiving 1500B packets through
10GbE.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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