From: Eric Dumazet <dada1@cosmosbay.com>
Date: Sat, 21 Mar 2009 20:42:55 +0000 (-0700)
Subject: net: remove useless prefetch() call
X-Git-Tag: v2.6.30-rc1~662^2~159
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ed734a97c6a81b644bd648afd7a337deb0ccd7e5;p=pandora-kernel.git

net: remove useless prefetch() call

There is no gain using prefetch() in dev_hard_start_xmit(), since
we already had to read ops->ndo_select_queue pointer in dev_pick_tx(),
and both pointers are probably located in the same cache line.

This prefetch call slows down fast path because of a stall in address
computation.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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