netdev - Re: [PATCH] net: remove useless prefetch() call

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Message-Id: <20090320.013611.67498837.davem@davemloft.net>
Date:	Fri, 20 Mar 2009 01:36:11 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	dada1@...mosbay.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] net: remove useless prefetch() call

From: Eric Dumazet <dada1@...mosbay.com>
Date: Fri, 20 Mar 2009 09:32:53 +0100

> There is no point to use prefetch() call here.
> start_xmit() is a function like others...
> 
> Signed-off-by: Eric Dumazet <dada1@...mosbay.com>

Yes but the operation pointer might not be in the CPU
cache at this time?

And if it's not we can get it into the cpu whilst we do
other processing, such as the dev_queue_xmit_nit() stuff.
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