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Date: Tue, 05 May 2009 10:11:27 +0100
From: David Howells <dhowells@...hat.com>
To: Hannes Hering <hannes.hering@...ux.vnet.ibm.com>
Cc: dhowells@...hat.com, David Miller <davem@...emloft.net>,
themann@...ibm.com, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, raisch@...ibm.com,
ossrosch@...ux.vnet.ibm.com, linuxppc-dev@...abs.org,
ossthema@...ibm.com, osstklei@...ibm.com
Subject: Re: [PATCH 2.6.30-rc5] ehea: fix invalid pointer access
Hannes Hering <hannes.hering@...ux.vnet.ibm.com> wrote:
> pref = skb_array[x];
> - prefetchw(pref);
> - prefetchw(pref + EHEA_CACHE_LINE);
> + if (pref) {
> + prefetchw(pref);
> + prefetchw(pref + EHEA_CACHE_LINE);
Ummm... Is prefetch() or prefetchw() faulting?
David
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