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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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