linux-kernel - Re: [PATCH 1/1] x86: Add check for node passed to node_to

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Date:	Mon, 07 Jul 2008 10:23:13 -0700
From:	Mike Travis <travis@....com>
To:	Vegard Nossum <vegard.nossum@...il.com>
CC:	Ingo Molnar <mingo@...e.hu>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	mm-commits@...r.kernel.org, Yinghai Lu <yhlu.kernel@...il.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] x86: Add check for node passed to node_to_cpumask
 V3

Vegard Nossum wrote:
> On Thu, Jul 3, 2008 at 10:44 AM, Ingo Molnar <mingo@...e.hu> wrote:
>> * Mike Travis <travis@....com> wrote:
>>
>>> Subject: [PATCH 1/1] x86: Add check for node passed to node_to_cpumask V3
>>>
>>>   * When CONFIG_DEBUG_PER_CPU_MAPS is set, the node passed to
>>>     node_to_cpumask and node_to_cpumask_ptr should be validated.
>>>     If invalid, then a dump_stack is performed and a zero cpumask
>>>     is returned.
>>>
>>> Based on "Fri Jun 27 10:06:06 PDT 2008" tip/master...  ;-)
>>>
>>> Signed-off-by: Mike Travis <travis@....com>
>>> ---
>>> V2: Slightly different version to remove a compiler warning.
>>> V3: Redone to reflect moving setup.c -> setup_percpu.c
>> applied to tip/x86/unify-setup - thanks Mike.
>>
>> Vegard, can i add your Acked-by too?
> 
> To be honest, I'd prefer that the function returns a const pointer.
> Mike and I have both reviewed all callers independently and concluded
> that there is no problem in doing this, and that, in fact, this is the
> correct way to deal with it.
> 
> So if Mike submits a V4 with this const return type, or another patch
> on top of this one, I'll ack it :-)
> 
> 
> Vegard
> 

Sure, I can do this...

Thanks,
Mike
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