linux-kernel - Re: [PATCH V2] drivers: CCI: fix used_mask init in validate

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Message-ID: <55420A18.7080203@arm.com>
Date:	Thu, 30 Apr 2015 11:55:20 +0100
From:	"Suzuki K. Poulose" <Suzuki.Poulose@....com>
To:	"msalter@...hat.com" <msalter@...hat.com>
CC:	Will Deacon <will.deacon@....com>,
	Mark Rutland <Mark.Rutland@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Punit Agrawal <Punit.Agrawal@....com>,
	"arm@...nel.org" <arm@...nel.org>
Subject: Re: [PATCH V2] drivers: CCI: fix used_mask init in validate_group()

On 13/04/15 13:41, Will Deacon wrote:
> On Thu, Apr 09, 2015 at 04:36:29PM +0100, Mark Rutland wrote:
>> On Thu, Apr 09, 2015 at 03:57:05PM +0100, Mark Salter wrote:
>>> Currently in validate_group(), there is a static initializer
>>> for fake_pmu.used_mask which is based on CPU_BITS_NONE but
>>> the used_mask array size is based on CCI_PMU_MAX_HW_EVENTS.
>>> CCI_PMU_MAX_HW_EVENTS is not based on NR_CPUS, so CPU_BITS_NONE
>>> is not correct and will cause a build failure if NR_CPUS
>>> is set high enough to make CPU_BITS_NONE larger than used_mask.
>>>
>>> Signed-off-by: Mark Salter <msalter@...hat.com>
>>
>> Reviewed-by: Mark Rutland <mark.rutland@....com>
>>
>> Arnd, Olof, are you happy to take this via arm-soc?
>>
>> My (broken) patch went via Will's tree because of a perf dependency, but
>> other CCI patches have gone via you guys.
>
> Yeah, arm-soc is the best place for this. You should resend to
> arm@...nel.org as a new patch with the relevant acks.
Mark

Could you please send this to arm-soc as suggested by Will, with the 
relevant acks/reviews  ?

Thanks
Suzuki

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