linux-kernel - Re: [PATCH] drivers: CCI: Correct use of ! and &

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Date:	Tue, 29 Jul 2014 09:41:36 -0700
From:	Olof Johansson <olof@...om.net>
To:	Punit Agrawal <punit.agrawal@....com>
Cc:	"arm@...nel.org" <arm@...nel.org>, Arnd Bergmann <arnd@...db.de>,
	Himangi Saraogi <himangi774@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"julia.lawall@...6.fr" <julia.lawall@...6.fr>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Will Deacon <will.deacon@....com>
Subject: Re: [PATCH] drivers: CCI: Correct use of ! and &

On Tue, Jul 29, 2014 at 4:34 AM, Punit Agrawal <punit.agrawal@....com> wrote:
> Hi Arnd,
>
> Will Deacon <will.deacon@....com> writes:
>
>> On Wed, Jul 23, 2014 at 04:01:56PM +0100, Punit Agrawal wrote:
>>> > diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
>>> > index 5a86da9..7af78df 100644
>>> > --- a/drivers/bus/arm-cci.c
>>> > +++ b/drivers/bus/arm-cci.c
>>> > @@ -397,7 +397,8 @@ static irqreturn_t pmu_handle_irq(int irq_num, void *dev)
>>> >            hw_counter = &event->hw;
>>> >
>>> >            /* Did this counter overflow? */
>>> > -          if (!pmu_read_register(idx, CCI_PMU_OVRFLW) & CCI_PMU_OVRFLW_FLAG)
>>> > +          if (!(pmu_read_register(idx, CCI_PMU_OVRFLW) &
>>> > +                CCI_PMU_OVRFLW_FLAG))
>>> >                    continue;
>>>
>>>
>>> Going back to the manual, this fix looks correct.
>>>
>>> Acked-by: Punit Agrawal <punit.agrawal@....com>
>>>
>>> Will, would this go via your tree?
>>
>> Given that you're happy with it, I don't mind which tree it goes in.
>> Probably deserves a CC stable on it too.
>
> The CCI PMU patches went via arm-soc. Are you happy to pick this fix with
> the Ack and a Cc to stable.

Yeah, we've been merging most of the CCI patches.

Please resend the patch to arm@...nel.org if you want us to apply it.


Thanks,

-Olof
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