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From: sboyd@codeaurora.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] irqchip: gic: Don't complain in gic_get_cpumask() if UP system
Date: Wed, 17 Jul 2013 15:36:40 -0700	[thread overview]
Message-ID: <51E71C78.6080604@codeaurora.org> (raw)
In-Reply-To: <alpine.LFD.2.03.1307171830170.14924@syhkavp.arg>

On 07/17/13 15:34, Nicolas Pitre wrote:
> On Wed, 17 Jul 2013, Stephen Boyd wrote:
>
>> On 07/12/13 05:10, Stephen Boyd wrote:
>>> On 07/12, Javi Merino wrote:
>>>> I agree, we should drop the check.  It's annoying in uniprocessors and
>>>> unlikely to be found in the real world unless your gic entry in the dt
>>>> is wrong.
> And that's a likely outcome in the real world.
>
>>> Ok. How about this?
>> Any comments?
> What about this instead:

Unfortunately arm64 doesn't have SMP_ON_UP. It sounds like you preferred
the first patch using num_possible_cpus()

>
> diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
> index 19ceaa60e0..86d21bc6cb 100644
> --- a/drivers/irqchip/irq-gic.c
> +++ b/drivers/irqchip/irq-gic.c
> @@ -368,7 +368,7 @@ static u8 gic_get_cpumask(struct gic_chip_data *gic)
>  			break;
>  	}
>  
> -	if (!mask)
> +	if (is_smp() && !mask)
>  		pr_crit("GIC CPU mask not found - kernel will fail to boot.\n");
>  
>  	return mask;
>
>
> Nicolas


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  reply	other threads:[~2013-07-17 22:36 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-05 23:39 [PATCH] irqchip: gic: Don't complain in gic_get_cpumask() if UP system Stephen Boyd
2013-07-12 11:13 ` Javi Merino
2013-07-12 12:10   ` Stephen Boyd
2013-07-17 21:53     ` Stephen Boyd
2013-07-17 22:34       ` Nicolas Pitre
2013-07-17 22:36         ` Stephen Boyd [this message]
2013-07-17 22:53           ` Nicolas Pitre
2013-07-17 23:06             ` Stephen Boyd
2013-08-22 18:43               ` Stephen Boyd
2013-08-22 18:59                 ` Nicolas Pitre
2013-08-23  4:35                   ` Stephen Boyd
2013-08-23  4:51                     ` Nicolas Pitre
2013-08-23  9:15                       ` Russell King - ARM Linux
2013-07-20  7:27 ` Bedia, Vaibhav
2013-07-23 17:01   ` Stephen Boyd
  -- strict thread matches above, loose matches on Subject: below --
2015-01-31  0:43 Stephen Boyd
2015-01-31  7:09 ` Felipe Balbi
2015-02-12  3:51   ` Nishanth Menon
2015-02-01 21:25 ` Stefan Agner

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