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Subject: Re: [PATCH 37/38] irqchip: mips-gic: Use cpumask_first_and() in
 gic_set_affinity()
To:     Paul Burton <paul.burton@imgtec.com>, linux-mips@linux-mips.org,
        Jason Cooper <jason@lakedaemon.net>,
        Marc Zyngier <marc.zyngier@arm.com>,
        Thomas Gleixner <tglx@linutronix.de>
Cc:     Ralf Baechle <ralf@linux-mips.org>
References: <20170813043646.25821-1-paul.burton@imgtec.com>
 <20170813043646.25821-38-paul.burton@imgtec.com>
From:   Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Message-ID: <8af291b4-2cdc-d9aa-88a3-a6c3af856bb4@cogentembedded.com>
Date:   Sun, 13 Aug 2017 12:08:50 +0300
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Hello!

On 8/13/2017 7:36 AM, Paul Burton wrote:

> Currently in gic_set_affinity() we calculate a temporary cpumask holding
> the intersection of the provided cpumask & the CPUs that are online,
> then we call cpumask_first twice on it to find the first such CPU. Since
> we don't need to temporary cpumask for anything else & we only care

    s/to/the/?

> about the first CPU that's both online & in the provided cpumask, we can
> instead use cpumask_first_and to find that CPU & drop the temporary
> mask.
> 
> Signed-off-by: Paul Burton <paul.burton@imgtec.com>
> Cc: Jason Cooper <jason@lakedaemon.net>
> Cc: Marc Zyngier <marc.zyngier@arm.com>
> Cc: Ralf Baechle <ralf@linux-mips.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: linux-mips@linux-mips.org
[...]

MBR, Serge