linux-kernel - Re: [RFC PATCH v2 05/10] genirq: export irq_get_percpu_devid

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Date:   Mon, 16 Jan 2017 10:06:37 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Will Deacon <will.deacon@....com>
cc:     linux-arm-kernel@...ts.infradead.org, marc.zyngier@....com,
        mark.rutland@....com, kim.phillips@....com, alex.bennee@...aro.org,
        christoffer.dall@...aro.org, peterz@...radead.org,
        alexander.shishkin@...ux.intel.com, robh@...nel.org,
        suzuki.poulose@....com, pawel.moll@....com,
        mathieu.poirier@...aro.org, mingo@...hat.com,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v2 05/10] genirq: export irq_get_percpu_devid_partition
 to modules

On Fri, 13 Jan 2017, Will Deacon wrote:

> Any modular driver using cluster-affine PPIs needs to be able to call
> irq_get_percpu_devid_partition so that it can enable the IRQ on the
> correct subset of CPUs.
> 
> This patch exports the symbol so that it can be called from within a
> module.
> 
> Cc: Marc Zyngier <marc.zyngier@....com>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Signed-off-by: Will Deacon <will.deacon@....com>
> ---
>  kernel/irq/irqdesc.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
> index 00bb0aeea1d0..1e6ae73eae59 100644
> --- a/kernel/irq/irqdesc.c
> +++ b/kernel/irq/irqdesc.c
> @@ -856,6 +856,7 @@ int irq_get_percpu_devid_partition(unsigned int irq, struct cpumask *affinity)
>  
>  	return 0;
>  }
> +EXPORT_SYMBOL_GPL(irq_get_percpu_devid_partition);

Acked-by: Thomas Gleixner <tglx@...utronix.de>