Re: [RFC PATCH v3 1/3] genirq: introduce CONFIG_GENERIC_IRQ_MIGRATION

From: Thomas Gleixner
Date: Wed Sep 16 2015 - 04:14:02 EST


On Wed, 16 Sep 2015, Yang Yingliang wrote:
> diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
> index 78c0621..4133070 100644
> --- a/arch/arc/Kconfig
> +++ b/arch/arc/Kconfig
> @@ -20,6 +20,7 @@ config ARC
> # for now, we don't need GENERIC_IRQ_PROBE, CONFIG_GENERIC_IRQ_CHIP
> select GENERIC_IRQ_SHOW
> select GENERIC_PENDING_IRQ if SMP
> + select GENERIC_IRQ_MIGRATION if SMP

What's the point of this?

> --- a/kernel/irq/Kconfig
> +++ b/kernel/irq/Kconfig
> @@ -30,6 +30,10 @@ config GENERIC_IRQ_LEGACY_ALLOC_HWIRQ
> config GENERIC_PENDING_IRQ
> bool

+ select GENERIC_IRQ_MIGRATION

Will do it automatically without touching any of the arch Kconfig
files.

Thanks,

tglx
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