Re: [tip:irq/core] genirq: Introduce generic irq migration for cpu hotunplug

From: Thomas Gleixner
Date: Thu Oct 01 2015 - 10:25:56 EST


On Thu, 1 Oct 2015, tip-bot for Yang Yingliang wrote:

> Commit-ID: f1e0bb0ad473a32d1b7e6d285ae9f7e47710bb5e
> Gitweb: http://git.kernel.org/tip/f1e0bb0ad473a32d1b7e6d285ae9f7e47710bb5e
> Author: Yang Yingliang <yangyingliang@xxxxxxxxxx>
> AuthorDate: Thu, 24 Sep 2015 17:32:13 +0800
> Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> CommitDate: Thu, 1 Oct 2015 14:51:15 +0200
>
> genirq: Introduce generic irq migration for cpu hotunplug
>
> ARM and ARM64 have almost identical code for migrating interrupts on
> cpu hotunplug. Provide a generic version which can be used by both.
>
> The new code addresses a shortcoming in the ARM[64] variants which
> fails to update the affinity change in some cases. The solution for
> this is to use the core function irq_do_set_affinity() instead of open
> coding it.
>
> [ tglx: Added copyright notice and license boilerplate. Rewrote
> subject and changelog. ]
>
> Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
> Acked-by: Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx>
> Cc: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
> Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
> Cc: Mark Rutland <mark.rutland@xxxxxxx>
> Cc: Will Deacon <will.deacon@xxxxxxx>
> Cc: Hanjun Guo <hanjun.guo@xxxxxxxxxx>
> Cc: <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>
> Link: http://lkml.kernel.org/r/1443087135-17044-2-git-send-email-yangyingliang@xxxxxxxxxx
> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

Russell, Will,

I applied that to a seperate branch

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/for-arm

You can pull that into arm[64] so you can apply the architecture
specific part.

Thanks,

tglx
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