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

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Date:	Thu, 1 Oct 2015 16:24:24 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	mark.rutland@....com, jiang.liu@...ux.intel.com,
	linux@....linux.org.uk, mingo@...nel.org, marc.zyngier@....com,
	will.deacon@....com, hanjun.guo@...aro.org,
	linux-kernel@...r.kernel.org, hpa@...or.com,
	linux-arm-kernel@...ts.infradead.org, yangyingliang@...wei.com
cc:	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:irq/core] genirq: Introduce generic irq migration for cpu
 hotunplug

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@...wei.com>
> AuthorDate: Thu, 24 Sep 2015 17:32:13 +0800
> Committer:  Thomas Gleixner <tglx@...utronix.de>
> 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@...wei.com>
> Acked-by: Russell King - ARM Linux <linux@....linux.org.uk>
> Cc: Jiang Liu <jiang.liu@...ux.intel.com>
> Cc: Marc Zyngier <marc.zyngier@....com>
> Cc: Mark Rutland <mark.rutland@....com>
> Cc: Will Deacon <will.deacon@....com>
> Cc: Hanjun Guo <hanjun.guo@...aro.org>
> Cc: <linux-arm-kernel@...ts.infradead.org>
> Link: http://lkml.kernel.org/r/1443087135-17044-2-git-send-email-yangyingliang@huawei.com
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>

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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