linux-kernel - Re: [PATCH] MIPS: SMP-CPS: Add support for irq migration when CPU offline

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Message-ID: <20201204120837.GD10011@alpha.franken.de>
Date:   Fri, 4 Dec 2020 13:08:37 +0100
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     Wei Li <liwei391@...wei.com>
Cc:     Paul Burton <paulburton@...nel.org>, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org, yangyingliang@...wei.com,
        guohanjun@...wei.com
Subject: Re: [PATCH] MIPS: SMP-CPS: Add support for irq migration when CPU
 offline

On Thu, Dec 03, 2020 at 02:54:43PM +0800, Wei Li wrote:
> Currently we won't migrate irqs when offline CPUs, which has been
> implemented on most architectures. That will lead to some devices work
> incorrectly if the bound cores are offline.
> 
> While that can be easily supported by enabling GENERIC_IRQ_MIGRATION.
> But i don't pretty known the reason it was not supported on all MIPS
> platforms.
> 
> This patch add the support for irq migration on MIPS CPS platform, and
> it's tested on the interAptiv processor.
> 
> Signed-off-by: Wei Li <liwei391@...wei.com>
> ---
>  arch/mips/Kconfig          | 1 +
>  arch/mips/kernel/smp-cps.c | 2 ++
>  2 files changed, 3 insertions(+)

applied to mips-next.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]