linux-kernel - Re: [PATCH for-stable-5.3 1/2] ACPI/PPTT: Add support for ACPI 6.3 thread flag

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Message-ID: <20191015220439.GQ31224@sasha-vm>
Date:   Tue, 15 Oct 2019 18:04:39 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     John Garry <john.garry@...wei.com>
Cc:     stable@...r.kernel.org, catalin.marinas@....com, will@...nel.org,
        rjw@...ysocki.net, lenb@...nel.org, sudeep.holla@....com,
        rrichter@...vell.com, jeremy.linton@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-acpi@...r.kernel.org, linuxarm@...wei.com,
        gregkh@...uxfoundation.org, guohanjun@...wei.com,
        wanghuiqiang@...wei.com
Subject: Re: [PATCH for-stable-5.3 1/2] ACPI/PPTT: Add support for ACPI 6.3
 thread flag

On Tue, Oct 15, 2019 at 09:16:13AM +0100, John Garry wrote:
>On 15/10/2019 00:29, Sasha Levin wrote:
>>On Mon, Oct 14, 2019 at 07:56:01PM +0800, John Garry wrote:
>>>From: Jeremy Linton <jeremy.linton@....com>
>>>
>>>Commit bbd1b70639f785a970d998f35155c713f975e3ac upstream.
>>>
>>>ACPI 6.3 adds a flag to the CPU node to indicate whether
>>>the given PE is a thread. Add a function to return that
>>>information for a given linux logical CPU.
>>>
>>>Signed-off-by: Jeremy Linton <jeremy.linton@....com>
>>>Reviewed-by: Sudeep Holla <sudeep.holla@....com>
>>>Reviewed-by: Robert Richter <rrichter@...vell.com>
>>>Acked-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>>>Signed-off-by: Will Deacon <will@...nel.org>
>>>Signed-off-by: John Garry <john.garry@...wei.com>
>>
>>How far back should these patches be backported?
>>
>
>Hi Sasha,
>
>This patchset is for 5.3, and I sent a separate patchset for 4.19, 
>since the backport is a little different and required some hand 
>modification -
>
>https://lore.kernel.org/linux-arm-kernel/1571046986-231263-1-git-send-email-john.garry@huawei.com/. 
>4.19 is as far back as we want.
>
>Please note that the patches in this 5.3 series are relevant for 5.2 
>also, but since 5.2 is EOL, I didn't mention it. We did test 5.2, so 
>you can add there also.
>
>Please let me know if any more questions.

I've queued this and the 4.19 patches, thanks!

-- 
Thanks,
Sasha