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Subject: Re: [PATCH] arm: Fix topology setup in case of CPU hotplug for
 CONFIG_SCHED_MC
To:     Atish Patra <atish.patra@wdc.com>,
        Russell King <linux@armlinux.org.uk>,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Morten Rasmussen <morten.rasmussen@arm.com>,
        Lukasz Luba <lukasz.luba@arm.com>,
        Sudeep Holla <sudeep.holla@arm.com>
References: <20191120104212.14791-1-dietmar.eggemann@arm.com>
 <20191124214753.m6lwcdemnddltctw@core.my.home>
 <50dfafee-55c3-767c-55f4-7d263feafe87@arm.com>
 <20191126214557.53afmorihwqimq2n@core.my.home>
From:   Dietmar Eggemann <dietmar.eggemann@arm.com>
Message-ID: <9119c1db-b98d-67d4-ce4c-d9a9b298937a@arm.com>
Date:   Wed, 27 Nov 2019 15:31:38 +0100
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On 26/11/2019 22:45, Ondřej Jirman wrote:
> On Tue, Nov 26, 2019 at 11:42:02AM +0100, Dietmar Eggemann wrote:
>> On 24/11/2019 22:47, Ondřej Jirman wrote:
>>> Hello,
>>>
>>> On Wed, Nov 20, 2019 at 10:42:12AM +0000, Dietmar Eggemann wrote:

[...]

>> Thanks for testing! Which Cpufreq driver is your system using?
> 
> Hello,
> 
> it's using cpufreq-dt.

Thanks for the info! It's dt-based so this one is safe in regards to
retrieving the correct topology core mask during CPU hp stress (i.e.
from multiple CPUs at the same time).

[...]