linux-kernel - Re: [PATCH 0/4] thermal: fix locking regressions in linux-next

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Message-ID: <CAJZ5v0gY-Lhgf_1Kfg6P5O8s+YMkP4TxggxyS=LU9jVgJikAkg@mail.gmail.com>
Date:   Wed, 14 Dec 2022 15:02:12 +0100
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Johan Hovold <johan+linaro@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Amit Kucheria <amitk@...nel.org>,
        Thara Gopinath <thara.gopinath@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        linux-pm@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org
Subject: Re: [PATCH 0/4] thermal: fix locking regressions in linux-next

On Wed, Dec 14, 2022 at 2:18 PM Johan Hovold <johan+linaro@...nel.org> wrote:
>
> This series fixes some of the fallout after the thermal changes that
> just landed in linux-next.
>
> Lockdep reported a lock inversion in one of the Qualcomm drivers and a
> closer review revealed that the changes had also broken the sysfs
> interface for at least three drivers.
>
> Note that a simple revert of the offending patches was not an option as
> some of the infrastructure that the old implementation relied on has
> also been removed.

I've dropped that material from my linux-next branch and Daniel,
please also remove it from your branch that is pulled by linux-next so
that it doesn't show up in there until 6.2-rc1 is out.

It clearly is not ready for merging in its current form.

It is still present in my bleeding-edge branch, though, so please
apply the patches from Johan on top of it and send a new PR to me, so
I can add it back to my linux-next branch once 6.2-rc1 appears.

It would be good to check the code again too for any more similar fallout.

Thanks!