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

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Date:   Wed, 14 Dec 2022 14:16:13 +0100
From:   Johan Hovold <johan+linaro@...nel.org>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     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,
        Johan Hovold <johan+linaro@...nel.org>
Subject: [PATCH 0/4] thermal: fix locking regressions in linux-next

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.

Johan


Johan Hovold (4):
  thermal/drivers/qcom: fix set_trip_temp() deadlock
  thermal/drivers/exynos: fix set_trip_temp() deadlock
  thermal/drivers/tegra: fix set_trip_temp() deadlock
  thermal/drivers/qcom: fix lock inversion

 drivers/thermal/qcom/qcom-spmi-temp-alarm.c | 7 ++++++-
 drivers/thermal/samsung/exynos_tmu.c        | 2 +-
 drivers/thermal/tegra/soctherm.c            | 2 +-
 drivers/thermal/thermal_core.c              | 1 +
 include/linux/thermal.h                     | 2 ++
 5 files changed, 11 insertions(+), 3 deletions(-)

-- 
2.37.4