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Message-ID: <da144002-f1bf-4463-a626-00a97615990c@linaro.org> Date: Wed, 21 Aug 2024 11:46:37 +0200 From: Daniel Lezcano <daniel.lezcano@...aro.org> To: "Rafael J. Wysocki" <rjw@...ysocki.net>, Linux PM <linux-pm@...r.kernel.org> Cc: LKML <linux-kernel@...r.kernel.org>, Lukasz Luba <lukasz.luba@....com>, Zhang Rui <rui.zhang@...el.com> Subject: Re: [PATCH v3 05/14] thermal: core: Move thermal zone locking out of bind/unbind functions On 19/08/2024 17:58, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki <rafael.j.wysocki@...el.com> > > Since thermal_bind_cdev_to_trip() and thermal_unbind_cdev_from_trip() > acquire the thermal zone lock, the locking rules for their callers get > complicated. In particular, the thermal zone lock cannot be acquired > in any code path leading to one of these functions even though it might > be useful to do so. > > To address this, remove the thermal zone locking from both these > functions, add lockdep assertions for the thermal zone lock to both > of them and make their callers acquire the thermal zone lock instead. > > No intentional functional impact. > > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com> > --- Reviewed-by: Daniel Lezcano <daniel.lezcano@...aro.org> -- <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | <http://twitter.com/#!/linaroorg> Twitter | <http://www.linaro.org/linaro-blog/> Blog
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