linux-kernel - Re: [PATCH v2 00/12] thermal: core: Fixes and cleanups, mostly related to thermal zone init and exit

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Message-ID: <e77b2e7d-771e-40dc-8953-8f2cded7cb7f@arm.com>
Date: Mon, 21 Oct 2024 23:45:59 +0100
From: Lukasz Luba <lukasz.luba@....com>
To: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: LKML <linux-kernel@...r.kernel.org>, Linux PM <linux-pm@...r.kernel.org>,
 Daniel Lezcano <daniel.lezcano@...aro.org>, Zhang Rui <rui.zhang@...el.com>,
 Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: Re: [PATCH v2 00/12] thermal: core: Fixes and cleanups, mostly
 related to thermal zone init and exit

Hi Rafael,

On 10/21/24 12:05, Rafael J. Wysocki wrote:
> On Fri, Oct 11, 2024 at 8:50 PM Rafael J. Wysocki <rafael@...nel.org> wrote:
>>
>> On Fri, Oct 4, 2024 at 10:11 PM Rafael J. Wysocki <rjw@...ysocki.net> wrote:
>>>
>>> Hi Everyone,
>>>
>>> After posting the two series of thermal core patches for 6.13:
>>>
>>> https://lore.kernel.org/linux-pm/4920970.GXAFRqVoOG@rjwysocki.net/
>>>
>>> and
>>>
>>> https://lore.kernel.org/linux-pm/6100907.lOV4Wx5bFT@rjwysocki.net/
>>>
>>> before the 6.12 merge window, I have decided to reorder the changes included in
>>> these series, so that fixes and more significant cleanups (for example, changing
>>> they layout of data structures) go first, followed by the changes related to
>>> using guards for locking, and the optimization involving sorted lists becomes
>>> the last piece.
>>>
>>> This series is the first part and the majority of patches in it come from the
>>> second (RFC) series mentioned above.  Of course, they needed to be rebased to
>>> be applied in the new order.  It is on top of 6.12-rc1 with
>>>
>>> https://lore.kernel.org/linux-pm/12549318.O9o76ZdvQC@rjwysocki.net/
>>>
>>> applied and it will be added to my thermal-core-testing branch.  It is in v2
>>> to start with because all of the patches in it have already been posted in
>>> some form.
>>>
>>> The first 10 patches fix some potential issues related to thermal zone
>>> initialization and exit (for example, user space may start to interact with
>>> a thermal zone during its initialization before it's ready and system suspend
>>> taking place at a wrong time may skip a new thermal zone so it is not suspended)
>>> and do some cleanups related to that.  This concludes with the removal of the
>>> need_update field from struct thermal_zone_device.
>>>
>>> The last two patches move lists of thermal instances from thermal zones to
>>> trip point descriptors and clean up some code on top of that.
>>>
>>> Please refer to the individual patch changelogs for details.
>>
>> This material is now present in the thermal-core-testing and
>> thermal-core-experimental branches in linux-pm.git.
> 
> I gather that it is not controversial and it has been around for quite
> a while, and it was discussed during the PM+TC session at the LPC, so
> I've just applied it for 6.13.

I hope it wasn't too late. The patch set looks good and I have
added my reviewed tags.

Regards,
Lukasz