linux-kernel - Re: [PATCH v2 1/5] thermal: core: Add helpers to browse the cdev, tz and governor list

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Date:   Wed, 1 Jul 2020 14:56:02 +0530
From:   Amit Kucheria <amit.kucheria@...aro.org>
To:     Zhang Rui <rui.zhang@...el.com>
Cc:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Ram Chandrasekar <rkumbako@...eaurora.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/5] thermal: core: Add helpers to browse the cdev, tz
 and governor list

On Wed, Jul 1, 2020 at 1:27 PM Zhang Rui <rui.zhang@...el.com> wrote:
>
> On Wed, 2020-07-01 at 09:35 +0200, Daniel Lezcano wrote:
> > On 30/06/2020 17:09, Zhang Rui wrote:
> > > Hi, Daniel,
> > >
> > > seems that you forgot to cc linux-pm mailing list.
> > >
> > > On Tue, 2020-06-30 at 17:16 +0530, Amit Kucheria wrote:
> > > > On Thu, Jun 25, 2020 at 8:15 PM Daniel Lezcano
> > > > <daniel.lezcano@...aro.org> wrote:
> > > > >
> > > > > The cdev, tz and governor list, as well as their respective
> > > > > locks
> > > > > are
> > > > > statically defined in the thermal_core.c file.
> > > > >
> > > > > In order to give a sane access to these list, like browsing all
> > > > > the
> > > > > thermal zones or all the cooling devices, let's define a set of
> > > > > helpers where we pass a callback as a parameter to be called
> > > > > for
> > > > > each
> > > > > thermal entity.
> > > > >
> > > > > We keep the self-encapsulation and ensure the locks are
> > > > > correctly
> > > > > taken when looking at the list.
> > > > >
> > > > > Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
> > > > > ---
> > > > >  drivers/thermal/thermal_core.c | 51
> > > > > ++++++++++++++++++++++++++++++++++
> > > >
> > > > Is the idea to not use thermal_helpers.c from now on? It fits
> > > > perfectly with a patch I have to merge all its contents to
> > > > thermal_core.c :-)
> > >
> > > I agree these changes should be in thermal_helper.c
> >
> > Oh, actually I remind put those functions in the thermal_core.c file
> > because they need the locks which are statically defined in there.
> >
> > If the functions are moved to thermal_helper.c that will imply to
> > export
> > the locks outside of the file, thus breaking the self-encapsulation.
> >
> > Do you want to move them out?
>
> Then no. I don't have any objection of removing thermal_helper.c, so
> you can just leave these functions in thermal_core.c

In that case, Daniel, please find attached a patch to move the
contents of thermal_helpers into thermal_core.c

Feel free to include it at the top of this series and modify as you see fit.

Regards,
Amit

View attachment "0001-thermal-core-Merge-thermal_helpers.c-into-thermal_co.patch" of type "text/x-patch" (14115 bytes)