linux-kernel - Re: [PATCH v3 11/12] thermal/of: Use thermal trips stored in the thermal zone

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Date:   Tue, 05 Jul 2022 09:20:38 +0800
From:   Zhang Rui <rui.zhang@...el.com>
To:     Daniel Lezcano <daniel.lezcano@...exp.org>,
        daniel.lezcano@...aro.org, rafael@...nel.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        khilman@...libre.com, abailon@...libre.com,
        Amit Kucheria <amitk@...nel.org>
Subject: Re: [PATCH v3 11/12] thermal/of: Use thermal trips stored in the
 thermal zone

On Mon, 2022-07-04 at 23:24 +0200, Daniel Lezcano wrote:
> On 04/07/2022 16:14, Zhang Rui wrote:
> > On Sun, 2022-07-03 at 20:30 +0200, Daniel Lezcano wrote:
> > > Now that we have the thermal trip stored in the thermal zone in a
> > > generic way, we can rely on them and remove one indirection we
> > > found
> > > in the thermal_of code and do one more step forward the removal
> > > of
> > > the
> > > duplicated structures.
> > > 
> > > Cc: Alexandre Bailon <abailon@...libre.com>
> > > Cc: Kevin Hilman <khilman@...libre.com>
> > > Cc; Eduardo Valentin <eduval@...zon.com>
> > > Signed-off-by: Daniel Lezcano <daniel.lezcano@...exp.org>
> > > ---
> 
> [ ... ]
> 
> > >   EXPORT_SYMBOL_GPL(of_thermal_get_ntrips);
> > >   
> > > @@ -139,9 +134,7 @@ EXPORT_SYMBOL_GPL(of_thermal_get_ntrips);
> > >    */
> > >   bool of_thermal_is_trip_valid(struct thermal_zone_device *tz,
> > > int
> > > trip)
> > >   {
> > > -	struct __thermal_zone *data = tz->devdata;
> > > -
> > > -	if (!data || trip >= data->ntrips || trip < 0)
> > > +	if (trip >= tz->ntrips || trip < 0)
> > >   		return false;
> > >   
> > >   	return true;
> > > @@ -161,12 +154,7 @@ EXPORT_SYMBOL_GPL(of_thermal_is_trip_valid);
> > >   const struct thermal_trip *
> > >   of_thermal_get_trip_points(struct thermal_zone_device *tz)
> > >   {
> > > -	struct __thermal_zone *data = tz->devdata;
> > > -
> > > -	if (!data)
> > > -		return NULL;
> > > -
> > > -	return data->trips;
> > > +	return tz->trips;
> > >   }
> > >   EXPORT_SYMBOL_GPL(of_thermal_get_trip_points);
> > 
> > what is the difference between
> > of_thermal_get_ntrips/of_thermal_get_trip_points and
> > thermal_zone_get_ntrips/thermal_zone_get_trips as introduced in
> > this
> > patch series?
> > 
> > we need to remove the duplications.
> 
> There is no difference between those functions. There are 34 more 
> patches in the pipe to be sent after this series to do more cleanups
> and 
> remove code duplication.
> 
Good to know.

It would be nice to have a cover letter to describe the whole picture,
including this patch series and the following patches in your queue.

thanks,
rui