linux-kernel - Re: [PATCH v2 7/8] thermal: trip: Get rid of thermal_zone_get_num

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Message-ID: <4ecc1d54-a17e-4cda-a3a8-6d12afcd1823@arm.com>
Date: Fri, 2 Aug 2024 10:55:06 +0100
From: Lukasz Luba <lukasz.luba@....com>
To: "Rafael J. Wysocki" <rjw@...ysocki.net>,
 Linux PM <linux-pm@...r.kernel.org>
Cc: Daniel Lezcano <daniel.lezcano@...aro.org>,
 LKML <linux-kernel@...r.kernel.org>,
 Niklas Söderlund <niklas.soderlund@...natech.se>,
 linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH v2 7/8] thermal: trip: Get rid of
 thermal_zone_get_num_trips()



On 7/29/24 17:11, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> The only existing caller of thermal_zone_get_num_trips(), which is
> rcar_gen3_thermal_probe(), uses this function to put the number of
> trip points into a kernel log message, but this information is also
> available from the thermal sysfs interface.
> 
> For this reason, remove the thermal_zone_get_num_trips() call from
> rcar_gen3_thermal_probe() and drop the former altogether.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> ---
> 
> A new version, based on the discussion following the v1:
> 
> https://lore.kernel.org/linux-pm/20240617183949.GO382677@ragnatech.se/
> 
> The Renesas driver change does not depend on the previous patches
> in the series.
> 
> ---
>   drivers/thermal/renesas/rcar_gen3_thermal.c |    6 +-----
>   drivers/thermal/thermal_trip.c              |    6 ------
>   include/linux/thermal.h                     |    1 -
>   3 files changed, 1 insertion(+), 12 deletions(-)
> 
> Index: linux-pm/drivers/thermal/renesas/rcar_gen3_thermal.c
> ===================================================================
> --- linux-pm.orig/drivers/thermal/renesas/rcar_gen3_thermal.c
> +++ linux-pm/drivers/thermal/renesas/rcar_gen3_thermal.c
> @@ -563,11 +563,7 @@ static int rcar_gen3_thermal_probe(struc
>   		if (ret)
>   			goto error_unregister;
>   
> -		ret = thermal_zone_get_num_trips(tsc->zone);
> -		if (ret < 0)
> -			goto error_unregister;
> -
> -		dev_info(dev, "Sensor %u: Loaded %d trip points\n", i, ret);
> +		dev_info(dev, "Sensor %u: Loaded\n", i);
>   	}
>   
>   	if (!priv->num_tscs) {
> Index: linux-pm/drivers/thermal/thermal_trip.c
> ===================================================================
> --- linux-pm.orig/drivers/thermal/thermal_trip.c
> +++ linux-pm/drivers/thermal/thermal_trip.c
> @@ -55,12 +55,6 @@ int thermal_zone_for_each_trip(struct th
>   }
>   EXPORT_SYMBOL_GPL(thermal_zone_for_each_trip);
>   
> -int thermal_zone_get_num_trips(struct thermal_zone_device *tz)
> -{
> -	return tz->num_trips;
> -}
> -EXPORT_SYMBOL_GPL(thermal_zone_get_num_trips);
> -
>   /**
>    * thermal_zone_set_trips - Computes the next trip points for the driver
>    * @tz: a pointer to a thermal zone device structure
> Index: linux-pm/include/linux/thermal.h
> ===================================================================
> --- linux-pm.orig/include/linux/thermal.h
> +++ linux-pm/include/linux/thermal.h
> @@ -210,7 +210,6 @@ int for_each_thermal_trip(struct thermal
>   int thermal_zone_for_each_trip(struct thermal_zone_device *tz,
>   			       int (*cb)(struct thermal_trip *, void *),
>   			       void *data);
> -int thermal_zone_get_num_trips(struct thermal_zone_device *tz);
>   void thermal_zone_set_trip_temp(struct thermal_zone_device *tz,
>   				struct thermal_trip *trip, int temp);
>   
> 
> 
> 

Reviewed-by: Lukasz Luba <lukasz.luba@....com>