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

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Message-ID: <2636988.Lt9SDvczpP@rjwysocki.net>
Date: Mon, 29 Jul 2024 18:11:29 +0200
From: "Rafael J. Wysocki" <rjw@...ysocki.net>
To: Linux PM <linux-pm@...r.kernel.org>
Cc: Daniel Lezcano <daniel.lezcano@...aro.org>,
 LKML <linux-kernel@...r.kernel.org>, Lukasz Luba <lukasz.luba@....com>,
 Niklas Söderlund <niklas.soderlund@...natech.se>,
 linux-renesas-soc@...r.kernel.org
Subject: [PATCH v2 7/8] thermal: trip: Get rid of thermal_zone_get_num_trips()

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);