linux-kernel - [PATCH v1 10/16] thermal: gov_step_wise: Clean up thermal_zone_trip

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Message-ID: <1883063.atdPhlSkOF@kreacher>
Date: Wed, 10 Apr 2024 18:44:14 +0200
From: "Rafael J. Wysocki" <rjw@...ysocki.net>
To: Linux PM <linux-pm@...r.kernel.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
 Daniel Lezcano <daniel.lezcano@...aro.org>,
 Lukasz Luba <lukasz.luba@....com>,
 Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject:
 [PATCH v1 10/16] thermal: gov_step_wise: Clean up thermal_zone_trip_update()

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Do some assorted cleanups in thermal_zone_trip_update():

 * Compute the trend value upfront.
 * Move old_target definition to the block where it is used.
 * Adjust white space around diagnositc messages and locking.
 * Use suitable field formatting in a message to avoid an explicit
   cast to int.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/thermal/gov_step_wise.c |   13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

Index: linux-pm/drivers/thermal/gov_step_wise.c
===================================================================
--- linux-pm.orig/drivers/thermal/gov_step_wise.c
+++ linux-pm/drivers/thermal/gov_step_wise.c
@@ -65,13 +65,10 @@ static void thermal_zone_trip_update(str
 				     const struct thermal_trip *trip,
 				     int trip_threshold)
 {
+	enum thermal_trend trend = get_tz_trend(tz, trip);
 	int trip_id = thermal_zone_trip_id(tz, trip);
-	enum thermal_trend trend;
 	struct thermal_instance *instance;
 	bool throttle = false;
-	int old_target;
-
-	trend = get_tz_trend(tz, trip);

 	if (tz->temperature >= trip_threshold) {
 		throttle = true;
@@ -82,13 +79,16 @@ static void thermal_zone_trip_update(str
 		trip_id, trip->type, trip_threshold, trend, throttle);

 	list_for_each_entry(instance, &tz->thermal_instances, tz_node) {
+		int old_target;
+
 		if (instance->trip != trip)
 			continue;

 		old_target = instance->target;
 		instance->target = get_target_state(instance, trend, throttle);
-		dev_dbg(&instance->cdev->device, "old_target=%d, target=%d\n",
-					old_target, (int)instance->target);
+
+		dev_dbg(&instance->cdev->device, "old_target=%d, target=%ld\n",
+			old_target, instance->target);

 		if (instance->initialized && old_target == instance->target)
 			continue;
@@ -104,6 +104,7 @@ static void thermal_zone_trip_update(str
 		}

 		instance->initialized = true;
+
 		mutex_lock(&instance->cdev->lock);
 		instance->cdev->updated = false; /* cdev needs update */
 		mutex_unlock(&instance->cdev->lock);