linux-kernel - [PATCH 1/2] thermal: core: Move thermal_cdev

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Message-Id: <20200409151515.6607-1-daniel.lezcano@linaro.org>
Date:   Thu,  9 Apr 2020 17:15:14 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     daniel.lezcano@...aro.org, rui.zhang@...el.com
Cc:     linux-kernel@...r.kernel.org, amit.kucheria@...durent.com,
        linux-pm@...r.kernel.org (open list:THERMAL)
Subject: [PATCH 1/2] thermal: core: Move thermal_cdev_update next to updated=false

The call to the thermal_cdev_update() function is done after browsing
the thermal instances which sets the updated flag by browsing them
again.

Instead of doing this, let's move the call right after setting the
cooling device 'updated' flag as it is done in the other governors.

Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
---
 drivers/thermal/gov_bang_bang.c | 10 +---------
 drivers/thermal/step_wise.c     | 10 +---------
 2 files changed, 2 insertions(+), 18 deletions(-)

diff --git a/drivers/thermal/gov_bang_bang.c b/drivers/thermal/gov_bang_bang.c
index 991a1c54296d..c292a69845bb 100644
--- a/drivers/thermal/gov_bang_bang.c
+++ b/drivers/thermal/gov_bang_bang.c
@@ -64,6 +64,7 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
 		mutex_lock(&instance->cdev->lock);
 		instance->cdev->updated = false; /* cdev needs update */
 		mutex_unlock(&instance->cdev->lock);
+		thermal_cdev_update(instance->cdev);
 	}
 
 	mutex_unlock(&tz->lock);
@@ -98,17 +99,8 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
  */
 static int bang_bang_control(struct thermal_zone_device *tz, int trip)
 {
-	struct thermal_instance *instance;
-
 	thermal_zone_trip_update(tz, trip);
 
-	mutex_lock(&tz->lock);
-
-	list_for_each_entry(instance, &tz->thermal_instances, tz_node)
-		thermal_cdev_update(instance->cdev);
-
-	mutex_unlock(&tz->lock);
-
 	return 0;
 }
 
diff --git a/drivers/thermal/step_wise.c b/drivers/thermal/step_wise.c
index 2ae7198d3067..298eedac0293 100644
--- a/drivers/thermal/step_wise.c
+++ b/drivers/thermal/step_wise.c
@@ -167,6 +167,7 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
 		mutex_lock(&instance->cdev->lock);
 		instance->cdev->updated = false; /* cdev needs update */
 		mutex_unlock(&instance->cdev->lock);
+		thermal_cdev_update(instance->cdev);
 	}
 
 	mutex_unlock(&tz->lock);
@@ -185,20 +186,11 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
  */
 static int step_wise_throttle(struct thermal_zone_device *tz, int trip)
 {
-	struct thermal_instance *instance;
-
 	thermal_zone_trip_update(tz, trip);
 
 	if (tz->forced_passive)
 		thermal_zone_trip_update(tz, THERMAL_TRIPS_NONE);
 
-	mutex_lock(&tz->lock);
-
-	list_for_each_entry(instance, &tz->thermal_instances, tz_node)
-		thermal_cdev_update(instance->cdev);
-
-	mutex_unlock(&tz->lock);
-
 	return 0;
 }
 
-- 
2.17.1