linux-kernel - [PATCH 8/9] thermal/core: Remove thermal_zone_set

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Message-Id: <20221017130910.2307118-9-linux@roeck-us.net>
Date:   Mon, 17 Oct 2022 06:09:09 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     "Rafael J . Wysocki" <rafael@...nel.org>
Cc:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH 8/9] thermal/core: Remove thermal_zone_set_trips()

Since no callers of thermal_zone_set_trips() are left, remove the function.
Document __thermal_zone_set_trips() instead. Explicitly state that the
thermal zone lock must be held when calling the function, and that the
pointer to the thermal zone must be valid.

Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
 drivers/thermal/thermal_core.h    |  1 -
 drivers/thermal/thermal_helpers.c | 34 ++++++++++++++-----------------
 2 files changed, 15 insertions(+), 20 deletions(-)

diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index 7b51b9a22e7e..b834cb273429 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -113,7 +113,6 @@ void __thermal_zone_device_update(struct thermal_zone_device *tz,
 				  enum thermal_notify_event event);
 
 /* Helpers */
-void thermal_zone_set_trips(struct thermal_zone_device *tz);
 void __thermal_zone_set_trips(struct thermal_zone_device *tz);
 int __thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp);
 
diff --git a/drivers/thermal/thermal_helpers.c b/drivers/thermal/thermal_helpers.c
index 0161d5fb1cf2..02b353c8d9aa 100644
--- a/drivers/thermal/thermal_helpers.c
+++ b/drivers/thermal/thermal_helpers.c
@@ -147,6 +147,21 @@ int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp)
 }
 EXPORT_SYMBOL_GPL(thermal_zone_get_temp);
 
+/**
+ * __thermal_zone_set_trips - Computes the next trip points for the driver
+ * @tz: a pointer to a thermal zone device structure
+ *
+ * The function computes the next temperature boundaries by browsing
+ * the trip points. The result is the closer low and high trip points
+ * to the current temperature. These values are passed to the backend
+ * driver to let it set its own notification mechanism (usually an
+ * interrupt).
+ *
+ * This function must be called with tz->lock held. Both tz and tz->ops
+ * must be valid pointers.
+ *
+ * It does not return a value
+ */
 void __thermal_zone_set_trips(struct thermal_zone_device *tz)
 {
 	int low = -INT_MAX;
@@ -193,25 +208,6 @@ void __thermal_zone_set_trips(struct thermal_zone_device *tz)
 		dev_err(&tz->device, "Failed to set trips: %d\n", ret);
 }
 
-/**
- * thermal_zone_set_trips - Computes the next trip points for the driver
- * @tz: a pointer to a thermal zone device structure
- *
- * The function computes the next temperature boundaries by browsing
- * the trip points. The result is the closer low and high trip points
- * to the current temperature. These values are passed to the backend
- * driver to let it set its own notification mechanism (usually an
- * interrupt).
- *
- * It does not return a value
- */
-void thermal_zone_set_trips(struct thermal_zone_device *tz)
-{
-	mutex_lock(&tz->lock);
-	__thermal_zone_set_trips(tz);
-	mutex_unlock(&tz->lock);
-}
-
 static void thermal_cdev_set_cur_state(struct thermal_cooling_device *cdev,
 				       int target)
 {
-- 
2.36.2