linux-kernel - [PATCH v2 01/17] thermal: core: Fold two functions into their respective callers

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Message-ID: <2400231.NG923GbCHz@rjwysocki.net>
Date: Mon, 12 Aug 2024 15:51:38 +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>, Zhang Rui <rui.zhang@...el.com>
Subject:
 [PATCH v2 01/17] thermal: core: Fold two functions into their respective
 callers

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

Fold bind_cdev() into __thermal_cooling_device_register() and bind_tz()
into thermal_zone_device_register_with_trips() to reduce code bloat and
make it somewhat easier to follow the code flow.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---

v1 -> v2: No changes

---
 drivers/thermal/thermal_core.c |   55 ++++++++++++++---------------------------
 1 file changed, 19 insertions(+), 36 deletions(-)

Index: linux-pm/drivers/thermal/thermal_core.c
===================================================================
--- linux-pm.orig/drivers/thermal/thermal_core.c
+++ linux-pm/drivers/thermal/thermal_core.c
@@ -991,20 +991,6 @@ void print_bind_err_msg(struct thermal_z
 		tz->type, cdev->type, ret);
 }
 
-static void bind_cdev(struct thermal_cooling_device *cdev)
-{
-	int ret;
-	struct thermal_zone_device *pos = NULL;
-
-	list_for_each_entry(pos, &thermal_tz_list, node) {
-		if (pos->ops.bind) {
-			ret = pos->ops.bind(pos, cdev);
-			if (ret)
-				print_bind_err_msg(pos, cdev, ret);
-		}
-	}
-}
-
 /**
  * __thermal_cooling_device_register() - register a new thermal cooling device
  * @np:		a pointer to a device tree node.
@@ -1100,7 +1086,13 @@ __thermal_cooling_device_register(struct
 	list_add(&cdev->node, &thermal_cdev_list);
 
 	/* Update binding information for 'this' new cdev */
-	bind_cdev(cdev);
+	list_for_each_entry(pos, &thermal_tz_list, node) {
+		if (pos->ops.bind) {
+			ret = pos->ops.bind(pos, cdev);
+			if (ret)
+				print_bind_err_msg(pos, cdev, ret);
+		}
+	}
 
 	list_for_each_entry(pos, &thermal_tz_list, node)
 		if (atomic_cmpxchg(&pos->need_update, 1, 0))
@@ -1338,25 +1330,6 @@ void thermal_cooling_device_unregister(s
 }
 EXPORT_SYMBOL_GPL(thermal_cooling_device_unregister);
 
-static void bind_tz(struct thermal_zone_device *tz)
-{
-	int ret;
-	struct thermal_cooling_device *pos = NULL;
-
-	if (!tz->ops.bind)
-		return;
-
-	mutex_lock(&thermal_list_lock);
-
-	list_for_each_entry(pos, &thermal_cdev_list, node) {
-		ret = tz->ops.bind(tz, pos);
-		if (ret)
-			print_bind_err_msg(tz, pos, ret);
-	}
-
-	mutex_unlock(&thermal_list_lock);
-}
-
 static void thermal_set_delay_jiffies(unsigned long *delay_jiffies, int delay_ms)
 {
 	*delay_jiffies = msecs_to_jiffies(delay_ms);
@@ -1554,13 +1527,23 @@ thermal_zone_device_register_with_trips(
 	}
 
 	mutex_lock(&thermal_list_lock);
+
 	mutex_lock(&tz->lock);
 	list_add_tail(&tz->node, &thermal_tz_list);
 	mutex_unlock(&tz->lock);
-	mutex_unlock(&thermal_list_lock);
 
 	/* Bind cooling devices for this zone */
-	bind_tz(tz);
+	if (tz->ops.bind) {
+		struct thermal_cooling_device *cdev;
+
+		list_for_each_entry(cdev, &thermal_cdev_list, node) {
+			result = tz->ops.bind(tz, cdev);
+			if (result)
+				print_bind_err_msg(tz, cdev, result);
+		}
+	}
+
+	mutex_unlock(&thermal_list_lock);
 
 	thermal_zone_device_init(tz);
 	/* Update the new thermal zone and mark it as already updated. */