thermal: netlink: Rework notify API for cooling devices

In analogy with some previous thermal netlink API changes, redefine
thermal_notify_cdev_state_update(), thermal_notify_cdev_add() and
thermal_notify_cdev_delete() to take a const cdev pointer as their
first argument and let them extract the requisite information from
there by themselves.

No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>

drivers/thermal/thermal_helpers.c

@@ -156,7 +156,7 @@ static int thermal_cdev_set_cur_state(struct thermal_cooling_device *cdev, int s
 	 */
 	ret = cdev->ops->set_cur_state(cdev, state);
 	if (!ret) {
-		thermal_notify_cdev_state_update(cdev->id, state);
+		thermal_notify_cdev_state_update(cdev, state);
 		thermal_cooling_device_stats_update(cdev, state);
 		thermal_debug_cdev_state_update(cdev, state);
 	}

drivers/thermal/thermal_netlink.c

@@ -364,24 +364,25 @@ int thermal_notify_tz_trip_change(const struct thermal_zone_device *tz,
 	return thermal_genl_send_event(THERMAL_GENL_EVENT_TZ_TRIP_CHANGE, &p);
 }
 
-int thermal_notify_cdev_state_update(int cdev_id, int cdev_state)
+int thermal_notify_cdev_state_update(const struct thermal_cooling_device *cdev,
+				     int state)
 {
-	struct param p = { .cdev_id = cdev_id, .cdev_state = cdev_state };
+	struct param p = { .cdev_id = cdev->id, .cdev_state = state };
 
 	return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_STATE_UPDATE, &p);
 }
 
-int thermal_notify_cdev_add(int cdev_id, const char *name, int cdev_max_state)
+int thermal_notify_cdev_add(const struct thermal_cooling_device *cdev)
 {
-	struct param p = { .cdev_id = cdev_id, .name = name,
-			   .cdev_max_state = cdev_max_state };
+	struct param p = { .cdev_id = cdev->id, .name = cdev->type,
+			   .cdev_max_state = cdev->max_state };
 
 	return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_ADD, &p);
 }
 
-int thermal_notify_cdev_delete(int cdev_id)
+int thermal_notify_cdev_delete(const struct thermal_cooling_device *cdev)
 {
-	struct param p = { .cdev_id = cdev_id };
+	struct param p = { .cdev_id = cdev->id };
 
 	return thermal_genl_send_event(THERMAL_GENL_EVENT_CDEV_DELETE, &p);
 }

drivers/thermal/thermal_netlink.h

@@ -12,6 +12,7 @@ struct thermal_genl_cpu_caps {
 
 struct thermal_zone_device;
 struct thermal_trip;
+struct thermal_cooling_device;
 
 /* Netlink notification function */
 #ifdef CONFIG_THERMAL_NETLINK
@@ -27,9 +28,10 @@ int thermal_notify_tz_trip_up(const struct thermal_zone_device *tz,
 			      const struct thermal_trip *trip);
 int thermal_notify_tz_trip_change(const struct thermal_zone_device *tz,
 				  const struct thermal_trip *trip);
-int thermal_notify_cdev_state_update(int cdev_id, int state);
-int thermal_notify_cdev_add(int cdev_id, const char *name, int max_state);
-int thermal_notify_cdev_delete(int cdev_id);
+int thermal_notify_cdev_state_update(const struct thermal_cooling_device *cdev,
+				     int state);
+int thermal_notify_cdev_add(const struct thermal_cooling_device *cdev);
+int thermal_notify_cdev_delete(const struct thermal_cooling_device *cdev);
 int thermal_notify_tz_gov_change(const struct thermal_zone_device *tz,
 				 const char *name);
 int thermal_genl_sampling_temp(int id, int temp);
@@ -79,18 +81,18 @@ static inline int thermal_notify_tz_trip_change(const struct thermal_zone_device
 	return 0;
 }
 
-static inline int thermal_notify_cdev_state_update(int cdev_id, int state)
+static inline int thermal_notify_cdev_state_update(const struct thermal_cooling_device *cdev,
+						   int state)
 {
 	return 0;
 }
 
-static inline int thermal_notify_cdev_add(int cdev_id, const char *name,
-					  int max_state)
+static inline int thermal_notify_cdev_add(const struct thermal_cooling_device *cdev)
 {
 	return 0;
 }
 
-static inline int thermal_notify_cdev_delete(int cdev_id)
+static inline int thermal_notify_cdev_delete(const struct thermal_cooling_device *cdev)
 {
 	return 0;
 }