Commit 9a99a996 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

thermal: core: Introduce thermal_zone_device_exec() 



Introduce a new helper function, thermal_zone_device_exec(), that can
be used by drivers to run a given callback routine under the zone lock.

Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent bc840ea5

drivers/thermal/thermal_core.c

+19 −0
Original line number Diff line number Diff line
@@ -497,6 +497,25 @@ void thermal_zone_device_update(struct thermal_zone_device *tz, 
}

EXPORT_SYMBOL_GPL(thermal_zone_device_update);



/**

 * thermal_zone_device_exec - Run a callback under the zone lock.

 * @tz: Thermal zone.

 * @cb: Callback to run.

 * @data: Data to pass to the callback.

 */

void thermal_zone_device_exec(struct thermal_zone_device *tz,

			      void (*cb)(struct thermal_zone_device *,

					 unsigned long),

			      unsigned long data)

{

	mutex_lock(&tz->lock);



	cb(tz, data);



	mutex_unlock(&tz->lock);

}

EXPORT_SYMBOL_GPL(thermal_zone_device_exec);



static void thermal_zone_device_check(struct work_struct *work)

{

	struct thermal_zone_device *tz = container_of(work, struct

include/linux/thermal.h

+4 −0
Original line number Diff line number Diff line
@@ -323,6 +323,10 @@ int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int, 
				       struct thermal_cooling_device *);

void thermal_zone_device_update(struct thermal_zone_device *,

				enum thermal_notify_event);

void thermal_zone_device_exec(struct thermal_zone_device *tz,

			      void (*cb)(struct thermal_zone_device *,

					 unsigned long),

			      unsigned long data);



struct thermal_cooling_device *thermal_cooling_device_register(const char *,

		void *, const struct thermal_cooling_device_ops *);