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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2024-04-10 19:03:10 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2024-04-24 20:42:10 +0200
commitc1beda1cfca53363ad3261c194df6cba4198f021 (patch)
tree5a61dd6210cc31225e69e03306ae62561664abd0 /drivers/thermal
parentc98e24795e8b53ff68b317ed31ddcc37cf8b6a26 (diff)
thermal: gov_user_space: Use .trip_crossed() instead of .throttle()
Notifying user space about trip points that have not been crossed is not particularly useful, so modify the User Space governor to use the .trip_crossed() callback, which is only invoked for trips that have been crossed, instead of .throttle() that is invoked for all trips in a thermal zone every time the zone is updated. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/gov_user_space.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/thermal/gov_user_space.c b/drivers/thermal/gov_user_space.c
index 7a1790b7e8f5..75137b419eb2 100644
--- a/drivers/thermal/gov_user_space.c
+++ b/drivers/thermal/gov_user_space.c
@@ -26,11 +26,13 @@ static int user_space_bind(struct thermal_zone_device *tz)
* notify_user_space - Notifies user space about thermal events
* @tz: thermal_zone_device
* @trip: trip point
+ * @crossed_up: whether or not the trip has been crossed on the way up
*
* This function notifies the user space through UEvents.
*/
-static int notify_user_space(struct thermal_zone_device *tz,
- const struct thermal_trip *trip)
+static void notify_user_space(struct thermal_zone_device *tz,
+ const struct thermal_trip *trip,
+ bool crossed_up)
{
char *thermal_prop[5];
int i;
@@ -46,13 +48,11 @@ static int notify_user_space(struct thermal_zone_device *tz,
kobject_uevent_env(&tz->device.kobj, KOBJ_CHANGE, thermal_prop);
for (i = 0; i < 4; ++i)
kfree(thermal_prop[i]);
-
- return 0;
}
static struct thermal_governor thermal_gov_user_space = {
.name = "user_space",
- .throttle = notify_user_space,
+ .trip_crossed = notify_user_space,
.bind_to_tz = user_space_bind,
};
THERMAL_GOVERNOR_DECLARE(thermal_gov_user_space);