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thermal: gov_user_space: Use .trip_crossed() instead of .throttle()

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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>
This commit is contained in:
Rafael J. Wysocki 2024-04-10 19:03:10 +02:00
parent c98e24795e
commit c1beda1cfc
1 changed files with 5 additions and 5 deletions
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10
drivers/thermal/gov_user_space.c
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@ -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);