| Message ID | 20200528192051.28034-10-andrzej.p@collabora.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | Stop monitoring disabled devices | expand |
On 5/28/20 9:20 PM, Andrzej Pietrasiewicz wrote: > Polling DISABLED devices is not desired, as all such "disabled" devices > are meant to be handled by userspace. This patch introduces and uses > should_stop_polling() to decide whether the device should be polled or not. > > Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics > --- > drivers/thermal/thermal_core.c | 16 ++++++++++++++-- > 1 file changed, 14 insertions(+), 2 deletions(-) > > diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c > index 14baf0288759..e9c0b990e4a9 100644 > --- a/drivers/thermal/thermal_core.c > +++ b/drivers/thermal/thermal_core.c > @@ -301,13 +301,22 @@ static void thermal_zone_device_set_polling(struct thermal_zone_device *tz, > cancel_delayed_work(&tz->poll_queue); > } > > +static inline bool should_stop_polling(struct thermal_zone_device *tz) > +{ > + return !thermal_zone_device_is_enabled(tz); > +} > + > static void monitor_thermal_zone(struct thermal_zone_device *tz) > { > + bool stop; > + > + stop = should_stop_polling(tz); > + > mutex_lock(&tz->lock); > > - if (tz->passive) > + if (!stop && tz->passive) > thermal_zone_device_set_polling(tz, tz->passive_delay); > - else if (tz->polling_delay) > + else if (!stop && tz->polling_delay) > thermal_zone_device_set_polling(tz, tz->polling_delay); > else > thermal_zone_device_set_polling(tz, 0); > @@ -517,6 +526,9 @@ void thermal_zone_device_update(struct thermal_zone_device *tz, > { > int count; > > + if (should_stop_polling(tz)) > + return; > + > if (atomic_read(&in_suspend)) > return; > >
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 14baf0288759..e9c0b990e4a9 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -301,13 +301,22 @@ static void thermal_zone_device_set_polling(struct thermal_zone_device *tz, cancel_delayed_work(&tz->poll_queue); } +static inline bool should_stop_polling(struct thermal_zone_device *tz) +{ + return !thermal_zone_device_is_enabled(tz); +} + static void monitor_thermal_zone(struct thermal_zone_device *tz) { + bool stop; + + stop = should_stop_polling(tz); + mutex_lock(&tz->lock); - if (tz->passive) + if (!stop && tz->passive) thermal_zone_device_set_polling(tz, tz->passive_delay); - else if (tz->polling_delay) + else if (!stop && tz->polling_delay) thermal_zone_device_set_polling(tz, tz->polling_delay); else thermal_zone_device_set_polling(tz, 0); @@ -517,6 +526,9 @@ void thermal_zone_device_update(struct thermal_zone_device *tz, { int count; + if (should_stop_polling(tz)) + return; + if (atomic_read(&in_suspend)) return;
Polling DISABLED devices is not desired, as all such "disabled" devices are meant to be handled by userspace. This patch introduces and uses should_stop_polling() to decide whether the device should be polled or not. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> --- drivers/thermal/thermal_core.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-)