diff mbox series

[v7,02/29] thermal/sysfs: Always expose hysteresis attributes

Message ID 20220928210059.891387-3-daniel.lezcano@linaro.org (mailing list archive)
State Superseded
Headers show
Series Rework the trip points creation | expand

Commit Message

Daniel Lezcano Sept. 28, 2022, 9 p.m. UTC
Instead of avoiding to expose the hysteresis attributes of a thermal
zone when its get_trip_hyst() operation is not defined, which is
confusing, expose them always and use the default
thermal_zone_get_trip() function returning 0 hysteresis when that
operation is not present.

The hysteresis of 0 is perfectly valid, so this change should not
introduce any backwards compatibility issues.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/thermal/thermal_sysfs.c | 25 +++++++++----------------
 1 file changed, 9 insertions(+), 16 deletions(-)

Comments

Rafael J. Wysocki Sept. 30, 2022, 5:23 p.m. UTC | #1
On Wed, Sep 28, 2022 at 11:01 PM Daniel Lezcano
<daniel.lezcano@linaro.org> wrote:
>
> Instead of avoiding to expose the hysteresis attributes of a thermal
> zone when its get_trip_hyst() operation is not defined, which is
> confusing, expose them always and use the default
> thermal_zone_get_trip() function returning 0 hysteresis when that
> operation is not present.
>
> The hysteresis of 0 is perfectly valid, so this change should not
> introduce any backwards compatibility issues.
>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

> ---
>  drivers/thermal/thermal_sysfs.c | 25 +++++++++----------------
>  1 file changed, 9 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
> index d093d7aa64c6..6c45194aaabb 100644
> --- a/drivers/thermal/thermal_sysfs.c
> +++ b/drivers/thermal/thermal_sysfs.c
> @@ -426,23 +426,20 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
>                 return -ENOMEM;
>         }
>
> -       if (tz->ops->get_trip_hyst) {
> -               tz->trip_hyst_attrs = kcalloc(tz->num_trips,
> -                                             sizeof(*tz->trip_hyst_attrs),
> -                                             GFP_KERNEL);
> -               if (!tz->trip_hyst_attrs) {
> -                       kfree(tz->trip_type_attrs);
> -                       kfree(tz->trip_temp_attrs);
> -                       return -ENOMEM;
> -               }
> +       tz->trip_hyst_attrs = kcalloc(tz->num_trips,
> +                                     sizeof(*tz->trip_hyst_attrs),
> +                                     GFP_KERNEL);
> +       if (!tz->trip_hyst_attrs) {
> +               kfree(tz->trip_type_attrs);
> +               kfree(tz->trip_temp_attrs);
> +               return -ENOMEM;
>         }
>
>         attrs = kcalloc(tz->num_trips * 3 + 1, sizeof(*attrs), GFP_KERNEL);
>         if (!attrs) {
>                 kfree(tz->trip_type_attrs);
>                 kfree(tz->trip_temp_attrs);
> -               if (tz->ops->get_trip_hyst)
> -                       kfree(tz->trip_hyst_attrs);
> +               kfree(tz->trip_hyst_attrs);
>                 return -ENOMEM;
>         }
>
> @@ -475,9 +472,6 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
>                 }
>                 attrs[indx + tz->num_trips] = &tz->trip_temp_attrs[indx].attr.attr;
>
> -               /* create Optional trip hyst attribute */
> -               if (!tz->ops->get_trip_hyst)
> -                       continue;
>                 snprintf(tz->trip_hyst_attrs[indx].name, THERMAL_NAME_LENGTH,
>                          "trip_point_%d_hyst", indx);
>
> @@ -514,8 +508,7 @@ static void destroy_trip_attrs(struct thermal_zone_device *tz)
>
>         kfree(tz->trip_type_attrs);
>         kfree(tz->trip_temp_attrs);
> -       if (tz->ops->get_trip_hyst)
> -               kfree(tz->trip_hyst_attrs);
> +       kfree(tz->trip_hyst_attrs);
>         kfree(tz->trips_attribute_group.attrs);
>  }
>
> --
> 2.34.1
>
diff mbox series

Patch

diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index d093d7aa64c6..6c45194aaabb 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -426,23 +426,20 @@  static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
 		return -ENOMEM;
 	}
 
-	if (tz->ops->get_trip_hyst) {
-		tz->trip_hyst_attrs = kcalloc(tz->num_trips,
-					      sizeof(*tz->trip_hyst_attrs),
-					      GFP_KERNEL);
-		if (!tz->trip_hyst_attrs) {
-			kfree(tz->trip_type_attrs);
-			kfree(tz->trip_temp_attrs);
-			return -ENOMEM;
-		}
+	tz->trip_hyst_attrs = kcalloc(tz->num_trips,
+				      sizeof(*tz->trip_hyst_attrs),
+				      GFP_KERNEL);
+	if (!tz->trip_hyst_attrs) {
+		kfree(tz->trip_type_attrs);
+		kfree(tz->trip_temp_attrs);
+		return -ENOMEM;
 	}
 
 	attrs = kcalloc(tz->num_trips * 3 + 1, sizeof(*attrs), GFP_KERNEL);
 	if (!attrs) {
 		kfree(tz->trip_type_attrs);
 		kfree(tz->trip_temp_attrs);
-		if (tz->ops->get_trip_hyst)
-			kfree(tz->trip_hyst_attrs);
+		kfree(tz->trip_hyst_attrs);
 		return -ENOMEM;
 	}
 
@@ -475,9 +472,6 @@  static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
 		}
 		attrs[indx + tz->num_trips] = &tz->trip_temp_attrs[indx].attr.attr;
 
-		/* create Optional trip hyst attribute */
-		if (!tz->ops->get_trip_hyst)
-			continue;
 		snprintf(tz->trip_hyst_attrs[indx].name, THERMAL_NAME_LENGTH,
 			 "trip_point_%d_hyst", indx);
 
@@ -514,8 +508,7 @@  static void destroy_trip_attrs(struct thermal_zone_device *tz)
 
 	kfree(tz->trip_type_attrs);
 	kfree(tz->trip_temp_attrs);
-	if (tz->ops->get_trip_hyst)
-		kfree(tz->trip_hyst_attrs);
+	kfree(tz->trip_hyst_attrs);
 	kfree(tz->trips_attribute_group.attrs);
 }