lkml.org 
[lkml]   [2020]   [Jun]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v2 1/5] thermal: core: Add helpers to browse the cdev, tz and governor list
On Thu, Jun 25, 2020 at 8:15 PM Daniel Lezcano
<daniel.lezcano@linaro.org> wrote:
>
> The cdev, tz and governor list, as well as their respective locks are
> statically defined in the thermal_core.c file.
>
> In order to give a sane access to these list, like browsing all the
> thermal zones or all the cooling devices, let's define a set of
> helpers where we pass a callback as a parameter to be called for each
> thermal entity.
>
> We keep the self-encapsulation and ensure the locks are correctly
> taken when looking at the list.
>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
> ---
> drivers/thermal/thermal_core.c | 51 ++++++++++++++++++++++++++++++++++

Is the idea to not use thermal_helpers.c from now on? It fits
perfectly with a patch I have to merge all its contents to
thermal_core.c :-)


> drivers/thermal/thermal_core.h | 9 ++++++
> 2 files changed, 60 insertions(+)
>
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index 2a3f83265d8b..e2f8d2550ecd 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -611,6 +611,57 @@ void thermal_zone_device_rebind_exception(struct thermal_zone_device *tz,
> mutex_unlock(&thermal_list_lock);
> }
>
> +int for_each_thermal_governor(int (*cb)(struct thermal_governor *, void *),
> + void *data)


> +{
> + struct thermal_governor *gov;
> + int ret = 0;
> +
> + mutex_lock(&thermal_governor_lock);
> + list_for_each_entry(gov, &thermal_governor_list, governor_list) {
> + ret = cb(gov, data);
> + if (ret)
> + break;
> + }
> + mutex_unlock(&thermal_governor_lock);
> +
> + return ret;
> +}
> +
> +int for_each_thermal_cooling_device(int (*cb)(struct thermal_cooling_device *,
> + void *), void *data)
> +{
> + struct thermal_cooling_device *cdev;
> + int ret = 0;
> +
> + mutex_lock(&thermal_list_lock);
> + list_for_each_entry(cdev, &thermal_cdev_list, node) {
> + ret = cb(cdev, data);
> + if (ret)
> + break;
> + }
> + mutex_unlock(&thermal_list_lock);
> +
> + return ret;
> +}
> +
> +int for_each_thermal_zone(int (*cb)(struct thermal_zone_device *, void *),
> + void *data)
> +{
> + struct thermal_zone_device *tz;
> + int ret = 0;
> +
> + mutex_lock(&thermal_list_lock);
> + list_for_each_entry(tz, &thermal_tz_list, node) {
> + ret = cb(tz, data);
> + if (ret)
> + break;
> + }
> + mutex_unlock(&thermal_list_lock);
> +
> + return ret;
> +}
> +
> void thermal_zone_device_unbind_exception(struct thermal_zone_device *tz,
> const char *cdev_type, size_t size)
> {
> diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
> index 4e271016b7a9..bb8f8aee79eb 100644
> --- a/drivers/thermal/thermal_core.h
> +++ b/drivers/thermal/thermal_core.h
> @@ -41,6 +41,15 @@ extern struct thermal_governor *__governor_thermal_table_end[];
> __governor < __governor_thermal_table_end; \
> __governor++)
>
> +int for_each_thermal_zone(int (*cb)(struct thermal_zone_device *, void *),
> + void *);
> +
> +int for_each_thermal_cooling_device(int (*cb)(struct thermal_cooling_device *,
> + void *), void *);
> +
> +int for_each_thermal_governor(int (*cb)(struct thermal_governor *, void *),
> + void *thermal_governor);
> +
> struct thermal_attr {
> struct device_attribute attr;
> char name[THERMAL_NAME_LENGTH];
> --
> 2.17.1
>

\
 
 \ /
  Last update: 2020-06-30 13:47    [W:0.143 / U:0.216 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site