On Mon, Mar 18, 2024 at 6:55 AM Dhruva Gole <d-gole@xxxxxx> wrote:
>
> The device_wakeup_disable call only returns an error if no dev exists
> however there's not much a user can do at that point.
> Rather make this function return void.
>
> Signed-off-by: Dhruva Gole <d-gole@xxxxxx>
> ---
> drivers/base/power/wakeup.c | 11 +++++++----
> include/linux/pm_wakeup.h | 5 ++---
> 2 files changed, 9 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
> index a917219feea6..752b417e8129 100644
> --- a/drivers/base/power/wakeup.c
> +++ b/drivers/base/power/wakeup.c
> @@ -451,16 +451,15 @@ static struct wakeup_source *device_wakeup_detach(struct device *dev)
> * Detach the @dev's wakeup source object from it, unregister this wakeup source
> * object and destroy it.
> */
> -int device_wakeup_disable(struct device *dev)
> +void device_wakeup_disable(struct device *dev)
> {
> struct wakeup_source *ws;
>
> if (!dev || !dev->power.can_wakeup)
> - return -EINVAL;
> + return;
>
> ws = device_wakeup_detach(dev);
> wakeup_source_unregister(ws);
> - return 0;
> }
> EXPORT_SYMBOL_GPL(device_wakeup_disable);
>
> @@ -502,7 +501,11 @@ EXPORT_SYMBOL_GPL(device_set_wakeup_capable);
> */
> int device_set_wakeup_enable(struct device *dev, bool enable)
> {
> - return enable ? device_wakeup_enable(dev) : device_wakeup_disable(dev);
> + if (enable)
> + return device_wakeup_enable(dev);
> +
> + device_wakeup_disable(dev);
> + return 0;
> }
> EXPORT_SYMBOL_GPL(device_set_wakeup_enable);
>
> diff --git a/include/linux/pm_wakeup.h b/include/linux/pm_wakeup.h
> index 6eb9adaef52b..428803eed798 100644
> --- a/include/linux/pm_wakeup.h
> +++ b/include/linux/pm_wakeup.h
> @@ -107,7 +107,7 @@ extern void wakeup_sources_read_unlock(int idx);
> extern struct wakeup_source *wakeup_sources_walk_start(void);
> extern struct wakeup_source *wakeup_sources_walk_next(struct wakeup_source *ws);
> extern int device_wakeup_enable(struct device *dev);
> -extern int device_wakeup_disable(struct device *dev);
> +extern void device_wakeup_disable(struct device *dev);
This change will introduce a build error in sdhci-pci-core.c AFAICS,
so you need to modify this file in the same patch to avoid bisection
breakage.
> extern void device_set_wakeup_capable(struct device *dev, bool capable);
> extern int device_set_wakeup_enable(struct device *dev, bool enable);
> extern void __pm_stay_awake(struct wakeup_source *ws);
> @@ -154,10 +154,9 @@ static inline int device_wakeup_enable(struct device *dev)
> return 0;
> }
>
> -static inline int device_wakeup_disable(struct device *dev)
> +static inline void device_wakeup_disable(struct device *dev)
> {
> dev->power.should_wakeup = false;
> - return 0;
> }
>
> static inline int device_set_wakeup_enable(struct device *dev, bool enable)
> --
> 2.34.1
>
