diff mbox series

[1/3] PM: wakeup: make device_wakeup_disable return void

Message ID 20240318055054.1564696-2-d-gole@ti.com (mailing list archive)
State New
Headers show
Series PM: wakeup: make device_wakeup_disable return void | expand

Commit Message

Dhruva Gole March 18, 2024, 5:50 a.m. UTC 
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@ti.com>
---
 drivers/base/power/wakeup.c | 11 +++++++----
 include/linux/pm_wakeup.h   |  5 ++---
 2 files changed, 9 insertions(+), 7 deletions(-)

Comments

Rafael J. Wysocki March 18, 2024, 1:47 p.m. UTC | #1 
On Mon, Mar 18, 2024 at 6:55 AM Dhruva Gole <d-gole@ti.com> 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@ti.com>
> ---
>  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
>
Dhruva Gole March 18, 2024, 3:19 p.m. UTC | #2 
On Mar 18, 2024 at 14:47:45 +0100, Rafael J. Wysocki wrote:
> On Mon, Mar 18, 2024 at 6:55 AM Dhruva Gole <d-gole@ti.com> 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@ti.com>
> > ---
> >  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.

Alright, I have respinned the series and fixed up the first patch
itself.

Thanks!
diff mbox series

Patch

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);
 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)