HID: roccat: Mark expected switch fall-through
diff mbox series

Message ID 20190211215334.GA6216@embeddedor
State Mainlined
Commit 9b6872a123862cecd19a958f08eb9848b6a4240d
Delegated to: Jiri Kosina
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Series
  • HID: roccat: Mark expected switch fall-through
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Commit Message

Gustavo A. R. Silva Feb. 11, 2019, 9:53 p.m. UTC
In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warning:

drivers/hid/hid-roccat-kone.c: In function ‘kone_keep_values_up_to_date’:
drivers/hid/hid-roccat-kone.c:784:20: warning: this statement may fall through [-Wimplicit-fallthrough=]
   kone->actual_dpi = kone->profiles[event->value - 1].
   ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     startup_dpi;
     ~~~~~~~~~~~
drivers/hid/hid-roccat-kone.c:786:2: note: here
  case kone_mouse_event_osd_profile:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/hid/hid-roccat-kone.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Jiri Kosina Feb. 19, 2019, 1:16 p.m. UTC | #1
On Mon, 11 Feb 2019, Gustavo A. R. Silva wrote:

> In preparation to enabling -Wimplicit-fallthrough, mark switch
> cases where we are expecting to fall through.
> 
> This patch fixes the following warning:
> 
> drivers/hid/hid-roccat-kone.c: In function ‘kone_keep_values_up_to_date’:
> drivers/hid/hid-roccat-kone.c:784:20: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    kone->actual_dpi = kone->profiles[event->value - 1].
>    ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>      startup_dpi;
>      ~~~~~~~~~~~
> drivers/hid/hid-roccat-kone.c:786:2: note: here
>   case kone_mouse_event_osd_profile:
>   ^~~~
> 
> Warning level 3 was used: -Wimplicit-fallthrough=3
> 
> This patch is part of the ongoing efforts to enable
> -Wimplicit-fallthrough.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
> ---
>  drivers/hid/hid-roccat-kone.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c
> index bf4675a27396..c4dd6162c1d6 100644
> --- a/drivers/hid/hid-roccat-kone.c
> +++ b/drivers/hid/hid-roccat-kone.c
> @@ -783,6 +783,7 @@ static void kone_keep_values_up_to_date(struct kone_device *kone,
>  	case kone_mouse_event_switch_profile:
>  		kone->actual_dpi = kone->profiles[event->value - 1].
>  				startup_dpi;
> +		/* fall through */
>  	case kone_mouse_event_osd_profile:
>  		kone->actual_profile = event->value;
>  		break;

Stefan, could you please confirm that this is intended behavior?

Thanks,
Stefan Achatz Feb. 20, 2019, 8:15 a.m. UTC | #2
Am Dienstag, den 19.02.2019, 14:16 +0100 schrieb Jiri Kosina:
> On Mon, 11 Feb 2019, Gustavo A. R. Silva wrote:
>
> > In preparation to enabling -Wimplicit-fallthrough, mark switch
> > cases where we are expecting to fall through.
> >
> > This patch fixes the following warning:
> >
> > drivers/hid/hid-roccat-kone.c: In function
> > ‘kone_keep_values_up_to_date’:
> > drivers/hid/hid-roccat-kone.c:784:20: warning: this statement may
> > fall through [-Wimplicit-fallthrough=]
> >    kone->actual_dpi = kone->profiles[event->value - 1].
> >    ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >      startup_dpi;
> >      ~~~~~~~~~~~
> > drivers/hid/hid-roccat-kone.c:786:2: note: here
> >   case kone_mouse_event_osd_profile:
> >   ^~~~
> >
> > Warning level 3 was used: -Wimplicit-fallthrough=3
> >
> > This patch is part of the ongoing efforts to enable
> > -Wimplicit-fallthrough.
> >
> > Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
> > ---
> >  drivers/hid/hid-roccat-kone.c | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-
> > roccat-kone.c
> > index bf4675a27396..c4dd6162c1d6 100644
> > --- a/drivers/hid/hid-roccat-kone.c
> > +++ b/drivers/hid/hid-roccat-kone.c
> > @@ -783,6 +783,7 @@ static void kone_keep_values_up_to_date(struct
> > kone_device *kone,
> >  	case kone_mouse_event_switch_profile:
> >  		kone->actual_dpi = kone->profiles[event->value -
> > 1].
> >  				startup_dpi;
> > +		/* fall through */
> >  	case kone_mouse_event_osd_profile:
> >  		kone->actual_profile = event->value;
> >  		break;
>
> Stefan, could you please confirm that this is intended behavior?
>
> Thanks,

I already confirmed this 7 months ago but as I see only in a reply to
you.
Yes, this patch is correct.
Stefan
Jiri Kosina Feb. 20, 2019, 8:40 a.m. UTC | #3
On Wed, 20 Feb 2019, Stefan Achatz wrote:

> I already confirmed this 7 months ago but as I see only in a reply to
> you.

I guess that fell in between cracks somewhere.

> Yes, this patch is correct.

Applied, thanks.

Patch
diff mbox series

diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c
index bf4675a27396..c4dd6162c1d6 100644
--- a/drivers/hid/hid-roccat-kone.c
+++ b/drivers/hid/hid-roccat-kone.c
@@ -783,6 +783,7 @@  static void kone_keep_values_up_to_date(struct kone_device *kone,
 	case kone_mouse_event_switch_profile:
 		kone->actual_dpi = kone->profiles[event->value - 1].
 				startup_dpi;
+		/* fall through */
 	case kone_mouse_event_osd_profile:
 		kone->actual_profile = event->value;
 		break;