Re: [PATCH -next] platform: surface: fix non-PM_SLEEP build warnings

[Maximilian Luz]

On 12/11/20 9:41 PM, Randy Dunlap wrote:
> On 12/11/20 12:23 PM, Maximilian Luz wrote:
> > On 12/11/20 8:03 PM, Randy Dunlap wrote:
> > > Fix build warnings when CONFIG_PM_SLEEP is not enabled and these
> > > functions are not used:
> > >
> > > ../drivers/platform/surface/surface_gpe.c:189:12: warning: ‘surface_gpe_resume’ defined but not used [-Wunused-function]
> > >    static int surface_gpe_resume(struct device *dev)
> > >               ^~~~~~~~~~~~~~~~~~
> > > ../drivers/platform/surface/surface_gpe.c:184:12: warning: ‘surface_gpe_suspend’ defined but not used [-Wunused-function]
> > >    static int surface_gpe_suspend(struct device *dev)
> > >               ^~~~~~~~~~~~~~~~~~~
> > >
> > > Fixes: 274335f1c557 ("platform/surface: Add Driver to set up lid GPEs on MS Surface device")
> > > Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> > > Cc: Maximilian Luz <luzmaximilian@xxxxxxxxx>
> > > Cc: Hans de Goede <hdegoede@xxxxxxxxxx>
> > > Cc: platform-driver-x86@xxxxxxxxxxxxxxx
> > > ---
> > >    drivers/platform/surface/surface_gpe.c |    2 ++
> > >    1 file changed, 2 insertions(+)
> > >
> > > --- linux-next-20201210.orig/drivers/platform/surface/surface_gpe.c
> > > +++ linux-next-20201210/drivers/platform/surface/surface_gpe.c
> > > @@ -181,6 +181,7 @@ static int surface_lid_enable_wakeup(str
> > >        return 0;
> > >    }
> > >    +#ifdef CONFIG_PM_SLEEP
> > >    static int surface_gpe_suspend(struct device *dev)
> > >    {
> > >        return surface_lid_enable_wakeup(dev, true);
> > > @@ -190,6 +191,7 @@ static int surface_gpe_resume(struct dev
> > >    {
> > >        return surface_lid_enable_wakeup(dev, false);
> > >    }
> > > +#endif
> > >      static SIMPLE_DEV_PM_OPS(surface_gpe_pm, surface_gpe_suspend, surface_gpe_resume);
> > >   
> >
> > Right, thanks.
> >
> > I assume this covers all instances of this warning in platform/surface?
> > Otherwise, a "platform: surface: gpe: ..." subject would make more sense.
>
> It should cover all of surface/. It was an allmodconfig and then I disabled
> CONFIG_PM and CONFIG_PM_SLEEP etc.

Perfect, thanks!

> As for prefixes, how many levels do we want to use?
> (that's mostly rhetorical, although I would read answers :)

Looking at platform/x86 and past commit messages, I'd prefer something
like

    platform/surface: <component>: <message>

This would be similar to the platform/x86 style. So two or three,
depending on how you count "platform/surface". I agree that this
probably tends to get a bit long, so I propose we drop the surface_
prefix on the component part to help with that. So, for example,
"surface_gpe" will become "gpe".

> > As for the rest:
> >
> > Reviewed-by: Maximilian Luz <luzmaximilian@xxxxxxxxx>
>
> thanks.

Regards,
Max