Re: [PATCH 1/4] gpio: mvebu: Add limited PWM support

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On Fri, Mar 17, 2017 at 10:17:47AM +0100, Ralph Sennhauser wrote:
> On Thu, 16 Mar 2017 17:03:05 +0100
> Linus Walleij <linus.walleij@xxxxxxxxxx> wrote:
[...]
> > > +static void mvebu_pwm_suspend(struct mvebu_gpio_chip *mvchip)
> > > +static void mvebu_pwm_resume(struct mvebu_gpio_chip *mvchip)
> > 
> > I think both of these need to be tagged __maybe_unused to not give
> > noise in randconfig builds.
> 
> I haven't seen any warnings with CONFIG_PWM disabled. Which
> configuration you expect to trigger a warning? mvebu_pwm_probe should
> be the same, right?

It's got nothing to do with CONFIG_PWM and as far as I can tell your
usage of IS_ENABLED() is fine here. However, if you try building the
driver with a !PM configuration, both *_suspend() and *_resume() end
up being unused and giving you a warning.

Thierry

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