Re: [PATCH] iio: magn/ak8974: avoid unused function warning

[Linus Walleij]

On Fri, Aug 26, 2016 at 5:31 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:

> The ak8974_configure() function is used only from the PM code,
> but that can be hidden when CONFIG_PM is disabled:
>
> drivers/iio/magnetometer/ak8974.c:201:12: error: 'ak8974_configure' defined but not used [-Werror=unused-function]
>
> This replaces the #ifdef with a __maybe_unused annotation, which
> will work correctly in all configurations and avoid the warning,
> as the compiler can now see where ak8974_configure is called from.
>
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> Fixes: 7c94a8b2ee8c ("iio: magn: add a driver for AK8974")

Nice catch!
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

Yours,
Linus Walleij