Re: [PATCH] media: renesas-ceu: mark PM functions as __maybe_unused

[Simon Horman]

On Thu, Mar 01, 2018 at 12:19:37AM +0100, Arnd Bergmann wrote:
> The PM runtime operations are unused when CONFIG_PM is disabled,
> leading to a harmless warning:
> 
> drivers/media/platform/renesas-ceu.c:1003:12: error: 'ceu_runtime_suspend' defined but not used [-Werror=unused-function]
>  static int ceu_runtime_suspend(struct device *dev)
>             ^~~~~~~~~~~~~~~~~~~
> drivers/media/platform/renesas-ceu.c:987:12: error: 'ceu_runtime_resume' defined but not used [-Werror=unused-function]
>  static int ceu_runtime_resume(struct device *dev)
>             ^~~~~~~~~~~~~~~~~~
> 
> This adds a __maybe_unused annotation to shut up the warning.
> 
> Fixes: 32e5a70dc8f4 ("media: platform: Add Renesas CEU driver")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>