Re: [PATCH net-next 2/2] pcnet32: Mark PM functions as __maybe_unused

[David Miller]

From: Nathan Chancellor <natechancellor@xxxxxxxxx>
Date: Tue, 30 Jun 2020 14:00:34 -0700

> In certain configurations without power management support, the
> following warnings happen:
> 
> ../drivers/net/ethernet/amd/pcnet32.c:2928:12: warning:
> 'pcnet32_pm_resume' defined but not used [-Wunused-function]
>  2928 | static int pcnet32_pm_resume(struct device *device_d)
>       |            ^~~~~~~~~~~~~~~~~
> ../drivers/net/ethernet/amd/pcnet32.c:2916:12: warning:
> 'pcnet32_pm_suspend' defined but not used [-Wunused-function]
>  2916 | static int pcnet32_pm_suspend(struct device *device_d)
>       |            ^~~~~~~~~~~~~~~~~~
> 
> Mark these functions as __maybe_unused to make it clear to the compiler
> that this is going to happen based on the configuration, which is the
> standard for these types of functions.
> 
> Fixes: a86688fbef1b ("pcnet32: Convert to generic power management")
> Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>

Applied.