Subject: [PATCH 11/11] pm/drivers: fix use of SIMPLE_DEV_PM_OPS

From: [email-masked] (Kevin Hilman)
Date: Wed, 08 Aug 2012 11:11:25 -0700

Arnd Bergmann <[email-masked]> writes:

> A few drivers use a construct like
>
>  #ifdef CONFIG_PM
>  static int foo_suspend(struct device *pdev)
>  {
>     ...
>  }
>  static int foo_resume struct device *pdev)
>  {
>     ...
>  }
>  #endif
>  static SIMPLE_DEV_PM_OPS(foo_pm, foo_suspend, foo_resume);
>
> which leaves the two functions unused if CONFIG_PM is enabled
> but CONFIG_PM_SLEEP is disabled. I found this while building
> all defconfig files on ARM. It's not clear to me if this is
> the right solution, but at least it makes the code consistent
> again.
>
> Without this patch, building omap1_defconfig results in:
>
> drivers/char/hw_random/omap-rng.c:165:12: warning: 'omap_rng_suspend' defined but not used [-Wunused-function]
> drivers/char/hw_random/omap-rng.c:171:12: warning: 'omap_rng_resume' defined but not used [-Wunused-function]
> sound/drivers/dummy.c:1068:12: warning: 'snd_dummy_suspend' defined but not used [-Wunused-function]
> sound/drivers/dummy.c:1078:12: warning: 'snd_dummy_resume' defined but not used [-Wunused-function]
>
> and building tegra_defconfig results in:
>
> drivers/i2c/busses/i2c-tegra.c:716:12: warning: 'tegra_i2c_suspend' defined but not used [-Wunused-function]
> drivers/i2c/busses/i2c-tegra.c:727:12: warning: 'tegra_i2c_resume' defined but not used [-Wunused-function]
>
> Signed-off-by: Arnd Bergmann <[email-masked]>
> Cc: Rafael J. Wysocki <[email-masked]>
> Cc: Takashi Iwai <[email-masked]>
> Cc: Laxman Dewangan <[email-masked]>
> ---
>  drivers/char/hw_random/omap-rng.c |    2 +-

For the OMAP change,

Acked-by: Kevin Hilman <[email-masked]>