linux-kernel - Re: [PATCH] mmc: sunxi: mark PM functions as __maybe

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Date:   Mon, 28 May 2018 08:50:43 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Ulf Hansson <ulf.hansson@...aro.org>, Chen-Yu Tsai <wens@...e.org>,
        linux-mmc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mmc: sunxi: mark PM functions as __maybe_unused

On Fri, May 25, 2018 at 11:07:42PM +0200, Arnd Bergmann wrote:
> The newly added runtime-pm functions cause a harmless warning
> when CONFIG_PM is disabled:
> 
> drivers/mmc/host/sunxi-mmc.c:1452:12: error: 'sunxi_mmc_runtime_suspend' defined but not used [-Werror=unused-function]
>  static int sunxi_mmc_runtime_suspend(struct device *dev)
>             ^~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/mmc/host/sunxi-mmc.c:1435:12: error: 'sunxi_mmc_runtime_resume' defined but not used [-Werror=unused-function]
>  static int sunxi_mmc_runtime_resume(struct device *dev)
> 
> This marks them as __maybe_unused to shut up the warning.
> 
> Fixes: 9a8e1e8cc2c0 ("mmc: sunxi: Add runtime_pm support")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Acked-by: Maxime Ripard <maxime.ripard@...tlin.com>

Thanks!
Maxime

-- 
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

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