linux-kernel - Re: [PATCH] mmc: fix mmc_{un,}register_pm

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Date:	Fri, 20 Nov 2015 16:25:29 +0100
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-mmc <linux-mmc@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mmc: fix mmc_{un,}register_pm_notifier prototypes

On 20 November 2015 at 11:28, Arnd Bergmann <arnd@...db.de> wrote:
> The mmc pm notifiers were recently reworked, but the new
> code produces a lot of warnings when CONFIG_PM_SLEEP is disabled:
>
> In file included from ../drivers/mmc/core/sdio_bus.c:27:0:
> drivers/mmc/core/core.h:97:13: warning: 'mmc_register_pm_notifier' defined but not used [-Wunused-function]
>
> The obvious solution is to add the 'inline' keyword at the
> function definition, as it should be for any function defined
> in a header file.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: 0e40be7c20e0 ("mmc: core: Refactor code to register the MMC PM notifier")

My bad. How could I even *not* notice those warnings.

Thanks for helping out Arnd, patch applied!

Kind regards
Uffe

>
> diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
> index bd00ac2cdc1b..0fa86a2afc26 100644
> --- a/drivers/mmc/core/core.h
> +++ b/drivers/mmc/core/core.h
> @@ -94,8 +94,8 @@ int mmc_hs400_to_hs200(struct mmc_card *card);
>  void mmc_register_pm_notifier(struct mmc_host *host);
>  void mmc_unregister_pm_notifier(struct mmc_host *host);
>  #else
> -static void mmc_register_pm_notifier(struct mmc_host *host) { }
> -static void mmc_unregister_pm_notifier(struct mmc_host *host) { }
> +static inline void mmc_register_pm_notifier(struct mmc_host *host) { }
> +static inline void mmc_unregister_pm_notifier(struct mmc_host *host) { }
>  #endif
>
>  #endif
>
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