linux-kernel - Re: [PATCH] regmap: provide dummy regmap

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Date:	Tue, 25 Nov 2014 21:39:58 +0100
From:	Lars-Peter Clausen <lars@...afoo.de>
To:	Olof Johansson <olof@...om.net>, broonie@...nel.org
CC:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] regmap: provide dummy regmap_exit()

On 11/25/2014 09:21 PM, Olof Johansson wrote:
> Fixes build error:
>
> sound/soc/soc-core.c: In function 'snd_soc_component_exit_regmap':
> sound/soc/soc-core.c:2644:2: error: implicit declaration of function 'regmap_exit' [-Werror=implicit-function-declaration]
>    regmap_exit(component->regmap);
>
> Due to the other regmap functions providing appropriate stubs when
> !CONFIG_REGMAP, but this one is missing. Add it.
>
> Signed-off-by: Olof Johansson <olof@...om.net>

I did a different patch for this I was just about to send. This looks good 
as well I guess, but ...

> ---
>   include/linux/regmap.h |    5 +++++
>   1 file changed, 5 insertions(+)
>
> diff --git a/include/linux/regmap.h b/include/linux/regmap.h
> index 4419b99..efb58a0 100644
> --- a/include/linux/regmap.h
> +++ b/include/linux/regmap.h
> @@ -737,6 +737,11 @@ static inline struct regmap *dev_get_regmap(struct device *dev,
>   	return NULL;
>   }
>
> +static inline void regmap_exit(struct regmap *map)
> +{
> +	return;

... but we really don't need the return here.

> +}
> +
>   static inline struct device *regmap_get_device(struct regmap *map)
>   {
>   	WARN_ONCE(1, "regmap API is disabled");
>

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