linux-kernel - Re: [PATCH 4/6] ARM: s3c24xx: don't select RFKILL if CONFIG

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Date:	Mon, 01 Feb 2016 09:59:48 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Arnd Bergmann <arnd@...db.de>, linux-samsung-soc@...r.kernel.org
Cc:	linux-arm-kernel@...ts.infradead.org,
	Kukjin Kim <kgene@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/6] ARM: s3c24xx: don't select RFKILL if CONFIG_NET is
 disabled

On 29.01.2016 23:50, Arnd Bergmann wrote:
> Bluetooth is only supported when network support is part of the kernel,
> so it is a bit pointless to build the hi1940-bt support without networking.
> If we try anyway, we get a Kconfig warning:
> 
> warning: (TOSA_BT && H1940BT) selects RFKILL which has unmet direct dependencies (NET)
> 
> This adds a dependency on CONFIG_NET to avoid that case.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  arch/arm/mach-s3c24xx/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
> index 5884bbb7952e..bf66c8334822 100644
> --- a/arch/arm/mach-s3c24xx/Kconfig
> +++ b/arch/arm/mach-s3c24xx/Kconfig
> @@ -227,7 +227,7 @@ config ARCH_H1940
>  
>  config H1940BT
>  	tristate "Control the state of H1940 bluetooth chip"
> -	depends on ARCH_H1940
> +	depends on ARCH_H1940 && NET
>  	select RFKILL
>  	help
>  	  This is a simple driver that is able to control

I think there shouldn't be a reverse dependency for RFKILL but instead just:
	depends on ARCH_H1940 && RFKILL
This makes it simpler and RFKILL is a user-visible symbol.

Best regards,
Krzysztof