linux-kernel - Re: [PATCH] platform/x86: fix kconfig dependency warning for FUJITSU

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Message-ID: <772f32e2-342f-bdbf-7753-2ee54efebaaf@redhat.com>
Date:   Thu, 17 Sep 2020 19:05:24 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Necip Fazil Yildiran <fazilyildiran@...il.com>, andy@...radead.org
Cc:     matan@...alib.org, platform-driver-x86@...r.kernel.org,
        linux-kernel@...r.kernel.org, paul@...zz.com, jeho@...utexas.edu
Subject: Re: [PATCH] platform/x86: fix kconfig dependency warning for
 FUJITSU_LAPTOP

Hi,

On 9/17/20 6:16 PM, Necip Fazil Yildiran wrote:
> When FUJITSU_LAPTOP is enabled and NEW_LEDS is disabled, it results in the
> following Kbuild warning:
> 
> WARNING: unmet direct dependencies detected for LEDS_CLASS
>    Depends on [n]: NEW_LEDS [=n]
>    Selected by [y]:
>    - FUJITSU_LAPTOP [=y] && X86 [=y] && X86_PLATFORM_DEVICES [=y] && ACPI [=y] && INPUT [=y] && BACKLIGHT_CLASS_DEVICE [=y] && (ACPI_VIDEO [=n] || ACPI_VIDEO [=n]=n)
> 
> The reason is that FUJITSU_LAPTOP selects LEDS_CLASS without depending on
> or selecting NEW_LEDS while LEDS_CLASS is subordinate to NEW_LEDS.
> 
> Honor the kconfig menu hierarchy to remove kconfig dependency warnings.
> 
> Reported-by: Hans de Goede <hdegoede@...hat.com>
> Fixes: d89bcc83e709 ("platform/x86: fujitsu-laptop: select LEDS_CLASS")
> Signed-off-by: Necip Fazil Yildiran <fazilyildiran@...il.com>

Thank you, patch looks good to me:

Reviewed-by: Hans de Goede <hdegoede@...hat.com>

Regards,

Hans


> ---
>   drivers/platform/x86/Kconfig | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index 40219bba6801..3cd2b99628ba 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig
> @@ -469,6 +469,7 @@ config FUJITSU_LAPTOP
>   	depends on BACKLIGHT_CLASS_DEVICE
>   	depends on ACPI_VIDEO || ACPI_VIDEO = n
>   	select INPUT_SPARSEKMAP
> +	select NEW_LEDS
>   	select LEDS_CLASS
>   	help
>   	  This is a driver for laptops built by Fujitsu:
>