linux-kernel - Re: [PATCH] video: logo: LOGO should depend on FB

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Date:   Tue, 25 Jul 2023 18:06:49 +0200
From:   Javier Martinez Canillas <javierm@...hat.com>
To:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Helge Deller <deller@....de>, Arnd Bergmann <arnd@...db.de>
Cc:     linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: Re: [PATCH] video: logo: LOGO should depend on FB_CORE i.s.o. FB

Geert Uytterhoeven <geert+renesas@...der.be> writes:

Hello Geert,

Thanks a lot for your patch!

> If CONFIG_FB_CORE=y but CONFIG_FB=n, the frame buffer bootup logos can
> no longer be enabled.  Fix this by making CONFIG_LOGO depend on
> CONFIG_FB_CORE instead of CONFIG_FB, as there is no good reason for the
> logo code to depend on the presence of real frame buffer device drivers.
>

Indeed.

> Fixes: 55bffc8170bb5813 ("fbdev: Split frame buffer support in FB and FB_CORE symbols")
> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> ---
>  drivers/video/Kconfig      | 2 +-
>  drivers/video/logo/Kconfig | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
> index e5b1cc54cafa10d5..b694d7669d3200b1 100644
> --- a/drivers/video/Kconfig
> +++ b/drivers/video/Kconfig
> @@ -63,7 +63,7 @@ if VT
>  	source "drivers/video/console/Kconfig"
>  endif
>  
> -if FB || SGI_NEWPORT_CONSOLE
> +if FB_CORE || SGI_NEWPORT_CONSOLE
>  	source "drivers/video/logo/Kconfig"
>  
>  endif
> diff --git a/drivers/video/logo/Kconfig b/drivers/video/logo/Kconfig
> index 6d6f8c08792dc897..b7d94d1dd1585a84 100644
> --- a/drivers/video/logo/Kconfig
> +++ b/drivers/video/logo/Kconfig
> @@ -5,7 +5,7 @@
>  
>  menuconfig LOGO
>  	bool "Bootup logo"
> -	depends on FB || SGI_NEWPORT_CONSOLE
> +	depends on FB_CORE || SGI_NEWPORT_CONSOLE
>  	help
>  	  Enable and select frame buffer bootup logos.

Should then move this option to drivers/video/fbdev/core/Kconfig ?

Regardless, could be done as a follow-up and the fix looks good to me.

Reviewed-by: Javier Martinez Canillas <javierm@...hat.com>

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat