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

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Date:   Tue, 25 Jul 2023 21:53:16 +0200
From:   Javier Martinez Canillas <javierm@...hat.com>
To:     Thomas Zimmermann <tzimmermann@...e.de>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Helge Deller <deller@....de>, Arnd Bergmann <arnd@...db.de>,
        linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] video: logo: LOGO should depend on FB_CORE i.s.o. FB

Thomas Zimmermann <tzimmermann@...e.de> writes:

> Hi
>

[...]

>> 
>> Yes. I meant to move drivers/video/logo/ to drivers/fbdev/core/logo and to
>> source its Kconfig from drivers/fbdev/core/Kconfig, since it now depends
>> on FB_CORE.
>
> No, please rather leave it where it is. There's no code dependencies to 
> the fbdev core; it merely depends on the Kconfig token.
>

Sure, fine by me. But I disagree that there's merely a Kconfig dependency.
The include/linux/linux_logo.h header declares both fb_find_logo() and
fb_append_extra_logo().

The fb_find_logo() function is defined in drivers/video/logo.c while the
fb_append_extra_logo() is in drivers/video/fbdev/core/fbmem.c, even though
only arch/powerpc/platforms/cell/spu_base.c uses fb_append_extra_logo().

So there's a relationship already between logo and fbdev/core, that's why
I wondered if would make sense to also move drivers/video/logo.c to have
both functions in there.

Yes, as noted drivers/video/console/newport_con.c also uses fb_find_logo()
but the only other user of that in drivers/video/fbdev/core/fbmem.c.

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat