linux-kernel - Re: [PATCH] ARC: add negative dependency for VGA

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Message-ID: <CAMuHMdW0hzGN74pCRhCUwJ0Ua3YN94csFfu3Mb-STeCuLosoGw@mail.gmail.com>
Date:	Mon, 17 Aug 2015 18:21:01 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Yuriy Kolerov <yuriy.kolerov@...opsys.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux-Arch <linux-arch@...r.kernel.org>,
	Linux Fbdev development list <linux-fbdev@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	Vineet Gupta <Vineet.Gupta1@...opsys.com>,
	Alexey Brodkin <Alexey.Brodkin@...opsys.com>,
	Anton.Kolesov@...opsys.com,
	Francois Bedard <Francois.Bedard@...opsys.com>
Subject: Re: [PATCH] ARC: add negative dependency for VGA_CONSOLE

On Mon, Aug 17, 2015 at 5:52 PM, Yuriy Kolerov
<yuriy.kolerov@...opsys.com> wrote:
> Architectures which support VGA console must define screen_info
> structurture from "uapi/linux/screen_info.h". Otherwise undefined
> symbol error occurs. Usually it's defined in "setup.c" for each
> architecture.
>
> If an architecture does not support VGA console (ARC's case)
> there are 2 ways: define a dummy instance of screen_info or add
> a negative dependency for VGA_CONSOLE in to prevent selecting
> this option.
>
> I've implemented the second way. However the best solution is to
> add HAVE_VGA_CONSOLE option for targets which support VGA
> console. Then turn off VGA_CONSOLE by default and add dependency
> to HAVE_VGA_CONSOLE. But right now it's better to just add a
> negative dependency for ARC and then consider how to collaborate
> about this issue with maintainers of other architectures.

+1

> Signed-off-by: Yuriy Kolerov <yuriy.kolerov@...opsys.com>

Acked-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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