linux-kernel - Re: Build regressions/improvements in v3.10-rc1 (cris)

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Message-ID: <CAMuHMdW6p6tP=wwBNV9uAAbwwgpyzMiPxsBSJNOUazhznYC4iQ@mail.gmail.com>
Date:	Tue, 14 May 2013 14:06:51 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Linux Kernel Development <linux-kernel@...r.kernel.org>
Cc:	Cris <linux-cris-kernel@...s.com>,
	Linux Fbdev development list <linux-fbdev@...r.kernel.org>
Subject: Re: Build regressions/improvements in v3.10-rc1 (cris)

On Sun, May 12, 2013 at 10:44 PM, Geert Uytterhoeven
<geert@...ux-m68k.org> wrote:
> drivers/video/console/fonts.c:71:2: error: #error No fonts configured.: 2 errors in 2 logs
>         v3.10-rc1/cris/cris-allmodconfig v3.10-rc1/cris/cris-allyesconfig
>
>         Fbdev issue?

This is caused by cris not using the generic drivers/Kconfig, and thus not
traversing drivers/video/console/Kconfig.
As the build system does traverse drivers/video/console/Makefile, fonts.c
is compiled with an inconsistent configuration.

Two solutions:
  1. Add drivers/video/console/Kconfig to arch/cris/Kconfig,
  2. Switch cris to drivers/Kconfig,

I prefer two, as this is what's done by all (except h8300) other
architectures. This will seriously broaden the scope of allmodconfig,
though, and require more fixes (e.g. missing <asm/vga.h>).

Note: The decision logic for compiling drivers/video/console/fonts.c is
      overly complicated, and seems to be buggy for some stuff living
      outside drivers drivers/video (drivers/media/platform/vivi.c and
      drivers/staging/media/solo6x10/solo6x10-enc.c). I think this should
      be resolved in Kconfig logic, using a new FONT_SUPPORT
      symbol (FONTS is already taken).

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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