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SubjectRe: [SPAM?]Re: arch/m68k/68000/dragen2.c:73:16: error: 'screen_bits' undeclared
Hi Greg,

On Wed, Feb 17, 2021 at 5:59 AM Greg Ungerer <gerg@linux-m68k.org> wrote:
> On 12/2/21 8:05 pm, Arnd Bergmann wrote:
> > On Fri, Feb 12, 2021 at 6:48 AM kernel test robot <lkp@intel.com> wrote:
> >> FYI, the error/warning still remains.
> >
> >> | ^~~~~~~~~~~~
> >> arch/m68k/68000/dragen2.c: In function 'init_dragen2':
> >>>> arch/m68k/68000/dragen2.c:73:16: error: 'screen_bits' undeclared (first use in this function)
> >> 73 | LSSA = (long) screen_bits;
> >> | ^~~~~~~~~~~
> >> arch/m68k/68000/dragen2.c:73:16: note: each undeclared identifier is reported only once for each function it appears in
> >
> > This problem existed before my patch, I just moved the line to another file.
> > To fix it, one needs to test on real hardware and figure out what is supposed
> > to go in there.
> >
> > The bug was apparently introduced in linux-2.5.70 in this commit:
> >
> > commit 2b1a7e97c8c2d6330a432cbcaf83a0ef5fab848e
> > Author: gerg <gerg>
> > Date: Mon May 26 16:45:57 2003 +0000
> >
> > [PATCH] fix m68knommu DragonEngine2 target setup code
> >
> > Numerous fixes for the m68knommu DragonEngine2 setup code.
> >
> > It was out of date relative to more recent kernels. Original patches
> > from Georges Menie.
> >
> > BKrev: 3ed244c5dPVeFKP63b4kkeS_rEshag
>
> Digging around a bit I think the screen_bits data structure was
> originally in a screen.h file that was generated from a screen.xbm file.
> That was removed in commit 0c0e6db80683 ("m68k: drop unused parts of
> 68VZ328 Makefile").
>
> Obviously no one seems to be using this, that has been broken for a long
> time now.
>
> I could restore the generated screen.h here, so this could compile at
> least. I don't have any of the hardware supported in the arch/m68k/68000
> directory, so I can't test anything we fix in there.

Do you have the generated screen.h?
Looks like both the tool (xbm2lcd.pl) and the source (screen.xbm)
never made it upstream?

> The other option is to remove the dragen code altogether.

Just remove the part protected by checks for CONFIG_INIT_LCD?

Gr{oetje,eeting}s,

Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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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