linux-kernel - Re: [PATCH 3/10] framebuffer: fix cfb

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Message-ID: <alpine.LRH.2.02.1401231539320.21686@file01.intranet.prod.int.rdu2.redhat.com>
Date:	Thu, 23 Jan 2014 15:44:30 -0500 (EST)
From:	Mikulas Patocka <mpatocka@...hat.com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/10] framebuffer: fix cfb_copyarea



On Thu, 23 Jan 2014, Geert Uytterhoeven wrote:

> On Thu, Jan 23, 2014 at 7:18 PM, Mikulas Patocka <mpatocka@...hat.com> wrote:
> > The cfb_copyarea code was very buggy and it looks like it was written
> > and never tried with non-8-pixel font.
> 
> My memory may suffer from bitrot, but I think I tested it with the Sun
> 12x22 font. That was on big endian (PPC), though.

The bug happens when the horizontal font size in bytes is not divisible by 
(sizeof(long) / 2).

Mikulas

> BTW, good to see you still have a working TGA. My PPC and Alpha gear
> died a decade ago.
> 
> 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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