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SubjectRe: [PATCH] i810fb: Fix console switch regression
On Mon, 17 Mar 2008 16:41:10 +0100 Stefan Bauer <stefan.bauer@cs.tu-chemnitz.de> wrote:

> I'm sorry for the spaces in the second patch, here's a clean one with tabs.
>
> ---
> From: Stefan Bauer <stefan.bauer@cs.tu-chemnitz.de>
>
> Since 4c7ffe0b9f7f40bd818fe3af51342f64c483908e ("fbdev: prevent drivers that
> have hardware cursors from calling software cursor code") every call of
> i810fb_cursor fails with -ENXIO because of a incorrect "!".
>
> This hasn't striked until eaa0ff15c30dc9799eb4d12660edb73aeb6d32c5 ("fix !
> versus & precedence in various places") surrounded the expression with
> braces, so that the intended behavior was inverted. That caused 'pixel
> waste' - the same line of multi-colored pixels repeated over the whole
> screen - during console switch.
>
> This switches back to the original pre-4c7ffe0 behavior.
>
> Signed-off-by: Stefan Bauer <stefan.bauer@cs.tu-chemnitz.de>
> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
> Cc: Antonino Daplas <adaplas@pol.net>
>
> --- linux-2.6/drivers/video/i810/i810_main.c.orig
> +++ linux-2.6/drivers/video/i810/i810_main.c
> @@ -1476,7 +1476,7 @@ static int i810fb_cursor(struct fb_info
> struct i810fb_par *par = info->par;
> u8 __iomem *mmio = par->mmio_start_virtual;
>
> - if (!(par->dev_flags & LOCKUP))
> + if (par->dev_flags & LOCKUP)
> return -ENXIO;
>
> if (cursor->image.width > 64 || cursor->image.height > 64)

Can you please confirm that this actually fixes the bug? That wasn't clear.

Thanks.


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