linux-kernel - Re: [PATCH] fbdev: Fix logic error in "offb" name match

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Message-ID: <54ed44ef-7f89-4f56-b2c0-f36b2f0bfa63@gmx.de>
Date: Thu, 9 Oct 2025 01:02:58 +0200
From: Helge Deller <deller@....de>
To: Finn Thain <fthain@...ux-m68k.org>, Simona Vetter <simona@...ll.ch>,
 Thomas Zimmermann <tzimmermann@...e.de>,
 Javier Martinez Canillas <javierm@...hat.com>
Cc: stable@...r.kernel.org, linux-fbdev@...r.kernel.org,
 dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fbdev: Fix logic error in "offb" name match

On 10/9/25 00:56, Finn Thain wrote:
> A regression was reported to me recently whereby /dev/fb0 had disappeared
> from a PowerBook G3 Series "Wallstreet". The problem shows up when the
> "video=ofonly" parameter is passed to the kernel, which is what the
> bootloader does when "no video driver" is selected. The cause of the
> problem is the "offb" string comparison, which got mangled when it got
> refactored. Fix it.
> 
> Cc: stable@...r.kernel.org
> Fixes: 93604a5ade3a ("fbdev: Handle video= parameter in video/cmdline.c")
> Reported-and-tested-by: Stan Johnson <userm57@...oo.com>
> Signed-off-by: Finn Thain <fthain@...ux-m68k.org>
> ---
>   drivers/video/fbdev/core/fb_cmdline.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)

applied.

Thanks!
Helge