linux-kernel - Re: [PATCH] sparc: Fix undefined reference to fb_is_primary

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Date: Tue, 20 Feb 2024 09:21:22 +0100
From: Thomas Zimmermann <tzimmermann@...e.de>
To: Javier Martinez Canillas <javierm@...hat.com>,
 linux-kernel@...r.kernel.org
Cc: kernel test robot <lkp@...el.com>, oe-kbuild-all@...ts.linux.dev,
 Andreas Larsson <andreas@...sler.com>, Arnd Bergmann <arnd@...db.de>,
 "David S. Miller" <davem@...emloft.net>, Helge Deller <deller@....de>,
 sparclinux@...r.kernel.org
Subject: Re: [PATCH] sparc: Fix undefined reference to fb_is_primary_device



Am 20.02.24 um 01:34 schrieb Javier Martinez Canillas:
> Commit 55bffc8170bb ("fbdev: Split frame buffer support in FB and FB_CORE
> symbols") added a new FB_CORE Kconfig symbol, that can be enabled to only
> have fbcon/VT and DRM fbdev emulation, but without support for any legacy
> fbdev driver.
>
> Unfortunately, it missed to change a CONFIG_FB in arch/sparc/Makefile and
> that leads to the following linking error in some sparc64 configurations:
>
>     sparc64-linux-ld: drivers/video/fbdev/core/fbcon.o: in function `fbcon_fb_registered':
>>> fbcon.c:(.text+0x4f60): undefined reference to `fb_is_primary_device'
> Fixes: 55bffc8170bb ("fbdev: Split frame buffer support in FB and FB_CORE symbols")
> Reported-by: kernel test robot <lkp@...el.com>
> Closes: https://lore.kernel.org/r/202401290306.IV8rhJ02-lkp@intel.com/
> Signed-off-by: Javier Martinez Canillas <javierm@...hat.com>

Reviewed-by: Thomas Zimmermann <tzimmermann@...e.de>

> ---
>
> I don't have a sparc64 toolchain to test this patch, but I'm pretty sure
> that this is the correct fix for the linking error reported by the robot.
>
>   arch/sparc/video/Makefile | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/sparc/video/Makefile b/arch/sparc/video/Makefile
> index 6baddbd58e4d..d4d83f1702c6 100644
> --- a/arch/sparc/video/Makefile
> +++ b/arch/sparc/video/Makefile
> @@ -1,3 +1,3 @@
>   # SPDX-License-Identifier: GPL-2.0-only
>   
> -obj-$(CONFIG_FB) += fbdev.o
> +obj-$(CONFIG_FB_CORE) += fbdev.o

-- 
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)