linux-kernel - Re: [drm-drm-misc:drm-misc-next 1/2] undefined reference to `screen

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Message-ID: <d1152ce5-90a8-0ca4-74ff-1cf96c1213ec@redhat.com>
Date:   Thu, 22 Jul 2021 06:49:05 +0200
From:   Javier Martinez Canillas <javierm@...hat.com>
To:     Thomas Zimmermann <tzimmermann@...e.de>,
        kernel test robot <lkp@...el.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: Re: [drm-drm-misc:drm-misc-next 1/2] undefined reference to
 `screen_info'

On 7/21/21 8:04 PM, Javier Martinez Canillas wrote:
> Hello Thomas,
> 
> On 7/21/21 8:01 PM, Thomas Zimmermann wrote:
>> Hi
>>
>> Am 21.07.21 um 14:44 schrieb kernel test robot:
>>> tree:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
>>> head:   8633ef82f101c040427b57d4df7b706261420b94
>>> commit: d391c58271072d0b0fad93c82018d495b2633448 [1/2] drivers/firmware: move x86 Generic System Framebuffers support
>>> config: parisc-randconfig-r025-20210720 (attached as .config)
>>> compiler: hppa64-linux-gcc (GCC) 10.3.0
>>> reproduce (this is a W=1 build):
>>>          wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>>>          chmod +x ~/bin/make.cross
>>>          git remote add drm-drm-misc git://anongit.freedesktop.org/drm/drm-misc
>>>          git fetch --no-tags drm-drm-misc drm-misc-next
>>>          git checkout d391c58271072d0b0fad93c82018d495b2633448
>>>          # save the attached .config to linux build tree
>>>          mkdir build_dir
>>>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross O=build_dir ARCH=parisc SHELL=/bin/bash
>>>
>>> If you fix the issue, kindly add following tag as appropriate
>>> Reported-by: kernel test robot <lkp@...el.com>
>>>
>>> All errors (new ones prefixed by >>):
>>>
>>>     hppa64-linux-ld: drivers/firmware/sysfb.o: in function `sysfb_init':
>>>>> (.init.text+0x8): undefined reference to `screen_info'
>>>>> hppa64-linux-ld: (.init.text+0xc): undefined reference to `screen_info'
>>
>> This could be related to the recent rework of the system-framebuffer 
>> code. I think the config has to be updated to select SYSFB and 
>> SYSFB_SIMPLEFB. [1]
>>
> 
> Yes, it is. I've already answered to another similar report:
> 
> https://lkml.org/lkml/2021/7/21/575
> 
> I will propose a fix soon.
>

Posted https://lore.kernel.org/patchwork/patch/1465623/ that should solve
this issue and others reported by the kernel test robot.

I've tested that with this patch, the option it's correctly enabled for
x86, arm64 and riscv while not enabled on the problematic architectures.

This should be merged in drm-misc-next as well. Sorry for missing before
that would cause issues on some architectures.

Best regards, -- 
Javier Martinez Canillas
Linux Engineering
Red Hat