ERROR: modpost: "sysfb_primary_display" [drivers/video/fbdev/core/fb.ko] undefined!

From: kernel test robot

Date: Sat Jul 04 2026 - 03:38:58 EST


Hi Thomas,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 1e9cdc2ea15adf4a821eefedabf6c0c8cf0b6a55
commit: c5a8f13f1e476c90f4bc184a58751d3e7ff88f2b efi: Support EDID information
date: 7 months ago
config: loongarch-randconfig-r062-20260703 (https://download.01.org/0day-ci/archive/20260704/202607041524.s5d65uAl-lkp@xxxxxxxxx/config)
compiler: loongarch64-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260704/202607041524.s5d65uAl-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Fixes: c5a8f13f1e47 ("efi: Support EDID information")
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202607041524.s5d65uAl-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "sysfb_primary_display" [drivers/video/fbdev/core/fb.ko] undefined!

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki