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

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   6589b3d76db2d6adbf8f2084c303fb24252a0dc6
commit: c5a8f13f1e476c90f4bc184a58751d3e7ff88f2b efi: Support EDID information
date:   8 weeks ago
config: loongarch-randconfig-002-20260211 (https://download.01.org/0day-ci/archive/20260211/202602111543.Do4nkY5l-lkp@xxxxxxxxx/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9b8addffa70cee5b2acc5454712d9cf78ce45710)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260211/202602111543.Do4nkY5l-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
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602111543.Do4nkY5l-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