[linux-next:master 14008/14339] ld.lld: error: undefined symbol: utf8_casefold

[linux-next:master 14008/14339] ld.lld: error: undefined symbol: utf8_casefold

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   911483b25612c8bc32a706ba940738cc43299496
commit: 83af16a78d190b1a698f0acf47402dc6c76e4991 [14008/14339] bcachefs: Redo bch2_dirent_init_name()
config: hexagon-randconfig-002-20250604 (https://download.01.org/0day-ci/archive/20250605/202506050235.2X7f2Xqe-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250605/202506050235.2X7f2Xqe-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202506050235.2X7f2Xqe-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: utf8_casefold
   >>> referenced by dirent.c:265 (fs/bcachefs/dirent.c:265)
   >>>               fs/bcachefs/dirent.o:(bch2_dirent_init_name) in archive vmlinux.a
   >>> referenced by dirent.c:265 (fs/bcachefs/dirent.c:265)
   >>>               fs/bcachefs/dirent.o:(bch2_dirent_init_name) in archive vmlinux.a

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