undefined reference to `utf8s_to_utf16s'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   d2da77f431ac49b5763b88751a75f70daa46296c
commit: f83705a51275ed29117d46e1d68e8b16dcb40507 Driver: VMBus: Add Devicetree support
date:   7 months ago
config: x86_64-buildonly-randconfig-003-20231127 (https://download.01.org/0day-ci/archive/20231127/202311270303.oEoMVSFp-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231127/202311270303.oEoMVSFp-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/202311270303.oEoMVSFp-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   ld: vmlinux.o: in function `rndis_filter_set_device_mac':
>> (.text+0x9b5d37): undefined reference to `utf8s_to_utf16s'
>> ld: (.text+0x9b5d75): undefined reference to `utf8s_to_utf16s'

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