device_sysfs.c:undefined reference to `utf16s_to_utf8s'

From: kbuild test robot
Date: Tue Jan 01 2019 - 18:43:51 EST

Hi Sinan,

FYI, the error/warning still remains.

tree: master
head: 28e8c4bc8eb483c22d977e147a0b98fc63efadf7
commit: 5d32a66541c4683456507481a0944ed2985e75c7 PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set
date: 13 days ago
config: i386-alldefconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
git checkout 5d32a66541c4683456507481a0944ed2985e75c7
# save the attached .config to linux build tree
make ARCH=i386

All errors (new ones prefixed by >>):

drivers/acpi/device_sysfs.o: In function `description_show':
>> device_sysfs.c:(.text+0x44b): undefined reference to `utf16s_to_utf8s'

0-DAY kernel test infrastructure Open Source Technology Center Intel Corporation

Attachment: .config.gz
Description: application/gzip