tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   aaa11ce2ffc84166d11c4d2ac88c3fcf75425fbd
commit: 8df2f97de29bc5980d7108bd21bb0b1b424cd464 [9605/9680] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git
config: arm-randconfig-r024-20220923
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=8df2f97de29bc5980d7108bd21bb0b1b424cd464
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 8df2f97de29bc5980d7108bd21bb0b1b424cd464
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: devm_iio_channel_get_all
   >>> referenced by mt6370-charger.c:892 (drivers/power/supply/mt6370-charger.c:892)
   >>>               drivers/power/supply/mt6370-charger.o:(mt6370_chg_probe) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: iio_read_channel_processed
   >>> referenced by mt6370-charger.c:353 (drivers/power/supply/mt6370-charger.c:353)
   >>>               drivers/power/supply/mt6370-charger.o:(mt6370_chg_mivr_dwork_func) in archive vmlinux.a

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for SERIAL_SUNPLUS
   Depends on [n]: TTY [=n] && HAS_IOMEM [=y] && (ARCH_SUNPLUS [=y] || COMPILE_TEST [=y])
   Selected by [y]:
   - SOC_SP7021 [=y] && ARCH_SUNPLUS [=y]
   WARNING: unmet direct dependencies detected for SERIAL_SUNPLUS_CONSOLE
   Depends on [n]: TTY [=n] && HAS_IOMEM [=y] && SERIAL_SUNPLUS [=y]
   Selected by [y]:
   - SOC_SP7021 [=y] && ARCH_SUNPLUS [=y]

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp