tree: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git bleeding-edge head: a33520709645543f108361fe21fa9434a351c4e9 commit: a20d0ef97abf486a917aff066c457bdb930425af [8608/8615] powercap/drivers/dtpm: Add API for dynamic thermal power management config: arm-allyesconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?id=a20d0ef97abf486a917aff066c457bdb930425af git remote add pm https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git git fetch --no-tags pm bleeding-edge git checkout a20d0ef97abf486a917aff066c457bdb930425af # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): arm-linux-gnueabi-ld: drivers/powercap/dtpm.o: in function `__dtpm_rebalance_weight': >> dtpm.c:(.text+0x3e0): undefined reference to `__aeabi_uldivmod' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org