tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 6107040c99d5dfc920721c198d45ed2d639b113a commit: 2e691421a2c9e0462175fe98171afa632861b199 [9518/11094] PM / devfreq: rk3399_dmc: Block PMU during transitions config: arm-randconfig-r015-20220509 (https://download.01.org/0day-ci/archive/20220512/202205120335.LzAksOZI-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 18dd123c56754edf62c7042dcf23185c3727610f) 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=2e691421a2c9e0462175fe98171afa632861b199 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 2e691421a2c9e0462175fe98171afa632861b199 # 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 as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Note: the linux-next/master HEAD 6107040c99d5dfc920721c198d45ed2d639b113a builds fine. It may have been fixed somewhere. All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "rockchip_pmu_unblock" [drivers/devfreq/rk3399_dmc.ko] undefined! >> ERROR: modpost: "rockchip_pmu_block" [drivers/devfreq/rk3399_dmc.ko] undefined! -- 0-DAY CI Kernel Test Service https://01.org/lkp