tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1c52283265a462a100ae63ddf58b4e5884acde86 commit: 835f442fdbce33a47a6bde356643fd7e3ef7ec1b irqchip/gic-v3-its: Limit memreserve cpuhp state lifetime date: 5 weeks ago config: arm-randconfig-r035-20220122 (https://download.01.org/0day-ci/archive/20220123/202201230454.RAEWzGlV-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 7b3d30728816403d1fd73cc5082e9fb761262bce) 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/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 835f442fdbce33a47a6bde356643fd7e3ef7ec1b # save the config file to linux build tree mkdir build_dir 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(a)intel.com&gt; All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: cpus_booted_once_mask >>> referenced by irq-gic-v3-its.c >>> irqchip/irq-gic-v3-its.o:(its_cpu_memreserve_lpi) in archive drivers/built-in.a