reproduce (this is a W=1 build): git clone https://github.com/intel/lkp-tests.git ~/lkp-tests # https://github.com/norov/linux/commit/d2ce21c762c90540ac4114fe274ffa7bb0627c4c git remote add norov https://github.com/norov/linux git fetch --no-tags norov cpumask_next_wrap5 git checkout d2ce21c762c90540ac4114fe274ffa7bb0627c4c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=i386 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-18 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash kernel/