reproduce (this is a W=1 build): git clone https://github.com/intel/lkp-tests.git ~/lkp-tests git remote add efi https://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git git fetch efi next git checkout efi/next b4 shazam https://lore.kernel.org/r/b9354882f45a0c600e65df4bacee2f1080c4ba89.1719219886.git.mchehab+huawei@kernel.org # 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 drivers/acpi/apei/