reproduce (this is a W=1 build): # https://github.com/avpatel/linux/commit/1246727818573869b528326a8ea0b79b7c430763 git remote add avpatel https://github.com/avpatel/linux.git git fetch --no-tags avpatel riscv_defconfig_v1 git checkout 1246727818573869b528326a8ea0b79b7c430763 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/acpi/apei/