tree: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git bleeding-edge head: 9db71e8e3027d2026be1ea9b6cfce8fd7216fb01 commit: f521a6e687d139e5d33a3d92f5ba4cd0a825cc66 [41/47] ACPI: APEI: explicit init HEST and GHES in apci_init() config: arm64-randconfig-r004-20220214 (https://download.01.org/0day-ci/archive/20220215/202202151504.jWpZGPaH-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 37f422f4ac31c8b8041c6b62065263314282dab6) 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 arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?id=f521a6e687d139e5d33a3d92f5ba4cd0a825cc66 git remote add rafael-pm https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git git fetch --no-tags rafael-pm bleeding-edge git checkout f521a6e687d139e5d33a3d92f5ba4cd0a825cc66 # 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=arm64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: ghes_notify_sea >>> referenced by acpi.c >>> kernel/acpi.o:(apei_claim_sea) in archive arch/arm64/built-in.a -- >> ld.lld: error: undefined symbol: ghes_disable >>> referenced by bus.c >>> acpi/bus.o:(acpi_bus_init) in archive drivers/built-in.a >>> referenced by bus.c >>> acpi/bus.o:(acpi_bus_init) in archive drivers/built-in.a Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for ACPI_APEI_GHES Depends on ACPI && ACPI_APEI Selected by - ARM_SDE_INTERFACE && ARM64 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org