Hi Shuai, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on rafael-pm/linux-next] [also build test ERROR on linux/master helgaas-pci/next linus/master v5.15 next-20211112] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Shuai-Xue/ACPI-Move-sdei_init-an... base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next config: arm64-defconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 11.2.0 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 # https://github.com/0day-ci/linux/commit/cce362fb2348d21a9c895fb66ed54ba01... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Shuai-Xue/ACPI-Move-sdei_init-and-ghes_init-ahead/20211114-203428 git checkout cce362fb2348d21a9c895fb66ed54ba012c8af91 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 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 >>): aarch64-linux-ld: drivers/acpi/pci_root.o: in function `acpi_pci_root_init': --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org