Hi Zhou, kernel test robot noticed the following build errors: [auto build test ERROR on efi/next] [also build test ERROR on linus/master v6.13-rc3 next-20241220] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Zhou-Ding/efi-Fix-missing-efi_handover_entry-prototype/20241213-175109 base: https://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git next patch link: https://lore.kernel.org/r/20241212161517.443855-1-zhouding%40cmss.chinamobile.com patch subject: [PATCH] efi: Fix missing `efi_handover_entry` prototype config: x86_64-kexec (https://download.01.org/0day-ci/archive/20241222/202412220717.yUDPy17I-lkp@xxxxxxxxx/config) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241222/202412220717.yUDPy17I-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202412220717.yUDPy17I-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: efi_handover_entry >>> referenced by arch/x86/boot/compressed/efi_mixed.o:(efi64_stub_entry) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki