Hi Zijun, kernel test robot noticed the following build errors:
[auto build test ERROR on 0af2f6be1b4281385b618cb86ad946eded089ac8] url: https://github.com/intel-lab-lkp/linux/commits/Zijun-Hu/lib-string-Improve-strstarts-performance/20250407-212519 base: 0af2f6be1b4281385b618cb86ad946eded089ac8 patch link: https://lore.kernel.org/r/20250407-imp_str_perf-v1-1-ed95d52964a4%40quicinc.com patch subject: [PATCH 1/2] lib/string: Improve strstarts() performance config: riscv-randconfig-002-20250408 (https://download.01.org/0day-ci/archive/20250408/[email protected]/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project 92c93f5286b9ff33f27ff694d2dc33da1c07afdd) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250408/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All errors (new ones prefixed by >>): >> ld.lld: error: undefined hidden symbol: __efistub_strstarts >>> referenced by gop.c:119 (drivers/firmware/efi/libstub/gop.c:119) >>> gop.stub.o:(__efistub_efi_parse_option_graphics) in archive ./drivers/firmware/efi/libstub/lib.a >>> referenced by gop.c:42 (drivers/firmware/efi/libstub/gop.c:42) >>> gop.stub.o:(__efistub_efi_parse_option_graphics) in archive ./drivers/firmware/efi/libstub/lib.a >>> referenced by gop.c:42 (drivers/firmware/efi/libstub/gop.c:42) >>> gop.stub.o:(__efistub_efi_parse_option_graphics) in archive ./drivers/firmware/efi/libstub/lib.a >>> referenced 3 more times -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
