Hi, kernel test robot noticed the following build errors:
[auto build test ERROR on next-20260327] url: https://github.com/intel-lab-lkp/linux/commits/david-laight-linux-gmail-com/fortify-replace-__compiletime_lessthan-with-statically_true/20260331-041123 base: next-20260327 patch link: https://lore.kernel.org/r/20260330132003.3379-3-david.laight.linux%40gmail.com patch subject: [PATCH next 2/3] fortify: Optimise strnlen() config: x86_64-buildonly-randconfig-001-20260331 (https://download.01.org/0day-ci/archive/20260401/[email protected]/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260401/[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 symbol: __fortify_undefined >>> referenced by fortify-string.h:290 (include/linux/fortify-string.h:290) >>> vmlinux.o:(parse_early_param) >>> referenced by fortify-string.h:218 (include/linux/fortify-string.h:218) >>> vmlinux.o:(parse_early_param) >>> referenced by fortify-string.h:290 (include/linux/fortify-string.h:290) >>> vmlinux.o:(setup_boot_config) >>> referenced 2103 more times -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
