Hi Matthew, kernel test robot noticed the following build errors: [auto build test ERROR on mcgrof/modules-next] [also build test ERROR on powerpc/next powerpc/fixes masahiroy-kbuild/for-next masahiroy-kbuild/fixes linus/master v6.7-rc1 next-20231115] [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/Matthew-Maurer/export_report-Rehabilitate-script/20231116-030301 base: https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git modules-next patch link: https://lore.kernel.org/r/20231115185858.2110875-3-mmaurer%40google.com patch subject: [PATCH 2/3] modpost: Extended modversion support :::::: branch date: 7 hours ago :::::: commit date: 7 hours ago config: powerpc-allmodconfig (attached as .config) compiler: powerpc64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (attached as 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 | Closes: https://lore.kernel.org/oe-kbuild-all/202311161008.T2J9BoqP-lkp@intel.com/ All error/warnings (new ones prefixed by >>): arch/powerpc/kernel/module_64.c: In function 'dedotify_ext_version_names': >> arch/powerpc/kernel/module_64.c:373:9: error: implicit declaration of function 'bzero' [-Werror=implicit-function-declaration] 373 | bzero(&str_seq[out], size - out); | ^~~~~ >> arch/powerpc/kernel/module_64.c:373:9: warning: incompatible implicit declaration of built-in function 'bzero' [-Wbuiltin-declaration-mismatch] cc1: some warnings being treated as errors vim +/bzero +373 arch/powerpc/kernel/module_64.c ^1da177e4c3f41 arch/ppc64/kernel/module.c Linus Torvalds 2005-04-16 357 e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 358 static void dedotify_ext_version_names(char *str_seq, unsigned long size) e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 359 { e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 360 unsigned long out = 0; e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 361 unsigned long in; e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 362 char last = '\0'; e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 363 e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 364 for (in = 0; in < size; in++) { e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 365 if (last == '\0') e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 366 /* Skip all leading dots */ e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 367 if (str_seq[in] == '.') e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 368 continue; e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 369 last = str_seq[in]; e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 370 str_seq[out++] = last; e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 371 } e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 372 /* Zero the trailing portion of the names table for robustness */ e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 @373 bzero(&str_seq[out], size - out); e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 374 } e29ad08853ac5b arch/powerpc/kernel/module_64.c Matthew Maurer 2023-11-15 375 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki