Hi Gioh, Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linux/master] [also build test WARNING on linus/master next-20210401] [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/Gioh-Kim/lib-string-Introduce-sysfs_streqcase/20210402-174251 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 5e46d1b78a03d52306f21f77a4e4a144b6d31486 config: mips-randconfig-r006-20210402 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project b23a314146956dd29b719ab537608ced736fc036) 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 # install mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://github.com/0day-ci/linux/commit/b18d0dc7264473a4023926c510a67adfd7eaf119 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Gioh-Kim/lib-string-Introduce-sysfs_streqcase/20210402-174251 git checkout b18d0dc7264473a4023926c510a67adfd7eaf119 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All warnings (new ones prefixed by >>): >> lib/string.c:723:6: warning: no previous prototype for function >> 'sysfs_streqcase' [-Wmissing-prototypes] bool sysfs_streqcase(const char *s1, const char *s2) ^ lib/string.c:723:1: note: declare 'static' if the function is not intended to be used outside of this translation unit bool sysfs_streqcase(const char *s1, const char *s2) ^ static 1 warning generated. vim +/sysfs_streqcase +723 lib/string.c 716 717 /** 718 * sysfs_streqcase - same to sysfs_streq and case insensitive 719 * @s1: one string 720 * @s2: another string 721 * 722 */ > 723 bool sysfs_streqcase(const char *s1, const char *s2) 724 { 725 while (*s1 && tolower(*s1) == tolower(*s2)) { 726 s1++; 727 s2++; 728 } 729 730 if (*s1 == *s2) 731 return true; 732 if (!*s1 && *s2 == '\n' && !s2[1]) 733 return true; 734 if (*s1 == '\n' && !s1[1] && !*s2) 735 return true; 736 return false; 737 } 738 EXPORT_SYMBOL(sysfs_streqcase); 739 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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