Hi Ed, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tip/master] [also build test WARNING on linus/master linux/master platform-drivers-x86/for-next v5.9 next-20201021] [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/Ed-Wildgoose/x86-Conditional-init-of-pcengines-leds-keys-gpios/20201022-054433 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 2ee263eb855963c3ce8d04191c8a92e13e6096f2 config: x86_64-randconfig-a011-20201021 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 2eac8ce820e6c9fe51bf93b55cb8a781b8b9fc7c) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/f8923b8d1bb4907e1138ee7b92f01a7f767e54b8 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ed-Wildgoose/x86-Conditional-init-of-pcengines-leds-keys-gpios/20201022-054433 git checkout f8923b8d1bb4907e1138ee7b92f01a7f767e54b8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/platform/x86/pcengines-apuv2.c:231:5: warning: no previous prototype for function 'cmp_version' [-Wmissing-prototypes] int cmp_version(const char *base, const char *test) ^ drivers/platform/x86/pcengines-apuv2.c:231:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int cmp_version(const char *base, const char *test) ^ static 1 warning generated. vim +/cmp_version +231 drivers/platform/x86/pcengines-apuv2.c 230 > 231 int cmp_version(const char *base, const char *test) 232 { 233 int i; 234 int oct_base[4], oct_test[4]; 235 int matched_base, matched; 236 237 matched_base = sscanf(base, "v%4d.%4d.%4d.%4d", 238 &oct_base[0], &oct_base[1], 239 &oct_base[2], &oct_base[3]); 240 matched = sscanf(test, "v%4d.%4d.%4d.%4d", 241 &oct_test[0], &oct_test[1], 242 &oct_test[2], &oct_test[3]); 243 244 /* opinionated: match as lower if we can't parse test version */ 245 if (matched == 0) 246 return -1; 247 248 if (matched_base < matched) 249 matched = matched_base; 250 251 for (i = 0; i < matched; i++) { 252 if (oct_test[i] > oct_base[i]) 253 return 1; 254 else if (oct_test[i] < oct_base[i]) 255 return -1; 256 } 257 258 return 0; 259 } 260 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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