Hi Luka, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on hwmon/hwmon-next] [also build test WARNING on v5.9] [cannot apply to pavel-linux-leds/for-next lee-mfd/for-mfd-next next-20201016] [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/Luka-Kovacic/Add-support-for-the-iEi-WT61P803-PUZZLE-MCU/20201020-062048 base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next config: ia64-randconfig-r002-20201020 (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 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 # https://github.com/0day-ci/linux/commit/855e7cca9db335136d09555f9983d7245fca1f4b git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Luka-Kovacic/Add-support-for-the-iEi-WT61P803-PUZZLE-MCU/20201020-062048 git checkout 855e7cca9db335136d09555f9983d7245fca1f4b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 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/mfd/iei-wt61p803-puzzle.c:311:5: warning: no previous prototype for 'iei_wt61p803_puzzle_buzzer' [-Wmissing-prototypes] 311 | int iei_wt61p803_puzzle_buzzer(struct iei_wt61p803_puzzle *mcu, bool long_beep) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/iei_wt61p803_puzzle_buzzer +311 drivers/mfd/iei-wt61p803-puzzle.c 310 > 311 int iei_wt61p803_puzzle_buzzer(struct iei_wt61p803_puzzle *mcu, bool long_beep) 312 { 313 unsigned char *resp_buf = mcu->response_buffer; 314 unsigned char buzzer_cmd[4] = {}; 315 size_t reply_size = 0; 316 int ret; 317 318 buzzer_cmd[0] = IEI_WT61P803_PUZZLE_CMD_HEADER_START; 319 buzzer_cmd[1] = IEI_WT61P803_PUZZLE_CMD_FUNCTION_SINGLE; 320 buzzer_cmd[2] = long_beep ? '3' : '2'; /* Buzzer 1.5 / 0.5 second beep */ 321 322 mutex_lock(&mcu->lock); 323 ret = iei_wt61p803_puzzle_write_command(mcu, buzzer_cmd, sizeof(buzzer_cmd), 324 resp_buf, &reply_size); 325 if (ret) 326 goto exit; 327 328 if (reply_size != 3) { 329 ret = -EIO; 330 goto exit; 331 } 332 333 if (!(resp_buf[0] == IEI_WT61P803_PUZZLE_CMD_HEADER_START && 334 resp_buf[1] == IEI_WT61P803_PUZZLE_CMD_RESPONSE_OK && 335 resp_buf[2] == IEI_WT61P803_PUZZLE_CHECKSUM_RESPONSE_OK)) { 336 ret = -EPROTO; 337 goto exit; 338 } 339 exit: 340 mutex_unlock(&mcu->lock); 341 return ret; 342 } 343 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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