Hi Luka, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on hwmon/hwmon-next] [also build test WARNING on lee-mfd/for-mfd-next pavel-linux-leds/for-next linus/master v5.9-rc6 next-20200925] [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-Puzzle-M801-board/20200926-215756 base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next config: nios2-allyesconfig (attached as .config) compiler: nios2-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/a453994a7710920ee06d179274597737ff37af27 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Luka-Kovacic/Add-support-for-the-iEi-Puzzle-M801-board/20200926-215756 git checkout a453994a7710920ee06d179274597737ff37af27 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nios2 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/hwmon/iei-wt61p803-puzzle-hwmon.c: In function 'iei_wt61p803_puzzle_hwmon_probe': >> drivers/hwmon/iei-wt61p803-puzzle-hwmon.c:457:17: warning: variable 'hwmon_dev' set but not used [-Wunused-but-set-variable] 457 | struct device *hwmon_dev; | ^~~~~~~~~ vim +/hwmon_dev +457 drivers/hwmon/iei-wt61p803-puzzle-hwmon.c 450 451 static int iei_wt61p803_puzzle_hwmon_probe(struct platform_device *pdev) 452 { 453 struct device *dev = &pdev->dev; 454 struct fwnode_handle *child; 455 struct iei_wt61p803_puzzle_hwmon *mcu_hwmon; 456 struct iei_wt61p803_puzzle *mcu = dev_get_drvdata(dev->parent); > 457 struct device *hwmon_dev; 458 int ret; 459 460 mcu_hwmon = devm_kzalloc(dev, sizeof(*mcu_hwmon), GFP_KERNEL); 461 if (!mcu_hwmon) 462 return -ENOMEM; 463 464 mcu_hwmon->response_buffer = devm_kzalloc(dev, 465 IEI_WT61P803_PUZZLE_BUF_SIZE, GFP_KERNEL); 466 if (!mcu_hwmon->response_buffer) 467 return -ENOMEM; 468 469 mcu_hwmon->mcu = mcu; 470 mutex_init(&mcu_hwmon->lock); 471 platform_set_drvdata(pdev, mcu_hwmon); 472 473 hwmon_dev = devm_hwmon_device_register_with_info(dev, 474 "iei_wt61p803_puzzle", 475 mcu_hwmon, 476 &iei_wt61p803_puzzle_chip_info, 477 NULL); 478 479 /* Control fans via PWM lines via Linux Kernel */ 480 if (IS_ENABLED(CONFIG_THERMAL)) { 481 device_for_each_child_node(dev, child) { 482 ret = iei_wt61p803_puzzle_enable_thermal_cooling_dev(dev, child, mcu_hwmon); 483 if (ret) { 484 dev_err(dev, "Enabling the PWM fan failed\n"); 485 fwnode_handle_put(child); 486 return ret; 487 } 488 } 489 } 490 return 0; 491 } 492 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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