Hi Billy, kernel test robot noticed the following build warnings: [auto build test WARNING on groeck-staging/hwmon-next] [also build test WARNING on linus/master v6.5-rc6 next-20230817] [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/Billy-Tsai/dt-bindings-hwmon-Support-Aspeed-g6-PWM-TACH-Control/20230817-200427 base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next patch link: https://lore.kernel.org/r/20230817120029.221484-3-billy_tsai%40aspeedtech.com patch subject: [PATCH v7 2/2] hwmon: (aspeed-g6-pwm-tacho): Support for ASPEED g6 PWM/Fan tach config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230818/202308180900.0ecFnDBI-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce: (https://download.01.org/0day-ci/archive/20230818/202308180900.0ecFnDBI-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202308180900.0ecFnDBI-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/hwmon/aspeed-g6-pwm-tach.c: In function 'aspeed_tach_create_fan': >> drivers/hwmon/aspeed-g6-pwm-tach.c:431:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 431 | int ret, count; | ^~~ vim +/ret +431 drivers/hwmon/aspeed-g6-pwm-tach.c 426 427 static int aspeed_tach_create_fan(struct device *dev, 428 struct aspeed_pwm_tach_data *priv) 429 { 430 u8 *tach_ch; > 431 int ret, count; 432 433 count = of_property_count_u8_elems(dev->of_node, "aspeed,fan-tach-ch"); 434 if (count < 1) 435 return -EINVAL; 436 tach_ch = devm_kcalloc(dev, count, sizeof(*tach_ch), GFP_KERNEL); 437 if (!tach_ch) 438 return -ENOMEM; 439 ret = of_property_read_u8_array(dev->of_node, "aspeed,fan-tach-ch", 440 tach_ch, count); 441 442 aspeed_present_fan_tach(priv, tach_ch, count); 443 444 return 0; 445 } 446 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
