Hi Nuno, kernel test robot noticed the following build warnings: [auto build test WARNING on 9703c672af8dd3573c76ce509dfff26bf6c4768d] url: https://github.com/intel-lab-lkp/linux/commits/Nuno-S-via-B4-Relay/dt-binbings-hwmon-Document-the-LTC4283-Swap-Controller/20250903-180813 base: 9703c672af8dd3573c76ce509dfff26bf6c4768d patch link: https://lore.kernel.org/r/20250903-ltc4283-support-v2-2-6bce091510bf%40analog.com patch subject: [PATCH v2 2/3] hwmon: ltc4283: Add support for the LTC4283 Swap Controller config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20250905/202509050501.MXDrcrZA-lkp@xxxxxxxxx/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250905/202509050501.MXDrcrZA-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/202509050501.MXDrcrZA-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/hwmon/ltc4283.c:595:10: warning: result of comparison of constant 65536 with expression of type 'u16' (aka 'unsigned short') is always false [-Wtautological-constant-out-of-range-compare] 595 | if (tmp == BIT(16)) | ~~~ ^ ~~~~~~~ 1 warning generated. vim +595 drivers/hwmon/ltc4283.c 586 587 static int __ltc4283_write_in_history(struct ltc4283_hwmon *st, 588 u32 reg, long lowest, u32 fs) 589 { 590 __be16 __raw; 591 u16 tmp; 592 int ret; 593 594 tmp = DIV_ROUND_CLOSEST(BIT(16) * lowest, fs); > 595 if (tmp == BIT(16)) 596 tmp = U16_MAX; 597 598 __raw = cpu_to_be16(tmp); 599 600 ret = regmap_bulk_write(st->map, reg, &__raw, sizeof(__raw)); 601 if (ret) 602 return ret; 603 604 tmp = 0; 605 return regmap_bulk_write(st->map, reg + 1, &tmp, sizeof(tmp)); 606 } 607 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
