Hi Nuno, kernel test robot noticed the following build warnings: [auto build test WARNING on groeck-staging/hwmon-next] [also build test WARNING on linus/master v6.7-rc2 next-20231124] [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/Nuno-Sa-via-B4-Relay/hwmon-ltc4282-add-support-for-the-LTC4282-chip/20231124-231842 base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next patch link: https://lore.kernel.org/r/20231124-ltc4282-support-v2-2-952bf926f83c%40analog.com patch subject: [PATCH v2 2/2] hwmon: ltc4282: add support for the LTC4282 chip config: i386-randconfig-r081-20231125 (https://download.01.org/0day-ci/archive/20231125/202311250203.ZhAso6Dj-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231125/202311250203.ZhAso6Dj-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/202311250203.ZhAso6Dj-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/hwmon/ltc4282.c:347:6: warning: no previous prototype for function 'ltc4282_round_rate' [-Wmissing-prototypes] long ltc4282_round_rate(struct clk_hw *hw, unsigned long rate, ^ drivers/hwmon/ltc4282.c:347:1: note: declare 'static' if the function is not intended to be used outside of this translation unit long ltc4282_round_rate(struct clk_hw *hw, unsigned long rate, ^ static >> drivers/hwmon/ltc4282.c:356:15: warning: no previous prototype for function 'ltc4282_recalc_rate' [-Wmissing-prototypes] unsigned long ltc4282_recalc_rate(struct clk_hw *hw, unsigned long parent) ^ drivers/hwmon/ltc4282.c:356:1: note: declare 'static' if the function is not intended to be used outside of this translation unit unsigned long ltc4282_recalc_rate(struct clk_hw *hw, unsigned long parent) ^ static 2 warnings generated. vim +/ltc4282_round_rate +347 drivers/hwmon/ltc4282.c 346 > 347 long ltc4282_round_rate(struct clk_hw *hw, unsigned long rate, 348 unsigned long *parent_rate) 349 { 350 int idx = find_closest(rate, ltc4282_out_rates, 351 ARRAY_SIZE(ltc4282_out_rates)); 352 353 return ltc4282_out_rates[idx]; 354 } 355 > 356 unsigned long ltc4282_recalc_rate(struct clk_hw *hw, unsigned long parent) 357 { 358 struct ltc4282_state *st = container_of(hw, struct ltc4282_state, 359 clk_hw); 360 u32 clkdiv; 361 int ret; 362 363 ret = regmap_read(st->map, LTC4282_CLK_DIV, &clkdiv); 364 if (ret) 365 return 0; 366 367 clkdiv = FIELD_GET(LTC4282_CLKOUT_MASK, clkdiv); 368 if (!clkdiv) 369 return 0; 370 if (clkdiv == LTC4282_CLKOUT_INT) 371 return LTC4282_CLKOUT_SYSTEM; 372 373 return LTC4282_CLKOUT_CNV; 374 } 375 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
