Hi Samuel, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 0f5f12ac05f36f117e793656c3f560625e927f1b commit: 090a25ad97983720f52b11d9c5a8d1a446217c1d [2053/4884] leds: sun50i-a100: New driver for the A100 LED controller config: powerpc64-randconfig-r123-20231126 (https://download.01.org/0day-ci/archive/20231206/202312060311.Tnsv2fl2-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1) reproduce: (https://download.01.org/0day-ci/archive/20231206/202312060311.Tnsv2fl2-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/202312060311.Tnsv2fl2-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/leds/leds-sun50i-a100.c:309:12: error: call to __compiletime_assert_280 declared with 'error' attribute: FIELD_PREP: value too large for the field control = FIELD_PREP(LEDC_T01_TIMING_CTRL_REG_T1H, timing->t1h_ns / cycle_ns) | ^ include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP' __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ ^ include/linux/bitfield.h:68:3: note: expanded from macro '__BF_FIELD_CHECK' BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ? \ ^ include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:423:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ include/linux/compiler_types.h:416:4: note: expanded from macro '__compiletime_assert' prefix ## suffix(); \ ^ <scratch space>:54:1: note: expanded from here __compiletime_assert_280 ^ 1 error generated. vim +/error +309 drivers/leds/leds-sun50i-a100.c 301 302 static void sun50i_a100_ledc_set_timing(struct sun50i_a100_ledc *priv) 303 { 304 const struct sun50i_a100_ledc_timing *timing = &priv->timing; 305 unsigned long mod_freq = clk_get_rate(priv->mod_clk); 306 u32 cycle_ns = NSEC_PER_SEC / mod_freq; 307 u32 control; 308 > 309 control = FIELD_PREP(LEDC_T01_TIMING_CTRL_REG_T1H, timing->t1h_ns / cycle_ns) | 310 FIELD_PREP(LEDC_T01_TIMING_CTRL_REG_T1L, timing->t1l_ns / cycle_ns) | 311 FIELD_PREP(LEDC_T01_TIMING_CTRL_REG_T0H, timing->t0h_ns / cycle_ns) | 312 FIELD_PREP(LEDC_T01_TIMING_CTRL_REG_T0L, timing->t0l_ns / cycle_ns); 313 writel(control, priv->base + LEDC_T01_TIMING_CTRL_REG); 314 315 control = FIELD_PREP(LEDC_RESET_TIMING_CTRL_REG_TR, timing->treset_ns / cycle_ns) | 316 FIELD_PREP(LEDC_RESET_TIMING_CTRL_REG_LED_NUM, priv->max_addr); 317 writel(control, priv->base + LEDC_RESET_TIMING_CTRL_REG); 318 } 319 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
