Hi William, I love your patch! Perhaps something to improve: [auto build test WARNING on stm32/stm32-next] [cannot apply to linus/master linux/master v5.7-rc3 next-20200430] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/William-Breathitt-Gray/Introduce-the-Counter-character-device-interface/20200430-051734 base: https://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32.git stm32-next reproduce: # apt-get install sparse # sparse version: v0.6.1-191-gc51a0382-dirty make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/counter/104-quad-8.c:700:56: sparse: sparse: mixing different enum types: >> drivers/counter/104-quad-8.c:700:56: sparse: unsigned int enum counter_count_function >> drivers/counter/104-quad-8.c:700:56: sparse: unsigned int enum quad8_count_function -- >> drivers/counter/stm32-lptimer-cnt.c:573:24: sparse: sparse: mixing different enum types: >> drivers/counter/stm32-lptimer-cnt.c:573:24: sparse: unsigned int enum counter_count_function >> drivers/counter/stm32-lptimer-cnt.c:573:24: sparse: unsigned int enum stm32_lptim_cnt_function vim +700 drivers/counter/104-quad-8.c 693 694 static int quad8_function_write(struct counter_device *counter, 695 struct counter_count *count, 696 enum counter_count_function function) 697 { 698 struct quad8_iio *const priv = counter->priv; 699 const int id = count->id; > 700 const enum quad8_count_function cnt_function = function; 701 unsigned int *const quadrature_mode = priv->quadrature_mode + id; 702 unsigned int *const scale = priv->quadrature_scale + id; 703 unsigned int mode_cfg = priv->count_mode[id] << 1; 704 unsigned int *const synchronous_mode = priv->synchronous_mode + id; 705 const unsigned int idr_cfg = priv->index_polarity[id] << 1; 706 const int base_offset = priv->base + 2 * id + 1; 707 708 if (cnt_function == QUAD8_COUNT_FUNCTION_PULSE_DIRECTION) { 709 *quadrature_mode = 0; 710 711 /* Quadrature scaling only available in quadrature mode */ 712 *scale = 0; 713 714 /* Synchronous function not supported in non-quadrature mode */ 715 if (*synchronous_mode) { 716 *synchronous_mode = 0; 717 /* Disable synchronous function mode */ 718 outb(QUAD8_CTR_IDR | idr_cfg, base_offset); 719 } 720 } else { 721 *quadrature_mode = 1; 722 723 switch (cnt_function) { 724 case QUAD8_COUNT_FUNCTION_QUADRATURE_X1: 725 *scale = 0; 726 mode_cfg |= QUAD8_CMR_QUADRATURE_X1; 727 break; 728 case QUAD8_COUNT_FUNCTION_QUADRATURE_X2: 729 *scale = 1; 730 mode_cfg |= QUAD8_CMR_QUADRATURE_X2; 731 break; 732 case QUAD8_COUNT_FUNCTION_QUADRATURE_X4: 733 *scale = 2; 734 mode_cfg |= QUAD8_CMR_QUADRATURE_X4; 735 break; 736 default: return -EINVAL; 737 } 738 } 739 740 /* Load mode configuration to Counter Mode Register */ 741 outb(QUAD8_CTR_CMR | mode_cfg, base_offset); 742 743 return 0; 744 } 745 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
