Hi John, kernel test robot noticed the following build warnings: [auto build test WARNING on adc52dd4078067fabf1431036ba180eafd8a7eee] url: https://github.com/intel-lab-lkp/linux/commits/John-Erasmus-Mari-Geronimo/hwmon-max31827-refactor-enum-chips-to-chip-info/20250108-162739 base: adc52dd4078067fabf1431036ba180eafd8a7eee patch link: https://lore.kernel.org/r/20250108082531.15467-2-johnerasmusmari.geronimo%40analog.com patch subject: [PATCH 1/3] hwmon: (max31827) refactor enum chips to chip info config: hexagon-randconfig-001-20250109 (https://download.01.org/0day-ci/archive/20250109/202501091228.9APcsnSs-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250109/202501091228.9APcsnSs-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/202501091228.9APcsnSs-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/hwmon/max31827.c:93:40: warning: tentative definition of variable with internal linkage has incomplete non-array type 'const struct max31827_chip_info' [-Wtentative-definition-incomplete-type] static const struct max31827_chip_info max31827; ^ drivers/hwmon/max31827.c:93:21: note: forward declaration of 'struct max31827_chip_info' static const struct max31827_chip_info max31827; ^ drivers/hwmon/max31827.c:94:40: warning: tentative definition of variable with internal linkage has incomplete non-array type 'const struct max31827_chip_info' [-Wtentative-definition-incomplete-type] static const struct max31827_chip_info max31828; ^ drivers/hwmon/max31827.c:93:21: note: forward declaration of 'struct max31827_chip_info' static const struct max31827_chip_info max31827; ^ drivers/hwmon/max31827.c:95:40: warning: tentative definition of variable with internal linkage has incomplete non-array type 'const struct max31827_chip_info' [-Wtentative-definition-incomplete-type] static const struct max31827_chip_info max31829; ^ drivers/hwmon/max31827.c:93:21: note: forward declaration of 'struct max31827_chip_info' static const struct max31827_chip_info max31827; ^ drivers/hwmon/max31827.c:96:40: warning: tentative definition of variable with internal linkage has incomplete non-array type 'const struct max31827_chip_info' [-Wtentative-definition-incomplete-type] static const struct max31827_chip_info max31875; ^ drivers/hwmon/max31827.c:93:21: note: forward declaration of 'struct max31827_chip_info' static const struct max31827_chip_info max31827; ^ drivers/hwmon/max31827.c:602:1: error: expected expression static const struct max31827_chip_info max31829 = { ^ drivers/hwmon/max31827.c:677:23: error: expected '}' MODULE_LICENSE("GPL"); ^ drivers/hwmon/max31827.c:598:51: note: to match this '{' static const struct max31827_chip_info max31828 = { ^ drivers/hwmon/max31827.c:677:23: error: expected ';' after top level declarator MODULE_LICENSE("GPL"); ^ ; 4 warnings and 3 errors generated. vim +93 drivers/hwmon/max31827.c 91 92 struct max31827_state; > 93 static const struct max31827_chip_info max31827; 94 static const struct max31827_chip_info max31828; 95 static const struct max31827_chip_info max31829; 96 static const struct max31827_chip_info max31875; 97 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki