Hi Jacob, kernel test robot noticed the following build warnings: [auto build test WARNING on a84e8c05f58305dfa808bc5465c5175c29d7c9b6] url: https://github.com/intel-lab-lkp/linux/commits/Jacob-Keller/lib-packing-create-__pack-and-__unpack-variants-without-error-checking/20241108-040154 base: a84e8c05f58305dfa808bc5465c5175c29d7c9b6 patch link: https://lore.kernel.org/r/20241107-packing-pack-fields-and-ice-implementation-v3-3-27c566ac2436%40intel.com patch subject: [PATCH net-next v3 3/9] lib: packing: add pack_fields() and unpack_fields() config: x86_64-randconfig-121-20241108 (https://download.01.org/0day-ci/archive/20241108/202411081548.EnYrguKQ-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241108/202411081548.EnYrguKQ-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/202411081548.EnYrguKQ-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> lib/packing_test.c:412:1: sparse: sparse: symbol '__test_fields_buffer_sz' was not declared. Should it be static? >> lib/packing_test.c:412:1: sparse: sparse: symbol 'test_fields' was not declared. Should it be static? vim +/__test_fields_buffer_sz +412 lib/packing_test.c 411 > 412 DECLARE_PACKED_FIELDS_S(test_fields, sizeof(packed_buf_t)) = { 413 PACKED_FIELD(63, 61, struct test_data, field1), 414 PACKED_FIELD(60, 52, struct test_data, field2), 415 PACKED_FIELD(51, 28, struct test_data, field3), 416 PACKED_FIELD(27, 14, struct test_data, field4), 417 PACKED_FIELD(13, 9, struct test_data, field5), 418 PACKED_FIELD(8, 0, struct test_data, field6), 419 }; 420 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki