Hi Thomas, kernel test robot noticed the following build warnings: [auto build test WARNING on 15e2f65f2ecfeb8e39315522e2b5cfdc5651fc10] url: https://github.com/intel-lab-lkp/linux/commits/Thomas-Wei-schuh/of-address-Add-kunit-test-for-__of_address_resource_bounds/20250127-165902 base: 15e2f65f2ecfeb8e39315522e2b5cfdc5651fc10 patch link: https://lore.kernel.org/r/20250127-of-address-overflow-v2-1-61b5046044e9%40linutronix.de patch subject: [PATCH v2] of: address: Add kunit test for __of_address_resource_bounds() config: hexagon-randconfig-001-20250127 (https://download.01.org/0day-ci/archive/20250127/202501271803.wd0vg8zR-lkp@xxxxxxxxx/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250127/202501271803.wd0vg8zR-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/202501271803.wd0vg8zR-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/of/of_test.c:140:42: warning: implicit conversion from 'long long' to 'resource_size_t' (aka 'unsigned int') changes value from 4294971390 to 4094 [-Wconstant-conversion] 135 | { | ~ 136 | .start = 0x1000, 137 | .size = 0xffffffff, 138 | .ret = resource_size_32bit() ? -EOVERFLOW : 0, 139 | .res_start = 0x1000, 140 | .res_end = resource_size_32bit() ? 0 : 0x100000ffe, | ^~~~~~~~~~~ drivers/of/of_test.c:133:42: warning: implicit conversion from 'long long' to 'resource_size_t' (aka 'unsigned int') changes value from 4294967296 to 0 [-Wconstant-conversion] 128 | { | ~ 129 | .start = 0x100000000ULL, 130 | .size = 1, 131 | .ret = resource_size_32bit() ? -EOVERFLOW : 0, 132 | .res_start = resource_size_32bit() ? 0 : 0x100000000, 133 | .res_end = resource_size_32bit() ? 0 : 0x100000000, | ^~~~~~~~~~~ drivers/of/of_test.c:132:44: warning: implicit conversion from 'long long' to 'resource_size_t' (aka 'unsigned int') changes value from 4294967296 to 0 [-Wconstant-conversion] 128 | { | ~ 129 | .start = 0x100000000ULL, 130 | .size = 1, 131 | .ret = resource_size_32bit() ? -EOVERFLOW : 0, 132 | .res_start = resource_size_32bit() ? 0 : 0x100000000, | ^~~~~~~~~~~ 3 warnings generated. vim +140 drivers/of/of_test.c 74 75 static const struct of_address_resource_bounds_case of_address_resource_bounds_cases[] = { 76 { 77 .start = 0, 78 .size = 0, 79 .ret = 0, 80 .res_start = 0, 81 .res_end = -1, 82 }, 83 { 84 .start = 0, 85 .size = 0x1000, 86 .ret = 0, 87 .res_start = 0, 88 .res_end = 0xfff, 89 }, 90 { 91 .start = 0x1000, 92 .size = 0, 93 .ret = 0, 94 .res_start = 0x1000, 95 .res_end = 0xfff, 96 }, 97 { 98 .start = 0x1000, 99 .size = 0x1000, 100 .ret = 0, 101 .res_start = 0x1000, 102 .res_end = 0x1fff, 103 }, 104 { 105 .start = 1, 106 .size = RESOURCE_SIZE_MAX, 107 .ret = 0, 108 .res_start = 1, 109 .res_end = RESOURCE_SIZE_MAX, 110 }, 111 { 112 .start = RESOURCE_SIZE_MAX, 113 .size = 1, 114 .ret = 0, 115 .res_start = RESOURCE_SIZE_MAX, 116 .res_end = RESOURCE_SIZE_MAX, 117 }, 118 { 119 .start = 2, 120 .size = RESOURCE_SIZE_MAX, 121 .ret = -EOVERFLOW, 122 }, 123 { 124 .start = RESOURCE_SIZE_MAX, 125 .size = 2, 126 .ret = -EOVERFLOW, 127 }, 128 { 129 .start = 0x100000000ULL, 130 .size = 1, 131 .ret = resource_size_32bit() ? -EOVERFLOW : 0, 132 .res_start = resource_size_32bit() ? 0 : 0x100000000, 133 .res_end = resource_size_32bit() ? 0 : 0x100000000, 134 }, 135 { 136 .start = 0x1000, 137 .size = 0xffffffff, 138 .ret = resource_size_32bit() ? -EOVERFLOW : 0, 139 .res_start = 0x1000, > 140 .res_end = resource_size_32bit() ? 0 : 0x100000ffe, 141 }, 142 }; 143 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
