Hi Jiaxun, kernel test robot noticed the following build warnings: [auto build test WARNING on 2b84edefcad14934796fad37b16512b6a2ca467e] url: https://github.com/intel-lab-lkp/linux/commits/Jiaxun-Yang/MIPS-generic-Do-__dt_setup_arch-in-prom_init/20240507-170413 base: 2b84edefcad14934796fad37b16512b6a2ca467e patch link: https://lore.kernel.org/r/20240507-cm_probe-v1-5-11dbfd598f3c%40flygoat.com patch subject: [PATCH 5/5] MIPS: cm: Probe GCR address from DeviceTree config: mips-randconfig-r113-20240508 (https://download.01.org/0day-ci/archive/20240508/202405081255.MGvZEuuc-lkp@xxxxxxxxx/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 0ab4458df0688955620b72cc2c72a32dffad3615) reproduce: (https://download.01.org/0day-ci/archive/20240508/202405081255.MGvZEuuc-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/202405081255.MGvZEuuc-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> arch/mips/kernel/mips-cm.c:193:13: warning: result of comparison of constant 18446744073709551615 with expression of type 'unsigned long' is always false [-Wtautological-constant-out-of-range-compare] 193 | if (*cmgcr == OF_BAD_ADDR) | ~~~~~~ ^ ~~~~~~~~~~~ 1 warning generated. vim +193 arch/mips/kernel/mips-cm.c 183 184 static int __init mips_cm_fdt_scan(unsigned long node, const char *uname, 185 int depth, void *data) 186 { 187 unsigned long *cmgcr = data; 188 189 if (!of_flat_dt_is_compatible(node, "mti,mips-cm")) 190 return 0; 191 192 *cmgcr = of_flat_dt_translate_address(node); > 193 if (*cmgcr == OF_BAD_ADDR) 194 *cmgcr = 0; 195 196 return 0; 197 } 198 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki