Hi Tiezhu, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on hnaz-mm/master] [also build test WARNING on linus/master v5.17-rc6 next-20220225] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Tiezhu-Yang/MIPS-Modify-mem-and-memmap-parameter/20220228-212554 base: https://github.com/hnaz/linux-mm master config: mips-randconfig-r025-20220228 (https://download.01.org/0day-ci/archive/20220228/202202282330.uO0sH1Bk-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://github.com/0day-ci/linux/commit/8e3bd7f4c0a4003c328ef2d816454dd50810b974 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Tiezhu-Yang/MIPS-Modify-mem-and-memmap-parameter/20220228-212554 git checkout 8e3bd7f4c0a4003c328ef2d816454dd50810b974 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash arch/mips/kernel/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> arch/mips/kernel/setup.c:350:42: warning: format specifies type 'long long' but the argument has type 'phys_addr_t' (aka 'unsigned int') [-Wformat] pr_notice("Memory limited to %lldMB\n", memory_limit >> 20); ~~~~ ^~~~~~~~~~~~~~~~~~ %u include/linux/printk.h:509:36: note: expanded from macro 'pr_notice' printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ include/linux/printk.h:446:60: note: expanded from macro 'printk' #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ include/linux/printk.h:418:19: note: expanded from macro 'printk_index_wrap' _p_func(_fmt, ##__VA_ARGS__); \ ~~~~ ^~~~~~~~~~~ 1 warning generated. vim +350 arch/mips/kernel/setup.c 343 344 static int __init early_parse_mem(char *p) 345 { 346 if (!p) 347 return 1; 348 349 memory_limit = memparse(p, &p) & PAGE_MASK; > 350 pr_notice("Memory limited to %lldMB\n", memory_limit >> 20); 351 352 return 0; 353 } 354 early_param("mem", early_parse_mem); 355 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx