Hi Wei, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.14-rc5 next-20250304] [cannot apply to akpm-mm/mm-nonmm-unstable akpm-mm/mm-everything] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Wei-Yang/lib-rbtree-enable-userland-test-suite-for-rbtree-related-data-structure/20250304-092345 base: linus/master patch link: https://lore.kernel.org/r/20250304011952.29182-4-richard.weiyang%40gmail.com patch subject: [PATCH 3/7] lib/rbtree: add random seed config: i386-buildonly-randconfig-004-20250305 (https://download.01.org/0day-ci/archive/20250305/202503051009.iTp8hlJy-lkp@xxxxxxxxx/config) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250305/202503051009.iTp8hlJy-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/202503051009.iTp8hlJy-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> lib/rbtree_test.c:17:22: warning: implicit conversion from 'unsigned long long' to 'ulong' (aka 'unsigned long') changes value from 3141592653589793238 to 2721204694 [-Wconstant-conversion] 17 | __param(ulong, seed, 3141592653589793238ULL, "Random seed"); | ~~~~ ^~~~~~~~~~~~~~~~~~~~~~ lib/rbtree_test.c:10:21: note: expanded from macro '__param' 10 | static type name = init; \ | ~~~~ ^~~~ 1 warning generated. -- >> lib/interval_tree_test.c:22:22: warning: implicit conversion from 'unsigned long long' to 'ulong' (aka 'unsigned long') changes value from 3141592653589793238 to 2721204694 [-Wconstant-conversion] 22 | __param(ulong, seed, 3141592653589793238ULL, "Random seed"); | ~~~~ ^~~~~~~~~~~~~~~~~~~~~~ lib/interval_tree_test.c:10:21: note: expanded from macro '__param' 10 | static type name = init; \ | ~~~~ ^~~~ 1 warning generated. vim +17 lib/rbtree_test.c 8 9 #define __param(type, name, init, msg) \ 10 static type name = init; \ 11 module_param(name, type, 0444); \ 12 MODULE_PARM_DESC(name, msg); 13 14 __param(int, nnodes, 100, "Number of nodes in the rb-tree"); 15 __param(int, perf_loops, 1000, "Number of iterations modifying the rb-tree"); 16 __param(int, check_loops, 100, "Number of iterations modifying and verifying the rb-tree"); > 17 __param(ulong, seed, 3141592653589793238ULL, "Random seed"); 18 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
