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-20250306] [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: riscv-randconfig-r133-20250307 (https://download.01.org/0day-ci/archive/20250307/202503071016.2u0gPG0V-lkp@xxxxxxxxx/config) compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6) reproduce: (https://download.01.org/0day-ci/archive/20250307/202503071016.2u0gPG0V-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/202503071016.2u0gPG0V-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> lib/interval_tree_test.c:22:1: sparse: sparse: cast truncates bits from constant value (2b992ddfa23249d6 becomes a23249d6) lib/interval_tree_test.c: note: in included file (through include/linux/timex.h, include/linux/time32.h, include/linux/time.h, ...): arch/riscv/include/asm/timex.h:25:16: sparse: sparse: cast removes address space '__iomem' of expression arch/riscv/include/asm/timex.h:25:16: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned int [usertype] * @@ arch/riscv/include/asm/timex.h:25:16: sparse: expected void const volatile [noderef] __iomem *addr arch/riscv/include/asm/timex.h:25:16: sparse: got unsigned int [usertype] * arch/riscv/include/asm/timex.h:25:16: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned int [usertype] * @@ arch/riscv/include/asm/timex.h:25:16: sparse: expected void const volatile [noderef] __iomem *addr arch/riscv/include/asm/timex.h:25:16: sparse: got unsigned int [usertype] * arch/riscv/include/asm/timex.h:25:16: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned int [usertype] * @@ arch/riscv/include/asm/timex.h:25:16: sparse: expected void const volatile [noderef] __iomem *addr arch/riscv/include/asm/timex.h:25:16: sparse: got unsigned int [usertype] * arch/riscv/include/asm/timex.h:25:16: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned int [usertype] * @@ arch/riscv/include/asm/timex.h:25:16: sparse: expected void const volatile [noderef] __iomem *addr arch/riscv/include/asm/timex.h:25:16: sparse: got unsigned int [usertype] * vim +22 lib/interval_tree_test.c 20 21 __param(uint, max_endpoint, ~0, "Largest value for the interval's endpoint"); > 22 __param(ulong, seed, 3141592653589793238ULL, "Random seed"); 23 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki