[kbuild-all] [djwong-xfs:zero-initialize-pmem-5.16 18/28] fs/xfs/libxfs/xfs_ialloc_btree.c:552:53: sparse: sparse: cast truncates bits from constant value (100000000 becomes 0)

tree: https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git zero-initialize-pmem-5.16 head: 34b80c3d1203abd5fd64242ef25898c7d64166ca commit: c0ef00d1e835bfd24399aaa069b2b608dd60b485 [18/28] xfs: check absolute maximum nlevels for each btree type config: csky-randconfig-s032-20211008 (attached as .config) compiler: csky-linux-gcc (GCC) 11.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git/comm... git remote add djwong-xfs https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git git fetch --no-tags djwong-xfs zero-initialize-pmem-5.16 git checkout c0ef00d1e835bfd24399aaa069b2b608dd60b485 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=csky SHELL=/bin/bash fs/xfs/ mm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) fs/xfs/libxfs/xfs_ialloc_btree.c: note: in included file (through include/linux/bitops.h, include/linux/kernel.h, include/linux/list.h, ...): arch/csky/include/asm/bitops.h:77:9: sparse: sparse: preprocessor token __clear_bit redefined fs/xfs/libxfs/xfs_ialloc_btree.c: note: in included file (through arch/csky/include/asm/bitops.h, include/linux/bitops.h, include/linux/kernel.h, ...): include/asm-generic/bitops/non-atomic.h:34:9: sparse: this was the original definition vim +552 fs/xfs/libxfs/xfs_ialloc_btree.c 543 544 unsigned int 545 xfs_inobt_absolute_maxlevels(void) 546 { 547 unsigned int minrecs[2]; 548 549 xfs_btree_absolute_minrecs(minrecs, 0, sizeof(xfs_inobt_rec_t), 550 sizeof(xfs_inobt_key_t) + sizeof(xfs_inobt_ptr_t)); 551 553 } 554 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org