tree: https://github.com/ceph/ceph-client.git testing head: 7b864d005b1f7f6a144420e180891b6401078407 commit: 3adeefbfca0fd57cc943b7ec0330385f48041f0c [7/9] [DO NOT MERGE] iov_iter: Fix iter_xarray_get_pages{,_alloc}() config: riscv-randconfig-r034-20220611 (https://download.01.org/0day-ci/archive/20220611/202206112305.4DdsErK8-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project ff4abe755279a3a47cc416ef80dbc900d9a98a19) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv-linux-gnu # https://github.com/ceph/ceph-client/commit/3adeefbfca0fd57cc943b7ec0330385f48041f0c git remote add ceph-client https://github.com/ceph/ceph-client.git git fetch --no-tags ceph-client testing git checkout 3adeefbfca0fd57cc943b7ec0330385f48041f0c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> lib/iov_iter.c:1464:9: warning: comparison of distinct pointer types ('typeof (nr * ((1UL) << (12)) - offset) *' (aka 'unsigned long *') and 'typeof (maxsize) *' (aka 'unsigned int *')) [-Wcompare-distinct-pointer-types] return min(nr * PAGE_SIZE - offset, maxsize); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:45:19: note: expanded from macro 'min' #define min(x, y) __careful_cmp(x, y, <) ^~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:36:24: note: expanded from macro '__careful_cmp' __builtin_choose_expr(__safe_cmp(x, y), \ ^~~~~~~~~~~~~~~~ include/linux/minmax.h:26:4: note: expanded from macro '__safe_cmp' (__typecheck(x, y) && __no_side_effects(x, y)) ^~~~~~~~~~~~~~~~~ include/linux/minmax.h:20:28: note: expanded from macro '__typecheck' (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1))) ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~ lib/iov_iter.c:1628:9: warning: comparison of distinct pointer types ('typeof (nr * ((1UL) << (12)) - offset) *' (aka 'unsigned long *') and 'typeof (maxsize) *' (aka 'unsigned int *')) [-Wcompare-distinct-pointer-types] return min(nr * PAGE_SIZE - offset, maxsize); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:45:19: note: expanded from macro 'min' #define min(x, y) __careful_cmp(x, y, <) ^~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:36:24: note: expanded from macro '__careful_cmp' __builtin_choose_expr(__safe_cmp(x, y), \ ^~~~~~~~~~~~~~~~ include/linux/minmax.h:26:4: note: expanded from macro '__safe_cmp' (__typecheck(x, y) && __no_side_effects(x, y)) ^~~~~~~~~~~~~~~~~ include/linux/minmax.h:20:28: note: expanded from macro '__typecheck' (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1))) ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~ 2 warnings generated. vim +1464 lib/iov_iter.c 1430 1431 static ssize_t iter_xarray_get_pages(struct iov_iter *i, 1432 struct page **pages, size_t maxsize, 1433 unsigned maxpages, size_t *_start_offset) 1434 { 1435 unsigned nr, offset; 1436 pgoff_t index, count; 1437 size_t size = maxsize; 1438 loff_t pos; 1439 1440 if (!size || !maxpages) 1441 return 0; 1442 1443 pos = i->xarray_start + i->iov_offset; 1444 index = pos >> PAGE_SHIFT; 1445 offset = pos & ~PAGE_MASK; 1446 *_start_offset = offset; 1447 1448 count = 1; 1449 if (size > PAGE_SIZE - offset) { 1450 size -= PAGE_SIZE - offset; 1451 count += size >> PAGE_SHIFT; 1452 size &= ~PAGE_MASK; 1453 if (size) 1454 count++; 1455 } 1456 1457 if (count > maxpages) 1458 count = maxpages; 1459 1460 nr = iter_xarray_populate_pages(pages, i->xarray, index, count); 1461 if (nr == 0) 1462 return 0; 1463 > 1464 return min(nr * PAGE_SIZE - offset, maxsize); 1465 } 1466 -- 0-DAY CI Kernel Test Service https://01.org/lkp
