* Wei Yang <richard.weiyang@xxxxxxxxx> [241022 19:32]: > On Wed, Oct 23, 2024 at 01:37:50AM +0800, kernel test robot wrote: > >Hi Wei, > > > >kernel test robot noticed the following build warnings: > > > >[auto build test WARNING on akpm-mm/mm-nonmm-unstable] > >[also build test WARNING on akpm-mm/mm-everything linus/master v6.12-rc4 next-20241022] > >[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/maple_tree-print-empty-for-an-empty-tree-on-mt_dump/20241019-103832 > >base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable > >patch link: https://lore.kernel.org/r/20241019023716.4516-6-richard.weiyang%40gmail.com > >patch subject: [PATCH v4 5/5] maple_tree: add a test checking storing null > >config: x86_64-randconfig-123-20241022 (https://download.01.org/0day-ci/archive/20241023/202410230105.UApdwd9S-lkp@xxxxxxxxx/config) > >compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) > >reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241023/202410230105.UApdwd9S-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/202410230105.UApdwd9S-lkp@xxxxxxxxx/ > > > >sparse warnings: (new ones prefixed by >>) > >>> lib/test_maple_tree.c:1456:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *entry @@ got void [noderef] __rcu *ma_root @@ > > lib/test_maple_tree.c:1456:9: sparse: expected void const *entry > > lib/test_maple_tree.c:1456:9: sparse: got void [noderef] __rcu *ma_root > >>> lib/test_maple_tree.c:1456:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *entry @@ got void [noderef] __rcu *ma_root @@ > > lib/test_maple_tree.c:1456:9: sparse: expected void const *entry > > lib/test_maple_tree.c:1456:9: sparse: got void [noderef] __rcu *ma_root > > lib/test_maple_tree.c:1468:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *entry @@ got void [noderef] __rcu *ma_root @@ > > lib/test_maple_tree.c:1468:9: sparse: expected void const *entry > > lib/test_maple_tree.c:1468:9: sparse: got void [noderef] __rcu *ma_root > > lib/test_maple_tree.c:1468:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *entry @@ got void [noderef] __rcu *ma_root @@ > > lib/test_maple_tree.c:1468:9: sparse: expected void const *entry > > lib/test_maple_tree.c:1468:9: sparse: got void [noderef] __rcu *ma_root > > > >vim +1456 lib/test_maple_tree.c > > > > 1389 > > 1390 static noinline void __init check_store_null(struct maple_tree *mt) > > 1391 { > > 1392 MA_STATE(mas, mt, 0, ULONG_MAX); > > 1393 > > 1394 /* > > 1395 * Store NULL at range [0, ULONG_MAX] to an empty tree should result > > 1396 * in an empty tree > > 1397 */ > > 1398 mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE); > > 1399 mas_lock(&mas); > > 1400 mas_store_gfp(&mas, NULL, GFP_KERNEL); > > 1401 MT_BUG_ON(mt, !mtree_empty(mt)); > > 1402 mas_unlock(&mas); > > 1403 mtree_destroy(mt); > > 1404 > > 1405 /* > > 1406 * Store NULL at any range to an empty tree should result in an empty > > 1407 * tree > > 1408 */ > > 1409 mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE); > > 1410 mas_lock(&mas); > > 1411 mas_set_range(&mas, 3, 10); > > 1412 mas_store_gfp(&mas, NULL, GFP_KERNEL); > > 1413 MT_BUG_ON(mt, !mtree_empty(mt)); > > 1414 mas_unlock(&mas); > > 1415 mtree_destroy(mt); > > 1416 > > 1417 /* > > 1418 * Store NULL at range [0, ULONG_MAX] to a single entry tree should > > 1419 * result in an empty tree > > 1420 */ > > 1421 mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE); > > 1422 mas_lock(&mas); > > 1423 mas_set(&mas, 0); > > 1424 mas_store_gfp(&mas, &mas, GFP_KERNEL); > > 1425 mas_set_range(&mas, 0, ULONG_MAX); > > 1426 mas_store_gfp(&mas, NULL, GFP_KERNEL); > > 1427 MT_BUG_ON(mt, !mtree_empty(mt)); > > 1428 mas_unlock(&mas); > > 1429 mtree_destroy(mt); > > 1430 > > 1431 /* > > 1432 * Store NULL at range [0, n] to a single entry tree should > > 1433 * result in an empty tree > > 1434 */ > > 1435 mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE); > > 1436 mas_lock(&mas); > > 1437 mas_set(&mas, 0); > > 1438 mas_store_gfp(&mas, &mas, GFP_KERNEL); > > 1439 mas_set_range(&mas, 0, 5); > > 1440 mas_store_gfp(&mas, NULL, GFP_KERNEL); > > 1441 MT_BUG_ON(mt, !mtree_empty(mt)); > > 1442 mas_unlock(&mas); > > 1443 mtree_destroy(mt); > > 1444 > > 1445 /* > > 1446 * Store NULL at range [m, n] where m > 0 to a single entry tree > > 1447 * should still be a single entry tree > > 1448 */ > > 1449 mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE); > > 1450 mas_lock(&mas); > > 1451 mas_set(&mas, 0); > > 1452 mas_store_gfp(&mas, &mas, GFP_KERNEL); > > 1453 mas_set_range(&mas, 2, 5); > > 1454 mas_store_gfp(&mas, NULL, GFP_KERNEL); > > 1455 MT_BUG_ON(mt, mtree_empty(mt)); > >> 1456 MT_BUG_ON(mt, xa_is_node(mt->ma_root)); > > Thanks. > > Will fix it to xa_is_node(mas_root(&mas)) in next version. By the looks of the bot output, there are quite a lot of existing cases of this in the test code. > > > > 1457 mas_unlock(&mas); > > 1458 mtree_destroy(mt); > > 1459 > > 1460 /* > > 1461 * Store NULL at range [0, ULONG_MAX] to a tree with node should > > 1462 * result in an empty tree > > 1463 */ > > 1464 mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE); > > 1465 mas_lock(&mas); > > 1466 mas_set_range(&mas, 1, 3); > > 1467 mas_store_gfp(&mas, &mas, GFP_KERNEL); > > 1468 MT_BUG_ON(mt, !xa_is_node(mt->ma_root)); > > 1469 mas_set_range(&mas, 0, ULONG_MAX); > > 1470 mas_store_gfp(&mas, NULL, GFP_KERNEL); > > 1471 MT_BUG_ON(mt, !mtree_empty(mt)); > > 1472 mas_unlock(&mas); > > 1473 mtree_destroy(mt); > > 1474 } > > 1475 > > > >-- > >0-DAY CI Kernel Test Service > >https://github.com/intel/lkp-tests/wiki > > -- > Wei Yang > Help you, Help me
