[PATCH v4 5/5] maple_tree: add a test checking storing null
Wei Yang
richard.weiyang at gmail.com
Tue Oct 22 16:32:47 PDT 2024
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@intel.com/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@intel.com/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 at intel.com>
>| Closes: https://lore.kernel.org/oe-kbuild-all/202410230105.UApdwd9S-lkp@intel.com/
>
>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.
> 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
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