2022-02-23 13:47:11

by andrey.konovalov

[permalink] [raw]
Subject: [PATCH mm] another fix for "kasan: improve vmalloc tests"

From: Andrey Konovalov <[email protected]>

set_memory_rw/ro() are not exported to be used in modules and thus
cannot be used in KUnit-compatible KASAN tests.

Drop the checks that rely on these functions.

Reported-by: kernel test robot <[email protected]>
Signed-off-by: Andrey Konovalov <[email protected]>
---
lib/test_kasan.c | 6 ------
1 file changed, 6 deletions(-)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index ef99d81fe8b3..448194bbc41d 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -1083,12 +1083,6 @@ static void vmalloc_helpers_tags(struct kunit *test)
KUNIT_ASSERT_TRUE(test, is_vmalloc_addr(ptr));
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, vmalloc_to_page(ptr));

- /* Make sure vmalloc'ed memory permissions can be changed. */
- rv = set_memory_ro((unsigned long)ptr, 1);
- KUNIT_ASSERT_GE(test, rv, 0);
- rv = set_memory_rw((unsigned long)ptr, 1);
- KUNIT_ASSERT_GE(test, rv, 0);
-
vfree(ptr);
}

--
2.25.1