From 6e6500e4e4a7f7431a6d7ab02a332ea5fca5c9fa Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Tue, 22 Apr 2025 15:07:41 -0600 Subject: [PATCH] kunit/overflow: Add tests for STACK_FLEX_ARRAY_SIZE() helper Add a couple of tests for new STACK_FLEX_ARRAY_SIZE() helper. Signed-off-by: Gustavo A. R. Silva Link: https://lore.kernel.org/r/c127631a03cdd7f59bfa091b9666a93bf69d0322.1745355442.git.gustavoars@kernel.org Signed-off-by: Kees Cook --- lib/tests/overflow_kunit.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/lib/tests/overflow_kunit.c b/lib/tests/overflow_kunit.c index 894691b4411a..19cb03b25dc5 100644 --- a/lib/tests/overflow_kunit.c +++ b/lib/tests/overflow_kunit.c @@ -1210,6 +1210,10 @@ static void DEFINE_FLEX_test(struct kunit *test) KUNIT_EXPECT_EQ(test, __struct_size(empty->array), 0); KUNIT_EXPECT_EQ(test, __member_size(empty->array), 0); + KUNIT_EXPECT_EQ(test, STACK_FLEX_ARRAY_SIZE(two, array), 2); + KUNIT_EXPECT_EQ(test, STACK_FLEX_ARRAY_SIZE(eight, array), 8); + KUNIT_EXPECT_EQ(test, STACK_FLEX_ARRAY_SIZE(empty, array), 0); + /* If __counted_by is not being used, array size will have the on-stack size. */ if (!IS_ENABLED(CONFIG_CC_HAS_COUNTED_BY)) array_size_override = 2 * sizeof(s16); -- 2.50.1