diff mbox series

[v2,1/3] KVM: selftests: Tell the compiler that code after TEST_FAIL() is unreachable

Message ID 20220928184853.1681781-2-dmatlack@google.com (mailing list archive)
State New, archived
Headers show
Series KVM: selftests: Fix nx_huge_pages_test when TDP is disabled | expand

Commit Message

David Matlack Sept. 28, 2022, 6:48 p.m. UTC 
Add __builtin_unreachable() to TEST_FAIL() so that the compiler knows
that any code after a TEST_FAIL() is unreachable.

Signed-off-by: David Matlack <dmatlack@google.com>
---
 tools/testing/selftests/kvm/include/test_util.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/kvm/include/test_util.h b/tools/testing/selftests/kvm/include/test_util.h
index 5c5a88180b6c..befc754ce9b3 100644
--- a/tools/testing/selftests/kvm/include/test_util.h
+++ b/tools/testing/selftests/kvm/include/test_util.h
@@ -63,8 +63,10 @@  void test_assert(bool exp, const char *exp_str,
 		    #a, #b, #a, (unsigned long) __a, #b, (unsigned long) __b); \
 } while (0)
 
-#define TEST_FAIL(fmt, ...) \
-	TEST_ASSERT(false, fmt, ##__VA_ARGS__)
+#define TEST_FAIL(fmt, ...) do { \
+	TEST_ASSERT(false, fmt, ##__VA_ARGS__); \
+	__builtin_unreachable(); \
+} while (0)
 
 size_t parse_size(const char *size);