kasan: test: make use of kunit_skip()

Make use of the recently added kunit_skip() to skip tests, as it permits
TAP parsers to recognize if a test was deliberately skipped.
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

lib/test_kasan.c

@@ -111,17 +111,13 @@ static void kasan_test_exit(struct kunit *test)
 } while (0)
 
 #define KASAN_TEST_NEEDS_CONFIG_ON(test, config) do {			\
-	if (!IS_ENABLED(config)) {					\
-		kunit_info((test), "skipping, " #config " required");	\
-		return;							\
-	}								\
+	if (!IS_ENABLED(config))					\
+		kunit_skip((test), "Test requires " #config "=y");	\
 } while (0)
 
 #define KASAN_TEST_NEEDS_CONFIG_OFF(test, config) do {			\
-	if (IS_ENABLED(config)) {					\
-		kunit_info((test), "skipping, " #config " enabled");	\
-		return;							\
-	}								\
+	if (IS_ENABLED(config))						\
+		kunit_skip((test), "Test requires " #config "=n");	\
 } while (0)
 
 static void kmalloc_oob_right(struct kunit *test)