linux-kernel - [PATCH] kfence: test: use kunit

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Message-Id: <20210922182541.1372400-1-elver@google.com>
Date:   Wed, 22 Sep 2021 20:25:41 +0200
From:   Marco Elver <elver@...gle.com>
To:     elver@...gle.com, Andrew Morton <akpm@...ux-foundation.org>
Cc:     Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Aleksandr Nogikh <nogikh@...gle.com>,
        Taras Madan <tarasmadan@...gle.com>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        kasan-dev@...glegroups.com, David Gow <davidgow@...gle.com>
Subject: [PATCH] kfence: test: use kunit_skip() to skip tests

Use the new kunit_skip() to skip tests if requirements were not met. It
makes it easier to see in KUnit's summary if there were skipped tests.

Signed-off-by: Marco Elver <elver@...gle.com>
---
 mm/kfence/kfence_test.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/mm/kfence/kfence_test.c b/mm/kfence/kfence_test.c
index f1690cf54199..695030c1fff8 100644
--- a/mm/kfence/kfence_test.c
+++ b/mm/kfence/kfence_test.c
@@ -32,6 +32,11 @@
 #define arch_kfence_test_address(addr) (addr)
 #endif
 
+#define KFENCE_TEST_REQUIRES(test, cond) do {			\
+	if (!(cond))						\
+		kunit_skip((test), "Test requires: " #cond);	\
+} while (0)
+
 /* Report as observed from console. */
 static struct {
 	spinlock_t lock;
@@ -555,8 +560,7 @@ static void test_init_on_free(struct kunit *test)
 	};
 	int i;
 
-	if (!IS_ENABLED(CONFIG_INIT_ON_FREE_DEFAULT_ON))
-		return;
+	KFENCE_TEST_REQUIRES(test, IS_ENABLED(CONFIG_INIT_ON_FREE_DEFAULT_ON));
 	/* Assume it hasn't been disabled on command line. */
 
 	setup_test_cache(test, size, 0, NULL);
@@ -603,10 +607,8 @@ static void test_gfpzero(struct kunit *test)
 	char *buf1, *buf2;
 	int i;
 
-	if (CONFIG_KFENCE_SAMPLE_INTERVAL > 100) {
-		kunit_warn(test, "skipping ... would take too long\n");
-		return;
-	}
+	/* Skip if we think it'd take too long. */
+	KFENCE_TEST_REQUIRES(test, CONFIG_KFENCE_SAMPLE_INTERVAL <= 100);
 
 	setup_test_cache(test, size, 0, NULL);
 	buf1 = test_alloc(test, size, GFP_KERNEL, ALLOCATE_ANY);
-- 
2.33.0.464.g1972c5931b-goog