[PATCH 2/7] kfence: kunit: skip when no pool is available

[Jia He <justin.he@arm.com>]

When KFENCE is compiled in but disabled at boot (KFENCE_SAMPLE_INTERVAL=0)
or __kfence_pool is not allocated, every kfence kunit case fails with
-EINVAL.

Use kunit_skip() so they are reported as skipped instead.

To: Alexander Potapenko <glider@google.com>
To: Marco Elver <elver@google.com>
To: Dmitry Vyukov <dvyukov@google.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: kasan-dev@googlegroups.com
Cc: linux-mm@kvack.org

Signed-off-by: Jia He <justin.he@arm.com>
---
 mm/kfence/kfence_test.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/mm/kfence/kfence_test.c b/mm/kfence/kfence_test.c
index 5725a367246d..e376329dd621 100644
--- a/mm/kfence/kfence_test.c
+++ b/mm/kfence/kfence_test.c
@@ -822,8 +822,10 @@ static int test_init(struct kunit *test)
 	unsigned long flags;
 	int i;
 
-	if (!__kfence_pool)
-		return -EINVAL;
+	if (!__kfence_pool) {
+		kunit_skip(test, "kfence pool not allocated or kfence not enabled");
+		return 0;
+	}
 
 	spin_lock_irqsave(&observed.lock, flags);
 	for (i = 0; i < ARRAY_SIZE(observed.lines); i++)
-- 
2.34.1