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authorSander Vanheule <sander@svanheule.net>2022-08-23 09:12:20 +0300
committerYury Norov <yury.norov@gmail.com>2022-08-24 18:35:42 +0300
commitfbbc94d8486c6d683650269154c9a7d8897f35d7 (patch)
tree42a3d4c2c2cbff9ed811cc415fcd569d2dcae2b3 /lib
parent6afd9db630b037c7f0bc939368216512568de607 (diff)
downloadlinux-fbbc94d8486c6d683650269154c9a7d8897f35d7.tar.xz
lib/test_cpumask: fix cpu_possible_mask last test
Since cpumask_first() on the cpu_possible_mask must return at most nr_cpu_ids - 1 for a valid result, cpumask_last() cannot return anything larger than this value. As test_cpumask_weight() also verifies that the total weight of cpu_possible_mask must equal nr_cpu_ids, the last bit set in this mask must be at nr_cpu_ids - 1. Fixes: c41e8866c28c ("lib/test: introduce cpumask KUnit test suite") Link: https://lore.kernel.org/lkml/346cb279-8e75-24b0-7d12-9803f2b41c73@riseup.net/ Reported-by: Maíra Canal <mairacanal@riseup.net> Signed-off-by: Sander Vanheule <sander@svanheule.net> Tested-by: Maíra Canal <mairacanal@riseup.net> Reviewed-by: David Gow <davidgow@google.com> Acked-by: Yury Norov <yury.norov@gmail.com> Signed-off-by: Yury Norov <yury.norov@gmail.com>
Diffstat (limited to 'lib')
-rw-r--r--lib/test_cpumask.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/test_cpumask.c b/lib/test_cpumask.c
index 4ebf9f5805f3..4d353614d853 100644
--- a/lib/test_cpumask.c
+++ b/lib/test_cpumask.c
@@ -73,7 +73,7 @@ static void test_cpumask_first(struct kunit *test)
static void test_cpumask_last(struct kunit *test)
{
KUNIT_EXPECT_LE(test, nr_cpumask_bits, cpumask_last(&mask_empty));
- KUNIT_EXPECT_EQ(test, nr_cpumask_bits - 1, cpumask_last(cpu_possible_mask));
+ KUNIT_EXPECT_EQ(test, nr_cpu_ids - 1, cpumask_last(cpu_possible_mask));
}
static void test_cpumask_next(struct kunit *test)