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| author | Sander Vanheule <sander@svanheule.net> | 2022-08-23 09:12:20 +0300 |
|---|---|---|
| committer | Yury Norov <yury.norov@gmail.com> | 2022-08-24 18:35:42 +0300 |
| commit | fbbc94d8486c6d683650269154c9a7d8897f35d7 (patch) | |
| tree | 42a3d4c2c2cbff9ed811cc415fcd569d2dcae2b3 /lib | |
| parent | 6afd9db630b037c7f0bc939368216512568de607 (diff) | |
| download | linux-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.c | 2 |
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) |