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| author | Sander Vanheule <sander@svanheule.net> | 2022-08-23 08:12:19 +0200 |
|---|---|---|
| committer | Yury Norov <yury.norov@gmail.com> | 2022-08-24 08:35:42 -0700 |
| commit | 6afd9db630b037c7f0bc939368216512568de607 (patch) | |
| tree | 95f8304afb5c82088259adc8e6f25a4d6087e591 /lib | |
| parent | 1c23f9e627a7b412978b4e852793c5e3c3efc555 (diff) | |
| download | linux-6afd9db630b037c7f0bc939368216512568de607.tar.bz2 | |
lib/test_cpumask: drop cpu_possible_mask full test
When the number of CPUs that can possibly be brought online is known at
boot time, e.g. when HOTPLUG is disabled, nr_cpu_ids may be smaller than
NR_CPUS. In that case, cpu_possible_mask would not be completely filled,
and cpumask_full(cpu_possible_mask) can return false for valid system
configurations.
Without this test, cpu_possible_mask contents are still constrained by
a check on cpumask_weight(), as well as tests in test_cpumask_first(),
test_cpumask_last(), test_cpumask_next(), and test_cpumask_iterators().
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>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/test_cpumask.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/lib/test_cpumask.c b/lib/test_cpumask.c index a31a1622f1f6..4ebf9f5805f3 100644 --- a/lib/test_cpumask.c +++ b/lib/test_cpumask.c @@ -54,7 +54,6 @@ static cpumask_t mask_all; static void test_cpumask_weight(struct kunit *test) { KUNIT_EXPECT_TRUE(test, cpumask_empty(&mask_empty)); - KUNIT_EXPECT_TRUE(test, cpumask_full(cpu_possible_mask)); KUNIT_EXPECT_TRUE(test, cpumask_full(&mask_all)); KUNIT_EXPECT_EQ(test, 0, cpumask_weight(&mask_empty)); |