For extra context, log the contents of the masks under test. This should help with finding out why a certain test fails. Link: https://lore.kernel.org/lkml/CABVgOSkPXBc-PWk1zBZRQ_Tt+Sz1ruFHBj3ixojymZF=Vi4tpQ@xxxxxxxxxxxxxx/ Suggested-by: David Gow <davidgow@xxxxxxxxxx> Signed-off-by: Sander Vanheule <sander@xxxxxxxxxxxxx> Reviewed-by: David Gow <davidgow@xxxxxxxxxx> --- lib/cpumask_kunit.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/lib/cpumask_kunit.c b/lib/cpumask_kunit.c index 4d353614d853..0f8059a5e93b 100644 --- a/lib/cpumask_kunit.c +++ b/lib/cpumask_kunit.c @@ -51,6 +51,10 @@ static cpumask_t mask_empty; static cpumask_t mask_all; +#define STR_MASK(m) #m +#define TEST_CPUMASK_PRINT(test, mask) \ + kunit_info(test, "%s = '%*pbl'\n", STR_MASK(mask), nr_cpumask_bits, cpumask_bits(mask)) + static void test_cpumask_weight(struct kunit *test) { KUNIT_EXPECT_TRUE(test, cpumask_empty(&mask_empty)); @@ -103,6 +107,9 @@ static void test_cpumask_iterators_builtin(struct kunit *test) /* Ensure the dynamic masks are stable while running the tests */ cpu_hotplug_disable(); + TEST_CPUMASK_PRINT(test, cpu_online_mask); + TEST_CPUMASK_PRINT(test, cpu_present_mask); + EXPECT_FOR_EACH_CPU_BUILTIN_EQ(test, online); EXPECT_FOR_EACH_CPU_BUILTIN_EQ(test, present); @@ -114,6 +121,9 @@ static int test_cpumask_init(struct kunit *test) cpumask_clear(&mask_empty); cpumask_setall(&mask_all); + TEST_CPUMASK_PRINT(test, &mask_all); + TEST_CPUMASK_PRINT(test, cpu_possible_mask); + return 0; } -- 2.37.2
