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Subject[PATCH v3 5/9] lib/test_cpumask: Add for_each_cpu_and(not) tests
Date
Following the recent introduction of for_each_andnot(), add some tests to
ensure for_each_cpu_and(not) results in the same as iterating over the
result of cpumask_and(not)().

Signed-off-by: Valentin Schneider <vschneid@redhat.com>
---
lib/test_cpumask.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/lib/test_cpumask.c b/lib/test_cpumask.c
index 81b17563fcb3..62d499394d8a 100644
--- a/lib/test_cpumask.c
+++ b/lib/test_cpumask.c
@@ -29,6 +29,19 @@
KUNIT_EXPECT_EQ((test), nr_cpu_ids - mask_weight, iter); \
} while (0)

+#define EXPECT_FOR_EACH_CPU_OP_EQ(test, op, mask1, mask2) \
+ do { \
+ const cpumask_t *m1 = (mask1); \
+ const cpumask_t *m2 = (mask2); \
+ int weight; \
+ int cpu, iter = 0; \
+ cpumask_##op(&mask_tmp, m1, m2); \
+ weight = cpumask_weight(&mask_tmp); \
+ for_each_cpu_##op(cpu, mask1, mask2) \
+ iter++; \
+ KUNIT_EXPECT_EQ((test), weight, iter); \
+ } while (0)
+
#define EXPECT_FOR_EACH_CPU_WRAP_EQ(test, mask) \
do { \
const cpumask_t *m = (mask); \
@@ -50,6 +63,7 @@

static cpumask_t mask_empty;
static cpumask_t mask_all;
+static cpumask_t mask_tmp;

static void test_cpumask_weight(struct kunit *test)
{
@@ -91,10 +105,15 @@ static void test_cpumask_iterators(struct kunit *test)
EXPECT_FOR_EACH_CPU_EQ(test, &mask_empty);
EXPECT_FOR_EACH_CPU_NOT_EQ(test, &mask_empty);
EXPECT_FOR_EACH_CPU_WRAP_EQ(test, &mask_empty);
+ EXPECT_FOR_EACH_CPU_OP_EQ(test, and, &mask_empty, &mask_empty);
+ EXPECT_FOR_EACH_CPU_OP_EQ(test, and, cpu_possible_mask, &mask_empty);
+ EXPECT_FOR_EACH_CPU_OP_EQ(test, andnot, &mask_empty, &mask_empty);

EXPECT_FOR_EACH_CPU_EQ(test, cpu_possible_mask);
EXPECT_FOR_EACH_CPU_NOT_EQ(test, cpu_possible_mask);
EXPECT_FOR_EACH_CPU_WRAP_EQ(test, cpu_possible_mask);
+ EXPECT_FOR_EACH_CPU_OP_EQ(test, and, cpu_possible_mask, cpu_possible_mask);
+ EXPECT_FOR_EACH_CPU_OP_EQ(test, andnot, cpu_possible_mask, &mask_empty);
}

static void test_cpumask_iterators_builtin(struct kunit *test)
--
2.31.1
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