Commit 1292c0ecb1ca ("mm/damon/core: validate ranges in
damon_set_regions()") disallowed passing zero or negative size input
ranges to damon_set_regions(). Add kunit test cases for those inputs.
Signed-off-by: SJ Park <[email protected]>
---
mm/damon/tests/core-kunit.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/mm/damon/tests/core-kunit.h b/mm/damon/tests/core-kunit.h
index befc1196d6d60..ac15393a7935b 100644
--- a/mm/damon/tests/core-kunit.h
+++ b/mm/damon/tests/core-kunit.h
@@ -592,6 +592,20 @@ static void damon_test_set_regions(struct kunit *test)
{.start = 25, .end = 40},
{.start = 44, .end = 50},
}, 3, 0);
+ /* Zero size regions should return -EINVAL. */
+ damon_test_set_regions_for(test,
+ (struct damon_addr_range[]){}, 0,
+ (struct damon_addr_range[]){
+ {.start = 42, .end = 42},
+ }, 1, 1,
+ (struct damon_addr_range[]){}, 0, -EINVAL);
+ /* Negative size regions should return -EINVAL. */
+ damon_test_set_regions_for(test,
+ (struct damon_addr_range[]){}, 0,
+ (struct damon_addr_range[]){
+ {.start = 42, .end = 21},
+ }, 1, 1,
+ (struct damon_addr_range[]){}, 0, -EINVAL);
}
static void damon_test_update_monitoring_result(struct kunit *test)
--
2.47.3
