damos_test_commit_filter() is written for only a single test case.
Split out the core logic of damos_test_commit_filter() as a general one
so that it can be reused for multiple test cases.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 mm/damon/tests/core-kunit.h | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/mm/damon/tests/core-kunit.h b/mm/damon/tests/core-kunit.h
index ae97886137dc..31f90cfcabf3 100644
--- a/mm/damon/tests/core-kunit.h
+++ b/mm/damon/tests/core-kunit.h
@@ -497,6 +497,15 @@ static void damos_test_new_filter(struct kunit *test)
 	damos_destroy_filter(filter);
 }
 
+static void damos_test_commit_filter_for(struct kunit *test,
+		struct damos_filter *dst, struct damos_filter *src)
+{
+	damos_commit_filter(dst, src);
+	KUNIT_EXPECT_EQ(test, dst->type, src->type);
+	KUNIT_EXPECT_EQ(test, dst->matching, src->matching);
+	KUNIT_EXPECT_EQ(test, dst->allow, src->allow);
+}
+
 static void damos_test_commit_filter(struct kunit *test)
 {
 	struct damos_filter src_filter = {
@@ -509,10 +518,7 @@ static void damos_test_commit_filter(struct kunit *test)
 		.allow = false,
 	};
 
-	damos_commit_filter(&dst_filter, &src_filter);
-	KUNIT_EXPECT_EQ(test, dst_filter.type, src_filter.type);
-	KUNIT_EXPECT_EQ(test, dst_filter.matching, src_filter.matching);
-	KUNIT_EXPECT_EQ(test, dst_filter.allow, src_filter.allow);
+	damos_test_commit_filter_for(test, &dst_filter, &src_filter);
 }
 
 static void damos_test_filter_out(struct kunit *test)
-- 
2.47.3