diff --git a/arch/s390/lib/test_kprobes.c b/arch/s390/lib/test_kprobes.c
index 9e62d62812e5..9021298c3e8a 100644
--- a/arch/s390/lib/test_kprobes.c
+++ b/arch/s390/lib/test_kprobes.c
@@ -72,4 +72,5 @@ static struct kunit_suite kprobes_test_suite = {
 
 kunit_test_suites(&kprobes_test_suite);
 
+MODULE_DESCRIPTION("KUnit tests for kprobes");
 MODULE_LICENSE("GPL");
diff --git a/arch/s390/lib/test_modules.c b/arch/s390/lib/test_modules.c
index 9894009fc1f2..f96b6a3737e7 100644
--- a/arch/s390/lib/test_modules.c
+++ b/arch/s390/lib/test_modules.c
@@ -29,4 +29,5 @@ static struct kunit_suite modules_test_suite = {
 
 kunit_test_suites(&modules_test_suite);
 
+MODULE_DESCRIPTION("KUnit test that modules with many relocations are loaded properly");
 MODULE_LICENSE("GPL");
diff --git a/arch/s390/lib/test_unwind.c b/arch/s390/lib/test_unwind.c
index 768898dacb92..8b7f981e6f34 100644
--- a/arch/s390/lib/test_unwind.c
+++ b/arch/s390/lib/test_unwind.c
@@ -519,4 +519,5 @@ static struct kunit_suite test_unwind_suite = {
 
 kunit_test_suites(&test_unwind_suite);
 
+MODULE_DESCRIPTION("KUnit test for unwind_for_each_frame");
 MODULE_LICENSE("GPL");