+#define to_test_storage(st) container_of(st, struct test_storage, storage)
+
+static int load(struct config_storage *st, struct config *config)
+{
+ struct test_storage *ts = to_test_storage(st);
+ memcpy(config, ts->config, sizeof(test_config));
+ return 0;
+}
+
+static int save(struct config_storage *st, struct config *newconfig)