case ETH_SS_TEST:
                return ops->get_sset_count(h, stringset);
-       }
 
-       return 0;
+       default:
+               return -EOPNOTSUPP;
+       }
 }
 
 static void *hns3_update_strings(u8 *data, const struct hns3_stats *stats,
        case ETH_SS_TEST:
                ops->get_strings(h, stringset, data);
                break;
+       default:
+               break;
        }
 }
 
 
        case HCLGE_VECTOR0_EVENT_MBX:
                hclge_write_dev(&hdev->hw, HCLGE_VECTOR0_CMDQ_SRC_REG, regclr);
                break;
+       default:
+               break;
        }
 }
 
 
                                hnae3_set_client_init_flag(client, ae_dev, 1);
                        }
+
+                       break;
+               default:
+                       return -EINVAL;
                }
        }
 
 
 
                hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_HEAD_REG, 0);
                hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_TAIL_REG, 0);
-               break;
+               return 0;
        case HCLGEVF_TYPE_CRQ:
                reg_val = (u32)ring->desc_dma_addr;
                hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_BASEADDR_L_REG, reg_val);
 
                hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_HEAD_REG, 0);
                hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_TAIL_REG, 0);
-               break;
+               return 0;
+       default:
+               return -EINVAL;
        }
-
-       return 0;
 }
 
 void hclgevf_cmd_setup_basic_desc(struct hclgevf_desc *desc,