nfp: handle cls_flower command default case

Currently the default case is not handled, which with future command
introductions would introduce a warning. So handle it.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Acked-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/netronome/nfp/flower/offload.c

@@ -576,9 +576,9 @@ nfp_flower_repr_offload(struct nfp_app *app, struct net_device *netdev,
 		return nfp_flower_del_offload(app, netdev, flower, egress);
 	case TC_CLSFLOWER_STATS:
 		return nfp_flower_get_stats(app, netdev, flower, egress);
+	default:
+		return -EOPNOTSUPP;
 	}
-
-	return -EOPNOTSUPP;
 }
 
 int nfp_flower_setup_tc_egress_cb(enum tc_setup_type type, void *type_data,