etcdserver: fix "unconvert" warnings

Signed-off-by: Gyuho Lee <gyuhox@gmail.com>

etcdserver/api/v2http/metrics.go

@@ -87,9 +87,9 @@ func codeFromError(err error) int {
 	}
 	switch e := err.(type) {
 	case *v2error.Error:
-		return (*v2error.Error)(e).StatusCode()
+		return e.StatusCode()
 	case *httptypes.HTTPError:
-		return (*httptypes.HTTPError)(e).Code
+		return e.Code
 	default:
 		return http.StatusInternalServerError
 	}

etcdserver/api/v2v3/store.go

@@ -601,7 +601,7 @@ func (s *v2v3Store) mkV2Node(kv *mvccpb.KeyValue) *v2store.NodeExtern {
 		return nil
 	}
 	n := &v2store.NodeExtern{
-		Key:           string(s.mkNodePath(string(kv.Key))),
+		Key:           s.mkNodePath(string(kv.Key)),
 		Dir:           kv.Key[len(kv.Key)-1] == '/',
 		CreatedIndex:  mkV2Rev(kv.CreateRevision),
 		ModifiedIndex: mkV2Rev(kv.ModRevision),

etcdserver/corrupt.go

@@ -204,7 +204,7 @@ func (s *EtcdServer) checkHashKV() error {
 		}
 		alarmed = true
 		a := &pb.AlarmRequest{
-			MemberID: uint64(id),
+			MemberID: id,
 			Action:   pb.AlarmRequest_ACTIVATE,
 			Alarm:    pb.AlarmType_CORRUPT,
 		}

etcdserver/server.go

@@ -2002,7 +2002,7 @@ func (s *EtcdServer) applyConfChange(cc raftpb.ConfChange, confState *raftpb.Con
 				lg.Panic(
 					"got different member ID",
 					zap.String("member-id-from-config-change-entry", types.ID(cc.NodeID).String()),
-					zap.String("member-id-from-message", types.ID(m.ID).String()),
+					zap.String("member-id-from-message", m.ID.String()),
 				)
 			} else {
 				plog.Panicf("nodeID should always be equal to member ID")
@@ -2035,7 +2035,7 @@ func (s *EtcdServer) applyConfChange(cc raftpb.ConfChange, confState *raftpb.Con
 				lg.Panic(
 					"got different member ID",
 					zap.String("member-id-from-config-change-entry", types.ID(cc.NodeID).String()),
-					zap.String("member-id-from-message", types.ID(m.ID).String()),
+					zap.String("member-id-from-message", m.ID.String()),
 				)
 			} else {
 				plog.Panicf("nodeID should always be equal to member ID")