[#1598] golangci: Enable unconvert linters

To drop unnecessary conversions.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

.golangci.yml

@@ -89,5 +89,6 @@ linters:
     - protogetter
     - intrange
     - tenv
+    - unconvert
   disable-all: true
   fast: false

cmd/frostfs-cli/modules/bearer/generate_override.go

@@ -52,7 +52,7 @@ func genereateAPEOverride(cmd *cobra.Command, _ []string) {
 
 	outputPath, _ := cmd.Flags().GetString(outputFlag)
 	if outputPath != "" {
-		err := os.WriteFile(outputPath, []byte(overrideMarshalled), 0o644)
+		err := os.WriteFile(outputPath, overrideMarshalled, 0o644)
 		commonCmd.ExitOnErr(cmd, "dump error: %w", err)
 	} else {
 		fmt.Print("\n")

cmd/frostfs-node/config.go

@@ -854,7 +854,7 @@ func initFrostfsID(appCfg *config.Config) cfgFrostfsID {
 
 func initCfgGRPC() cfgGRPC {
 	maxChunkSize := uint64(maxMsgSize) * 3 / 4  // 25% to meta, 75% to payload
-	maxAddrAmount := uint64(maxChunkSize) / addressSize // each address is about 72 bytes
+	maxAddrAmount := maxChunkSize / addressSize // each address is about 72 bytes
 
 	return cfgGRPC{
 		maxChunkSize:  maxChunkSize,

cmd/frostfs-node/config/node/config.go

@@ -198,7 +198,7 @@ func (l PersistentPolicyRulesConfig) Path() string {
 //
 // Returns PermDefault if the value is not a positive number.
 func (l PersistentPolicyRulesConfig) Perm() fs.FileMode {
-	p := config.UintSafe((*config.Config)(l.cfg), "perm")
+	p := config.UintSafe(l.cfg, "perm")
 	if p == 0 {
 		p = PermDefault
 	}
@@ -210,7 +210,7 @@ func (l PersistentPolicyRulesConfig) Perm() fs.FileMode {
 //
 // Returns false if the value is not a boolean.
 func (l PersistentPolicyRulesConfig) NoSync() bool {
-	return config.BoolSafe((*config.Config)(l.cfg), "no_sync")
+	return config.BoolSafe(l.cfg, "no_sync")
 }
 
 // CompatibilityMode returns true if need to run node in compatibility with previous versions mode.

cmd/frostfs-node/netmap.go

@@ -86,7 +86,7 @@ func (s *networkState) setNodeInfo(ni *netmapSDK.NodeInfo) {
 		}
 	}
 
-	s.setControlNetmapStatus(control.NetmapStatus(ctrlNetSt))
+	s.setControlNetmapStatus(ctrlNetSt)
 }
 
 // sets the current node state to the given value. Subsequent cfg.bootstrap

pkg/local_object_storage/blobstor/fstree/fstree_write_generic.go

@@ -136,6 +136,6 @@ func (w *genericWriter) removeWithCounter(p string, size uint64) error {
 	if err := os.Remove(p); err != nil {
 		return err
 	}
-	w.fileCounter.Dec(uint64(size))
+	w.fileCounter.Dec(size)
 	return nil
 }

pkg/local_object_storage/blobstor/fstree/fstree_write_linux.go

@@ -114,7 +114,7 @@ func (w *linuxWriter) removeFile(p string, size uint64) error {
 		return logicerr.Wrap(new(apistatus.ObjectNotFound))
 	}
 	if err == nil {
-		w.fileCounter.Dec(uint64(size))
+		w.fileCounter.Dec(size)
 	}
 	return err
 }

pkg/local_object_storage/blobstor/memstore/memstore.go

@@ -133,11 +133,11 @@ func (s *memstoreImpl) Iterate(_ context.Context, req common.IteratePrm) (common
 		elem := common.IterationElement{
 			ObjectData: v,
 		}
-		if err := elem.Address.DecodeString(string(k)); err != nil {
+		if err := elem.Address.DecodeString(k); err != nil {
 			if req.IgnoreErrors {
 				continue
 			}
-			return common.IterateRes{}, logicerr.Wrap(fmt.Errorf("(%T) decoding address string %q: %v", s, string(k), err))
+			return common.IterateRes{}, logicerr.Wrap(fmt.Errorf("(%T) decoding address string %q: %v", s, k, err))
 		}
 		var err error
 		if elem.ObjectData, err = s.compression.Decompress(elem.ObjectData); err != nil {

pkg/local_object_storage/engine/evacuate.go

@@ -724,7 +724,7 @@ func (e *StorageEngine) getActualShards(shardIDs []string, prm EvacuateShardPrm)
 	shards := make([]pooledShard, 0, len(e.shards))
 	for id := range e.shards {
 		shards = append(shards, pooledShard{
-			hashedShard: hashedShard(e.shards[id]),
+			hashedShard: e.shards[id],
 			pool:        e.shardPools[id],
 		})
 	}

pkg/local_object_storage/engine/shards.go

@@ -272,7 +272,7 @@ func (e *StorageEngine) sortShards(objAddr interface{ EncodeToString() string })
 	h := hrw.StringHash(objAddr.EncodeToString())
 	shards := make([]hashedShard, 0, len(e.shards))
 	for _, sh := range e.shards {
-		shards = append(shards, hashedShard(sh))
+		shards = append(shards, sh)
 	}
 	hrw.SortHasherSliceByValue(shards, h)
 	return shards
@@ -285,7 +285,7 @@ func (e *StorageEngine) unsortedShards() []hashedShard {
 	shards := make([]hashedShard, 0, len(e.shards))
 
 	for _, sh := range e.shards {
-		shards = append(shards, hashedShard(sh))
+		shards = append(shards, sh)
 	}
 
 	return shards

pkg/local_object_storage/shard/control.go

@@ -38,7 +38,7 @@ func (s *Shard) handleMetabaseFailure(ctx context.Context, stage string, err err
 
 	err = s.SetMode(ctx, mode.DegradedReadOnly)
 	if err != nil {
-		return fmt.Errorf("switch to mode %s", mode.Mode(mode.DegradedReadOnly))
+		return fmt.Errorf("switch to mode %s", mode.DegradedReadOnly)
 	}
 	return nil
 }

pkg/morph/event/netmap/epoch.go

@@ -41,7 +41,7 @@ func ParseNewEpoch(e *state.ContainedNotificationEvent) (event.Event, error) {
 	}
 
 	return NewEpoch{
-		Num:  uint64(nee.Epoch.Uint64()),
+		Num:  nee.Epoch.Uint64(),
 		Hash: e.Container,
 	}, nil
 }

pkg/services/object/put/v2/streamer.go

@@ -59,7 +59,7 @@ func (s *streamer) Send(ctx context.Context, req *object.PutRequest) (err error)
 			maxSz := s.stream.MaxSizeSrc.MaxObjectSize()
 
 			s.sizes = &sizes{
-				payloadSz: uint64(v.GetHeader().GetPayloadLength()),
+				payloadSz: v.GetHeader().GetPayloadLength(),
 			}
 
 			// check payload size limit overflow