diff --git a/cmd/frostfs-adm/internal/modules/morph/generate/root.go b/cmd/frostfs-adm/internal/modules/morph/generate/root.go
index 6b04848a..3633d9a8 100644
--- a/cmd/frostfs-adm/internal/modules/morph/generate/root.go
+++ b/cmd/frostfs-adm/internal/modules/morph/generate/root.go
@@ -32,7 +32,7 @@ var (
 			_ = viper.BindPFlag(commonflags.EndpointFlag, cmd.Flags().Lookup(commonflags.EndpointFlag))
 			_ = viper.BindPFlag(commonflags.RefillGasAmountFlag, cmd.Flags().Lookup(commonflags.RefillGasAmountFlag))
 		},
-		RunE: func(cmd *cobra.Command, args []string) error {
+		RunE: func(cmd *cobra.Command, _ []string) error {
 			return refillGas(cmd, commonflags.RefillGasAmountFlag, false)
 		},
 	}
diff --git a/cmd/frostfs-adm/internal/modules/morph/policy/root.go b/cmd/frostfs-adm/internal/modules/morph/policy/root.go
index db50279d..a8a35620 100644
--- a/cmd/frostfs-adm/internal/modules/morph/policy/root.go
+++ b/cmd/frostfs-adm/internal/modules/morph/policy/root.go
@@ -16,7 +16,7 @@ var (
 			_ = viper.BindPFlag(commonflags.EndpointFlag, cmd.Flags().Lookup(commonflags.EndpointFlag))
 		},
 		RunE: SetPolicyCmd,
-		ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+		ValidArgsFunction: func(_ *cobra.Command, _ []string, _ string) ([]string, cobra.ShellCompDirective) {
 			return []string{"ExecFeeFactor=", "StoragePrice=", "FeePerByte="}, cobra.ShellCompDirectiveNoSpace
 		},
 	}
diff --git a/cmd/frostfs-cli/internal/client/client.go b/cmd/frostfs-cli/internal/client/client.go
index 9807e111..f5ccabbe 100644
--- a/cmd/frostfs-cli/internal/client/client.go
+++ b/cmd/frostfs-cli/internal/client/client.go
@@ -353,7 +353,7 @@ type PutObjectPrm struct {
 
 	rdr io.Reader
 
-	headerCallback func(*objectSDK.Object)
+	headerCallback func()
 
 	prepareLocally bool
 }
@@ -370,7 +370,7 @@ func (x *PutObjectPrm) SetPayloadReader(rdr io.Reader) {
 
 // SetHeaderCallback sets callback which is called on the object after the header is received
 // but before the payload is written.
-func (x *PutObjectPrm) SetHeaderCallback(f func(*objectSDK.Object)) {
+func (x *PutObjectPrm) SetHeaderCallback(f func()) {
 	x.headerCallback = f
 }
 
@@ -439,7 +439,7 @@ func PutObject(ctx context.Context, prm PutObjectPrm) (*PutObjectRes, error) {
 
 	if wrt.WriteHeader(ctx, *prm.hdr) {
 		if prm.headerCallback != nil {
-			prm.headerCallback(prm.hdr)
+			prm.headerCallback()
 		}
 
 		sz := prm.hdr.PayloadSize()
diff --git a/cmd/frostfs-cli/modules/accounting/balance.go b/cmd/frostfs-cli/modules/accounting/balance.go
index d10b9eaa..1364b5e8 100644
--- a/cmd/frostfs-cli/modules/accounting/balance.go
+++ b/cmd/frostfs-cli/modules/accounting/balance.go
@@ -23,7 +23,7 @@ var accountingBalanceCmd = &cobra.Command{
 	Use:   "balance",
 	Short: "Get internal balance of FrostFS account",
 	Long:  `Get internal balance of FrostFS account`,
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		var idUser user.ID
 
 		pk := key.GetOrGenerate(cmd)
diff --git a/cmd/frostfs-cli/modules/accounting/root.go b/cmd/frostfs-cli/modules/accounting/root.go
index 8ab8aa12..afeca762 100644
--- a/cmd/frostfs-cli/modules/accounting/root.go
+++ b/cmd/frostfs-cli/modules/accounting/root.go
@@ -11,7 +11,7 @@ var Cmd = &cobra.Command{
 	Use:   "accounting",
 	Short: "Operations with accounts and balances",
 	Long:  `Operations with accounts and balances`,
-	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+	PersistentPreRun: func(cmd *cobra.Command, _ []string) {
 		flags := cmd.Flags()
 
 		_ = viper.BindPFlag(commonflags.WalletPath, flags.Lookup(commonflags.WalletPath))
diff --git a/cmd/frostfs-cli/modules/container/create.go b/cmd/frostfs-cli/modules/container/create.go
index f670043e..728332b3 100644
--- a/cmd/frostfs-cli/modules/container/create.go
+++ b/cmd/frostfs-cli/modules/container/create.go
@@ -38,7 +38,7 @@ var createContainerCmd = &cobra.Command{
 	Short: "Create new container",
 	Long: `Create new container and register it in the FrostFS.
 It will be stored in sidechain when inner ring will accepts it.`,
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		placementPolicy, err := parseContainerPolicy(cmd, containerPolicy)
 		commonCmd.ExitOnErr(cmd, "", err)
 
diff --git a/cmd/frostfs-cli/modules/container/delete.go b/cmd/frostfs-cli/modules/container/delete.go
index 20de84f7..e5425bf2 100644
--- a/cmd/frostfs-cli/modules/container/delete.go
+++ b/cmd/frostfs-cli/modules/container/delete.go
@@ -20,7 +20,7 @@ var deleteContainerCmd = &cobra.Command{
 	Short: "Delete existing container",
 	Long: `Delete existing container.
 Only owner of the container has a permission to remove container.`,
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		id := parseContainerID(cmd)
 
 		tok := getSession(cmd)
diff --git a/cmd/frostfs-cli/modules/container/get.go b/cmd/frostfs-cli/modules/container/get.go
index 1681dc7f..8c4ab14f 100644
--- a/cmd/frostfs-cli/modules/container/get.go
+++ b/cmd/frostfs-cli/modules/container/get.go
@@ -33,7 +33,7 @@ var getContainerInfoCmd = &cobra.Command{
 	Use:   "get",
 	Short: "Get container field info",
 	Long:  `Get container field info`,
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		cnr, _ := getContainer(cmd)
 
 		prettyPrintContainer(cmd, cnr, containerJSON)
diff --git a/cmd/frostfs-cli/modules/container/get_eacl.go b/cmd/frostfs-cli/modules/container/get_eacl.go
index 8896db76..4ed1c82e 100644
--- a/cmd/frostfs-cli/modules/container/get_eacl.go
+++ b/cmd/frostfs-cli/modules/container/get_eacl.go
@@ -16,7 +16,7 @@ var getExtendedACLCmd = &cobra.Command{
 	Use:   "get-eacl",
 	Short: "Get extended ACL table of container",
 	Long:  `Get extended ACL table of container`,
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		id := parseContainerID(cmd)
 		pk := key.GetOrGenerate(cmd)
 		cli := internalclient.GetSDKClientByFlag(cmd, pk, commonflags.RPC)
diff --git a/cmd/frostfs-cli/modules/container/list.go b/cmd/frostfs-cli/modules/container/list.go
index 86c1e5fb..8f5db49d 100644
--- a/cmd/frostfs-cli/modules/container/list.go
+++ b/cmd/frostfs-cli/modules/container/list.go
@@ -31,7 +31,7 @@ var listContainersCmd = &cobra.Command{
 	Use:   "list",
 	Short: "List all created containers",
 	Long:  "List all created containers",
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		var idUser user.ID
 
 		key := key.GetOrGenerate(cmd)
diff --git a/cmd/frostfs-cli/modules/container/list_objects.go b/cmd/frostfs-cli/modules/container/list_objects.go
index 1e0aeb4d..ff2f8cf4 100644
--- a/cmd/frostfs-cli/modules/container/list_objects.go
+++ b/cmd/frostfs-cli/modules/container/list_objects.go
@@ -28,7 +28,7 @@ var listContainerObjectsCmd = &cobra.Command{
 	Use:   "list-objects",
 	Short: "List existing objects in container",
 	Long:  `List existing objects in container`,
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		id := parseContainerID(cmd)
 
 		filters := new(objectSDK.SearchFilters)
diff --git a/cmd/frostfs-cli/modules/container/nodes.go b/cmd/frostfs-cli/modules/container/nodes.go
index 9273dd65..d785fa23 100644
--- a/cmd/frostfs-cli/modules/container/nodes.go
+++ b/cmd/frostfs-cli/modules/container/nodes.go
@@ -19,7 +19,7 @@ var containerNodesCmd = &cobra.Command{
 	Use:   "nodes",
 	Short: "Show nodes for container",
 	Long:  "Show nodes taking part in a container at the current epoch.",
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		cnr, pkey := getContainer(cmd)
 
 		if pkey == nil {
diff --git a/cmd/frostfs-cli/modules/container/root.go b/cmd/frostfs-cli/modules/container/root.go
index ab7f5fb9..99d1a423 100644
--- a/cmd/frostfs-cli/modules/container/root.go
+++ b/cmd/frostfs-cli/modules/container/root.go
@@ -10,7 +10,7 @@ var Cmd = &cobra.Command{
 	Use:   "container",
 	Short: "Operations with containers",
 	Long:  "Operations with containers",
-	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+	PersistentPreRun: func(cmd *cobra.Command, _ []string) {
 		// bind exactly that cmd's flags to
 		// the viper before execution
 		commonflags.Bind(cmd)
diff --git a/cmd/frostfs-cli/modules/container/set_eacl.go b/cmd/frostfs-cli/modules/container/set_eacl.go
index f2f60f5c..86aa50a5 100644
--- a/cmd/frostfs-cli/modules/container/set_eacl.go
+++ b/cmd/frostfs-cli/modules/container/set_eacl.go
@@ -25,7 +25,7 @@ var setExtendedACLCmd = &cobra.Command{
 	Short: "Set new extended ACL table for container",
 	Long: `Set new extended ACL table for container.
 Container ID in EACL table will be substituted with ID from the CLI.`,
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		id := parseContainerID(cmd)
 		eaclTable := common.ReadEACL(cmd, flagVarsSetEACL.srcPath)
 
diff --git a/cmd/frostfs-cli/modules/control/drop_objects.go b/cmd/frostfs-cli/modules/control/drop_objects.go
index 9de3ae8a..8c0bb233 100644
--- a/cmd/frostfs-cli/modules/control/drop_objects.go
+++ b/cmd/frostfs-cli/modules/control/drop_objects.go
@@ -14,7 +14,7 @@ var dropObjectsCmd = &cobra.Command{
 	Use:   "drop-objects",
 	Short: "Drop objects from the node's local storage",
 	Long:  "Drop objects from the node's local storage",
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		pk := key.Get(cmd)
 
 		dropObjectsList, _ := cmd.Flags().GetStringSlice(dropObjectsFlag)
diff --git a/cmd/frostfs-cli/modules/control/root.go b/cmd/frostfs-cli/modules/control/root.go
index 41222fc0..b20d3618 100644
--- a/cmd/frostfs-cli/modules/control/root.go
+++ b/cmd/frostfs-cli/modules/control/root.go
@@ -10,7 +10,7 @@ var Cmd = &cobra.Command{
 	Use:   "control",
 	Short: "Operations with storage node",
 	Long:  `Operations with storage node`,
-	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+	PersistentPreRun: func(cmd *cobra.Command, _ []string) {
 		ff := cmd.Flags()
 
 		_ = viper.BindPFlag(commonflags.WalletPath, ff.Lookup(commonflags.WalletPath))
diff --git a/cmd/frostfs-cli/modules/netmap/get_epoch.go b/cmd/frostfs-cli/modules/netmap/get_epoch.go
index 1670f16c..8e60e69b 100644
--- a/cmd/frostfs-cli/modules/netmap/get_epoch.go
+++ b/cmd/frostfs-cli/modules/netmap/get_epoch.go
@@ -12,7 +12,7 @@ var getEpochCmd = &cobra.Command{
 	Use:   "epoch",
 	Short: "Get current epoch number",
 	Long:  "Get current epoch number",
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		p := key.GetOrGenerate(cmd)
 		cli := internalclient.GetSDKClientByFlag(cmd, p, commonflags.RPC)
 
diff --git a/cmd/frostfs-cli/modules/netmap/netinfo.go b/cmd/frostfs-cli/modules/netmap/netinfo.go
index ceea6a89..cd43ba68 100644
--- a/cmd/frostfs-cli/modules/netmap/netinfo.go
+++ b/cmd/frostfs-cli/modules/netmap/netinfo.go
@@ -16,7 +16,7 @@ var netInfoCmd = &cobra.Command{
 	Use:   "netinfo",
 	Short: "Get information about FrostFS network",
 	Long:  "Get information about FrostFS network",
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		p := key.GetOrGenerate(cmd)
 		cli := internalclient.GetSDKClientByFlag(cmd, p, commonflags.RPC)
 
diff --git a/cmd/frostfs-cli/modules/netmap/nodeinfo.go b/cmd/frostfs-cli/modules/netmap/nodeinfo.go
index bf73286e..b6ec48f3 100644
--- a/cmd/frostfs-cli/modules/netmap/nodeinfo.go
+++ b/cmd/frostfs-cli/modules/netmap/nodeinfo.go
@@ -18,7 +18,7 @@ var nodeInfoCmd = &cobra.Command{
 	Use:   "nodeinfo",
 	Short: "Get target node info",
 	Long:  `Get target node info`,
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		p := key.GetOrGenerate(cmd)
 		cli := internalclient.GetSDKClientByFlag(cmd, p, commonflags.RPC)
 
diff --git a/cmd/frostfs-cli/modules/netmap/root.go b/cmd/frostfs-cli/modules/netmap/root.go
index aaa83f12..b4f5897e 100644
--- a/cmd/frostfs-cli/modules/netmap/root.go
+++ b/cmd/frostfs-cli/modules/netmap/root.go
@@ -9,7 +9,7 @@ var Cmd = &cobra.Command{
 	Use:   "netmap",
 	Short: "Operations with Network Map",
 	Long:  `Operations with Network Map`,
-	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+	PersistentPreRun: func(cmd *cobra.Command, _ []string) {
 		// bind exactly that cmd's flags to
 		// the viper before execution
 		commonflags.Bind(cmd)
diff --git a/cmd/frostfs-cli/modules/netmap/snapshot.go b/cmd/frostfs-cli/modules/netmap/snapshot.go
index eaaf598b..650d8a1b 100644
--- a/cmd/frostfs-cli/modules/netmap/snapshot.go
+++ b/cmd/frostfs-cli/modules/netmap/snapshot.go
@@ -12,7 +12,7 @@ var snapshotCmd = &cobra.Command{
 	Use:   "snapshot",
 	Short: "Request current local snapshot of the network map",
 	Long:  `Request current local snapshot of the network map`,
-	Run: func(cmd *cobra.Command, args []string) {
+	Run: func(cmd *cobra.Command, _ []string) {
 		p := key.GetOrGenerate(cmd)
 		cli := internalclient.GetSDKClientByFlag(cmd, p, commonflags.RPC)
 
diff --git a/cmd/frostfs-cli/modules/object/put.go b/cmd/frostfs-cli/modules/object/put.go
index a41d3c0a..45e02edb 100644
--- a/cmd/frostfs-cli/modules/object/put.go
+++ b/cmd/frostfs-cli/modules/object/put.go
@@ -174,7 +174,7 @@ func setFilePayloadReader(cmd *cobra.Command, f *os.File, prm *internalclient.Pu
 	p := pb.New64(fi.Size())
 	p.Output = cmd.OutOrStdout()
 	prm.SetPayloadReader(p.NewProxyReader(f))
-	prm.SetHeaderCallback(func(o *objectSDK.Object) { p.Start() })
+	prm.SetHeaderCallback(func() { p.Start() })
 	return p
 }
 
@@ -182,7 +182,7 @@ func setBinaryPayloadReader(cmd *cobra.Command, obj *objectSDK.Object, prm *inte
 	p := pb.New(len(obj.Payload()))
 	p.Output = cmd.OutOrStdout()
 	prm.SetPayloadReader(p.NewProxyReader(payloadReader))
-	prm.SetHeaderCallback(func(o *objectSDK.Object) { p.Start() })
+	prm.SetHeaderCallback(func() { p.Start() })
 	return p
 }
 
diff --git a/cmd/frostfs-cli/modules/object/root.go b/cmd/frostfs-cli/modules/object/root.go
index e04366f4..7d8008b1 100644
--- a/cmd/frostfs-cli/modules/object/root.go
+++ b/cmd/frostfs-cli/modules/object/root.go
@@ -10,7 +10,7 @@ var Cmd = &cobra.Command{
 	Use:   "object",
 	Short: "Operations with Objects",
 	Long:  `Operations with Objects`,
-	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+	PersistentPreRun: func(cmd *cobra.Command, _ []string) {
 		// bind exactly that cmd's flags to
 		// the viper before execution
 		commonflags.Bind(cmd)
diff --git a/cmd/frostfs-cli/modules/session/create.go b/cmd/frostfs-cli/modules/session/create.go
index e92e4baa..e13200a5 100644
--- a/cmd/frostfs-cli/modules/session/create.go
+++ b/cmd/frostfs-cli/modules/session/create.go
@@ -29,7 +29,7 @@ var createCmd = &cobra.Command{
 	Use:   "create",
 	Short: "Create session token",
 	Run:   createSession,
-	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+	PersistentPreRun: func(cmd *cobra.Command, _ []string) {
 		_ = viper.BindPFlag(commonflags.WalletPath, cmd.Flags().Lookup(commonflags.WalletPath))
 		_ = viper.BindPFlag(commonflags.Account, cmd.Flags().Lookup(commonflags.Account))
 	},
diff --git a/cmd/frostfs-cli/modules/util/root.go b/cmd/frostfs-cli/modules/util/root.go
index 3cdd236d..4a6b4403 100644
--- a/cmd/frostfs-cli/modules/util/root.go
+++ b/cmd/frostfs-cli/modules/util/root.go
@@ -9,7 +9,7 @@ import (
 var Cmd = &cobra.Command{
 	Use:   "util",
 	Short: "Utility operations",
-	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+	PersistentPreRun: func(cmd *cobra.Command, _ []string) {
 		flags := cmd.Flags()
 
 		_ = viper.BindPFlag(commonflags.GenerateKey, flags.Lookup(commonflags.GenerateKey))
diff --git a/cmd/frostfs-node/config.go b/cmd/frostfs-node/config.go
index e5d3f731..166d36b0 100644
--- a/cmd/frostfs-node/config.go
+++ b/cmd/frostfs-node/config.go
@@ -925,7 +925,7 @@ func (c *cfg) getSubstorageOpts(shCfg shardCfg) []blobstor.SubStorage {
 
 			ss = append(ss, blobstor.SubStorage{
 				Storage: fstree.New(fstreeOpts...),
-				Policy: func(_ *objectSDK.Object, data []byte) bool {
+				Policy: func(_ *objectSDK.Object, _ []byte) bool {
 					return true
 				},
 			})
diff --git a/cmd/frostfs-node/netmap.go b/cmd/frostfs-node/netmap.go
index b21e842c..b1d854da 100644
--- a/cmd/frostfs-node/netmap.go
+++ b/cmd/frostfs-node/netmap.go
@@ -176,7 +176,7 @@ func addNewEpochNotificationHandlers(c *cfg) {
 		c.cfgNetmap.state.setCurrentEpoch(ev.(netmapEvent.NewEpoch).EpochNumber())
 	})
 
-	addNewEpochAsyncNotificationHandler(c, func(ev event.Event) {
+	addNewEpochAsyncNotificationHandler(c, func(_ event.Event) {
 		if !c.needBootstrap() || c.cfgNetmap.reBoostrapTurnedOff.Load() { // fixes #470
 			return
 		}
@@ -203,7 +203,7 @@ func addNewEpochNotificationHandlers(c *cfg) {
 	})
 
 	if c.cfgMorph.notaryEnabled {
-		addNewEpochAsyncNotificationHandler(c, func(ev event.Event) {
+		addNewEpochAsyncNotificationHandler(c, func(_ event.Event) {
 			_, err := makeNotaryDeposit(c)
 			if err != nil {
 				c.log.Error(logs.FrostFSNodeCouldNotMakeNotaryDeposit,
diff --git a/pkg/local_object_storage/blobovnicza/control.go b/pkg/local_object_storage/blobovnicza/control.go
index dfc4f884..dab30164 100644
--- a/pkg/local_object_storage/blobovnicza/control.go
+++ b/pkg/local_object_storage/blobovnicza/control.go
@@ -115,7 +115,7 @@ func (b *Blobovnicza) initializeCounters() error {
 			return nil
 		}
 
-		return b.iterateAllDataBuckets(tx, func(lower, upper uint64, b *bbolt.Bucket) (bool, error) {
+		return b.iterateAllDataBuckets(tx, func(_, _ uint64, b *bbolt.Bucket) (bool, error) {
 			return false, b.ForEach(func(k, v []byte) error {
 				size += uint64(len(k) + len(v))
 				items++
diff --git a/pkg/local_object_storage/metabase/control.go b/pkg/local_object_storage/metabase/control.go
index ec4c29c4..a275f456 100644
--- a/pkg/local_object_storage/metabase/control.go
+++ b/pkg/local_object_storage/metabase/control.go
@@ -167,7 +167,7 @@ func (db *DB) init(reset bool) error {
 			return nil
 		}
 
-		err = tx.ForEach(func(name []byte, b *bbolt.Bucket) error {
+		err = tx.ForEach(func(name []byte, _ *bbolt.Bucket) error {
 			if _, ok := mStaticBuckets[string(name)]; !ok {
 				return tx.DeleteBucket(name)
 			}
diff --git a/pkg/local_object_storage/metabase/inhume.go b/pkg/local_object_storage/metabase/inhume.go
index cd83a615..25050412 100644
--- a/pkg/local_object_storage/metabase/inhume.go
+++ b/pkg/local_object_storage/metabase/inhume.go
@@ -354,7 +354,7 @@ func isTomb(graveyardBucket *bbolt.Bucket, key []byte) (bool, error) {
 
 	// iterate over graveyard and check if target address
 	// is the address of tombstone in graveyard.
-	err := graveyardBucket.ForEach(func(k, v []byte) error {
+	err := graveyardBucket.ForEach(func(_, v []byte) error {
 		// check if graveyard has record with key corresponding
 		// to tombstone address (at least one)
 		targetIsTomb = bytes.Equal(v, key)
diff --git a/pkg/local_object_storage/metabase/select.go b/pkg/local_object_storage/metabase/select.go
index 8b086a89..e5321c79 100644
--- a/pkg/local_object_storage/metabase/select.go
+++ b/pkg/local_object_storage/metabase/select.go
@@ -174,7 +174,7 @@ func selectAllFromBucket(tx *bbolt.Tx, name []byte, to map[string]int, fNum int)
 		return
 	}
 
-	_ = bkt.ForEach(func(k, v []byte) error {
+	_ = bkt.ForEach(func(k, _ []byte) error {
 		markAddressInCache(to, fNum, string(k))
 
 		return nil
@@ -386,7 +386,7 @@ func (db *DB) selectFromList(
 			return
 		}
 
-		if err = fMatch.matchBucket(bkt, f.Header(), f.Value(), func(key, val []byte) error {
+		if err = fMatch.matchBucket(bkt, f.Header(), f.Value(), func(_, val []byte) error {
 			l, err := decodeList(val)
 			if err != nil {
 				db.log.Debug(logs.MetabaseCantDecodeListBucketLeaf,
@@ -459,7 +459,7 @@ func (db *DB) selectObjectID(
 				return
 			}
 
-			err := fMatch.matchBucket(bkt, f.Header(), f.Value(), func(k, v []byte) error {
+			err := fMatch.matchBucket(bkt, f.Header(), f.Value(), func(k, _ []byte) error {
 				var id oid.ID
 				if err := id.Decode(k); err == nil {
 					appendOID(id)
diff --git a/pkg/local_object_storage/shard/shard.go b/pkg/local_object_storage/shard/shard.go
index e8f1978d..8368f6db 100644
--- a/pkg/local_object_storage/shard/shard.go
+++ b/pkg/local_object_storage/shard/shard.go
@@ -375,7 +375,7 @@ func WithRebuildWorkerLimiter(l RebuildWorkerLimiter) Option {
 // For testing purposes only.
 func WithDisabledGC() Option {
 	return func(c *cfg) {
-		c.gcCfg.testHookRemover = func(ctx context.Context) gcRunResult { return gcRunResult{} }
+		c.gcCfg.testHookRemover = func(_ context.Context) gcRunResult { return gcRunResult{} }
 	}
 }
 
diff --git a/pkg/local_object_storage/writecache/iterate.go b/pkg/local_object_storage/writecache/iterate.go
index 5349c069..9ec039f9 100644
--- a/pkg/local_object_storage/writecache/iterate.go
+++ b/pkg/local_object_storage/writecache/iterate.go
@@ -27,7 +27,7 @@ func IterateDB(db *bbolt.DB, f func(oid.Address) error) error {
 
 		var addr oid.Address
 
-		return b.ForEach(func(k, v []byte) error {
+		return b.ForEach(func(k, _ []byte) error {
 			err := addr.DecodeString(string(k))
 			if err != nil {
 				return fmt.Errorf("could not parse object address: %w", err)
diff --git a/pkg/services/notificator/nats/service.go b/pkg/services/notificator/nats/service.go
index 7f525df9..9de538f2 100644
--- a/pkg/services/notificator/nats/service.go
+++ b/pkg/services/notificator/nats/service.go
@@ -93,10 +93,10 @@ func New(oo ...Option) *Writer {
 
 	w.opts.nOpts = append(w.opts.nOpts,
 		nats.NoCallbacksAfterClientClose(), // do not call callbacks when it was planned writer stop
-		nats.DisconnectErrHandler(func(conn *nats.Conn, err error) {
+		nats.DisconnectErrHandler(func(_ *nats.Conn, err error) {
 			w.log.Error(logs.NatsNatsConnectionWasLost, zap.Error(err))
 		}),
-		nats.ReconnectHandler(func(conn *nats.Conn) {
+		nats.ReconnectHandler(func(_ *nats.Conn) {
 			w.log.Warn(logs.NatsNatsReconnectedToTheServer)
 		}),
 	)