diff --git a/common/types_test.go b/common/types_test.go
index b44f66fe09..0bf9cb4ba9 100644
--- a/common/types_test.go
+++ b/common/types_test.go
@@ -157,4 +157,4 @@ func TestRemoveItemInArray(t *testing.T) {
 	if len(array) != 1 {
 		t.Error("fail remove item from array address")
 	}
-}
\ No newline at end of file
+}
diff --git a/compression/rle/read_write_test.go b/compression/rle/read_write_test.go
index b36f7907bc..496f2c0bc1 100644
--- a/compression/rle/read_write_test.go
+++ b/compression/rle/read_write_test.go
@@ -29,7 +29,7 @@ type CompressionRleSuite struct{}
 var _ = checker.Suite(&CompressionRleSuite{})
 
 func (s *CompressionRleSuite) TestDecompressSimple(c *checker.C) {
-	exp := []byte{0xc5, 0xd2, 0x46, 0x1, 0x86, 0xf7, 0x23, 0x3c, 0x92, 0x7e, 0x7d, 0xb2, 0xdc, 0xc7, 0x3, 0xc0, 0xe5, 0x0, 0xb6, 0x53, 0xca, 0x82, 0x27, 0x3b, 0x7b, 0xfa, 0xd8, 0x4, 0x5d, 0x85, 0xa4, 0x70}
+	exp := []byte{0xc5, 0xd2, 0x46, 0x1, 0x86, 0xf7, 0x23, 0x3c, 0x92, 0x7e, 0x7d, 0xb2, 0XDC, 0xc7, 0x3, 0xc0, 0xe5, 0x0, 0xb6, 0x53, 0xca, 0x82, 0x27, 0x3b, 0x7b, 0xfa, 0xd8, 0x4, 0x5d, 0x85, 0xa4, 0x70}
 	res, err := Decompress([]byte{token, 0xfd})
 	c.Assert(err, checker.IsNil)
 	c.Assert(res, checker.DeepEquals, exp)
diff --git a/consensus/XDPoS/XDPoS.go b/consensus/XDPoS/XDPoS.go
index fbaaf12531..e1fe2e477a 100644
--- a/consensus/XDPoS/XDPoS.go
+++ b/consensus/XDPoS/XDPoS.go
@@ -42,7 +42,6 @@ import (
 	"github.com/ethereum/go-ethereum/rlp"
 	"github.com/ethereum/go-ethereum/rpc"
 	"github.com/hashicorp/golang-lru"
-
 )
 
 const (
@@ -210,7 +209,7 @@ func ecrecover(header *types.Header, sigcache *lru.ARCCache) (common.Address, er
 // Ethereum testnet following the Ropsten attacks.
 type XDPoS struct {
 	config *params.XDPoSConfig // Consensus engine configuration parameters
-	db     ethdb.Database      // Database to store and retrieve snapshot checkpoints
+	db     ethdb.Database     // Database to store and retrieve snapshot checkpoints
 
 	recents             *lru.ARCCache // Snapshots for recent block to speed up reorgs
 	signatures          *lru.ARCCache // Signatures of recent blocks to speed up mining
@@ -923,7 +922,7 @@ func (c *XDPoS) Seal(chain consensus.ChainReader, block *types.Block, stop <-cha
 				if limit := uint64(2); number < limit || seen > number-limit {
 					// Only take into account the non-epoch blocks
 					if number%c.config.Epoch != 0 {
-						log.Info("Length of MasterNodes", "len(masternodes)", len(masternodes), "number", number, "limit", limit, "seen", seen, "recent", recent.String(), "snap.Recents", snap.Recents)
+						log.Info("len(masternodes)", len(masternodes), "number", number, "limit", limit, "seen", seen, "recent", recent.String(), "snap.Recents", snap.Recents)
 						log.Info("Signed recently, must wait for others")
 						<-stop
 						return nil, nil
diff --git a/consensus/consensus.go b/consensus/consensus.go
index 66fcbb092a..b02afa63c4 100644
--- a/consensus/consensus.go
+++ b/consensus/consensus.go
@@ -58,13 +58,13 @@ type Engine interface {
 	// VerifyHeader checks whether a header conforms to the consensus rules of a
 	// given engine. Verifying the seal may be done optionally here, or explicitly
 	// via the VerifySeal method.
-	VerifyHeader(chain ChainReader, state *state.StateDB, header *types.Header, fullVerify bool) error
+	VerifyHeader(chain ChainReader, header *types.Header, fullVerify bool) error
 
 	// VerifyHeaders is similar to VerifyHeader, but verifies a batch of headers
 	// concurrently. The method returns a quit channel to abort the operations and
 	// a results channel to retrieve the async verifications (the order is that of
 	// the input slice).
-	VerifyHeaders(chain ChainReader, state *state.StateDB, headers []*types.Header, seals []bool) (chan<- struct{}, <-chan error)
+	VerifyHeaders(chain ChainReader, headers []*types.Header, seals []bool) (chan<- struct{}, <-chan error)
 
 	// VerifyUncles verifies that the given block's uncles conform to the consensus
 	// rules of a given engine.
@@ -76,7 +76,7 @@ type Engine interface {
 
 	// Prepare initializes the consensus fields of a block header according to the
 	// rules of a particular engine. The changes are executed inline.
-	Prepare(chain ChainReader, state *state.StateDB, header *types.Header) error
+	Prepare(chain ChainReader, header *types.Header) error
 
 	// Finalize runs any post-transaction state modifications (e.g. block rewards)
 	// and assembles the final block.
@@ -103,4 +103,4 @@ type PoW interface {
 
 	// Hashrate returns the current mining hashrate of a PoW consensus engine.
 	Hashrate() float64
-}
\ No newline at end of file
+}