cancun: change empty withdrawHash value of header;

consensus/parlia/parlia.go

@@ -600,8 +600,8 @@ func (p *Parlia) verifyHeader(chain consensus.ChainHeaderReader, header *types.H
 		case header.ParentBeaconRoot != nil:
 			return fmt.Errorf("invalid parentBeaconRoot, have %#x, expected nil", header.ParentBeaconRoot)
 		// types.EmptyWithdrawalsHash represents a empty value when EIP-4895 enabled,
-		// here, EIP-4895 still be disabled, value expected to be `common.Hash{}` is only to feet the demand of rlp encode/decode
-		case header.WithdrawalsHash == nil || *header.WithdrawalsHash != common.Hash{}:
+		// here, EIP-4895 still be disabled, value expected to be `types.EmptyWithdrawalsHash` is only to feet the demand of rlp encode/decode
+		case header.WithdrawalsHash == nil || *header.WithdrawalsHash != types.EmptyWithdrawalsHash:
 			return errors.New("header has wrong WithdrawalsHash")
 		}
 		if err := eip4844.VerifyEIP4844Header(parent, header); err != nil {

core/types/block.go

@@ -183,7 +183,7 @@ func (h *Header) SanityCheck() error {
 // that is: no transactions, no uncles and no withdrawals.
 func (h *Header) EmptyBody() bool {
 	if h.WithdrawalsHash != nil {
-		return h.TxHash == EmptyTxsHash && (*h.WithdrawalsHash == EmptyWithdrawalsHash || *h.WithdrawalsHash == common.Hash{})
+		return h.TxHash == EmptyTxsHash && *h.WithdrawalsHash == EmptyWithdrawalsHash
 	}
 	return h.TxHash == EmptyTxsHash && h.UncleHash == EmptyUncleHash
 }
@@ -195,8 +195,7 @@ func (h *Header) EmptyReceipts() bool {
 
 // EmptyWithdrawalsHash returns true if there are no WithdrawalsHash for this header/block.
 func (h *Header) EmptyWithdrawalsHash() bool {
-	// TODO(GalaIO): if check EmptyWithdrawalsHash in here?
-	return h.WithdrawalsHash == nil || *h.WithdrawalsHash == common.Hash{}
+	return h.WithdrawalsHash == nil || *h.WithdrawalsHash == EmptyWithdrawalsHash
 }
 
 // Body is a simple (mutable, non-safe) data container for storing and moving

miner/worker.go

@@ -1015,6 +1015,7 @@ func (w *worker) prepareWork(genParams *generateParams) (*environment, error) {
 		header.ExcessBlobGas = &excessBlobGas
 		if w.chainConfig.Parlia != nil {
 			header.WithdrawalsHash = new(common.Hash)
+			*header.WithdrawalsHash = types.EmptyWithdrawalsHash
 		}
 		if w.chainConfig.Parlia == nil {
 			header.ParentBeaconRoot = genParams.beaconRoot