From 034f773b6bb47de025bddf2b966ee71f77a8b889 Mon Sep 17 00:00:00 2001
From: Tuna <ng.tuna@gmail.com>
Date: Wed, 16 May 2018 23:17:00 +0700
Subject: [PATCH] allow non-zero coinbase in block header

---
 consensus/clique/clique.go | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/consensus/clique/clique.go b/consensus/clique/clique.go
index 4def588dfa..13e8bb878e 100644
--- a/consensus/clique/clique.go
+++ b/consensus/clique/clique.go
@@ -277,9 +277,6 @@ func (c *Clique) verifyHeader(chain consensus.ChainReader, header *types.Header,
 	}
 	// Checkpoint blocks need to enforce zero beneficiary
 	checkpoint := (number % c.config.Epoch) == 0
-	if checkpoint && header.Coinbase != (common.Address{}) {
-		return errInvalidCheckpointBeneficiary
-	}
 	// Nonces must be 0x00..0 or 0xff..f, zeroes enforced on checkpoints
 	if !bytes.Equal(header.Nonce[:], nonceAuthVote) && !bytes.Equal(header.Nonce[:], nonceDropVote) {
 		return errInvalidVote