From ffcd75be7d896ce0da3b5ff939c96a1ea4d3ef11 Mon Sep 17 00:00:00 2001
From: protolambda <proto@protolambda.com>
Date: Fri, 16 Dec 2022 20:06:03 +0100
Subject: [PATCH] optimism: user can set pending block gas limit (#24)

---
 miner/worker.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/miner/worker.go b/miner/worker.go
index d944fbc85..e7a187899 100644
--- a/miner/worker.go
+++ b/miner/worker.go
@@ -1040,6 +1040,9 @@ func (w *worker) prepareWork(genParams *generateParams) (*environment, error) {
 	}
 	if genParams.gasLimit != nil { // override gas limit if specified
 		header.GasLimit = *genParams.gasLimit
+	} else if w.chain.Config().Optimism != nil && w.config.GasCeil != 0 {
+		// configure the gas limit of pending blocks with the miner gas limit config when using optimism
+		header.GasLimit = w.config.GasCeil
 	}
 	// Run the consensus preparation with the default or customized consensus engine.
 	if err := w.engine.Prepare(w.chain, header); err != nil {