From 778d5ceea583544762e3ffaaf73bc984863ea19e Mon Sep 17 00:00:00 2001
From: Jared Wasinger <j-wasinger@hotmail.com>
Date: Fri, 2 May 2025 19:10:39 +0800
Subject: [PATCH] consensu/misc/eip4844: implement EIP-7918 adjustments to
 excess blobgas calculation

---
 consensus/misc/eip4844/eip4844.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/consensus/misc/eip4844/eip4844.go b/consensus/misc/eip4844/eip4844.go
index 32b34f4e53..d453ecf085 100644
--- a/consensus/misc/eip4844/eip4844.go
+++ b/consensus/misc/eip4844/eip4844.go
@@ -76,6 +76,9 @@ func CalcExcessBlobGas(config *params.ChainConfig, parent *types.Header, headTim
 	if excessBlobGas < targetGas {
 		return 0
 	}
+	if config.IsOsaka(new(big.Int).Add(big.NewInt(1), parent.Number), headTimestamp) {
+		return excessBlobGas / 3
+	}
 	return excessBlobGas - targetGas
 }