From 610de75434574d7dc15b08c1362d0f516ae9612b Mon Sep 17 00:00:00 2001
From: Daniel Liu <139250065@qq.com>
Date: Fri, 20 Mar 2026 17:46:53 +0800
Subject: [PATCH] core/txpool/legacypool: use types.Sender instead of
 signer.Sender

`pool.signer.Sender(tx)` bypasses the sender cache used by types.Sender, which can force an extra signature recovery for every promotable tx (promotion runs frequently). Use `types.Sender(pool.signer, tx)` here to keep sender derivation cached and consistent.
---
 core/txpool/legacypool/legacypool.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/txpool/legacypool/legacypool.go b/core/txpool/legacypool/legacypool.go
index 25c4b13166..c717574cbb 100644
--- a/core/txpool/legacypool/legacypool.go
+++ b/core/txpool/legacypool/legacypool.go
@@ -1408,7 +1408,7 @@ func (pool *LegacyPool) promoteExecutables(accounts []common.Address) []*types.T
 	// promote all promotable transactions
 	promoted := make([]*types.Transaction, 0, len(promotable))
 	for _, tx := range promotable {
-		from, _ := pool.signer.Sender(tx)
+		from, _ := types.Sender(pool.signer, tx) // already validated
 		if pool.promoteTx(from, tx.Hash(), tx) {
 			promoted = append(promoted, tx)
 		}