From 0ad1ca204018c4287f1b0dd84bc04a623d04aaa0 Mon Sep 17 00:00:00 2001
From: cuiweixie <cuiweixie@gmail.com>
Date: Fri, 15 Aug 2025 18:50:00 +0800
Subject: [PATCH] cmd: opt with clear map

---
 cmd/utils/cmd.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmd/utils/cmd.go b/cmd/utils/cmd.go
index b332a060de..37407e98b1 100644
--- a/cmd/utils/cmd.go
+++ b/cmd/utils/cmd.go
@@ -526,7 +526,7 @@ func ImportPreimages(db ethdb.Database, fn string) error {
 		preimages[crypto.Keccak256Hash(blob)] = common.CopyBytes(blob)
 		if len(preimages) > 1024 {
 			rawdb.WritePreimages(db, preimages)
-			preimages = make(map[common.Hash][]byte)
+			clear(preimages)
 		}
 	}
 	// Flush the last batch preimage data