From 35953f7764637c2db6305945a1524b3832341751 Mon Sep 17 00:00:00 2001
From: radik878 <radikpadik76@gmail.com>
Date: Sat, 1 Nov 2025 01:40:18 +0200
Subject: [PATCH] common: avoid allocation in isHex by iterating string bytes
 directly

---
 common/bytes.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/common/bytes.go b/common/bytes.go
index d1f5c6c995..0c9b98beee 100644
--- a/common/bytes.go
+++ b/common/bytes.go
@@ -62,8 +62,8 @@ func isHex(str string) bool {
 	if len(str)%2 != 0 {
 		return false
 	}
-	for _, c := range []byte(str) {
-		if !isHexCharacter(c) {
+	for i := 0; i < len(str); i++ {
+		if !isHexCharacter(str[i]) {
 			return false
 		}
 	}