From ce08f205e8d346cd42ffd248b296fc0ef45f86ec Mon Sep 17 00:00:00 2001
From: rjl493456442 <garyrong0905@gmail.com>
Date: Wed, 12 Jun 2019 18:53:35 +0800
Subject: [PATCH] les: add invalid counter for duplicate invalid req

---
 les/handler.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/les/handler.go b/les/handler.go
index 962cbc5937..c7bd231033 100644
--- a/les/handler.go
+++ b/les/handler.go
@@ -885,6 +885,7 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
 					}
 					// If a header lookup failed (non existent), ignore subsequent requests for the same header
 					if root == (common.Hash{}) {
+						atomic.AddUint32(&p.invalidCount, 1)
 						continue
 					}
 					// Open the account or storage trie for the request