From 2d5921eefa150c502f3e1ff5917e3e439458d6de Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Sat, 9 Jun 2018 19:49:58 +0100
Subject: [PATCH] blockchain: avoid duplicate db query for height

---
 src/cryptonote_core/blockchain.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index fbb2a2223..76a26a8f4 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -2205,7 +2205,7 @@ bool Blockchain::find_blockchain_supplement(const std::list<crypto::hash>& qbloc
   CRITICAL_REGION_LOCAL(m_blockchain_lock);
 
   bool result = find_blockchain_supplement(qblock_ids, resp.m_block_ids, resp.start_height, resp.total_height);
-  resp.cumulative_difficulty = m_db->get_block_cumulative_difficulty(m_db->height() - 1);
+  resp.cumulative_difficulty = m_db->get_block_cumulative_difficulty(resp.total_height - 1);
 
   return result;
 }