From 18df227b4feaaccbf58c9265a29838acfe840bf4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Deronne?= <sebastien.deronne@gmail.com>
Date: Fri, 2 Dec 2016 00:14:21 +0100
Subject: [PATCH] wifi: Remove unused variable m_nTxMpdus in MacLow

---
 src/wifi/model/mac-low.cc | 7 +++----
 src/wifi/model/mac-low.h  | 1 -
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/src/wifi/model/mac-low.cc b/src/wifi/model/mac-low.cc
index c19f41942..c2e951e28 100644
--- a/src/wifi/model/mac-low.cc
+++ b/src/wifi/model/mac-low.cc
@@ -363,8 +363,7 @@ MacLow::MacLow ()
     m_promisc (false),
     m_ampdu (false),
     m_phyMacLowListener (0),
-    m_ctsToSelfSupported (false),
-    m_nTxMpdus (0)
+    m_ctsToSelfSupported (false)
 {
   NS_LOG_FUNCTION (this);
   m_aggregateQueue = CreateObject<WifiMacQueue> ();
@@ -1531,7 +1530,6 @@ MacLow::ForwardDown (Ptr<const Packet> packet, const WifiMacHeader* hdr, WifiTxV
       Ptr <const Packet> dequeuedPacket;
       WifiMacHeader newHdr;
       WifiMacTrailer fcs;
-      m_nTxMpdus = m_aggregateQueue->GetSize ();
       uint32_t queueSize = m_aggregateQueue->GetSize ();
       bool vhtSingleMpdu = false;
       bool last = false;
@@ -1680,8 +1678,9 @@ MacLow::BlockAckTimeout (void)
   MacLowTransmissionListener *listener = m_listener;
   m_listener = 0;
   m_ampdu = false;
+  uint32_t nTxMpdus = m_aggregateQueue->GetSize ();
   FlushAggregateQueue ();
-  listener->MissedBlockAck (m_nTxMpdus);
+  listener->MissedBlockAck (nTxMpdus);
 }
 
 void
diff --git a/src/wifi/model/mac-low.h b/src/wifi/model/mac-low.h
index 1fc89f8e8..c5f9cdc4b 100644
--- a/src/wifi/model/mac-low.h
+++ b/src/wifi/model/mac-low.h
@@ -1361,7 +1361,6 @@ private:
   Ptr<WifiMacQueue> m_aggregateQueue; //!< Queue used for MPDU aggregation
   WifiTxVector m_currentTxVector;     //!< TXVECTOR used for the current packet transmission
   std::vector<Item> m_txPackets;      //!< Contain temporary items to be sent with the next A-MPDU transmission, once RTS/CTS exchange has succeeded. It is not used in other cases.
-  uint32_t m_nTxMpdus;                //!<Holds the number of transmitted MPDUs in the last A-MPDU transmission
 };
 
 } //namespace ns3