From d60076cae0d2213ca9130718e4e028e7024a509d Mon Sep 17 00:00:00 2001
From: Alexander Krotov <ilabdsf@gmail.com>
Date: Fri, 14 Apr 2017 01:34:58 +0300
Subject: [PATCH] wifi: Make InterferenceHelper::GetEnergyDuration const

---
 src/wifi/model/interference-helper.cc | 2 +-
 src/wifi/model/interference-helper.h  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/wifi/model/interference-helper.cc b/src/wifi/model/interference-helper.cc
index d71e98c63..fc6e5efea 100644
--- a/src/wifi/model/interference-helper.cc
+++ b/src/wifi/model/interference-helper.cc
@@ -187,7 +187,7 @@ InterferenceHelper::SetNumberOfReceiveAntennas (uint8_t rx)
 }
 
 Time
-InterferenceHelper::GetEnergyDuration (double energyW)
+InterferenceHelper::GetEnergyDuration (double energyW) const
 {
   Time now = Simulator::Now ();
   double noiseInterferenceW = 0.0;
diff --git a/src/wifi/model/interference-helper.h b/src/wifi/model/interference-helper.h
index 3f844d9e6..788e26b52 100644
--- a/src/wifi/model/interference-helper.h
+++ b/src/wifi/model/interference-helper.h
@@ -155,7 +155,7 @@ private:
    *          energy on the medium will be higher than
    *          the requested threshold.
    */
-  Time GetEnergyDuration (double energyW);
+  Time GetEnergyDuration (double energyW) const;
 
   /**
    * Add the packet-related signal to interference helper.