From 419d437385f65d031769136851232550e5b1ba5e Mon Sep 17 00:00:00 2001
From: Andreas Hansson <andreas.hansson@arm.com>
Date: Fri, 4 Sep 2015 13:14:03 -0400
Subject: [PATCH] mem: Avoid setting markPending if not needed

In cases where a newly added target does not have any upstream MSHR to
mark as downstreamPending, remember that nothing is marked. This
allows us to avoid attempting to find the MSHR as part of the clearing
of downstreamPending.
---
 src/mem/cache/mshr.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mem/cache/mshr.cc b/src/mem/cache/mshr.cc
index 5b7eb0c06..085b8dae0 100644
--- a/src/mem/cache/mshr.cc
+++ b/src/mem/cache/mshr.cc
@@ -101,6 +101,9 @@ MSHR::TargetList::add(PacketPtr pkt, Tick readyTime,
         if (mshr != NULL) {
             assert(!mshr->downstreamPending);
             mshr->downstreamPending = true;
+        } else {
+            // No need to clear downstreamPending later
+            markPending = false;
         }
     }
 
-- 
2.30.2