misc: Add explicit overrides and fix other clang >= 3.5 issues

This patch adds explicit overrides as this is now required when using
"-Wall" with clang >= 3.5, the latter now part of the most recent
XCode. The patch consequently removes "virtual" for those methods
where "override" is added. The latter should be enough of an
indication.

As part of this patch, a few minor issues that clang >= 3.5 complains
about are also resolved (unused methods and variables).

1 files changed, 5 insertions, 5 deletions

diff --git a/src/cpu/testers/traffic_gen/traffic_gen.hh b/src/cpu/testers/traffic_gen/traffic_gen.hh
index e5295bcf5..d57b613f3 100644
--- a/src/cpu/testers/traffic_gen/traffic_gen.hh
+++ b/src/cpu/testers/traffic_gen/traffic_gen.hh
@@ -192,12 +192,12 @@ class TrafficGen : public MemObject
 
     ~TrafficGen() {}
 
-    virtual BaseMasterPort& getMasterPort(const std::string &if_name,
-                                          PortID idx = InvalidPortID);
+    BaseMasterPort& getMasterPort(const std::string &if_name,
+                                  PortID idx = InvalidPortID) override;
 
-    void init();
+    void init() override;
 
-    void initState();
+    void initState() override;
 
     DrainState drain() override;
 
@@ -205,7 +205,7 @@ class TrafficGen : public MemObject
     void unserialize(CheckpointIn &cp) override;
 
     /** Register statistics */
-    void regStats();
+    void regStats() override;
 
 };