3 files changed, 12 insertions, 12 deletions
diff --git a/gnuradio-runtime/include/gnuradio/rpccallbackregister_base.h b/gnuradio-runtime/include/gnuradio/rpccallbackregister_base.h
index c136791994..14e8772449 100644
--- a/gnuradio-runtime/include/gnuradio/rpccallbackregister_base.h
+++ b/gnuradio-runtime/include/gnuradio/rpccallbackregister_base.h
@@ -104,11 +104,11 @@ struct callbackregister_base
   callbackregister_base() {;}
   virtual ~callbackregister_base() {;}
 
-  virtual void registerConfigureCallback(const std::string &id, const configureCallback_t &callback) = 0;
+  virtual void registerConfigureCallback(const std::string &id, const configureCallback_t callback) = 0;
   virtual void unregisterConfigureCallback(const std::string &id) = 0;
-  virtual void registerQueryCallback(const std::string &id, const queryCallback_t &callback) = 0;
+  virtual void registerQueryCallback(const std::string &id, const queryCallback_t callback) = 0;
   virtual void unregisterQueryCallback(const std::string &id) = 0;
-  virtual void registerHandlerCallback(const std::string &id, const handlerCallback_t &callback) = 0;
+  virtual void registerHandlerCallback(const std::string &id, const handlerCallback_t callback) = 0;
   virtual void unregisterHandlerCallback(const std::string &id) = 0;
 };
 
diff --git a/gnuradio-runtime/include/gnuradio/rpcserver_aggregator.h b/gnuradio-runtime/include/gnuradio/rpcserver_aggregator.h
index c9c5356309..08426bb00c 100644
--- a/gnuradio-runtime/include/gnuradio/rpcserver_aggregator.h
+++ b/gnuradio-runtime/include/gnuradio/rpcserver_aggregator.h
@@ -34,13 +34,13 @@ public:
   rpcserver_aggregator();
   virtual ~rpcserver_aggregator();
 
-  void registerConfigureCallback(const std::string &id, const configureCallback_t &callback);
+  void registerConfigureCallback(const std::string &id, const configureCallback_t callback);
   void unregisterConfigureCallback(const std::string &id);
 
-  void registerQueryCallback(const std::string &id, const queryCallback_t &callback);
+  void registerQueryCallback(const std::string &id, const queryCallback_t callback);
   void unregisterQueryCallback(const std::string &id);
 
-  void registerHandlerCallback(const std::string &id, const handlerCallback_t &callback);
+  void registerHandlerCallback(const std::string &id, const handlerCallback_t callback);
   void unregisterHandlerCallback(const std::string &id);
 
   void registerServer(rpcmanager_base::rpcserver_booter_base_sptr server);
@@ -53,7 +53,7 @@ private:
   template<class T, typename Tcallback>
   struct registerConfigureCallback_f: public std::unary_function<T,void>
   {
-    registerConfigureCallback_f(const std::string &_id,  const Tcallback &_callback)
+    registerConfigureCallback_f(const std::string &_id,  const Tcallback _callback)
       : id(_id), callback(_callback)
     {;}
 
@@ -75,7 +75,7 @@ private:
   template<class T, typename Tcallback>
   struct registerQueryCallback_f: public std::unary_function<T,void>
   {
-    registerQueryCallback_f(const std::string &_id,  const Tcallback &_callback)
+    registerQueryCallback_f(const std::string &_id,  const Tcallback _callback)
       : id(_id), callback(_callback)
     {;}
 
@@ -99,7 +99,7 @@ private:
   template<class T, typename Tcallback>
   struct registerHandlerCallback_f: public std::unary_function<T,void>
   {
-    registerHandlerCallback_f(const std::string &_id,  const Tcallback &_callback)
+    registerHandlerCallback_f(const std::string &_id,  const Tcallback _callback)
       : id(_id), callback(_callback)
     {;}
 
diff --git a/gnuradio-runtime/include/gnuradio/rpcserver_base.h b/gnuradio-runtime/include/gnuradio/rpcserver_base.h
index c85165bcad..276dec5d1e 100644
--- a/gnuradio-runtime/include/gnuradio/rpcserver_base.h
+++ b/gnuradio-runtime/include/gnuradio/rpcserver_base.h
@@ -31,13 +31,13 @@ public:
   rpcserver_base() : cur_priv(RPC_PRIVLVL_ALL) {;}
   virtual ~rpcserver_base() {;}
 
-  virtual void registerConfigureCallback(const std::string &id, const configureCallback_t &callback) = 0;
+  virtual void registerConfigureCallback(const std::string &id, const configureCallback_t callback) = 0;
   virtual void unregisterConfigureCallback(const std::string &id) = 0;
 
-  virtual void registerQueryCallback(const std::string &id, const queryCallback_t &callback) = 0;
+  virtual void registerQueryCallback(const std::string &id, const queryCallback_t callback) = 0;
   virtual void unregisterQueryCallback(const std::string &id) = 0;
 
-  virtual void registerHandlerCallback(const std::string &id, const handlerCallback_t &callback) = 0;
+  virtual void registerHandlerCallback(const std::string &id, const handlerCallback_t callback) = 0;
   virtual void unregisterHandlerCallback(const std::string &id) = 0;
 
   virtual void setCurPrivLevel(const priv_lvl_t priv) { cur_priv = priv; }