diff --git a/src/cryptonote_core/miner.cpp b/src/cryptonote_core/miner.cpp
index d021b05bd..56b459d6e 100644
--- a/src/cryptonote_core/miner.cpp
+++ b/src/cryptonote_core/miner.cpp
@@ -23,8 +23,7 @@ using namespace epee;
 #include "miner.h"
 
 
-extern "C" void slow_hash_allocate_state();
-extern "C" void slow_hash_free_state();
+
 namespace cryptonote
 {
 
@@ -189,19 +188,10 @@ namespace cryptonote
     return true;
   }
   //-----------------------------------------------------------------------------------------------------
-  bool miner::is_mining() const
+  bool miner::is_mining()
   {
     return !m_stop;
   }
-  //-----------------------------------------------------------------------------------------------------
-  const account_public_address& miner::get_mining_address() const
-  {
-    return m_mine_address;
-  }
-  //-----------------------------------------------------------------------------------------------------
-  uint32_t miner::get_threads_count() const {
-    return m_threads_total;
-  }
   //----------------------------------------------------------------------------------------------------- 
   bool miner::start(const account_public_address& adr, size_t threads_count, const boost::thread::attributes& attrs)
   {
@@ -236,14 +226,12 @@ namespace cryptonote
     return true;
   }
   //-----------------------------------------------------------------------------------------------------
-  uint64_t miner::get_speed() const
+  uint64_t miner::get_speed()
   {
-    if(is_mining()) {
+    if(is_mining())
       return m_current_hash_rate;
-    }
-    else {
+    else
       return 0;
-    }
   }
   //-----------------------------------------------------------------------------------------------------
   void miner::send_stop_signal()
@@ -321,7 +309,6 @@ namespace cryptonote
     difficulty_type local_diff = 0;
     uint32_t local_template_ver = 0;
     block b;
-	  slow_hash_allocate_state();
     while(!m_stop)
     {
       if(m_pausers_count)//anti split workaround
@@ -370,7 +357,6 @@ namespace cryptonote
       nonce+=m_threads_total;
       ++m_hashes;
     }
-	  slow_hash_free_state();
     LOG_PRINT_L0("Miner thread stopped ["<< th_local_index << "]");
     return true;
   }