diff --git a/drivers/intel/ixgbevf/ixgbevf-4.18.9-zc/src/ixgbevf_main.c b/drivers/intel/ixgbevf/ixgbevf-4.18.9-zc/src/ixgbevf_main.c
index 6ca07e603..49269b6a9 100644
--- a/drivers/intel/ixgbevf/ixgbevf-4.18.9-zc/src/ixgbevf_main.c
+++ b/drivers/intel/ixgbevf/ixgbevf-4.18.9-zc/src/ixgbevf_main.c
@@ -888,6 +888,12 @@ static void ixgbevf_configure_tx_ring(struct ixgbevf_adapter *adapter, struct ix
 static void ixgbevf_clean_rx_ring(struct ixgbevf_ring *rx_ring);
 static void ixgbevf_clean_tx_ring(struct ixgbevf_ring *tx_ring);
 
+int ring_is_not_empty(struct ixgbevf_ring *rx_ring);
+int wait_packet_function_ptr(void *data, int mode);
+int wake_up_pfring_zc_socket(struct ixgbevf_ring *rx_ring);
+int notify_function_ptr(void *rx_data, void *tx_data, u_int8_t device_in_use); 
+zc_dev_model pfring_zc_dev_model(struct ixgbe_hw *hw);
+
 int ring_is_not_empty(struct ixgbevf_ring *rx_ring) {
 	union ixgbe_adv_rx_desc *rx_desc;
 	u32 staterr;
@@ -3035,7 +3041,7 @@ static void ixgbevf_configure(struct ixgbevf_adapter *adapter)
 			  rx_ring->netdev,
 			  rx_ring->dev, /* for DMA mapping */
 			  pfring_zc_dev_model(hw),
-			  rx_ring->netdev->dev_addr,
+			  (unsigned char *)rx_ring->netdev->dev_addr,
 			  &rx_ring->pfring_zc.rx_tx.rx.packet_waitqueue,
 			  &rx_ring->pfring_zc.rx_tx.rx.interrupt_received,
 			  (void *) rx_ring,
@@ -3382,7 +3388,7 @@ void ixgbevf_down(struct ixgbevf_adapter *adapter)
 			  adapter->rx_ring[i]->netdev,
 			  adapter->rx_ring[i]->dev, /* for DMA mapping */
 			  pfring_zc_dev_model(hw),
-			  adapter->rx_ring[i]->netdev->dev_addr,
+			  (unsigned char *)adapter->rx_ring[i]->netdev->dev_addr,
 			  &adapter->rx_ring[i]->pfring_zc.rx_tx.rx.packet_waitqueue,
 			  &adapter->rx_ring[i]->pfring_zc.rx_tx.rx.interrupt_received,
 			  (void *) adapter->rx_ring[i],