staging: octeon: Use net_device_stats from struct net_device

Instead of using a private copy of struct net_device_stats in
struct octeon_ethernet, use stats from struct net_device. Also remove
the now unnecessary .ndo_get_stats function.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/octeon/ethernet-rx.c

@@ -356,8 +356,8 @@ static int cvm_oct_poll(struct oct_rx_group *rx_group, int budget)
 
 				/* Increment RX stats for virtual ports */
 				if (port >= CVMX_PIP_NUM_INPUT_PORTS) {
-					priv->stats.rx_packets++;
-					priv->stats.rx_bytes += skb->len;
+					dev->stats.rx_packets++;
+					dev->stats.rx_bytes += skb->len;
 				}
 				netif_receive_skb(skb);
 			} else {
@@ -365,7 +365,7 @@ static int cvm_oct_poll(struct oct_rx_group *rx_group, int budget)
 				 * Drop any packet received for a device that
 				 * isn't up.
 				 */
-				priv->stats.rx_dropped++;
+				dev->stats.rx_dropped++;
 				dev_kfree_skb_irq(skb);
 			}
 		} else {

drivers/staging/octeon/ethernet-tx.c

@@ -460,7 +460,7 @@ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev)
 	case QUEUE_DROP:
 		skb->next = to_free_list;
 		to_free_list = skb;
-		priv->stats.tx_dropped++;
+		dev->stats.tx_dropped++;
 		break;
 	case QUEUE_HW:
 		cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, -1);
@@ -535,7 +535,7 @@ int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev)
 	if (unlikely(!work)) {
 		printk_ratelimited("%s: Failed to allocate a work queue entry\n",
 				   dev->name);
-		priv->stats.tx_dropped++;
+		dev->stats.tx_dropped++;
 		dev_kfree_skb_any(skb);
 		return 0;
 	}
@@ -546,7 +546,7 @@ int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev)
 		printk_ratelimited("%s: Failed to allocate a packet buffer\n",
 				   dev->name);
 		cvmx_fpa_free(work, CVMX_FPA_WQE_POOL, 1);
-		priv->stats.tx_dropped++;
+		dev->stats.tx_dropped++;
 		dev_kfree_skb_any(skb);
 		return 0;
 	}
@@ -663,8 +663,8 @@ int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev)
 	/* Submit the packet to the POW */
 	cvmx_pow_work_submit(work, work->word1.tag, work->word1.tag_type,
 			     cvmx_wqe_get_qos(work), cvmx_wqe_get_grp(work));
-	priv->stats.tx_packets++;
-	priv->stats.tx_bytes += skb->len;
+	dev->stats.tx_packets++;
+	dev->stats.tx_bytes += skb->len;
 	dev_consume_skb_any(skb);
 	return 0;
 }

drivers/staging/octeon/ethernet.c

@@ -228,17 +228,17 @@ static struct net_device_stats *cvm_oct_common_get_stats(struct net_device *dev)
 			cvmx_pko_get_port_status(priv->port, 1, &tx_status);
 		}
 
-		priv->stats.rx_packets += rx_status.inb_packets;
-		priv->stats.tx_packets += tx_status.packets;
-		priv->stats.rx_bytes += rx_status.inb_octets;
-		priv->stats.tx_bytes += tx_status.octets;
-		priv->stats.multicast += rx_status.multicast_packets;
-		priv->stats.rx_crc_errors += rx_status.inb_errors;
-		priv->stats.rx_frame_errors += rx_status.fcs_align_err_packets;
-		priv->stats.rx_dropped += rx_status.dropped_packets;
+		dev->stats.rx_packets += rx_status.inb_packets;
+		dev->stats.tx_packets += tx_status.packets;
+		dev->stats.rx_bytes += rx_status.inb_octets;
+		dev->stats.tx_bytes += tx_status.octets;
+		dev->stats.multicast += rx_status.multicast_packets;
+		dev->stats.rx_crc_errors += rx_status.inb_errors;
+		dev->stats.rx_frame_errors += rx_status.fcs_align_err_packets;
+		dev->stats.rx_dropped += rx_status.dropped_packets;
 	}
 
-	return &priv->stats;
+	return &dev->stats;
 }
 
 /**

drivers/staging/octeon/octeon-ethernet.h

@@ -38,8 +38,6 @@ struct octeon_ethernet {
 	int imode;
 	/* List of outstanding tx buffers per queue */
 	struct sk_buff_head tx_free_list[16];
-	/* Device statistics */
-	struct net_device_stats stats;
 	unsigned int last_speed;
 	unsigned int last_link;
 	/* Last negotiated link state */