acenic: use netstats in net_device structure

Use net_device_stats from net_device structure instead of local.
No need to memset it to 0, because it is allocated by kzalloc.
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/net/acenic.c

@@ -1457,11 +1457,6 @@ static int __devinit ace_init(struct net_device *dev)
 	ace_set_txprd(regs, ap, 0);
 	writel(0, &regs->RxRetCsm);
 
-	/*
-	 * Zero the stats before starting the interface
-	 */
-	memset(&ap->stats, 0, sizeof(ap->stats));
-
        /*
 	* Enable DMA engine now.
 	* If we do this sooner, Mckinley box pukes.
@@ -2041,8 +2036,8 @@ static void ace_rx_int(struct net_device *dev, u32 rxretprd, u32 rxretcsm)
 			netif_rx(skb);
 
 		dev->last_rx = jiffies;
-		ap->stats.rx_packets++;
-		ap->stats.rx_bytes += retdesc->size;
+		dev->stats.rx_packets++;
+		dev->stats.rx_bytes += retdesc->size;
 
 		idx = (idx + 1) % RX_RETURN_RING_ENTRIES;
 	}
@@ -2090,8 +2085,8 @@ static inline void ace_tx_int(struct net_device *dev,
 		}
 
 		if (skb) {
-			ap->stats.tx_packets++;
-			ap->stats.tx_bytes += skb->len;
+			dev->stats.tx_packets++;
+			dev->stats.tx_bytes += skb->len;
 			dev_kfree_skb_irq(skb);
 			info->skb = NULL;
 		}
@@ -2863,11 +2858,11 @@ static struct net_device_stats *ace_get_stats(struct net_device *dev)
 	struct ace_mac_stats __iomem *mac_stats =
 		(struct ace_mac_stats __iomem *)ap->regs->Stats;
 
-	ap->stats.rx_missed_errors = readl(&mac_stats->drop_space);
-	ap->stats.multicast = readl(&mac_stats->kept_mc);
-	ap->stats.collisions = readl(&mac_stats->coll);
+	dev->stats.rx_missed_errors = readl(&mac_stats->drop_space);
+	dev->stats.multicast = readl(&mac_stats->kept_mc);
+	dev->stats.collisions = readl(&mac_stats->coll);
 
-	return &ap->stats;
+	return &dev->stats;
 }
 
 

drivers/net/acenic.h

@@ -693,7 +693,6 @@ struct ace_private
 				__attribute__ ((aligned (SMP_CACHE_BYTES)));
 	u32			last_tx, last_std_rx, last_mini_rx;
 #endif
-	struct net_device_stats stats;
 	int			pci_using_dac;
 };