atl1c: use net_device_stats from struct net_device

struct net_device has its own struct net_device_stats member, so use
this one instead of a private copy in the atl1c_adapter struct.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/atl1c/atl1c.h

@@ -559,7 +559,6 @@ struct atl1c_adapter {
 	struct napi_struct  napi;
 	struct atl1c_hw        hw;
 	struct atl1c_hw_stats  hw_stats;
-	struct net_device_stats net_stats;
 	struct mii_if_info  mii;    /* MII interface info */
 	u16 rx_buffer_len;
 

drivers/net/atl1c/atl1c_main.c

@@ -1562,7 +1562,7 @@ static struct net_device_stats *atl1c_get_stats(struct net_device *netdev)
 {
 	struct atl1c_adapter *adapter = netdev_priv(netdev);
 	struct atl1c_hw_stats  *hw_stats = &adapter->hw_stats;
-	struct net_device_stats *net_stats = &adapter->net_stats;
+	struct net_device_stats *net_stats = &netdev->stats;
 
 	atl1c_update_hw_stats(adapter);
 	net_stats->rx_packets = hw_stats->rx_ok;
@@ -1590,7 +1590,7 @@ static struct net_device_stats *atl1c_get_stats(struct net_device *netdev)
 	net_stats->tx_aborted_errors = hw_stats->tx_abort_col;
 	net_stats->tx_window_errors  = hw_stats->tx_late_col;
 
-	return &adapter->net_stats;
+	return net_stats;
 }
 
 static inline void atl1c_clear_phy_int(struct atl1c_adapter *adapter)
@@ -1700,7 +1700,7 @@ static irqreturn_t atl1c_intr(int irq, void *data)
 
 		/* link event */
 		if (status & (ISR_GPHY | ISR_MANUAL)) {
-			adapter->net_stats.tx_carrier_errors++;
+			netdev->stats.tx_carrier_errors++;
 			atl1c_link_chg_event(adapter);
 			break;
 		}