at91_ether: use netstats in net_device structure

Use net_device_stats from net_device structure instead of local.

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

2 files changed, 19 insertions, 21 deletions

diff --git a/drivers/net/arm/at91_ether.c b/drivers/net/arm/at91_ether.c
index 1e39e78f1778..49c320bca345 100644
--- a/drivers/net/arm/at91_ether.c
+++ b/drivers/net/arm/at91_ether.c
@@ -820,7 +820,7 @@ static int at91ether_tx(struct sk_buff *skb, struct net_device *dev)
                 lp->skb = skb;
                 lp->skb_length = skb->len;
                 lp->skb_physaddr = dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE);
-                lp->stats.tx_bytes += skb->len;
+                dev->stats.tx_bytes += skb->len;
 
                 /* Set address of the data in the Transmit Address register */
                 at91_emac_write(AT91_EMAC_TAR, lp->skb_physaddr);
@@ -843,34 +843,33 @@ static int at91ether_tx(struct sk_buff *skb, struct net_device *dev)
  */
 static struct net_device_stats *at91ether_stats(struct net_device *dev)
 {
-        struct at91_private *lp = netdev_priv(dev);
         int ale, lenerr, seqe, lcol, ecol;
 
         if (netif_running(dev)) {
-                lp->stats.rx_packets += at91_emac_read(AT91_EMAC_OK);           /* Good frames received */
+                dev->stats.rx_packets += at91_emac_read(AT91_EMAC_OK);          /* Good frames received */
                 ale = at91_emac_read(AT91_EMAC_ALE);
-                lp->stats.rx_frame_errors += ale;                               /* Alignment errors */
+                dev->stats.rx_frame_errors += ale;                              /* Alignment errors */
                 lenerr = at91_emac_read(AT91_EMAC_ELR) + at91_emac_read(AT91_EMAC_USF);
-                lp->stats.rx_length_errors += lenerr;                           /* Excessive Length or Undersize Frame error */
+                dev->stats.rx_length_errors += lenerr;                          /* Excessive Length or Undersize Frame error */
                 seqe = at91_emac_read(AT91_EMAC_SEQE);
-                lp->stats.rx_crc_errors += seqe;                                /* CRC error */
-                lp->stats.rx_fifo_errors += at91_emac_read(AT91_EMAC_DRFC);     /* Receive buffer not available */
-                lp->stats.rx_errors += (ale + lenerr + seqe
+                dev->stats.rx_crc_errors += seqe;                               /* CRC error */
+                dev->stats.rx_fifo_errors += at91_emac_read(AT91_EMAC_DRFC);    /* Receive buffer not available */
+                dev->stats.rx_errors += (ale + lenerr + seqe
                         + at91_emac_read(AT91_EMAC_CDE) + at91_emac_read(AT91_EMAC_RJB));
 
-                lp->stats.tx_packets += at91_emac_read(AT91_EMAC_FRA);          /* Frames successfully transmitted */
-                lp->stats.tx_fifo_errors += at91_emac_read(AT91_EMAC_TUE);      /* Transmit FIFO underruns */
-                lp->stats.tx_carrier_errors += at91_emac_read(AT91_EMAC_CSE);   /* Carrier Sense errors */
-                lp->stats.tx_heartbeat_errors += at91_emac_read(AT91_EMAC_SQEE);/* Heartbeat error */
+                dev->stats.tx_packets += at91_emac_read(AT91_EMAC_FRA);         /* Frames successfully transmitted */
+                dev->stats.tx_fifo_errors += at91_emac_read(AT91_EMAC_TUE);     /* Transmit FIFO underruns */
+                dev->stats.tx_carrier_errors += at91_emac_read(AT91_EMAC_CSE);  /* Carrier Sense errors */
+                dev->stats.tx_heartbeat_errors += at91_emac_read(AT91_EMAC_SQEE);/* Heartbeat error */
 
                 lcol = at91_emac_read(AT91_EMAC_LCOL);
                 ecol = at91_emac_read(AT91_EMAC_ECOL);
-                lp->stats.tx_window_errors += lcol;                     /* Late collisions */
-                lp->stats.tx_aborted_errors += ecol;                    /* 16 collisions */
+                dev->stats.tx_window_errors += lcol;                    /* Late collisions */
+                dev->stats.tx_aborted_errors += ecol;                   /* 16 collisions */
 
-                lp->stats.collisions += (at91_emac_read(AT91_EMAC_SCOL) + at91_emac_read(AT91_EMAC_MCOL) + lcol + ecol);
+                dev->stats.collisions += (at91_emac_read(AT91_EMAC_SCOL) + at91_emac_read(AT91_EMAC_MCOL) + lcol + ecol);
         }
-        return &lp->stats;
+        return &dev->stats;
 }
 
 /*
@@ -896,16 +895,16 @@ static void at91ether_rx(struct net_device *dev)
 
                         skb->protocol = eth_type_trans(skb, dev);
                         dev->last_rx = jiffies;
-                        lp->stats.rx_bytes += pktlen;
+                        dev->stats.rx_bytes += pktlen;
                         netif_rx(skb);
                 }
                 else {
-                        lp->stats.rx_dropped += 1;
+                        dev->stats.rx_dropped += 1;
                         printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
                 }
 
                 if (dlist->descriptors[lp->rxBuffIndex].size & EMAC_MULTICAST)
-                        lp->stats.multicast++;
+                        dev->stats.multicast++;
 
                 dlist->descriptors[lp->rxBuffIndex].addr &= ~EMAC_DESC_DONE;    /* reset ownership bit */
                 if (lp->rxBuffIndex == MAX_RX_DESCR-1)                          /* wrap after last buffer */
@@ -934,7 +933,7 @@ static irqreturn_t at91ether_interrupt(int irq, void *dev_id)
         if (intstatus & AT91_EMAC_TCOM) {       /* Transmit complete */
                 /* The TCOM bit is set even if the transmission failed. */
                 if (intstatus & (AT91_EMAC_TUND | AT91_EMAC_RTRY))
-                        lp->stats.tx_errors += 1;
+                        dev->stats.tx_errors += 1;
 
                 if (lp->skb) {
                         dev_kfree_skb_irq(lp->skb);
diff --git a/drivers/net/arm/at91_ether.h b/drivers/net/arm/at91_ether.h
index a38fd2d053a6..353f4dab62be 100644
--- a/drivers/net/arm/at91_ether.h
+++ b/drivers/net/arm/at91_ether.h
@@ -84,7 +84,6 @@ struct recv_desc_bufs
 
 struct at91_private
 {
-        struct net_device_stats stats;
         struct mii_if_info mii;                 /* ethtool support */
         struct at91_eth_data board_data;        /* board-specific configuration */
         struct clk *ether_clk;                  /* clock */