[NET] drivers/net: statistics cleanup #1 -- save memory and shrink code

We now have struct net_device_stats embedded in struct net_device,
and the default ->get_stats() hook does the obvious thing for us.

Run through drivers/net/* and remove the driver-local storage of
statistics, and driver-local ->get_stats() hook where applicable.

This was just the low-hanging fruit in drivers/net; plenty more drivers
remain to be updated.

[ Resolved conflicts with napi_struct changes and fix sunqe build
  regression... -DaveM ]

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 19 insertions, 29 deletions

diff --git a/drivers/net/bmac.c b/drivers/net/bmac.c
index ee157f5a5db..2761441f664 100644
--- a/drivers/net/bmac.c
+++ b/drivers/net/bmac.c
@@ -75,7 +75,6 @@ struct bmac_data {
 	int tx_fill;
 	int tx_empty;
 	unsigned char tx_fullup;
-	struct net_device_stats stats;
 	struct timer_list tx_timeout;
 	int timeout_active;
 	int sleeping;
@@ -145,7 +144,6 @@ static unsigned char *bmac_emergency_rxbuf;
 static int bmac_open(struct net_device *dev);
 static int bmac_close(struct net_device *dev);
 static int bmac_transmit_packet(struct sk_buff *skb, struct net_device *dev);
-static struct net_device_stats *bmac_stats(struct net_device *dev);
 static void bmac_set_multicast(struct net_device *dev);
 static void bmac_reset_and_enable(struct net_device *dev);
 static void bmac_start_chip(struct net_device *dev);
@@ -668,7 +666,7 @@ static int bmac_transmit_packet(struct sk_buff *skb, struct net_device *dev)
 	bp->tx_bufs[bp->tx_fill] = skb;
 	bp->tx_fill = i;
 
-	bp->stats.tx_bytes += skb->len;
+	dev->stats.tx_bytes += skb->len;
 
 	dbdma_continue(td);
 
@@ -707,8 +705,8 @@ static irqreturn_t bmac_rxdma_intr(int irq, void *dev_id)
 		nb = RX_BUFLEN - residual - 2;
 		if (nb < (ETHERMINPACKET - ETHERCRC)) {
 			skb = NULL;
-			bp->stats.rx_length_errors++;
-			bp->stats.rx_errors++;
+			dev->stats.rx_length_errors++;
+			dev->stats.rx_errors++;
 		} else {
 			skb = bp->rx_bufs[i];
 			bp->rx_bufs[i] = NULL;
@@ -719,10 +717,10 @@ static irqreturn_t bmac_rxdma_intr(int irq, void *dev_id)
 			skb->protocol = eth_type_trans(skb, dev);
 			netif_rx(skb);
 			dev->last_rx = jiffies;
-			++bp->stats.rx_packets;
-			bp->stats.rx_bytes += nb;
+			++dev->stats.rx_packets;
+			dev->stats.rx_bytes += nb;
 		} else {
-			++bp->stats.rx_dropped;
+			++dev->stats.rx_dropped;
 		}
 		dev->last_rx = jiffies;
 		if ((skb = bp->rx_bufs[i]) == NULL) {
@@ -785,7 +783,7 @@ static irqreturn_t bmac_txdma_intr(int irq, void *dev_id)
 		}
 
 		if (bp->tx_bufs[bp->tx_empty]) {
-			++bp->stats.tx_packets;
+			++dev->stats.tx_packets;
 			dev_kfree_skb_irq(bp->tx_bufs[bp->tx_empty]);
 		}
 		bp->tx_bufs[bp->tx_empty] = NULL;
@@ -807,13 +805,6 @@ static irqreturn_t bmac_txdma_intr(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static struct net_device_stats *bmac_stats(struct net_device *dev)
-{
-	struct bmac_data *p = netdev_priv(dev);
-
-	return &p->stats;
-}
-
 #ifndef SUNHME_MULTICAST
 /* Real fast bit-reversal algorithm, 6-bit values */
 static int reverse6[64] = {
@@ -1080,17 +1071,17 @@ static irqreturn_t bmac_misc_intr(int irq, void *dev_id)
 	}
 	/* XXDEBUG(("bmac_misc_intr, status=%#08x\n", status)); */
 	/*     bmac_txdma_intr_inner(irq, dev_id); */
-	/*   if (status & FrameReceived) bp->stats.rx_dropped++; */
-	if (status & RxErrorMask) bp->stats.rx_errors++;
-	if (status & RxCRCCntExp) bp->stats.rx_crc_errors++;
-	if (status & RxLenCntExp) bp->stats.rx_length_errors++;
-	if (status & RxOverFlow) bp->stats.rx_over_errors++;
-	if (status & RxAlignCntExp) bp->stats.rx_frame_errors++;
-
-	/*   if (status & FrameSent) bp->stats.tx_dropped++; */
-	if (status & TxErrorMask) bp->stats.tx_errors++;
-	if (status & TxUnderrun) bp->stats.tx_fifo_errors++;
-	if (status & TxNormalCollExp) bp->stats.collisions++;
+	/*   if (status & FrameReceived) dev->stats.rx_dropped++; */
+	if (status & RxErrorMask) dev->stats.rx_errors++;
+	if (status & RxCRCCntExp) dev->stats.rx_crc_errors++;
+	if (status & RxLenCntExp) dev->stats.rx_length_errors++;
+	if (status & RxOverFlow) dev->stats.rx_over_errors++;
+	if (status & RxAlignCntExp) dev->stats.rx_frame_errors++;
+
+	/*   if (status & FrameSent) dev->stats.tx_dropped++; */
+	if (status & TxErrorMask) dev->stats.tx_errors++;
+	if (status & TxUnderrun) dev->stats.tx_fifo_errors++;
+	if (status & TxNormalCollExp) dev->stats.collisions++;
 	return IRQ_HANDLED;
 }
 
@@ -1324,7 +1315,6 @@ static int __devinit bmac_probe(struct macio_dev *mdev, const struct of_device_i
 	dev->stop = bmac_close;
 	dev->ethtool_ops = &bmac_ethtool_ops;
 	dev->hard_start_xmit = bmac_output;
-	dev->get_stats = bmac_stats;
 	dev->set_multicast_list = bmac_set_multicast;
 	dev->set_mac_address = bmac_set_address;
 
@@ -1542,7 +1532,7 @@ static void bmac_tx_timeout(unsigned long data)
 	XXDEBUG((KERN_DEBUG "bmac: tx empty=%d fill=%d fullup=%d\n",
 		 bp->tx_empty, bp->tx_fill, bp->tx_fullup));
 	i = bp->tx_empty;
-	++bp->stats.tx_errors;
+	++dev->stats.tx_errors;
 	if (i != bp->tx_fill) {
 		dev_kfree_skb(bp->tx_bufs[i]);
 		bp->tx_bufs[i] = NULL;