[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, 39 insertions, 48 deletions

diff --git a/drivers/net/sunlance.c b/drivers/net/sunlance.c
index 17d66c1..7bf5c90 100644
--- a/drivers/net/sunlance.c
+++ b/drivers/net/sunlance.c
@@ -248,7 +248,6 @@ struct lance_private {
 	int		rx_new, tx_new;
 	int		rx_old, tx_old;
 
-	struct net_device_stats	stats;
 	struct sbus_dma *ledma;	/* If set this points to ledma	*/
 	char		tpe;		/* cable-selection is TPE	*/
 	char		auto_select;	/* cable-selection by carrier	*/
@@ -519,17 +518,17 @@ static void lance_rx_dvma(struct net_device *dev)
 
 		/* We got an incomplete frame? */
 		if ((bits & LE_R1_POK) != LE_R1_POK) {
-			lp->stats.rx_over_errors++;
-			lp->stats.rx_errors++;
+			dev->stats.rx_over_errors++;
+			dev->stats.rx_errors++;
 		} else if (bits & LE_R1_ERR) {
 			/* Count only the end frame as a rx error,
 			 * not the beginning
 			 */
-			if (bits & LE_R1_BUF) lp->stats.rx_fifo_errors++;
-			if (bits & LE_R1_CRC) lp->stats.rx_crc_errors++;
-			if (bits & LE_R1_OFL) lp->stats.rx_over_errors++;
-			if (bits & LE_R1_FRA) lp->stats.rx_frame_errors++;
-			if (bits & LE_R1_EOP) lp->stats.rx_errors++;
+			if (bits & LE_R1_BUF) dev->stats.rx_fifo_errors++;
+			if (bits & LE_R1_CRC) dev->stats.rx_crc_errors++;
+			if (bits & LE_R1_OFL) dev->stats.rx_over_errors++;
+			if (bits & LE_R1_FRA) dev->stats.rx_frame_errors++;
+			if (bits & LE_R1_EOP) dev->stats.rx_errors++;
 		} else {
 			len = (rd->mblength & 0xfff) - 4;
 			skb = dev_alloc_skb(len + 2);
@@ -537,14 +536,14 @@ static void lance_rx_dvma(struct net_device *dev)
 			if (skb == NULL) {
 				printk(KERN_INFO "%s: Memory squeeze, deferring packet.\n",
 				       dev->name);
-				lp->stats.rx_dropped++;
+				dev->stats.rx_dropped++;
 				rd->mblength = 0;
 				rd->rmd1_bits = LE_R1_OWN;
 				lp->rx_new = RX_NEXT(entry);
 				return;
 			}
 
-			lp->stats.rx_bytes += len;
+			dev->stats.rx_bytes += len;
 
 			skb_reserve(skb, 2);		/* 16 byte align */
 			skb_put(skb, len);		/* make room */
@@ -554,7 +553,7 @@ static void lance_rx_dvma(struct net_device *dev)
 			skb->protocol = eth_type_trans(skb, dev);
 			netif_rx(skb);
 			dev->last_rx = jiffies;
-			lp->stats.rx_packets++;
+			dev->stats.rx_packets++;
 		}
 
 		/* Return the packet to the pool */
@@ -586,12 +585,12 @@ static void lance_tx_dvma(struct net_device *dev)
 		if (bits & LE_T1_ERR) {
 			u16 status = td->misc;
 
-			lp->stats.tx_errors++;
-			if (status & LE_T3_RTY)  lp->stats.tx_aborted_errors++;
-			if (status & LE_T3_LCOL) lp->stats.tx_window_errors++;
+			dev->stats.tx_errors++;
+			if (status & LE_T3_RTY)  dev->stats.tx_aborted_errors++;
+			if (status & LE_T3_LCOL) dev->stats.tx_window_errors++;
 
 			if (status & LE_T3_CLOS) {
-				lp->stats.tx_carrier_errors++;
+				dev->stats.tx_carrier_errors++;
 				if (lp->auto_select) {
 					lp->tpe = 1 - lp->tpe;
 					printk(KERN_NOTICE "%s: Carrier Lost, trying %s\n",
@@ -608,7 +607,7 @@ static void lance_tx_dvma(struct net_device *dev)
 			 * transmitter, restart the adapter.
 			 */
 			if (status & (LE_T3_BUF|LE_T3_UFL)) {
-				lp->stats.tx_fifo_errors++;
+				dev->stats.tx_fifo_errors++;
 
 				printk(KERN_ERR "%s: Tx: ERR_BUF|ERR_UFL, restarting\n",
 				       dev->name);
@@ -626,13 +625,13 @@ static void lance_tx_dvma(struct net_device *dev)
 
 			/* One collision before packet was sent. */
 			if (bits & LE_T1_EONE)
-				lp->stats.collisions++;
+				dev->stats.collisions++;
 
 			/* More than one collision, be optimistic. */
 			if (bits & LE_T1_EMORE)
-				lp->stats.collisions += 2;
+				dev->stats.collisions += 2;
 
-			lp->stats.tx_packets++;
+			dev->stats.tx_packets++;
 		}
 
 		j = TX_NEXT(j);
@@ -692,17 +691,17 @@ static void lance_rx_pio(struct net_device *dev)
 
 		/* We got an incomplete frame? */
 		if ((bits & LE_R1_POK) != LE_R1_POK) {
-			lp->stats.rx_over_errors++;
-			lp->stats.rx_errors++;
+			dev->stats.rx_over_errors++;
+			dev->stats.rx_errors++;
 		} else if (bits & LE_R1_ERR) {
 			/* Count only the end frame as a rx error,
 			 * not the beginning
 			 */
-			if (bits & LE_R1_BUF) lp->stats.rx_fifo_errors++;
-			if (bits & LE_R1_CRC) lp->stats.rx_crc_errors++;
-			if (bits & LE_R1_OFL) lp->stats.rx_over_errors++;
-			if (bits & LE_R1_FRA) lp->stats.rx_frame_errors++;
-			if (bits & LE_R1_EOP) lp->stats.rx_errors++;
+			if (bits & LE_R1_BUF) dev->stats.rx_fifo_errors++;
+			if (bits & LE_R1_CRC) dev->stats.rx_crc_errors++;
+			if (bits & LE_R1_OFL) dev->stats.rx_over_errors++;
+			if (bits & LE_R1_FRA) dev->stats.rx_frame_errors++;
+			if (bits & LE_R1_EOP) dev->stats.rx_errors++;
 		} else {
 			len = (sbus_readw(&rd->mblength) & 0xfff) - 4;
 			skb = dev_alloc_skb(len + 2);
@@ -710,14 +709,14 @@ static void lance_rx_pio(struct net_device *dev)
 			if (skb == NULL) {
 				printk(KERN_INFO "%s: Memory squeeze, deferring packet.\n",
 				       dev->name);
-				lp->stats.rx_dropped++;
+				dev->stats.rx_dropped++;
 				sbus_writew(0, &rd->mblength);
 				sbus_writeb(LE_R1_OWN, &rd->rmd1_bits);
 				lp->rx_new = RX_NEXT(entry);
 				return;
 			}
 
-			lp->stats.rx_bytes += len;
+			dev->stats.rx_bytes += len;
 
 			skb_reserve (skb, 2);		/* 16 byte align */
 			skb_put(skb, len);		/* make room */
@@ -725,7 +724,7 @@ static void lance_rx_pio(struct net_device *dev)
 			skb->protocol = eth_type_trans(skb, dev);
 			netif_rx(skb);
 			dev->last_rx = jiffies;
-			lp->stats.rx_packets++;
+			dev->stats.rx_packets++;
 		}
 
 		/* Return the packet to the pool */
@@ -757,12 +756,12 @@ static void lance_tx_pio(struct net_device *dev)
 		if (bits & LE_T1_ERR) {
 			u16 status = sbus_readw(&td->misc);
 
-			lp->stats.tx_errors++;
-			if (status & LE_T3_RTY)  lp->stats.tx_aborted_errors++;
-			if (status & LE_T3_LCOL) lp->stats.tx_window_errors++;
+			dev->stats.tx_errors++;
+			if (status & LE_T3_RTY)  dev->stats.tx_aborted_errors++;
+			if (status & LE_T3_LCOL) dev->stats.tx_window_errors++;
 
 			if (status & LE_T3_CLOS) {
-				lp->stats.tx_carrier_errors++;
+				dev->stats.tx_carrier_errors++;
 				if (lp->auto_select) {
 					lp->tpe = 1 - lp->tpe;
 					printk(KERN_NOTICE "%s: Carrier Lost, trying %s\n",
@@ -779,7 +778,7 @@ static void lance_tx_pio(struct net_device *dev)
 			 * transmitter, restart the adapter.
 			 */
 			if (status & (LE_T3_BUF|LE_T3_UFL)) {
-				lp->stats.tx_fifo_errors++;
+				dev->stats.tx_fifo_errors++;
 
 				printk(KERN_ERR "%s: Tx: ERR_BUF|ERR_UFL, restarting\n",
 				       dev->name);
@@ -797,13 +796,13 @@ static void lance_tx_pio(struct net_device *dev)
 
 			/* One collision before packet was sent. */
 			if (bits & LE_T1_EONE)
-				lp->stats.collisions++;
+				dev->stats.collisions++;
 
 			/* More than one collision, be optimistic. */
 			if (bits & LE_T1_EMORE)
-				lp->stats.collisions += 2;
+				dev->stats.collisions += 2;
 
-			lp->stats.tx_packets++;
+			dev->stats.tx_packets++;
 		}
 
 		j = TX_NEXT(j);
@@ -844,10 +843,10 @@ static irqreturn_t lance_interrupt(int irq, void *dev_id)
 		lp->tx(dev);
 
 	if (csr0 & LE_C0_BABL)
-		lp->stats.tx_errors++;
+		dev->stats.tx_errors++;
 
 	if (csr0 & LE_C0_MISS)
-		lp->stats.rx_errors++;
+		dev->stats.rx_errors++;
 
 	if (csr0 & LE_C0_MERR) {
 		if (lp->dregs) {
@@ -1127,7 +1126,7 @@ static int lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	spin_lock_irq(&lp->lock);
 
-	lp->stats.tx_bytes += len;
+	dev->stats.tx_bytes += len;
 
 	entry = lp->tx_new & TX_RING_MOD_MASK;
 	if (lp->pio_buffer) {
@@ -1170,13 +1169,6 @@ static int lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	return 0;
 }
 
-static struct net_device_stats *lance_get_stats(struct net_device *dev)
-{
-	struct lance_private *lp = netdev_priv(dev);
-
-	return &lp->stats;
-}
-
 /* taken from the depca driver */
 static void lance_load_multicast(struct net_device *dev)
 {
@@ -1463,7 +1455,6 @@ no_link_test:
 	dev->hard_start_xmit = &lance_start_xmit;
 	dev->tx_timeout = &lance_tx_timeout;
 	dev->watchdog_timeo = 5*HZ;
-	dev->get_stats = &lance_get_stats;
 	dev->set_multicast_list = &lance_set_multicast;
 	dev->ethtool_ops = &sparc_lance_ethtool_ops;