1 files changed, 45 insertions, 22 deletions

diff --git a/drivers/net/enc28j60.c b/drivers/net/enc28j60.c
index e1b441effbbe..b0ef46c51a9d 100644
--- a/drivers/net/enc28j60.c
+++ b/drivers/net/enc28j60.c
@@ -196,16 +196,32 @@ static void enc28j60_soft_reset(struct enc28j60_net *priv)
  */
 static void enc28j60_set_bank(struct enc28j60_net *priv, u8 addr)
 {
-	if ((addr & BANK_MASK) != priv->bank) {
-		u8 b = (addr & BANK_MASK) >> 5;
+	u8 b = (addr & BANK_MASK) >> 5;
 
-		if (b != (ECON1_BSEL1 | ECON1_BSEL0))
+	/* These registers (EIE, EIR, ESTAT, ECON2, ECON1)
+	 * are present in all banks, no need to switch bank
+	 */
+	if (addr >= EIE && addr <= ECON1)
+		return;
+
+	/* Clear or set each bank selection bit as needed */
+	if ((b & ECON1_BSEL0) != (priv->bank & ECON1_BSEL0)) {
+		if (b & ECON1_BSEL0)
+			spi_write_op(priv, ENC28J60_BIT_FIELD_SET, ECON1,
+					ECON1_BSEL0);
+		else
 			spi_write_op(priv, ENC28J60_BIT_FIELD_CLR, ECON1,
-				     ECON1_BSEL1 | ECON1_BSEL0);
-		if (b != 0)
-			spi_write_op(priv, ENC28J60_BIT_FIELD_SET, ECON1, b);
-		priv->bank = (addr & BANK_MASK);
+					ECON1_BSEL0);
 	}
+	if ((b & ECON1_BSEL1) != (priv->bank & ECON1_BSEL1)) {
+		if (b & ECON1_BSEL1)
+			spi_write_op(priv, ENC28J60_BIT_FIELD_SET, ECON1,
+					ECON1_BSEL1);
+		else
+			spi_write_op(priv, ENC28J60_BIT_FIELD_CLR, ECON1,
+					ECON1_BSEL1);
+	}
+	priv->bank = b;
 }
 
 /*
@@ -477,12 +493,10 @@ static int enc28j60_set_hw_macaddr(struct net_device *ndev)
 
 	mutex_lock(&priv->lock);
 	if (!priv->hw_enable) {
-		if (netif_msg_drv(priv)) {
-			DECLARE_MAC_BUF(mac);
+		if (netif_msg_drv(priv))
 			printk(KERN_INFO DRV_NAME
-				": %s: Setting MAC address to %s\n",
-				ndev->name, print_mac(mac, ndev->dev_addr));
-		}
+				": %s: Setting MAC address to %pM\n",
+				ndev->name, ndev->dev_addr);
 		/* NOTE: MAC address in ENC28J60 is byte-backward */
 		nolock_regb_write(priv, MAADR5, ndev->dev_addr[0]);
 		nolock_regb_write(priv, MAADR4, ndev->dev_addr[1]);
@@ -568,6 +582,17 @@ static u16 erxrdpt_workaround(u16 next_packet_ptr, u16 start, u16 end)
 	return erxrdpt;
 }
 
+/*
+ * Calculate wrap around when reading beyond the end of the RX buffer
+ */
+static u16 rx_packet_start(u16 ptr)
+{
+	if (ptr + RSV_SIZE > RXEND_INIT)
+		return (ptr + RSV_SIZE) - (RXEND_INIT - RXSTART_INIT + 1);
+	else
+		return ptr + RSV_SIZE;
+}
+
 static void nolock_rxfifo_init(struct enc28j60_net *priv, u16 start, u16 end)
 {
 	u16 erxrdpt;
@@ -938,16 +963,16 @@ static void enc28j60_hw_rx(struct net_device *ndev)
 			skb->dev = ndev;
 			skb_reserve(skb, NET_IP_ALIGN);
 			/* copy the packet from the receive buffer */
-			enc28j60_mem_read(priv, priv->next_pk_ptr + sizeof(rsv),
-					len, skb_put(skb, len));
+			enc28j60_mem_read(priv,
+				rx_packet_start(priv->next_pk_ptr),
+				len, skb_put(skb, len));
 			if (netif_msg_pktdata(priv))
 				dump_packet(__func__, skb->len, skb->data);
 			skb->protocol = eth_type_trans(skb, ndev);
 			/* update statistics */
 			ndev->stats.rx_packets++;
 			ndev->stats.rx_bytes += len;
-			ndev->last_rx = jiffies;
-			netif_rx(skb);
+			netif_rx_ni(skb);
 		}
 	}
 	/*
@@ -1328,11 +1353,9 @@ static int enc28j60_net_open(struct net_device *dev)
 		printk(KERN_DEBUG DRV_NAME ": %s() enter\n", __func__);
 
 	if (!is_valid_ether_addr(dev->dev_addr)) {
-		if (netif_msg_ifup(priv)) {
-			DECLARE_MAC_BUF(mac);
-			dev_err(&dev->dev, "invalid MAC address %s\n",
-				print_mac(mac, dev->dev_addr));
-		}
+		if (netif_msg_ifup(priv))
+			dev_err(&dev->dev, "invalid MAC address %pM\n",
+				dev->dev_addr);
 		return -EADDRNOTAVAIL;
 	}
 	/* Reset the hardware here (and take it out of low power mode) */
@@ -1453,7 +1476,7 @@ enc28j60_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
 	strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
 	strlcpy(info->version, DRV_VERSION, sizeof(info->version));
 	strlcpy(info->bus_info,
-		dev->dev.parent->bus_id, sizeof(info->bus_info));
+		dev_name(dev->dev.parent), sizeof(info->bus_info));
 }
 
 static int