1 files changed, 11 insertions, 16 deletions

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index a74fc11a6482..bc15940ce1bc 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -944,7 +944,6 @@ static void tx_init(struct sky2_port *sky2)
 	le = get_tx_le(sky2);
 	le->addr = 0;
 	le->opcode = OP_ADDR64 | HW_OWNER;
-	sky2->tx_addr64 = 0;
 }
 
 static inline struct tx_ring_info *tx_le_re(struct sky2_port *sky2,
@@ -978,13 +977,11 @@ static void sky2_rx_add(struct sky2_port *sky2,  u8 op,
 			dma_addr_t map, unsigned len)
 {
 	struct sky2_rx_le *le;
-	u32 hi = upper_32_bits(map);
 
-	if (sky2->rx_addr64 != hi) {
+	if (sizeof(dma_addr_t) > sizeof(u32)) {
 		le = sky2_next_rx(sky2);
-		le->addr = cpu_to_le32(hi);
+		le->addr = cpu_to_le32(upper_32_bits(map));
 		le->opcode = OP_ADDR64 | HW_OWNER;
-		sky2->rx_addr64 = upper_32_bits(map + len);
 	}
 
 	le = sky2_next_rx(sky2);
@@ -1168,6 +1165,7 @@ static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp
 			     TX_VLAN_TAG_OFF);
 	}
 
+	sky2_read32(hw, B0_Y2_SP_LISR);
 	napi_enable(&hw->napi);
 	netif_tx_unlock_bh(dev);
 }
@@ -1479,7 +1477,6 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
 	struct tx_ring_info *re;
 	unsigned i, len;
 	dma_addr_t mapping;
-	u32 addr64;
 	u16 mss;
 	u8 ctrl;
 
@@ -1492,15 +1489,12 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
 
 	len = skb_headlen(skb);
 	mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
-	addr64 = upper_32_bits(mapping);
 
-	/* Send high bits if changed or crosses boundary */
-	if (addr64 != sky2->tx_addr64 ||
-	    upper_32_bits(mapping + len) != sky2->tx_addr64) {
+	/* Send high bits if needed */
+	if (sizeof(dma_addr_t) > sizeof(u32)) {
 		le = get_tx_le(sky2);
-		le->addr = cpu_to_le32(addr64);
+		le->addr = cpu_to_le32(upper_32_bits(mapping));
 		le->opcode = OP_ADDR64 | HW_OWNER;
-		sky2->tx_addr64 = upper_32_bits(mapping + len);
 	}
 
 	/* Check for TCP Segmentation Offload */
@@ -1581,13 +1575,12 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
 
 		mapping = pci_map_page(hw->pdev, frag->page, frag->page_offset,
 				       frag->size, PCI_DMA_TODEVICE);
-		addr64 = upper_32_bits(mapping);
-		if (addr64 != sky2->tx_addr64) {
+
+		if (sizeof(dma_addr_t) > sizeof(u32)) {
 			le = get_tx_le(sky2);
-			le->addr = cpu_to_le32(addr64);
+			le->addr = cpu_to_le32(upper_32_bits(mapping));
 			le->ctrl = 0;
 			le->opcode = OP_ADDR64 | HW_OWNER;
-			sky2->tx_addr64 = addr64;
 		}
 
 		le = get_tx_le(sky2);
@@ -2043,6 +2036,7 @@ static int sky2_change_mtu(struct net_device *dev, int new_mtu)
 	err = sky2_rx_start(sky2);
 	sky2_write32(hw, B0_IMSK, imask);
 
+	sky2_read32(hw, B0_Y2_SP_LISR);
 	napi_enable(&hw->napi);
 
 	if (err)
@@ -3861,6 +3855,7 @@ static int sky2_debug_show(struct seq_file *seq, void *v)
 		   last = sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_PUT_IDX)),
 		   sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_LAST_IDX)));
 
+	sky2_read32(hw, B0_Y2_SP_LISR);
 	napi_enable(&hw->napi);
 	return 0;
 }