1 files changed, 11 insertions, 6 deletions

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index fb841c815b5d..88041e578870 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1016,6 +1016,7 @@ static void tx_init(struct sky2_port *sky2)
         le = get_tx_le(sky2, &sky2->tx_prod);
         le->addr = 0;
         le->opcode = OP_ADDR64 | HW_OWNER;
+        sky2->tx_last_upper = 0;
 }
 
 static inline struct tx_ring_info *tx_le_re(struct sky2_port *sky2,
@@ -1573,8 +1574,9 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
         struct sky2_tx_le *le = NULL;
         struct tx_ring_info *re;
         unsigned i, len;
-        u16 slot;
         dma_addr_t mapping;
+        u32 upper;
+        u16 slot;
         u16 mss;
         u8 ctrl;
 
@@ -1593,9 +1595,11 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
                        dev->name, slot, skb->len);
 
         /* Send high bits if needed */
-        if (sizeof(dma_addr_t) > sizeof(u32)) {
+        upper = upper_32_bits(mapping);
+        if (upper != sky2->tx_last_upper) {
                 le = get_tx_le(sky2, &slot);
-                le->addr = cpu_to_le32(upper_32_bits(mapping));
+                le->addr = cpu_to_le32(upper);
+                sky2->tx_last_upper = upper;
                 le->opcode = OP_ADDR64 | HW_OWNER;
         }
 
@@ -1681,10 +1685,11 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
                 if (pci_dma_mapping_error(hw->pdev, mapping))
                         goto mapping_unwind;
 
-                if (sizeof(dma_addr_t) > sizeof(u32)) {
+                upper = upper_32_bits(mapping);
+                if (upper != sky2->tx_last_upper) {
                         le = get_tx_le(sky2, &slot);
-                        le->addr = cpu_to_le32(upper_32_bits(mapping));
-                        le->ctrl = 0;
+                        le->addr = cpu_to_le32(upper);
+                        sky2->tx_last_upper = upper;
                         le->opcode = OP_ADDR64 | HW_OWNER;
                 }