typhoon: convert to SKB paged frag API.

Signed-off-by: NIan Campbell <ian.campbell@citrix.com>
Cc: David Dillow <dave@thedillows.org>
Cc: netdev@vger.kernel.org
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/3com/typhoon.c

@@ -819,8 +819,7 @@ typhoon_start_tx(struct sk_buff *skb, struct net_device *dev)
 			typhoon_inc_tx_index(&txRing->lastWrite, 1);
 
 			len = frag->size;
-			frag_addr = (void *) page_address(frag->page) +
-						frag->page_offset;
+			frag_addr = skb_frag_address(frag);
 			skb_dma = pci_map_single(tp->tx_pdev, frag_addr, len,
 					 PCI_DMA_TODEVICE);
 			txd->flags = TYPHOON_FRAG_DESC | TYPHOON_DESC_VALID;