r8169: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
Cc: Francois Romieu <romieu@fr.zoreil.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 1cf8c3c..835bbb5 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -5027,7 +5027,7 @@
 
 		txd = tp->TxDescArray + entry;
 		len = frag->size;
-		addr = ((void *) page_address(frag->page)) + frag->page_offset;
+		addr = skb_frag_address(frag);
 		mapping = dma_map_single(d, addr, len, DMA_TO_DEVICE);
 		if (unlikely(dma_mapping_error(d, mapping))) {
 			if (net_ratelimit())