IPoIB: convert to SKB paged frag API.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: linux-rdma@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/infiniband/ulp/ipoib/ipoib_cm.c

@@ -169,7 +169,7 @@ static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev,
 			goto partial_error;
 		skb_fill_page_desc(skb, i, page, 0, PAGE_SIZE);
 
-		mapping[i + 1] = ib_dma_map_page(priv->ca, skb_shinfo(skb)->frags[i].page,
+		mapping[i + 1] = ib_dma_map_page(priv->ca, page,
 						 0, PAGE_SIZE, DMA_FROM_DEVICE);
 		if (unlikely(ib_dma_mapping_error(priv->ca, mapping[i + 1])))
 			goto partial_error;
@@ -537,7 +537,8 @@ static void skb_put_frags(struct sk_buff *skb, unsigned int hdr_space,
 
 		if (length == 0) {
 			/* don't need this page */
-			skb_fill_page_desc(toskb, i, frag->page, 0, PAGE_SIZE);
+			skb_fill_page_desc(toskb, i, skb_frag_page(frag),
+					   0, PAGE_SIZE);
 			--skb_shinfo(skb)->nr_frags;
 		} else {
 			size = min(length, (unsigned) PAGE_SIZE);

drivers/infiniband/ulp/ipoib/ipoib_ib.c

@@ -182,7 +182,7 @@ static struct sk_buff *ipoib_alloc_rx_skb(struct net_device *dev, int id)
 			goto partial_error;
 		skb_fill_page_desc(skb, 0, page, 0, PAGE_SIZE);
 		mapping[1] =
-			ib_dma_map_page(priv->ca, skb_shinfo(skb)->frags[0].page,
+			ib_dma_map_page(priv->ca, page,
 					0, PAGE_SIZE, DMA_FROM_DEVICE);
 		if (unlikely(ib_dma_mapping_error(priv->ca, mapping[1])))
 			goto partial_error;
@@ -323,7 +323,8 @@ static int ipoib_dma_map_tx(struct ib_device *ca,
 
 	for (i = 0; i < skb_shinfo(skb)->nr_frags; ++i) {
 		skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
-		mapping[i + off] = ib_dma_map_page(ca, frag->page,
+		mapping[i + off] = ib_dma_map_page(ca,
+						 skb_frag_page(frag),
 						 frag->page_offset, frag->size,
 						 DMA_TO_DEVICE);
 		if (unlikely(ib_dma_mapping_error(ca, mapping[i + off])))