net: use skb_fill_page_desc() in zerocopy_sg_from_iovec()

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/datagram.c b/net/core/datagram.c
index f987fae..bec0867 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -652,8 +652,7 @@
 		while (len) {
 			int off = base & ~PAGE_MASK;
 			int size = min_t(int, len, PAGE_SIZE - off);
-			__skb_fill_page_desc(skb, i, page[i], off, size);
-			skb_shinfo(skb)->nr_frags++;
+			skb_fill_page_desc(skb, i, page[i], off, size);
 			/* increase sk_wmem_alloc */
 			base += size;
 			len -= size;