new helper: memcpy_from_msg()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 425942d..0d0766e 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1659,7 +1659,7 @@
 
 	SOCK_DEBUG(sk, "SK %p: Copy user data (%Zd bytes).\n", sk, len);
 
-	err = memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len);
+	err = memcpy_from_msg(skb_put(skb, len), msg, len);
 	if (err) {
 		kfree_skb(skb);
 		err = -EFAULT;