switch ipxrtr_route_packet() from iovec to msghdr

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

include/net/ipx.h

@@ -150,7 +150,7 @@ int ipxrtr_add_route(__be32 network, struct ipx_interface *intrfc,
 		     unsigned char *node);
 void ipxrtr_del_routes(struct ipx_interface *intrfc);
 int ipxrtr_route_packet(struct sock *sk, struct sockaddr_ipx *usipx,
-			struct iovec *iov, size_t len, int noblock);
+			struct msghdr *msg, size_t len, int noblock);
 int ipxrtr_route_skb(struct sk_buff *skb);
 struct ipx_route *ipxrtr_lookup(__be32 net);
 int ipxrtr_ioctl(unsigned int cmd, void __user *arg);

net/ipx/af_ipx.c

@@ -1745,8 +1745,7 @@ static int ipx_sendmsg(struct kiocb *iocb, struct socket *sock,
 		memcpy(usipx->sipx_node, ipxs->dest_addr.node, IPX_NODE_LEN);
 	}
 
-	rc = ipxrtr_route_packet(sk, usipx, msg->msg_iov, len,
-				 flags & MSG_DONTWAIT);
+	rc = ipxrtr_route_packet(sk, usipx, msg, len, flags & MSG_DONTWAIT);
 	if (rc >= 0)
 		rc = len;
 out:

net/ipx/ipx_route.c

@@ -165,7 +165,7 @@ int ipxrtr_route_skb(struct sk_buff *skb)
  * Route an outgoing frame from a socket.
  */
 int ipxrtr_route_packet(struct sock *sk, struct sockaddr_ipx *usipx,
-			struct iovec *iov, size_t len, int noblock)
+			struct msghdr *msg, size_t len, int noblock)
 {
 	struct sk_buff *skb;
 	struct ipx_sock *ipxs = ipx_sk(sk);
@@ -229,7 +229,7 @@ int ipxrtr_route_packet(struct sock *sk, struct sockaddr_ipx *usipx,
 	memcpy(ipx->ipx_dest.node, usipx->sipx_node, IPX_NODE_LEN);
 	ipx->ipx_dest.sock		= usipx->sipx_port;
 
-	rc = memcpy_fromiovec(skb_put(skb, len), iov, len);
+	rc = memcpy_from_msg(skb_put(skb, len), msg, len);
 	if (rc) {
 		kfree_skb(skb);
 		goto out_put;