IB/rxe: Remove an unused variable and an unused argument

The variable 'av' is not used so remove it. Since that change
removes the last user of the 'wqe' argument, remove that argument
too.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Andrew Boyer <andrew.boyer@dell.com>
Cc: Moni Shoua <monis@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/sw/rxe/rxe_req.c

@@ -361,19 +361,14 @@ static inline int check_init_depth(struct rxe_qp *qp, struct rxe_send_wqe *wqe)
 	return -EAGAIN;
 }
 
-static inline int get_mtu(struct rxe_qp *qp, struct rxe_send_wqe *wqe)
+static inline int get_mtu(struct rxe_qp *qp)
 {
 	struct rxe_dev *rxe = to_rdev(qp->ibqp.device);
-	struct rxe_port *port;
-	struct rxe_av *av;
 
 	if ((qp_type(qp) == IB_QPT_RC) || (qp_type(qp) == IB_QPT_UC))
 		return qp->mtu;
 
-	av = &wqe->av;
-	port = &rxe->port;
-
-	return port->mtu_cap;
+	return rxe->port.mtu_cap;
 }
 
 static struct sk_buff *init_req_packet(struct rxe_qp *qp,
@@ -679,7 +674,7 @@ next_wqe:
 			goto exit;
 	}
 
-	mtu = get_mtu(qp, wqe);
+	mtu = get_mtu(qp);
 	payload = (mask & RXE_WRITE_OR_SEND) ? wqe->dma.resid : 0;
 	if (payload > mtu) {
 		if (qp_type(qp) == IB_QPT_UD) {