RDMA/cm: Remove needless cm_id variable

Just put the expression in the only reader

Link: https://lore.kernel.org/r/20200506074701.9775-10-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/core/cm.c

@@ -1958,7 +1958,6 @@ static struct cm_id_private * cm_match_req(struct cm_work *work,
 	struct cm_id_private *listen_cm_id_priv, *cur_cm_id_priv;
 	struct cm_timewait_info *timewait_info;
 	struct cm_req_msg *req_msg;
-	struct ib_cm_id *cm_id;
 
 	req_msg = (struct cm_req_msg *)work->mad_recv_wc->recv_buf.mad;
 
@@ -1988,8 +1987,7 @@ static struct cm_id_private * cm_match_req(struct cm_work *work,
 			     IB_CM_REJ_STALE_CONN, CM_MSG_RESPONSE_REQ,
 			     NULL, 0);
 		if (cur_cm_id_priv) {
-			cm_id = &cur_cm_id_priv->id;
-			ib_send_cm_dreq(cm_id, NULL, 0);
+			ib_send_cm_dreq(&cur_cm_id_priv->id, NULL, 0);
 			cm_deref_id(cur_cm_id_priv);
 		}
 		return NULL;
@@ -2433,7 +2431,6 @@ static int cm_rep_handler(struct cm_work *work)
 	struct cm_rep_msg *rep_msg;
 	int ret;
 	struct cm_id_private *cur_cm_id_priv;
-	struct ib_cm_id *cm_id;
 	struct cm_timewait_info *timewait_info;
 
 	rep_msg = (struct cm_rep_msg *)work->mad_recv_wc->recv_buf.mad;
@@ -2499,8 +2496,7 @@ static int cm_rep_handler(struct cm_work *work)
 			IBA_GET(CM_REP_REMOTE_COMM_ID, rep_msg));
 
 		if (cur_cm_id_priv) {
-			cm_id = &cur_cm_id_priv->id;
-			ib_send_cm_dreq(cm_id, NULL, 0);
+			ib_send_cm_dreq(&cur_cm_id_priv->id, NULL, 0);
 			cm_deref_id(cur_cm_id_priv);
 		}