diff --git a/sys/dev/mlx4/mlx4_ib/mlx4_ib_cq.c b/sys/dev/mlx4/mlx4_ib/mlx4_ib_cq.c
--- a/sys/dev/mlx4/mlx4_ib/mlx4_ib_cq.c
+++ b/sys/dev/mlx4/mlx4_ib/mlx4_ib_cq.c
@@ -180,7 +180,6 @@
 	struct mlx4_ib_dev *dev = to_mdev(ibdev);
 	struct mlx4_ib_cq *cq = to_mcq(ibcq);
 	struct mlx4_uar *uar;
-	void *buf_addr;
 	int err;
 	struct mlx4_ib_ucontext *context = rdma_udata_to_drv_context(
 		udata, struct mlx4_ib_ucontext, ibucontext);
@@ -209,7 +208,6 @@
 			goto err_cq;
 		}
 
-		buf_addr = (void *)(unsigned long)ucmd.buf_addr;
 		err = mlx4_ib_get_cq_umem(dev, udata, &cq->buf, &cq->umem,
 					  ucmd.buf_addr, entries);
 		if (err)
@@ -234,8 +232,6 @@
 		if (err)
 			goto err_db;
 
-		buf_addr = &cq->buf.buf;
-
 		uar = &dev->priv_uar;
 	}
 
diff --git a/sys/dev/mlx4/mlx4_ib/mlx4_ib_qp.c b/sys/dev/mlx4/mlx4_ib/mlx4_ib_qp.c
--- a/sys/dev/mlx4/mlx4_ib/mlx4_ib_qp.c
+++ b/sys/dev/mlx4/mlx4_ib/mlx4_ib_qp.c
@@ -1284,7 +1284,6 @@
 {
 	struct mlx4_ib_dev *dev = to_mdev(qp->device);
 	struct mlx4_ib_qp *mqp = to_mqp(qp);
-	struct mlx4_ib_pd *pd;
 
 	if (is_qp0(dev, mqp))
 		mlx4_CLOSE_PORT(dev->dev, mqp->port);
@@ -1298,7 +1297,6 @@
 	if (mqp->counter_index)
 		mlx4_ib_free_qp_counter(dev, mqp);
 
-	pd = get_pd(mqp);
 	destroy_qp_common(dev, mqp, udata);
 
 	if (is_sqp(dev, mqp))