diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index d195131d06f2..7ff02d89c31d 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -461,16 +461,13 @@ static int set_rq_size(struct mlx5_ib_dev *dev, struct ib_qp_cap *cap,
 
 		if (ucmd) {
 			qp->rq.wqe_cnt = ucmd->rq_wqe_count;
-			if (ucmd->rq_wqe_shift > BITS_PER_BYTE * sizeof(ucmd->rq_wqe_shift))
-				return -EINVAL;
 			qp->rq.wqe_shift = ucmd->rq_wqe_shift;
-			if ((1 << qp->rq.wqe_shift) /
-				    sizeof(struct mlx5_wqe_data_seg) <
-			    wq_sig)
+			if (check_shl_overflow(1, qp->rq.wqe_shift, &wqe_size))
+				return -EINVAL;
+			if (wqe_size / sizeof(struct mlx5_wqe_data_seg) < wq_sig)
 				return -EINVAL;
 			qp->rq.max_gs =
-				(1 << qp->rq.wqe_shift) /
-					sizeof(struct mlx5_wqe_data_seg) -
+				wqe_size / sizeof(struct mlx5_wqe_data_seg) -
 				wq_sig;
 			qp->rq.max_post = qp->rq.wqe_cnt;
 		} else {