diff --git a/drivers/infiniband/sw/rxe/rxe_cq.c b/drivers/infiniband/sw/rxe/rxe_cq.c
index c9593e472753..2ee4b08b00ea 100644
--- a/drivers/infiniband/sw/rxe/rxe_cq.c
+++ b/drivers/infiniband/sw/rxe/rxe_cq.c
@@ -83,7 +83,7 @@ static void rxe_send_complete(unsigned long data)
 
 int rxe_cq_from_init(struct rxe_dev *rxe, struct rxe_cq *cq, int cqe,
 		     int comp_vector, struct ib_ucontext *context,
-		     struct ib_udata *udata)
+		     struct rxe_create_cq_resp __user *uresp)
 {
 	int err;
 
@@ -94,15 +94,15 @@ int rxe_cq_from_init(struct rxe_dev *rxe, struct rxe_cq *cq, int cqe,
 		return -ENOMEM;
 	}
 
-	err = do_mmap_info(rxe, udata, false, context, cq->queue->buf,
-			   cq->queue->buf_size, &cq->queue->ip);
+	err = do_mmap_info(rxe, uresp ? &uresp->mi : NULL, context,
+			   cq->queue->buf, cq->queue->buf_size, &cq->queue->ip);
 	if (err) {
 		kvfree(cq->queue->buf);
 		kfree(cq->queue);
 		return err;
 	}
 
-	if (udata)
+	if (uresp)
 		cq->is_user = 1;
 
 	cq->is_dying = false;
@@ -114,14 +114,15 @@ int rxe_cq_from_init(struct rxe_dev *rxe, struct rxe_cq *cq, int cqe,
 	return 0;
 }
 
-int rxe_cq_resize_queue(struct rxe_cq *cq, int cqe, struct ib_udata *udata)
+int rxe_cq_resize_queue(struct rxe_cq *cq, int cqe,
+			struct rxe_resize_cq_resp __user *uresp)
 {
 	int err;
 
 	err = rxe_queue_resize(cq->queue, (unsigned int *)&cqe,
 			       sizeof(struct rxe_cqe),
 			       cq->queue->ip ? cq->queue->ip->context : NULL,
-			       udata, NULL, &cq->cq_lock);
+			       uresp ? &uresp->mi : NULL, NULL, &cq->cq_lock);
 	if (!err)
 		cq->ibcq.cqe = cqe;
 
diff --git a/drivers/infiniband/sw/rxe/rxe_loc.h b/drivers/infiniband/sw/rxe/rxe_loc.h
index 31070a696f36..b71023c1c58b 100644
--- a/drivers/infiniband/sw/rxe/rxe_loc.h
+++ b/drivers/infiniband/sw/rxe/rxe_loc.h
@@ -56,9 +56,10 @@ int rxe_cq_chk_attr(struct rxe_dev *rxe, struct rxe_cq *cq,
 
 int rxe_cq_from_init(struct rxe_dev *rxe, struct rxe_cq *cq, int cqe,
 		     int comp_vector, struct ib_ucontext *context,
-		     struct ib_udata *udata);
+		     struct rxe_create_cq_resp __user *uresp);
 
-int rxe_cq_resize_queue(struct rxe_cq *cq, int new_cqe, struct ib_udata *udata);
+int rxe_cq_resize_queue(struct rxe_cq *cq, int new_cqe,
+			struct rxe_resize_cq_resp __user *uresp);
 
 int rxe_cq_post(struct rxe_cq *cq, struct rxe_cqe *cqe, int solicited);
 
@@ -158,7 +159,8 @@ int rxe_mcast_delete(struct rxe_dev *rxe, union ib_gid *mgid);
 int rxe_qp_chk_init(struct rxe_dev *rxe, struct ib_qp_init_attr *init);
 
 int rxe_qp_from_init(struct rxe_dev *rxe, struct rxe_qp *qp, struct rxe_pd *pd,
-		     struct ib_qp_init_attr *init, struct ib_udata *udata,
+		     struct ib_qp_init_attr *init,
+		     struct rxe_create_qp_resp __user *uresp,
 		     struct ib_pd *ibpd);
 
 int rxe_qp_to_init(struct rxe_qp *qp, struct ib_qp_init_attr *init);
@@ -226,11 +228,12 @@ int rxe_srq_chk_attr(struct rxe_dev *rxe, struct rxe_srq *srq,
 
 int rxe_srq_from_init(struct rxe_dev *rxe, struct rxe_srq *srq,
 		      struct ib_srq_init_attr *init,
-		      struct ib_ucontext *context, struct ib_udata *udata);
+		      struct ib_ucontext *context,
+		      struct rxe_create_srq_resp __user *uresp);
 
 int rxe_srq_from_attr(struct rxe_dev *rxe, struct rxe_srq *srq,
 		      struct ib_srq_attr *attr, enum ib_srq_attr_mask mask,
-		      struct ib_udata *udata);
+		      struct rxe_modify_srq_cmd *ucmd);
 
 void rxe_release(struct kref *kref);
 
diff --git a/drivers/infiniband/sw/rxe/rxe_qp.c b/drivers/infiniband/sw/rxe/rxe_qp.c
index 98a7a19146a8..b9f7aa1114b2 100644
--- a/drivers/infiniband/sw/rxe/rxe_qp.c
+++ b/drivers/infiniband/sw/rxe/rxe_qp.c
@@ -216,7 +216,8 @@ static void rxe_qp_init_misc(struct rxe_dev *rxe, struct rxe_qp *qp,
 
 static int rxe_qp_init_req(struct rxe_dev *rxe, struct rxe_qp *qp,
 			   struct ib_qp_init_attr *init,
-			   struct ib_ucontext *context, struct ib_udata *udata)
+			   struct ib_ucontext *context,
+			   struct rxe_create_qp_resp __user *uresp)
 {
 	int err;
 	int wqe_size;
@@ -241,9 +242,9 @@ static int rxe_qp_init_req(struct rxe_dev *rxe, struct rxe_qp *qp,
 	if (!qp->sq.queue)
 		return -ENOMEM;
 
-	err = do_mmap_info(rxe, udata, true,
-			   context, qp->sq.queue->buf,
-			   qp->sq.queue->buf_size, &qp->sq.queue->ip);
+	err = do_mmap_info(rxe, uresp ? &uresp->sq_mi : NULL, context,
+			   qp->sq.queue->buf, qp->sq.queue->buf_size,
+			   &qp->sq.queue->ip);
 
 	if (err) {
 		kvfree(qp->sq.queue->buf);
@@ -274,7 +275,8 @@ static int rxe_qp_init_req(struct rxe_dev *rxe, struct rxe_qp *qp,
 
 static int rxe_qp_init_resp(struct rxe_dev *rxe, struct rxe_qp *qp,
 			    struct ib_qp_init_attr *init,
-			    struct ib_ucontext *context, struct ib_udata *udata)
+			    struct ib_ucontext *context,
+			    struct rxe_create_qp_resp __user *uresp)
 {
 	int err;
 	int wqe_size;
@@ -294,9 +296,8 @@ static int rxe_qp_init_resp(struct rxe_dev *rxe, struct rxe_qp *qp,
 		if (!qp->rq.queue)
 			return -ENOMEM;
 
-		err = do_mmap_info(rxe, udata, false, context,
-				   qp->rq.queue->buf,
-				   qp->rq.queue->buf_size,
+		err = do_mmap_info(rxe, uresp ? &uresp->rq_mi : NULL, context,
+				   qp->rq.queue->buf, qp->rq.queue->buf_size,
 				   &qp->rq.queue->ip);
 		if (err) {
 			kvfree(qp->rq.queue->buf);
@@ -322,14 +323,15 @@ static int rxe_qp_init_resp(struct rxe_dev *rxe, struct rxe_qp *qp,
 
 /* called by the create qp verb */
 int rxe_qp_from_init(struct rxe_dev *rxe, struct rxe_qp *qp, struct rxe_pd *pd,
-		     struct ib_qp_init_attr *init, struct ib_udata *udata,
+		     struct ib_qp_init_attr *init,
+		     struct rxe_create_qp_resp __user *uresp,
 		     struct ib_pd *ibpd)
 {
 	int err;
 	struct rxe_cq *rcq = to_rcq(init->recv_cq);
 	struct rxe_cq *scq = to_rcq(init->send_cq);
 	struct rxe_srq *srq = init->srq ? to_rsrq(init->srq) : NULL;
-	struct ib_ucontext *context = udata ? ibpd->uobject->context : NULL;
+	struct ib_ucontext *context = ibpd->uobject ? ibpd->uobject->context : NULL;
 
 	rxe_add_ref(pd);
 	rxe_add_ref(rcq);
@@ -344,11 +346,11 @@ int rxe_qp_from_init(struct rxe_dev *rxe, struct rxe_qp *qp, struct rxe_pd *pd,
 
 	rxe_qp_init_misc(rxe, qp, init);
 
-	err = rxe_qp_init_req(rxe, qp, init, context, udata);
+	err = rxe_qp_init_req(rxe, qp, init, context, uresp);
 	if (err)
 		goto err1;
 
-	err = rxe_qp_init_resp(rxe, qp, init, context, udata);
+	err = rxe_qp_init_resp(rxe, qp, init, context, uresp);
 	if (err)
 		goto err2;
 
diff --git a/drivers/infiniband/sw/rxe/rxe_queue.c b/drivers/infiniband/sw/rxe/rxe_queue.c
index d14bf496d62d..f84ab4469261 100644
--- a/drivers/infiniband/sw/rxe/rxe_queue.c
+++ b/drivers/infiniband/sw/rxe/rxe_queue.c
@@ -37,35 +37,21 @@
 #include "rxe_queue.h"
 
 int do_mmap_info(struct rxe_dev *rxe,
-		 struct ib_udata *udata,
-		 bool is_req,
+		 struct mminfo __user *outbuf,
 		 struct ib_ucontext *context,
 		 struct rxe_queue_buf *buf,
 		 size_t buf_size,
 		 struct rxe_mmap_info **ip_p)
 {
 	int err;
-	u32 len, offset;
 	struct rxe_mmap_info *ip = NULL;
 
-	if (udata) {
-		if (is_req) {
-			len = udata->outlen - sizeof(struct mminfo);
-			offset = sizeof(struct mminfo);
-		} else {
-			len = udata->outlen;
-			offset = 0;
-		}
-
-		if (len < sizeof(ip->info))
-			goto err1;
-
+	if (outbuf) {
 		ip = rxe_create_mmap_info(rxe, buf_size, context, buf);
 		if (!ip)
 			goto err1;
 
-		err = copy_to_user(udata->outbuf + offset, &ip->info,
-				   sizeof(ip->info));
+		err = copy_to_user(outbuf, &ip->info, sizeof(ip->info));
 		if (err)
 			goto err2;
 
@@ -171,7 +157,7 @@ int rxe_queue_resize(struct rxe_queue *q,
 		     unsigned int *num_elem_p,
 		     unsigned int elem_size,
 		     struct ib_ucontext *context,
-		     struct ib_udata *udata,
+		     struct mminfo __user *outbuf,
 		     spinlock_t *producer_lock,
 		     spinlock_t *consumer_lock)
 {
@@ -184,7 +170,7 @@ int rxe_queue_resize(struct rxe_queue *q,
 	if (!new_q)
 		return -ENOMEM;
 
-	err = do_mmap_info(new_q->rxe, udata, false, context, new_q->buf,
+	err = do_mmap_info(new_q->rxe, outbuf, context, new_q->buf,
 			   new_q->buf_size, &new_q->ip);
 	if (err) {
 		vfree(new_q->buf);
diff --git a/drivers/infiniband/sw/rxe/rxe_queue.h b/drivers/infiniband/sw/rxe/rxe_queue.h
index 8c8641c87817..79ba4b320054 100644
--- a/drivers/infiniband/sw/rxe/rxe_queue.h
+++ b/drivers/infiniband/sw/rxe/rxe_queue.h
@@ -77,8 +77,7 @@ struct rxe_queue {
 };
 
 int do_mmap_info(struct rxe_dev *rxe,
-		 struct ib_udata *udata,
-		 bool is_req,
+		 struct mminfo __user *outbuf,
 		 struct ib_ucontext *context,
 		 struct rxe_queue_buf *buf,
 		 size_t buf_size,
@@ -94,7 +93,7 @@ int rxe_queue_resize(struct rxe_queue *q,
 		     unsigned int *num_elem_p,
 		     unsigned int elem_size,
 		     struct ib_ucontext *context,
-		     struct ib_udata *udata,
+		     struct mminfo __user *outbuf,
 		     /* Protect producers while resizing queue */
 		     spinlock_t *producer_lock,
 		     /* Protect consumers while resizing queue */
diff --git a/drivers/infiniband/sw/rxe/rxe_srq.c b/drivers/infiniband/sw/rxe/rxe_srq.c
index efc832a2d7c6..0d6c04ba7fc3 100644
--- a/drivers/infiniband/sw/rxe/rxe_srq.c
+++ b/drivers/infiniband/sw/rxe/rxe_srq.c
@@ -99,7 +99,8 @@ err1:
 
 int rxe_srq_from_init(struct rxe_dev *rxe, struct rxe_srq *srq,
 		      struct ib_srq_init_attr *init,
-		      struct ib_ucontext *context, struct ib_udata *udata)
+		      struct ib_ucontext *context,
+		      struct rxe_create_srq_resp __user *uresp)
 {
 	int err;
 	int srq_wqe_size;
@@ -126,55 +127,41 @@ int rxe_srq_from_init(struct rxe_dev *rxe, struct rxe_srq *srq,
 
 	srq->rq.queue = q;
 
-	err = do_mmap_info(rxe, udata, false, context, q->buf,
+	err = do_mmap_info(rxe, uresp ? &uresp->mi : NULL, context, q->buf,
 			   q->buf_size, &q->ip);
 	if (err)
 		return err;
 
-	if (udata && udata->outlen >= sizeof(struct mminfo) + sizeof(u32)) {
-		if (copy_to_user(udata->outbuf + sizeof(struct mminfo),
-				 &srq->srq_num, sizeof(u32)))
+	if (uresp) {
+		if (copy_to_user(&uresp->srq_num, &srq->srq_num,
+				 sizeof(uresp->srq_num)))
 			return -EFAULT;
 	}
+
 	return 0;
 }
 
 int rxe_srq_from_attr(struct rxe_dev *rxe, struct rxe_srq *srq,
 		      struct ib_srq_attr *attr, enum ib_srq_attr_mask mask,
-		      struct ib_udata *udata)
+		      struct rxe_modify_srq_cmd *ucmd)
 {
 	int err;
 	struct rxe_queue *q = srq->rq.queue;
-	struct mminfo mi = { .offset = 1, .size = 0};
+	struct mminfo __user *mi = NULL;
 
 	if (mask & IB_SRQ_MAX_WR) {
-		/* Check that we can write the mminfo struct to user space */
-		if (udata && udata->inlen >= sizeof(__u64)) {
-			__u64 mi_addr;
-
-			/* Get address of user space mminfo struct */
-			err = ib_copy_from_udata(&mi_addr, udata,
-						 sizeof(mi_addr));
-			if (err)
-				goto err1;
-
-			udata->outbuf = (void __user *)(unsigned long)mi_addr;
-			udata->outlen = sizeof(mi);
-
-			if (!access_ok(VERIFY_WRITE,
-				       (void __user *)udata->outbuf,
-					udata->outlen)) {
-				err = -EFAULT;
-				goto err1;
-			}
-		}
+		/*
+		 * This is completely screwed up, the response is supposed to
+		 * be in the outbuf not like this.
+		 */
+		mi = u64_to_user_ptr(ucmd->mmap_info_addr);
 
 		err = rxe_queue_resize(q, &attr->max_wr,
 				       rcv_wqe_size(srq->rq.max_sge),
 				       srq->rq.queue->ip ?
 						srq->rq.queue->ip->context :
 						NULL,
-				       udata, &srq->rq.producer_lock,
+				       mi, &srq->rq.producer_lock,
 				       &srq->rq.consumer_lock);
 		if (err)
 			goto err2;
@@ -188,6 +175,5 @@ int rxe_srq_from_attr(struct rxe_dev *rxe, struct rxe_srq *srq,
 err2:
 	rxe_queue_cleanup(q);
 	srq->rq.queue = NULL;
-err1:
 	return err;
 }
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c
index 34539c3242a8..ced79e49234b 100644
--- a/drivers/infiniband/sw/rxe/rxe_verbs.c
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.c
@@ -407,6 +407,13 @@ static struct ib_srq *rxe_create_srq(struct ib_pd *ibpd,
 	struct rxe_pd *pd = to_rpd(ibpd);
 	struct rxe_srq *srq;
 	struct ib_ucontext *context = udata ? ibpd->uobject->context : NULL;
+	struct rxe_create_srq_resp __user *uresp = NULL;
+
+	if (udata) {
+		if (udata->outlen < sizeof(*uresp))
+			return ERR_PTR(-EINVAL);
+		uresp = udata->outbuf;
+	}
 
 	err = rxe_srq_chk_attr(rxe, NULL, &init->attr, IB_SRQ_INIT_MASK);
 	if (err)
@@ -422,7 +429,7 @@ static struct ib_srq *rxe_create_srq(struct ib_pd *ibpd,
 	rxe_add_ref(pd);
 	srq->pd = pd;
 
-	err = rxe_srq_from_init(rxe, srq, init, context, udata);
+	err = rxe_srq_from_init(rxe, srq, init, context, uresp);
 	if (err)
 		goto err2;
 
@@ -443,12 +450,22 @@ static int rxe_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
 	int err;
 	struct rxe_srq *srq = to_rsrq(ibsrq);
 	struct rxe_dev *rxe = to_rdev(ibsrq->device);
+	struct rxe_modify_srq_cmd ucmd = {};
+
+	if (udata) {
+		if (udata->inlen < sizeof(ucmd))
+			return -EINVAL;
+
+		err = ib_copy_from_udata(&ucmd, udata, sizeof(ucmd));
+		if (err)
+			return err;
+	}
 
 	err = rxe_srq_chk_attr(rxe, srq, attr, mask);
 	if (err)
 		goto err1;
 
-	err = rxe_srq_from_attr(rxe, srq, attr, mask, udata);
+	err = rxe_srq_from_attr(rxe, srq, attr, mask, &ucmd);
 	if (err)
 		goto err1;
 
@@ -517,6 +534,13 @@ static struct ib_qp *rxe_create_qp(struct ib_pd *ibpd,
 	struct rxe_dev *rxe = to_rdev(ibpd->device);
 	struct rxe_pd *pd = to_rpd(ibpd);
 	struct rxe_qp *qp;
+	struct rxe_create_qp_resp __user *uresp = NULL;
+
+	if (udata) {
+		if (udata->outlen < sizeof(*uresp))
+			return ERR_PTR(-EINVAL);
+		uresp = udata->outbuf;
+	}
 
 	err = rxe_qp_chk_init(rxe, init);
 	if (err)
@@ -538,7 +562,7 @@ static struct ib_qp *rxe_create_qp(struct ib_pd *ibpd,
 
 	rxe_add_index(qp);
 
-	err = rxe_qp_from_init(rxe, qp, pd, init, udata, ibpd);
+	err = rxe_qp_from_init(rxe, qp, pd, init, uresp, ibpd);
 	if (err)
 		goto err3;
 
@@ -888,6 +912,13 @@ static struct ib_cq *rxe_create_cq(struct ib_device *dev,
 	int err;
 	struct rxe_dev *rxe = to_rdev(dev);
 	struct rxe_cq *cq;
+	struct rxe_create_cq_resp __user *uresp = NULL;
+
+	if (udata) {
+		if (udata->outlen < sizeof(*uresp))
+			return ERR_PTR(-EINVAL);
+		uresp = udata->outbuf;
+	}
 
 	if (attr->flags)
 		return ERR_PTR(-EINVAL);
@@ -903,7 +934,7 @@ static struct ib_cq *rxe_create_cq(struct ib_device *dev,
 	}
 
 	err = rxe_cq_from_init(rxe, cq, attr->cqe, attr->comp_vector,
-			       context, udata);
+			       context, uresp);
 	if (err)
 		goto err2;
 
@@ -930,12 +961,19 @@ static int rxe_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata)
 	int err;
 	struct rxe_cq *cq = to_rcq(ibcq);
 	struct rxe_dev *rxe = to_rdev(ibcq->device);
+	struct rxe_resize_cq_resp __user *uresp = NULL;
+
+	if (udata) {
+		if (udata->outlen < sizeof(*uresp))
+			return -EINVAL;
+		uresp = udata->outbuf;
+	}
 
 	err = rxe_cq_chk_attr(rxe, cq, cqe, 0);
 	if (err)
 		goto err1;
 
-	err = rxe_cq_resize_queue(cq, cqe, udata);
+	err = rxe_cq_resize_queue(cq, cqe, uresp);
 	if (err)
 		goto err1;
 
diff --git a/include/uapi/rdma/rdma_user_rxe.h b/include/uapi/rdma/rdma_user_rxe.h
index e3e6852b58eb..b3b1bfc8fa21 100644
--- a/include/uapi/rdma/rdma_user_rxe.h
+++ b/include/uapi/rdma/rdma_user_rxe.h
@@ -144,4 +144,26 @@ struct rxe_recv_wqe {
 	struct rxe_dma_info	dma;
 };
 
+struct rxe_create_cq_resp {
+	struct mminfo mi;
+};
+
+struct rxe_resize_cq_resp {
+	struct mminfo mi;
+};
+
+struct rxe_create_qp_resp {
+	struct mminfo rq_mi;
+	struct mminfo sq_mi;
+};
+
+struct rxe_create_srq_resp {
+	struct mminfo mi;
+	__u32 srq_num;
+};
+
+struct rxe_modify_srq_cmd {
+	__u64 mmap_info_addr;
+};
+
 #endif /* RDMA_USER_RXE_H */