Merge tag 'v4.18' into rdma.git for-next

Resolve merge conflicts from the -rc cycle against the rdma.git tree:

Conflicts:
 drivers/infiniband/core/uverbs_cmd.c
  - New ifs added to ib_uverbs_ex_create_flow in -rc and for-next
  - Merge removal of file->ucontext in for-next with new code in -rc
 drivers/infiniband/core/uverbs_main.c
  - for-next removed code from ib_uverbs_write() that was modified
    in for-rc

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/cxgb4/mem.c

@@ -774,7 +774,7 @@ static int c4iw_set_page(struct ib_mr *ibmr, u64 addr)
 {
 	struct c4iw_mr *mhp = to_c4iw_mr(ibmr);
 
-	if (unlikely(mhp->mpl_len == mhp->max_mpl_len))
+	if (unlikely(mhp->mpl_len == mhp->attr.pbl_size))
 		return -ENOMEM;
 
 	mhp->mpl[mhp->mpl_len++] = addr;

drivers/infiniband/hw/hfi1/rc.c

@@ -271,7 +271,7 @@ int hfi1_make_rc_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps)
 
 	lockdep_assert_held(&qp->s_lock);
 	ps->s_txreq = get_txreq(ps->dev, qp);
-	if (IS_ERR(ps->s_txreq))
+	if (!ps->s_txreq)
 		goto bail_no_tx;
 
 	if (priv->hdr_type == HFI1_PKT_TYPE_9B) {

drivers/infiniband/hw/hfi1/uc.c

@@ -1,5 +1,5 @@
 /*
- * Copyright(c) 2015, 2016 Intel Corporation.
+ * Copyright(c) 2015 - 2018 Intel Corporation.
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
@@ -72,7 +72,7 @@ int hfi1_make_uc_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps)
 	int middle = 0;
 
 	ps->s_txreq = get_txreq(ps->dev, qp);
-	if (IS_ERR(ps->s_txreq))
+	if (!ps->s_txreq)
 		goto bail_no_tx;
 
 	if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_SEND_OK)) {

drivers/infiniband/hw/hfi1/ud.c

@@ -1,5 +1,5 @@
 /*
- * Copyright(c) 2015, 2016 Intel Corporation.
+ * Copyright(c) 2015 - 2018 Intel Corporation.
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
@@ -503,7 +503,7 @@ int hfi1_make_ud_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps)
 	u32 lid;
 
 	ps->s_txreq = get_txreq(ps->dev, qp);
-	if (IS_ERR(ps->s_txreq))
+	if (!ps->s_txreq)
 		goto bail_no_tx;
 
 	if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_NEXT_SEND_OK)) {

drivers/infiniband/hw/hfi1/verbs_txreq.c

@@ -1,5 +1,5 @@
 /*
- * Copyright(c) 2016 - 2017 Intel Corporation.
+ * Copyright(c) 2016 - 2018 Intel Corporation.
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
@@ -94,7 +94,7 @@ struct verbs_txreq *__get_txreq(struct hfi1_ibdev *dev,
 				struct rvt_qp *qp)
 	__must_hold(&qp->s_lock)
 {
-	struct verbs_txreq *tx = ERR_PTR(-EBUSY);
+	struct verbs_txreq *tx = NULL;
 
 	write_seqlock(&dev->txwait_lock);
 	if (ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK) {

drivers/infiniband/hw/hfi1/verbs_txreq.h

@@ -1,5 +1,5 @@
 /*
- * Copyright(c) 2016 Intel Corporation.
+ * Copyright(c) 2016 - 2018 Intel Corporation.
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
@@ -83,7 +83,7 @@ static inline struct verbs_txreq *get_txreq(struct hfi1_ibdev *dev,
 	if (unlikely(!tx)) {
 		/* call slow path to get the lock */
 		tx = __get_txreq(dev, qp);
-		if (IS_ERR(tx))
+		if (!tx)
 			return tx;
 	}
 	tx->qp = qp;

drivers/infiniband/hw/mlx4/mr.c

@@ -486,8 +486,11 @@ int mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags,
 	}
 
 	if (flags & IB_MR_REREG_ACCESS) {
-		if (ib_access_writable(mr_access_flags) && !mmr->umem->writable)
-			return -EPERM;
+		if (ib_access_writable(mr_access_flags) &&
+		    !mmr->umem->writable) {
+			err = -EPERM;
+			goto release_mpt_entry;
+		}
 
 		err = mlx4_mr_hw_change_access(dev->dev, *pmpt_entry,
 					       convert_access(mr_access_flags));

drivers/infiniband/hw/mlx5/main.c

@@ -3208,8 +3208,8 @@ static int flow_counters_set_data(struct ib_counters *ibcounters,
 	if (!mcounters->hw_cntrs_hndl) {
 		mcounters->hw_cntrs_hndl = mlx5_fc_create(
 			to_mdev(ibcounters->device)->mdev, false);
-		if (!mcounters->hw_cntrs_hndl) {
-			ret = -ENOMEM;
+		if (IS_ERR(mcounters->hw_cntrs_hndl)) {
+			ret = PTR_ERR(mcounters->hw_cntrs_hndl);
 			goto free;
 		}
 		hw_hndl = true;
@@ -3556,29 +3556,35 @@ static struct ib_flow *mlx5_ib_create_flow(struct ib_qp *qp,
 			return ERR_PTR(-ENOMEM);
 
 		err = ib_copy_from_udata(ucmd, udata, required_ucmd_sz);
-		if (err) {
-			kfree(ucmd);
-			return ERR_PTR(err);
-		}
+		if (err)
+			goto free_ucmd;
 	}
 
-	if (flow_attr->priority > MLX5_IB_FLOW_LAST_PRIO)
-		return ERR_PTR(-ENOMEM);
+	if (flow_attr->priority > MLX5_IB_FLOW_LAST_PRIO) {
+		err = -ENOMEM;
+		goto free_ucmd;
+	}
 
 	if (domain != IB_FLOW_DOMAIN_USER ||
 	    flow_attr->port > dev->num_ports ||
 	    (flow_attr->flags & ~(IB_FLOW_ATTR_FLAGS_DONT_TRAP |
-				  IB_FLOW_ATTR_FLAGS_EGRESS)))
-		return ERR_PTR(-EINVAL);
+				  IB_FLOW_ATTR_FLAGS_EGRESS))) {
+		err = -EINVAL;
+		goto free_ucmd;
+	}
 
 	if (is_egress &&
 	    (flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT ||
-	     flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT))
-		return ERR_PTR(-EINVAL);
+	     flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT)) {
+		err = -EINVAL;
+		goto free_ucmd;
+	}
 
 	dst = kzalloc(sizeof(*dst), GFP_KERNEL);
-	if (!dst)
-		return ERR_PTR(-ENOMEM);
+	if (!dst) {
+		err = -ENOMEM;
+		goto free_ucmd;
+	}
 
 	mutex_lock(&dev->flow_db->lock);
 
@@ -3647,8 +3653,8 @@ destroy_ft:
 unlock:
 	mutex_unlock(&dev->flow_db->lock);
 	kfree(dst);
+free_ucmd:
 	kfree(ucmd);
-	kfree(handler);
 	return ERR_PTR(err);
 }
 
@@ -6343,7 +6349,7 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
 	dev->num_ports = max(MLX5_CAP_GEN(mdev, num_ports),
 			     MLX5_CAP_GEN(mdev, num_vhca_ports));
 
-	if (MLX5_VPORT_MANAGER(mdev) &&
+	if (MLX5_ESWITCH_MANAGER(mdev) &&
 	    mlx5_ib_eswitch_mode(mdev->priv.eswitch) == SRIOV_OFFLOADS) {
 		dev->rep = mlx5_ib_vport_rep(mdev->priv.eswitch, 0);
 

drivers/infiniband/hw/mlx5/srq.c

@@ -266,18 +266,24 @@ struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
 
 	desc_size = sizeof(struct mlx5_wqe_srq_next_seg) +
 		    srq->msrq.max_gs * sizeof(struct mlx5_wqe_data_seg);
-	if (desc_size == 0 || srq->msrq.max_gs > desc_size)
-		return ERR_PTR(-EINVAL);
+	if (desc_size == 0 || srq->msrq.max_gs > desc_size) {
+		err = -EINVAL;
+		goto err_srq;
+	}
 	desc_size = roundup_pow_of_two(desc_size);
 	desc_size = max_t(size_t, 32, desc_size);
-	if (desc_size < sizeof(struct mlx5_wqe_srq_next_seg))
-		return ERR_PTR(-EINVAL);
+	if (desc_size < sizeof(struct mlx5_wqe_srq_next_seg)) {
+		err = -EINVAL;
+		goto err_srq;
+	}
 	srq->msrq.max_avail_gather = (desc_size - sizeof(struct mlx5_wqe_srq_next_seg)) /
 		sizeof(struct mlx5_wqe_data_seg);
 	srq->msrq.wqe_shift = ilog2(desc_size);
 	buf_size = srq->msrq.max * desc_size;
-	if (buf_size < desc_size)
-		return ERR_PTR(-EINVAL);
+	if (buf_size < desc_size) {
+		err = -EINVAL;
+		goto err_srq;
+	}
 	in.type = init_attr->srq_type;
 
 	if (pd->uobject)

drivers/infiniband/hw/qedr/verbs.c

@@ -2288,6 +2288,9 @@ int qedr_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 	}
 
 	if (attr_mask & (IB_QP_AV | IB_QP_PATH_MTU)) {
+		if (rdma_protocol_iwarp(&dev->ibdev, 1))
+			return -EINVAL;
+
 		if (attr_mask & IB_QP_PATH_MTU) {
 			if (attr->path_mtu < IB_MTU_256 ||
 			    attr->path_mtu > IB_MTU_4096) {