Merge branch 'merge-fixes' into devel

8 files changed, 85 insertions, 45 deletions

diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index faa7ce318a6d..a47fe64e5c39 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -467,6 +467,31 @@ static int cm_compare_private_data(u8 *private_data,
 	return memcmp(src, dst_data->data, IB_CM_COMPARE_SIZE);
 }
 
+/*
+ * Trivial helpers to strip endian annotation and compare; the
+ * endianness doesn't actually matter since we just need a stable
+ * order for the RB tree.
+ */
+static int be32_lt(__be32 a, __be32 b)
+{
+	return (__force u32) a < (__force u32) b;
+}
+
+static int be32_gt(__be32 a, __be32 b)
+{
+	return (__force u32) a > (__force u32) b;
+}
+
+static int be64_lt(__be64 a, __be64 b)
+{
+	return (__force u64) a < (__force u64) b;
+}
+
+static int be64_gt(__be64 a, __be64 b)
+{
+	return (__force u64) a > (__force u64) b;
+}
+
 static struct cm_id_private * cm_insert_listen(struct cm_id_private *cm_id_priv)
 {
 	struct rb_node **link = &cm.listen_service_table.rb_node;
@@ -492,9 +517,9 @@ static struct cm_id_private * cm_insert_listen(struct cm_id_private *cm_id_priv)
 			link = &(*link)->rb_left;
 		else if (cm_id_priv->id.device > cur_cm_id_priv->id.device)
 			link = &(*link)->rb_right;
-		else if (service_id < cur_cm_id_priv->id.service_id)
+		else if (be64_lt(service_id, cur_cm_id_priv->id.service_id))
 			link = &(*link)->rb_left;
-		else if (service_id > cur_cm_id_priv->id.service_id)
+		else if (be64_gt(service_id, cur_cm_id_priv->id.service_id))
 			link = &(*link)->rb_right;
 		else if (data_cmp < 0)
 			link = &(*link)->rb_left;
@@ -527,9 +552,9 @@ static struct cm_id_private * cm_find_listen(struct ib_device *device,
 			node = node->rb_left;
 		else if (device > cm_id_priv->id.device)
 			node = node->rb_right;
-		else if (service_id < cm_id_priv->id.service_id)
+		else if (be64_lt(service_id, cm_id_priv->id.service_id))
 			node = node->rb_left;
-		else if (service_id > cm_id_priv->id.service_id)
+		else if (be64_gt(service_id, cm_id_priv->id.service_id))
 			node = node->rb_right;
 		else if (data_cmp < 0)
 			node = node->rb_left;
@@ -552,13 +577,13 @@ static struct cm_timewait_info * cm_insert_remote_id(struct cm_timewait_info
 		parent = *link;
 		cur_timewait_info = rb_entry(parent, struct cm_timewait_info,
 					     remote_id_node);
-		if (remote_id < cur_timewait_info->work.remote_id)
+		if (be32_lt(remote_id, cur_timewait_info->work.remote_id))
 			link = &(*link)->rb_left;
-		else if (remote_id > cur_timewait_info->work.remote_id)
+		else if (be32_gt(remote_id, cur_timewait_info->work.remote_id))
 			link = &(*link)->rb_right;
-		else if (remote_ca_guid < cur_timewait_info->remote_ca_guid)
+		else if (be64_lt(remote_ca_guid, cur_timewait_info->remote_ca_guid))
 			link = &(*link)->rb_left;
-		else if (remote_ca_guid > cur_timewait_info->remote_ca_guid)
+		else if (be64_gt(remote_ca_guid, cur_timewait_info->remote_ca_guid))
 			link = &(*link)->rb_right;
 		else
 			return cur_timewait_info;
@@ -578,13 +603,13 @@ static struct cm_timewait_info * cm_find_remote_id(__be64 remote_ca_guid,
 	while (node) {
 		timewait_info = rb_entry(node, struct cm_timewait_info,
 					 remote_id_node);
-		if (remote_id < timewait_info->work.remote_id)
+		if (be32_lt(remote_id, timewait_info->work.remote_id))
 			node = node->rb_left;
-		else if (remote_id > timewait_info->work.remote_id)
+		else if (be32_gt(remote_id, timewait_info->work.remote_id))
 			node = node->rb_right;
-		else if (remote_ca_guid < timewait_info->remote_ca_guid)
+		else if (be64_lt(remote_ca_guid, timewait_info->remote_ca_guid))
 			node = node->rb_left;
-		else if (remote_ca_guid > timewait_info->remote_ca_guid)
+		else if (be64_gt(remote_ca_guid, timewait_info->remote_ca_guid))
 			node = node->rb_right;
 		else
 			return timewait_info;
@@ -605,13 +630,13 @@ static struct cm_timewait_info * cm_insert_remote_qpn(struct cm_timewait_info
 		parent = *link;
 		cur_timewait_info = rb_entry(parent, struct cm_timewait_info,
 					     remote_qp_node);
-		if (remote_qpn < cur_timewait_info->remote_qpn)
+		if (be32_lt(remote_qpn, cur_timewait_info->remote_qpn))
 			link = &(*link)->rb_left;
-		else if (remote_qpn > cur_timewait_info->remote_qpn)
+		else if (be32_gt(remote_qpn, cur_timewait_info->remote_qpn))
 			link = &(*link)->rb_right;
-		else if (remote_ca_guid < cur_timewait_info->remote_ca_guid)
+		else if (be64_lt(remote_ca_guid, cur_timewait_info->remote_ca_guid))
 			link = &(*link)->rb_left;
-		else if (remote_ca_guid > cur_timewait_info->remote_ca_guid)
+		else if (be64_gt(remote_ca_guid, cur_timewait_info->remote_ca_guid))
 			link = &(*link)->rb_right;
 		else
 			return cur_timewait_info;
@@ -635,9 +660,9 @@ static struct cm_id_private * cm_insert_remote_sidr(struct cm_id_private
 		parent = *link;
 		cur_cm_id_priv = rb_entry(parent, struct cm_id_private,
 					  sidr_id_node);
-		if (remote_id < cur_cm_id_priv->id.remote_id)
+		if (be32_lt(remote_id, cur_cm_id_priv->id.remote_id))
 			link = &(*link)->rb_left;
-		else if (remote_id > cur_cm_id_priv->id.remote_id)
+		else if (be32_gt(remote_id, cur_cm_id_priv->id.remote_id))
 			link = &(*link)->rb_right;
 		else {
 			int cmp;
@@ -2848,7 +2873,7 @@ static void cm_format_sidr_req(struct cm_sidr_req_msg *sidr_req_msg,
 	cm_format_mad_hdr(&sidr_req_msg->hdr, CM_SIDR_REQ_ATTR_ID,
 			  cm_form_tid(cm_id_priv, CM_MSG_SEQUENCE_SIDR));
 	sidr_req_msg->request_id = cm_id_priv->id.local_id;
-	sidr_req_msg->pkey = cpu_to_be16(param->path->pkey);
+	sidr_req_msg->pkey = param->path->pkey;
 	sidr_req_msg->service_id = param->service_id;
 
 	if (param->private_data && param->private_data_len)
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index d81c156a22b4..671f13738054 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1289,7 +1289,7 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
 	new_cm_id = rdma_create_id(listen_id->id.event_handler,
 				   listen_id->id.context,
 				   RDMA_PS_TCP);
-	if (!new_cm_id) {
+	if (IS_ERR(new_cm_id)) {
 		ret = -ENOMEM;
 		goto out;
 	}
diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c
index 06d502c06a4d..1286dc1b98b2 100644
--- a/drivers/infiniband/core/fmr_pool.c
+++ b/drivers/infiniband/core/fmr_pool.c
@@ -158,8 +158,7 @@ static void ib_fmr_batch_release(struct ib_fmr_pool *pool)
 #endif
 	}
 
-	list_splice(&pool->dirty_list, &unmap_list);
-	INIT_LIST_HEAD(&pool->dirty_list);
+	list_splice_init(&pool->dirty_list, &unmap_list);
 	pool->dirty_len = 0;
 
 	spin_unlock_irq(&pool->pool_lock);
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 15937eb38aae..ca4cf3a511ab 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -614,7 +614,7 @@ static ssize_t ucma_query_route(struct ucma_file *file,
 	if (!ctx->cm_id->device)
 		goto out;
 
-	resp.node_guid = ctx->cm_id->device->node_guid;
+	resp.node_guid = (__force __u64) ctx->cm_id->device->node_guid;
 	resp.port_num = ctx->cm_id->port_num;
 	switch (rdma_node_get_transport(ctx->cm_id->device->node_type)) {
 	case RDMA_TRANSPORT_IB:
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index c75eb6c9bd49..2cad8b4b5292 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -81,13 +81,13 @@ struct ib_uverbs_device {
 
 struct ib_uverbs_event_file {
 	struct kref				ref;
-	struct file			       *file;
 	struct ib_uverbs_file		       *uverbs_file;
 	spinlock_t				lock;
-	int					is_async;
 	wait_queue_head_t			poll_wait;
 	struct fasync_struct		       *async_queue;
 	struct list_head			event_list;
+	int					is_async;
+	int					is_closed;
 };
 
 struct ib_uverbs_file {
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 495c803fb11d..2c3bff5fe867 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -1065,6 +1065,7 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file,
 	attr.srq           = srq;
 	attr.sq_sig_type   = cmd.sq_sig_all ? IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR;
 	attr.qp_type       = cmd.qp_type;
+	attr.create_flags  = 0;
 
 	attr.cap.max_send_wr     = cmd.max_send_wr;
 	attr.cap.max_recv_wr     = cmd.max_recv_wr;
@@ -1462,7 +1463,6 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file,
 		next->num_sge    = user_wr->num_sge;
 		next->opcode     = user_wr->opcode;
 		next->send_flags = user_wr->send_flags;
-		next->imm_data   = (__be32 __force) user_wr->imm_data;
 
 		if (is_ud) {
 			next->wr.ud.ah = idr_read_ah(user_wr->wr.ud.ah,
@@ -1475,14 +1475,24 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file,
 			next->wr.ud.remote_qkey = user_wr->wr.ud.remote_qkey;
 		} else {
 			switch (next->opcode) {
-			case IB_WR_RDMA_WRITE:
 			case IB_WR_RDMA_WRITE_WITH_IMM:
+				next->ex.imm_data =
+					(__be32 __force) user_wr->ex.imm_data;
+			case IB_WR_RDMA_WRITE:
 			case IB_WR_RDMA_READ:
 				next->wr.rdma.remote_addr =
 					user_wr->wr.rdma.remote_addr;
 				next->wr.rdma.rkey        =
 					user_wr->wr.rdma.rkey;
 				break;
+			case IB_WR_SEND_WITH_IMM:
+				next->ex.imm_data =
+					(__be32 __force) user_wr->ex.imm_data;
+				break;
+			case IB_WR_SEND_WITH_INV:
+				next->ex.invalidate_rkey =
+					user_wr->ex.invalidate_rkey;
+				break;
 			case IB_WR_ATOMIC_CMP_AND_SWP:
 			case IB_WR_ATOMIC_FETCH_AND_ADD:
 				next->wr.atomic.remote_addr =
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 7c2ac3905582..f49f94653a96 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -352,7 +352,7 @@ static int ib_uverbs_event_close(struct inode *inode, struct file *filp)
 	struct ib_uverbs_event *entry, *tmp;
 
 	spin_lock_irq(&file->lock);
-	file->file = NULL;
+	file->is_closed = 1;
 	list_for_each_entry_safe(entry, tmp, &file->event_list, list) {
 		if (entry->counter)
 			list_del(&entry->obj_list);
@@ -390,7 +390,7 @@ void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context)
 		return;
 
 	spin_lock_irqsave(&file->lock, flags);
-	if (!file->file) {
+	if (file->is_closed) {
 		spin_unlock_irqrestore(&file->lock, flags);
 		return;
 	}
@@ -423,7 +423,7 @@ static void ib_uverbs_async_handler(struct ib_uverbs_file *file,
 	unsigned long flags;
 
 	spin_lock_irqsave(&file->async_file->lock, flags);
-	if (!file->async_file->file) {
+	if (!file->async_file->is_closed) {
 		spin_unlock_irqrestore(&file->async_file->lock, flags);
 		return;
 	}
@@ -509,6 +509,7 @@ struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file,
 	ev_file->uverbs_file = uverbs_file;
 	ev_file->async_queue = NULL;
 	ev_file->is_async    = is_async;
+	ev_file->is_closed   = 0;
 
 	*fd = get_unused_fd();
 	if (*fd < 0) {
@@ -516,25 +517,18 @@ struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file,
 		goto err;
 	}
 
-	filp = get_empty_filp();
-	if (!filp) {
-		ret = -ENFILE;
-		goto err_fd;
-	}
-
-	ev_file->file      = filp;
-
 	/*
 	 * fops_get() can't fail here, because we're coming from a
 	 * system call on a uverbs file, which will already have a
 	 * module reference.
 	 */
-	filp->f_op 	   = fops_get(&uverbs_event_fops);
-	filp->f_path.mnt 	   = mntget(uverbs_event_mnt);
-	filp->f_path.dentry 	   = dget(uverbs_event_mnt->mnt_root);
-	filp->f_mapping    = filp->f_path.dentry->d_inode->i_mapping;
-	filp->f_flags      = O_RDONLY;
-	filp->f_mode       = FMODE_READ;
+	filp = alloc_file(uverbs_event_mnt, dget(uverbs_event_mnt->mnt_root),
+			  FMODE_READ, fops_get(&uverbs_event_fops));
+	if (!filp) {
+		ret = -ENFILE;
+		goto err_fd;
+	}
+
 	filp->private_data = ev_file;
 
 	return filp;
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 86ed8af9c7e6..05042089de6e 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -248,7 +248,9 @@ int ib_modify_srq(struct ib_srq *srq,
 		  struct ib_srq_attr *srq_attr,
 		  enum ib_srq_attr_mask srq_attr_mask)
 {
-	return srq->device->modify_srq(srq, srq_attr, srq_attr_mask, NULL);
+	return srq->device->modify_srq ?
+		srq->device->modify_srq(srq, srq_attr, srq_attr_mask, NULL) :
+		-ENOSYS;
 }
 EXPORT_SYMBOL(ib_modify_srq);
 
@@ -628,6 +630,13 @@ struct ib_cq *ib_create_cq(struct ib_device *device,
 }
 EXPORT_SYMBOL(ib_create_cq);
 
+int ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period)
+{
+	return cq->device->modify_cq ?
+		cq->device->modify_cq(cq, cq_count, cq_period) : -ENOSYS;
+}
+EXPORT_SYMBOL(ib_modify_cq);
+
 int ib_destroy_cq(struct ib_cq *cq)
 {
 	if (atomic_read(&cq->usecnt))
@@ -672,6 +681,9 @@ struct ib_mr *ib_reg_phys_mr(struct ib_pd *pd,
 {
 	struct ib_mr *mr;
 
+	if (!pd->device->reg_phys_mr)
+		return ERR_PTR(-ENOSYS);
+
 	mr = pd->device->reg_phys_mr(pd, phys_buf_array, num_phys_buf,
 				     mr_access_flags, iova_start);