lkml.org 
[lkml]   [2017]   [Jan]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] nvme: make nvmf_register_transport require a create_ctrl callback
Date
nvmf_create_ctrl() relys on the presence of a create_crtl callback in the
registered nvmf_transport_ops, so make nvmf_register_transport require one.

Update the available call-sites as well to reflect these changes.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
---
drivers/nvme/host/fabrics.c | 7 ++++++-
drivers/nvme/host/fabrics.h | 2 +-
drivers/nvme/host/fc.c | 3 +--
drivers/nvme/host/rdma.c | 3 +--
drivers/nvme/target/loop.c | 3 +--
5 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c
index 916d136..5b7386f 100644
--- a/drivers/nvme/host/fabrics.c
+++ b/drivers/nvme/host/fabrics.c
@@ -480,11 +480,16 @@ int nvmf_connect_io_queue(struct nvme_ctrl *ctrl, u16 qid)
* being implemented to the common NVMe fabrics library. Part of
* the overall init sequence of starting up a fabrics driver.
*/
-void nvmf_register_transport(struct nvmf_transport_ops *ops)
+int nvmf_register_transport(struct nvmf_transport_ops *ops)
{
+ if (!ops->create_ctrl)
+ return -EINVAL;
+
mutex_lock(&nvmf_transports_mutex);
list_add_tail(&ops->entry, &nvmf_transports);
mutex_unlock(&nvmf_transports_mutex);
+
+ return 0;
}
EXPORT_SYMBOL_GPL(nvmf_register_transport);

diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h
index 924145c9..1560181 100644
--- a/drivers/nvme/host/fabrics.h
+++ b/drivers/nvme/host/fabrics.h
@@ -128,7 +128,7 @@ struct nvmf_transport_ops {
int nvmf_reg_write32(struct nvme_ctrl *ctrl, u32 off, u32 val);
int nvmf_connect_admin_queue(struct nvme_ctrl *ctrl);
int nvmf_connect_io_queue(struct nvme_ctrl *ctrl, u16 qid);
-void nvmf_register_transport(struct nvmf_transport_ops *ops);
+int nvmf_register_transport(struct nvmf_transport_ops *ops);
void nvmf_unregister_transport(struct nvmf_transport_ops *ops);
void nvmf_free_options(struct nvmf_ctrl_options *opts);
const char *nvmf_get_subsysnqn(struct nvme_ctrl *ctrl);
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index fcc9dcf..2912963 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2562,8 +2562,7 @@ static int __init nvme_fc_init_module(void)
if (!nvme_fc_wq)
return -ENOMEM;

- nvmf_register_transport(&nvme_fc_transport);
- return 0;
+ return nvmf_register_transport(&nvme_fc_transport);
}

static void __exit nvme_fc_exit_module(void)
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 557f29b..80f3695 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -2063,8 +2063,7 @@ static int __init nvme_rdma_init_module(void)
return ret;
}

- nvmf_register_transport(&nvme_rdma_transport);
- return 0;
+ return = nvmf_register_transport(&nvme_rdma_transport);
}

static void __exit nvme_rdma_cleanup_module(void)
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index 9aaa700..07f1cb8 100644
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -724,8 +724,7 @@ static int __init nvme_loop_init_module(void)
ret = nvmet_register_transport(&nvme_loop_ops);
if (ret)
return ret;
- nvmf_register_transport(&nvme_loop_transport);
- return 0;
+ return nvmf_register_transport(&nvme_loop_transport);
}

static void __exit nvme_loop_cleanup_module(void)
--
1.8.5.6
\
 
 \ /
  Last update: 2017-01-26 16:25    [W:0.039 / U:0.268 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site