diff options
| author |   Johannes Thumshirn <jthumshirn@suse.de> | 2017-01-27 09:03:45 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2017-02-22 13:34:00 -0700 |
| commit | e5a39dd8238e5d42c830bbd8d31211adf6fea6ca (patch) | |
| tree | a261dc1b1658d73b1de0ba237f26abed4e967276 /drivers/nvme | |
| parent | nvme: Use CNS as 8-bit field and avoid endianness conversion (diff) | |
| download | linux-dev-e5a39dd8238e5d42c830bbd8d31211adf6fea6ca.tar.xz linux-dev-e5a39dd8238e5d42c830bbd8d31211adf6fea6ca.zip | |
nvme: make nvmf_register_transport require a create_ctrl callback
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>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/host/fabrics.c | 7 | ||||
| -rw-r--r-- | drivers/nvme/host/fabrics.h | 2 | ||||
| -rw-r--r-- | drivers/nvme/host/fc.c | 3 | ||||
| -rw-r--r-- | drivers/nvme/host/rdma.c | 3 | ||||
| -rw-r--r-- | 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 916d13608059..5b7386f69f4d 100644 --- a/drivers/nvme/host/fabrics.c +++ b/drivers/nvme/host/fabrics.c @@ -480,11 +480,16 @@ EXPORT_SYMBOL_GPL(nvmf_connect_io_queue); * 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 924145c979f1..156018182ce4 100644 --- a/drivers/nvme/host/fabrics.h +++ b/drivers/nvme/host/fabrics.h @@ -128,7 +128,7 @@ int nvmf_reg_read64(struct nvme_ctrl *ctrl, u32 off, u64 *val); 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 fb51a8de9b29..6186fde718f9 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 a75e95d42b3f..aedac6e28c6f 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 f3862e38f574..d1f06e7768ff 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) |