* [PATCH] nvme: make nvmf_register_transport require a create_ctrl callback
@ 2017-01-26 15:22 Johannes Thumshirn
2017-01-26 16:30 ` Sagi Grimberg
2017-01-26 17:45 ` kbuild test robot
0 siblings, 2 replies; 4+ messages in thread
From: Johannes Thumshirn @ 2017-01-26 15:22 UTC (permalink / raw)
To: Christoph Hellwig, Sagi Grimberg, Keith Busch
Cc: Jens Axboe, Linux NVMe Mailinglist, Linux Kernel Mailinglist,
Johannes Thumshirn
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
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] nvme: make nvmf_register_transport require a create_ctrl callback
2017-01-26 15:22 [PATCH] nvme: make nvmf_register_transport require a create_ctrl callback Johannes Thumshirn
@ 2017-01-26 16:30 ` Sagi Grimberg
2017-01-27 8:00 ` Johannes Thumshirn
2017-01-26 17:45 ` kbuild test robot
1 sibling, 1 reply; 4+ messages in thread
From: Sagi Grimberg @ 2017-01-26 16:30 UTC (permalink / raw)
To: Johannes Thumshirn, Christoph Hellwig, Keith Busch
Cc: Jens Axboe, Linux NVMe Mailinglist, Linux Kernel Mailinglist
> 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);
??
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] nvme: make nvmf_register_transport require a create_ctrl callback
2017-01-26 15:22 [PATCH] nvme: make nvmf_register_transport require a create_ctrl callback Johannes Thumshirn
2017-01-26 16:30 ` Sagi Grimberg
@ 2017-01-26 17:45 ` kbuild test robot
1 sibling, 0 replies; 4+ messages in thread
From: kbuild test robot @ 2017-01-26 17:45 UTC (permalink / raw)
To: Johannes Thumshirn
Cc: kbuild-all, Christoph Hellwig, Sagi Grimberg, Keith Busch,
Jens Axboe, Linux NVMe Mailinglist, Linux Kernel Mailinglist,
Johannes Thumshirn
[-- Attachment #1: Type: text/plain, Size: 1326 bytes --]
Hi Johannes,
[auto build test ERROR on block/for-next]
[also build test ERROR on v4.10-rc5 next-20170125]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Johannes-Thumshirn/nvme-make-nvmf_register_transport-require-a-create_ctrl-callback/20170126-234702
base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=ia64
All error/warnings (new ones prefixed by >>):
vim +2066 drivers/nvme/host/rdma.c
2060 ret = ib_register_client(&nvme_rdma_ib_client);
2061 if (ret) {
2062 destroy_workqueue(nvme_rdma_wq);
2063 return ret;
2064 }
2065
> 2066 return = nvmf_register_transport(&nvme_rdma_transport);
> 2067 }
2068
2069 static void __exit nvme_rdma_cleanup_module(void)
2070 {
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 45519 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] nvme: make nvmf_register_transport require a create_ctrl callback
2017-01-26 16:30 ` Sagi Grimberg
@ 2017-01-27 8:00 ` Johannes Thumshirn
0 siblings, 0 replies; 4+ messages in thread
From: Johannes Thumshirn @ 2017-01-27 8:00 UTC (permalink / raw)
To: Sagi Grimberg
Cc: Christoph Hellwig, Keith Busch, Jens Axboe,
Linux NVMe Mailinglist, Linux Kernel Mailinglist
On Thu, Jan 26, 2017 at 06:30:47PM +0200, Sagi Grimberg wrote:
>
> > 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);
Gah typo and I had only fc enabled in my .config.
Sorry.
--
Johannes Thumshirn Storage
jthumshirn@suse.de +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)
Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
^ permalink raw reply [flat|nested] 4+ messages in thread
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2017-01-26 15:22 [PATCH] nvme: make nvmf_register_transport require a create_ctrl callback Johannes Thumshirn
2017-01-26 16:30 ` Sagi Grimberg
2017-01-27 8:00 ` Johannes Thumshirn
2017-01-26 17:45 ` kbuild test robot
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