[v1,2/5] nvmef: export nvmef_create_ctrl()

Commit Message

Damien Le Moal Oct. 7, 2024, 4:43 a.m. UTC

Export nvmef_create_ctrl() to allow drivers to directly call this
function instead of forcing the creation of a fabrics host controller
with a write to /dev/nvmef. The export is restricted to the NVME_FABRICS
namespace.

Signed-off-by: Damien Le Moal <[e-mail]>
---
 drivers/nvme/host/fabrics.c | 4 ++--
 drivers/nvme/host/fabrics.h | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

Patch

diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c
index 432efcbf9e2f..e3c990d50704 100644
--- a/drivers/nvme/host/fabrics.c
+++ b/drivers/nvme/host/fabrics.c
@@ -1276,8 +1276,7 @@  EXPORT_SYMBOL_GPL(nvmf_free_options);
 				 NVMF_OPT_FAIL_FAST_TMO | NVMF_OPT_DHCHAP_SECRET |\
 				 NVMF_OPT_DHCHAP_CTRL_SECRET)
 
-static struct nvme_ctrl *
-nvmf_create_ctrl(struct device *dev, const char *buf)
+struct nvme_ctrl *nvmf_create_ctrl(struct device *dev, const char *buf)
 {
 	struct nvmf_ctrl_options *opts;
 	struct nvmf_transport_ops *ops;
@@ -1346,6 +1345,7 @@  nvmf_create_ctrl(struct device *dev, const char *buf)
 	nvmf_free_options(opts);
 	return ERR_PTR(ret);
 }
+EXPORT_SYMBOL_NS_GPL(nvmf_create_ctrl, NVME_FABRICS);
 
 static const struct class nvmf_class = {
 	.name = "nvme-fabrics",
diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h
index 21d75dc4a3a0..2dd3aeb8c53a 100644
--- a/drivers/nvme/host/fabrics.h
+++ b/drivers/nvme/host/fabrics.h
@@ -214,6 +214,7 @@  static inline unsigned int nvmf_nr_io_queues(struct nvmf_ctrl_options *opts)
 		min(opts->nr_poll_queues, num_online_cpus());
 }
 
+struct nvme_ctrl *nvmf_create_ctrl(struct device *dev, const char *buf);
 int nvmf_reg_read32(struct nvme_ctrl *ctrl, u32 off, u32 *val);
 int nvmf_reg_read64(struct nvme_ctrl *ctrl, u32 off, u64 *val);
 int nvmf_reg_write32(struct nvme_ctrl *ctrl, u32 off, u32 val);