[PATCH 1/3] nvme-pci: add and use print io-queues helper

[Chaitanya Kulkarni]

Instaed of duplicating same code in every transport, add helper in the
core to print the ctrl->io_queues, since all the transports are using
same format to print the information we can safely replace repetative
code by a centralize helper.

Use that helper for nvme-pci transport.

Signed-off-by: Chaitanya Kulkarni <kch at nvidia.com>
---
 drivers/nvme/host/core.c | 10 ++++++++++
 drivers/nvme/host/nvme.h |  1 +
 drivers/nvme/host/pci.c  |  5 +----
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 518c759346f0..ec430947aaf7 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -249,6 +249,16 @@ static void nvme_delete_ctrl_sync(struct nvme_ctrl *ctrl)
 	nvme_put_ctrl(ctrl);
 }
 
+void nvme_ctrl_print_io_queues(struct nvme_ctrl *ctrl, int io_queues[])
+{
+	dev_info(ctrl->device,
+		"mapped %d/%d/%d default/read/poll queues.\n",
+		io_queues[HCTX_TYPE_DEFAULT],
+		io_queues[HCTX_TYPE_READ],
+		io_queues[HCTX_TYPE_POLL]);
+}
+EXPORT_SYMBOL_GPL(nvme_ctrl_print_io_queues);
+
 static blk_status_t nvme_error_status(u16 status)
 {
 	switch (status & 0x7ff) {
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index bf46f122e9e1..4000526cbca0 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -767,6 +767,7 @@ void nvme_unfreeze(struct nvme_ctrl *ctrl);
 void nvme_wait_freeze(struct nvme_ctrl *ctrl);
 int nvme_wait_freeze_timeout(struct nvme_ctrl *ctrl, long timeout);
 void nvme_start_freeze(struct nvme_ctrl *ctrl);
+void nvme_ctrl_print_io_queues(struct nvme_ctrl *ctrl, int io_queues[]);
 
 static inline enum req_op nvme_req_op(struct nvme_command *cmd)
 {
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 593f86323e25..771d2bf5f402 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2356,10 +2356,7 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
 		nvme_suspend_io_queues(dev);
 		goto retry;
 	}
-	dev_info(dev->ctrl.device, "%d/%d/%d default/read/poll queues\n",
-					dev->io_queues[HCTX_TYPE_DEFAULT],
-					dev->io_queues[HCTX_TYPE_READ],
-					dev->io_queues[HCTX_TYPE_POLL]);
+	nvme_ctrl_print_io_queues(&dev->ctrl, dev->io_queues);
 	return 0;
 out_unlock:
 	mutex_unlock(&dev->shutdown_lock);
-- 
2.40.0