From: Sagi Grimberg <sagi@grimberg.me>
Date: Mon, 22 Jul 2019 17:06:54 -0700
Subject: [PATCH] nvme: don't pass cap to nvme_disable_ctrl
References: bsc#1156419,jsc#SLE-8281
Git-commit: b5b0504878b884fb38e8983f1637a7be1d07fad3
Patch-mainline: v5.4-rc1

All seem to call it with ctrl->cap so no need to pass it
at all.

Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 drivers/nvme/host/core.c | 4 ++--
 drivers/nvme/host/nvme.h | 2 +-
 drivers/nvme/host/pci.c  | 4 ++--
 drivers/nvme/host/rdma.c | 2 +-
 drivers/nvme/host/tcp.c  | 2 +-
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index fce2f4e9052c..8e7d0ef70c75 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2033,7 +2033,7 @@ static int nvme_wait_ready(struct nvme_ctrl *ctrl, u64 cap, bool enabled)
  * bits', but doing so may cause the device to complete commands to the
  * admin queue ... and we don't know what memory that might be pointing at!
  */
-int nvme_disable_ctrl(struct nvme_ctrl *ctrl, u64 cap)
+int nvme_disable_ctrl(struct nvme_ctrl *ctrl)
 {
 	int ret;
 
@@ -2047,7 +2047,7 @@ int nvme_disable_ctrl(struct nvme_ctrl *ctrl, u64 cap)
 	if (ctrl->quirks & NVME_QUIRK_DELAY_BEFORE_CHK_RDY)
 		msleep(NVME_QUIRK_DELAY_AMOUNT);
 
-	return nvme_wait_ready(ctrl, cap, false);
+	return nvme_wait_ready(ctrl, ctrl->cap, false);
 }
 EXPORT_SYMBOL_GPL(nvme_disable_ctrl);
 
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 1849412db65f..9fc3f2cbce57 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -431,7 +431,7 @@ void nvme_complete_rq(struct request *req);
 bool nvme_cancel_request(struct request *req, void *data, bool reserved);
 bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
 		enum nvme_ctrl_state new_state);
-int nvme_disable_ctrl(struct nvme_ctrl *ctrl, u64 cap);
+int nvme_disable_ctrl(struct nvme_ctrl *ctrl);
 int nvme_enable_ctrl(struct nvme_ctrl *ctrl);
 int nvme_shutdown_ctrl(struct nvme_ctrl *ctrl);
 int nvme_init_ctrl(struct nvme_ctrl *ctrl, struct device *dev,
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 070d27ad7ad2..4c8dd5deb148 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1406,7 +1406,7 @@ static void nvme_disable_admin_queue(struct nvme_dev *dev, bool shutdown)
 	if (shutdown)
 		nvme_shutdown_ctrl(&dev->ctrl);
 	else
-		nvme_disable_ctrl(&dev->ctrl, dev->ctrl.cap);
+		nvme_disable_ctrl(&dev->ctrl);
 
 	nvme_poll_irqdisable(nvmeq, -1);
 }
@@ -1682,7 +1682,7 @@ static int nvme_pci_configure_admin_queue(struct nvme_dev *dev)
 	    (readl(dev->bar + NVME_REG_CSTS) & NVME_CSTS_NSSRO))
 		writel(NVME_CSTS_NSSRO, dev->bar + NVME_REG_CSTS);
 
-	result = nvme_disable_ctrl(&dev->ctrl, dev->ctrl.cap);
+	result = nvme_disable_ctrl(&dev->ctrl);
 	if (result < 0)
 		return result;
 
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 2a63a0bc539b..a2d8af523f86 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1872,7 +1872,7 @@ static void nvme_rdma_shutdown_ctrl(struct nvme_rdma_ctrl *ctrl, bool shutdown)
 	if (shutdown)
 		nvme_shutdown_ctrl(&ctrl->ctrl);
 	else
-		nvme_disable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap);
+		nvme_disable_ctrl(&ctrl->ctrl);
 	nvme_rdma_teardown_admin_queue(ctrl, shutdown);
 }
 
diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 678483d8ffb1..e4d1dcd46b7a 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -1886,7 +1886,7 @@ static void nvme_tcp_teardown_ctrl(struct nvme_ctrl *ctrl, bool shutdown)
 	if (shutdown)
 		nvme_shutdown_ctrl(ctrl);
 	else
-		nvme_disable_ctrl(ctrl, ctrl->cap);
+		nvme_disable_ctrl(ctrl);
 	nvme_tcp_teardown_admin_queue(ctrl, shutdown);
 }
 
-- 
2.16.4