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From: Chaitanya Kulkarni <kch@nvidia.com>
Date: Mon, 6 Jun 2022 18:16:42 -0700
Subject: nvme: remove unused timeout parameter
Patch-mainline: v6.0-rc1
Git-commit: 6b46fa024a452fdbf2dc797d30b35598d934ba33
References: jsc#PED-1183

The function __nvme_submit_sync_cmd() has following list of callers
that sets the timeout value to 0 :-

        Callers               |   Timeout value
------------------------------------------------
nvme_submit_sync_cmd()        |        0
nvme_features()               |        0
nvme_sec_submit()             |        0
nvmf_reg_read32()             |        0
nvmf_reg_read64()             |        0
nvmf_reg_write32()            |        0
nvmf_connect_admin_queue()    |        0
nvmf_connect_io_queue()       |        0

Remove the timeout function parameter from __nvme_submit_sync_cmd() and
adjust the rest of code accordingly.

Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
 drivers/nvme/host/core.c    |   12 ++++--------
 drivers/nvme/host/fabrics.c |   10 +++++-----
 drivers/nvme/host/nvme.h    |    2 +-
 3 files changed, 10 insertions(+), 14 deletions(-)

--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -991,8 +991,7 @@ static int nvme_execute_rq(struct reques
  */
 int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
 		union nvme_result *result, void *buffer, unsigned bufflen,
-		unsigned timeout, int qid, int at_head,
-		blk_mq_req_flags_t flags)
+		int qid, int at_head, blk_mq_req_flags_t flags)
 {
 	struct request *req;
 	int ret;
@@ -1007,9 +1006,6 @@ int __nvme_submit_sync_cmd(struct reques
 		return PTR_ERR(req);
 	nvme_init_request(req, cmd);
 
-	if (timeout)
-		req->timeout = timeout;
-
 	if (buffer && bufflen) {
 		ret = blk_rq_map_kern(q, req, buffer, bufflen, GFP_KERNEL);
 		if (ret)
@@ -1029,7 +1025,7 @@ EXPORT_SYMBOL_GPL(__nvme_submit_sync_cmd
 int nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
 		void *buffer, unsigned bufflen)
 {
-	return __nvme_submit_sync_cmd(q, cmd, NULL, buffer, bufflen, 0,
+	return __nvme_submit_sync_cmd(q, cmd, NULL, buffer, bufflen,
 			NVME_QID_ANY, 0, 0);
 }
 EXPORT_SYMBOL_GPL(nvme_submit_sync_cmd);
@@ -1466,7 +1462,7 @@ static int nvme_features(struct nvme_ctr
 	c.features.dword11 = cpu_to_le32(dword11);
 
 	ret = __nvme_submit_sync_cmd(dev->admin_q, &c, &res,
-			buffer, buflen, 0, NVME_QID_ANY, 0, 0);
+			buffer, buflen, NVME_QID_ANY, 0, 0);
 	if (ret >= 0 && result)
 		*result = le32_to_cpu(res.u32);
 	return ret;
@@ -2103,7 +2099,7 @@ int nvme_sec_submit(void *data, u16 spsp
 	cmd.common.cdw10 = cpu_to_le32(((u32)secp) << 24 | ((u32)spsp) << 8);
 	cmd.common.cdw11 = cpu_to_le32(len);
 
-	return __nvme_submit_sync_cmd(ctrl->admin_q, &cmd, NULL, buffer, len, 0,
+	return __nvme_submit_sync_cmd(ctrl->admin_q, &cmd, NULL, buffer, len,
 			NVME_QID_ANY, 1, 0);
 }
 EXPORT_SYMBOL_GPL(nvme_sec_submit);
--- a/drivers/nvme/host/fabrics.c
+++ b/drivers/nvme/host/fabrics.c
@@ -152,7 +152,7 @@ int nvmf_reg_read32(struct nvme_ctrl *ct
 	cmd.prop_get.fctype = nvme_fabrics_type_property_get;
 	cmd.prop_get.offset = cpu_to_le32(off);
 
-	ret = __nvme_submit_sync_cmd(ctrl->fabrics_q, &cmd, &res, NULL, 0, 0,
+	ret = __nvme_submit_sync_cmd(ctrl->fabrics_q, &cmd, &res, NULL, 0,
 			NVME_QID_ANY, 0, 0);
 
 	if (ret >= 0)
@@ -198,7 +198,7 @@ int nvmf_reg_read64(struct nvme_ctrl *ct
 	cmd.prop_get.attrib = 1;
 	cmd.prop_get.offset = cpu_to_le32(off);
 
-	ret = __nvme_submit_sync_cmd(ctrl->fabrics_q, &cmd, &res, NULL, 0, 0,
+	ret = __nvme_submit_sync_cmd(ctrl->fabrics_q, &cmd, &res, NULL, 0,
 			NVME_QID_ANY, 0, 0);
 
 	if (ret >= 0)
@@ -243,7 +243,7 @@ int nvmf_reg_write32(struct nvme_ctrl *c
 	cmd.prop_set.offset = cpu_to_le32(off);
 	cmd.prop_set.value = cpu_to_le64(val);
 
-	ret = __nvme_submit_sync_cmd(ctrl->fabrics_q, &cmd, NULL, NULL, 0, 0,
+	ret = __nvme_submit_sync_cmd(ctrl->fabrics_q, &cmd, NULL, NULL, 0,
 			NVME_QID_ANY, 0, 0);
 	if (unlikely(ret))
 		dev_err(ctrl->device,
@@ -389,7 +389,7 @@ int nvmf_connect_admin_queue(struct nvme
 	strncpy(data->hostnqn, ctrl->opts->host->nqn, NVMF_NQN_SIZE);
 
 	ret = __nvme_submit_sync_cmd(ctrl->fabrics_q, &cmd, &res,
-			data, sizeof(*data), 0, NVME_QID_ANY, 1,
+			data, sizeof(*data), NVME_QID_ANY, 1,
 			BLK_MQ_REQ_RESERVED | BLK_MQ_REQ_NOWAIT);
 	if (ret) {
 		nvmf_log_connect_error(ctrl, ret, le32_to_cpu(res.u32),
@@ -450,7 +450,7 @@ int nvmf_connect_io_queue(struct nvme_ct
 	strncpy(data->hostnqn, ctrl->opts->host->nqn, NVMF_NQN_SIZE);
 
 	ret = __nvme_submit_sync_cmd(ctrl->connect_q, &cmd, &res,
-			data, sizeof(*data), 0, qid, 1,
+			data, sizeof(*data), qid, 1,
 			BLK_MQ_REQ_RESERVED | BLK_MQ_REQ_NOWAIT);
 	if (ret) {
 		nvmf_log_connect_error(ctrl, ret, le32_to_cpu(res.u32),
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -781,7 +781,7 @@ int nvme_submit_sync_cmd(struct request_
 		void *buf, unsigned bufflen);
 int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
 		union nvme_result *result, void *buffer, unsigned bufflen,
-		unsigned timeout, int qid, int at_head,
+		int qid, int at_head,
 		blk_mq_req_flags_t flags);
 int nvme_set_features(struct nvme_ctrl *dev, unsigned int fid,
 		      unsigned int dword11, void *buffer, size_t buflen,