[PATCH 1/6] nvmet: use req->cmd directly in bdev-ns fast path

Chaitanya Kulkarni
2021-06-14T01:59:20Z

The function nvmet_bdev_parse_io_cmd() is called from the fast path.
The local variable to that function cmd is only used once.

Remove the local variable and use req->cmd directly.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
drivers/nvme/target/io-cmd-bdev.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c
index f673679d258a..5d998e5873d3 100644
--- a/drivers/nvme/target/io-cmd-bdev.c
+++ b/drivers/nvme/target/io-cmd-bdev.c
@@ -429,9 +429,7 @@ static void nvmet_bdev_execute_write_zeroes(struct nvmet_req *req)

u16 nvmet_bdev_parse_io_cmd(struct nvmet_req *req)
{
- struct nvme_command *cmd = req->cmd;
-
- switch (cmd->common.opcode) {
+ switch (req->cmd->common.opcode) {
case nvme_cmd_read:
case nvme_cmd_write:
req->execute = nvmet_bdev_execute_rw;