nvme: mark nvme_setup_passsthru() inline

Since nvmet_setup_passthru() function falls in fast path when called
from the NVMeOF passthru backend, make it inline.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

drivers/nvme/host/core.c

@@ -726,7 +726,7 @@ static void nvme_assign_write_stream(struct nvme_ctrl *ctrl,
 		req->q->write_hints[streamid] += blk_rq_bytes(req) >> 9;
 }
 
-static void nvme_setup_passthrough(struct request *req,
+static inline void nvme_setup_passthrough(struct request *req,
 		struct nvme_command *cmd)
 {
 	memcpy(cmd, nvme_req(req)->cmd, sizeof(*cmd));