nvme: fix implicit bool to flags conversion

nvme_map_user_request() takes flags as the last argument, but
nvme_uring_cmd_io() shoves a bool "vec" into it. It behaves as
expected because bool is converted to 0/1 and NVME_IOCTL_VEC is
defined as 1, but it's better to pass flags explicitly.

Fixes: 7b7fdb8 ("nvme: replace the "bool vec" arguments with flags in the ioctl path")
Signed-off-by: Pavel Begunkov <[email protected]>
Reviewed-by: Jens Axboe <[email protected]>
Reviewed-by: Keith Busch <[email protected]>
Reviewed-by: Anuj Gupta <[email protected]>
Reviewed-by: Kanchan Joshi <[email protected]>
Reviewed-by: Chaitanya Kulkarni <[email protected]>
Reviewed-by: Caleb Sander Mateos <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>

Author: isilence

drivers/nvme/host/ioctl.c

@@ -521,7 +521,7 @@ static int nvme_uring_cmd_io(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
 	if (d.data_len) {
 		ret = nvme_map_user_request(req, d.addr, d.data_len,
 			nvme_to_user_ptr(d.metadata), d.metadata_len,
-			map_iter, vec);
+			map_iter, vec ? NVME_IOCTL_VEC : 0);
 		if (ret)
 			goto out_free_req;
 	}