static int io_uring_cmd_prep(struct io_kiocb *req,
			     const struct io_uring_sqe *sqe)
{
	struct io_uring_cmd *ioucmd = &req->uring_cmd;

	if (sqe->rw_flags)
		return -EINVAL;
	ioucmd->cmd = sqe->cmd;
	ioucmd->cmd_op = READ_ONCE(sqe->cmd_op);
	return 0;
}
static int io_uring_cmd_prep(struct io_kiocb *req,
			     const struct io_uring_sqe *sqe)
{
	struct io_uring_cmd *ioucmd = &req->uring_cmd;

	if (sqe->rw_flags)
		return -EINVAL;
	ioucmd->cmd = sqe->cmd;
	ioucmd->cmd_op = READ_ONCE(sqe->cmd_op);
	return 0;
}