Re: [PATCH v6 2/3] bsg: add io_uring command support to generic layer

[Bart Van Assche <bvanassche@acm.org>]

On 3/4/26 7:28 PM, Yang Xiuwei wrote:
> +static int bsg_uring_cmd(struct io_uring_cmd *ioucmd, unsigned int issue_flags)
> +{
> +	struct bsg_device *bd = to_bsg_device(file_inode(ioucmd->file));
> +	struct request_queue *q = bd->queue;
> +	bool open_for_write = ioucmd->file->f_mode & FMODE_WRITE;
> +	int ret;

Please order declarations from longest to shortest.

> +	if (bd->uring_cmd_fn)
> +		return bd->uring_cmd_fn(q, ioucmd, issue_flags, open_for_write);
> +	return -EOPNOTSUPP;

The traditional Linux kernel coding style is to return early in case of
an error. For the above code that means writing it as follows:

	if (!bd->uring_cmd_fn)
		return -EOPNOTSUPP;

	return bd->uring_cmd_fn(q, ioucmd, issue_flags, open_for_write);

Thanks,

Bart.