Re: [PATCH] n_hdlc.c 2.5.68 (try 2)

[Christoph Hellwig <hch@infradead.org>]

On Mon, Apr 21, 2003 at 02:20:53PM -0500, Paul Fulghum wrote:
> Attempt 2 with suggestions from Chritoph Hellwig
> 
> * Remove MODULE_USE_COUNT macros
> * Add owner member to struct tty_ldisc
> * Init tty_ldisc at compile time
> * make some functions static

.oO(I guess you'll have me for moaning again, but..)

>  
>  static int __init n_hdlc_init(void)
>  {
> -	static struct tty_ldisc	n_hdlc_ldisc;
> +	static struct tty_ldisc	n_hdlc_ldisc = {

Usual Linux style is to have this outside of any function scope.
That'll get important once we get a saner tty_unregister_ldisc
prototype.

> +		TTY_LDISC_MAGIC,    /* magic */
> +		"hdlc",             /* name */

Please use C99 named initializers.

> +		0,                  /* num */
> +		0,                  /* flags */

And no need to initialize anything to 0/NULL.

It should look like:

static struct tty_ldisc n_hdlc_ldisc = {
	.owner		= THIS_MODULE,
	.magic		= TTY_LDISC_MAGIC,
	.name		= "hdlc",
	.open		= n_hdlc_tty_open,
	.close		= n_hdlc_tty_close,
	.read		= n_hdlc_tty_read,
	.write		= n_hdlc_tty_write,
	.ioctl		= n_hdlc_tty_ioctl,
	.poll		= n_hdlc_tty_poll,
	.receive_buf	= n_hdlc_tty_receive,
	.receive_room	= n_hdlc_tty_room,
	.write_wakeup	= n_hdlc_tty_wakeup,
};