linux-kernel - Re: [PATCH v2 1/2] staging: gdm7240: adding LTE USB driver

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Date:	Wed, 24 Jul 2013 15:06:31 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Dan Carpenter <dan.carpenter@...cle.com>
Cc:	Won Kang <wkang77@...il.com>, devel@...verdev.osuosl.org,
	wonkang@...semi.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] staging: gdm7240: adding LTE USB driver

On Thu, Jul 25, 2013 at 12:53:40AM +0300, Dan Carpenter wrote:
> > +static int gdm_lte_ioctl_get_data(struct wm_req_t *req, struct net_device *dev)
> > +{
> > +	u16 id = req->data_id;
> > +
> > +	switch (id) {
> > +	case GET_ENDIAN_INFO:
> > +		/* required for the user space application to find out device endian */
> > +		get_dev_endian(&req->data, dev);
> > +		break;
> > +	default:
> > +		printk(KERN_ERR "glte: ioctl - unknown type %d\n", id);
> > +		break;
> > +	}
> > +	return 0;
> > +}
> 
> This should be a sysfs file not an ioctl.  What would break if we
> fixed this right now (as opposed to waiting until we can't change
> the API?).
> 
> Otherwise if we can't change this, then it should return an error
> code instead of printing a message.

It should just be removed, why would you care about the endian-ness of
the device at all?

thanks,

greg k-h
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