linux-kernel - RE: [PATCH] TODO FLAG_POINTTOPOINT => FLAG_WWAN? usbnet/cdc_ncm: mark ncm devices as "mobile broadband devices" with FLAG

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Message-ID: <2AC7D4AD8BA1C640B4C60C61C8E520153E3C07E583@EXDCVYMBSTM006.EQ1STM.local>
Date:	Wed, 1 Jun 2011 12:20:20 +0200
From:	Alexey ORISHKO <alexey.orishko@...ricsson.com>
To:	Stefan Metzmacher <metze@...ba.org>,
	Oliver Neukum <oliver@...kum.name>
Cc:	Greg Kroah-Hartman <gregkh@...e.de>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] TODO FLAG_POINTTOPOINT => FLAG_WWAN? usbnet/cdc_ncm:
 mark ncm devices as "mobile broadband devices" with FLAG_WWAN

> -----Original Message-----
> From: netdev-owner@...r.kernel.org [mailto:netdev-
> owner@...r.kernel.org] On Behalf Of Stefan Metzmacher
> Sent: Wednesday, June 01, 2011 12:09 PM


> -	.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET,
> +	.flags = FLAG_WWAN | FLAG_NO_SETINT | FLAG_MULTI_PACKET,

This patch will introduce incompatibility with already existing
applications, which track usbX devices. As a result, end user
application will stop working.

cdc_ncm driver can also be used for local link terminated in device,
so wwan would be inappropriate name.

Regards,
Alexey


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