linux-kernel - Re: namespace support requires network modules to say "GPL"

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Message-ID: <m1abot524h.fsf@ebiederm.dsl.xmission.com>
Date:	Sat, 01 Dec 2007 18:14:38 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	Mark Lord <lkml@....ca>, Arjan van de Ven <arjan@...radead.org>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Greg Kroah-Hartman <gregkh@...e.de>, Greg KH <greg@...ah.com>,
	Tejun Heo <htejun@...il.com>,
	Linux Containers <containers@...ts.osdl.org>,
	netdev@...r.kernel.org, cornelia.huck@...ibm.com,
	stern@...land.harvard.edu, kay.sievers@...y.org,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	David Miller <davem@...emloft.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: namespace support requires network modules to say "GPL"

Jiri Slaby <jirislaby@...il.com> writes:

> On 12/02/2007 12:13 AM, Eric W. Biederman wrote:
>> Mark Lord <lkml@....ca> writes:
>>> Fine.  But all of them want to call sk_alloc(),
>> 
>> network drivers should be calling sk_alloc less then they should
>> call dev_get_by_XXXX.  Only protocols call sk_alloc.
>> 
>>> and many want to do register_netdev().
>> 
>> I haven't even touched register_netdev.
>> 
>>> So what should they be using there ?
>> 
>> What are you having problems with?
>> 
>> It is hard to answer specific questions without a context.
>
> VMware vmnet.

With a quick glance in that direction it appears to the result
of a design bug in vmnet that they call sk_alloc at all, and someone
seems to have found a work around in vmnet for this situation.

My gut feel is that vmware should just use tun or tap (whichever
is the appropriate one), and be done with it.

Eric
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