linux-kernel - Re: why network devices don't do reference counting?

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Message-Id: <20070926.155726.43027883.davem@davemloft.net>
Date:	Wed, 26 Sep 2007 15:57:26 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	shemminger@...ux-foundation.org
Cc:	jengelh@...putergmbh.de, olecom@...wer.upol.cz,
	jbeulich@...ell.com, bridge@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: why network devices don't do reference counting?

From: Stephen Hemminger <shemminger@...ux-foundation.org>
Date: Wed, 26 Sep 2007 15:33:30 -0700

> ipv6 is not a network driver, it is a protocol. You might be able to
> remove it if you zap all the routes and applications, ...

It is purposefully set to have a permanent elevated reference
count because it is not designed to be unloaded safely.

It has been unloadable forever.
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