linux-kernel - Re: [PATCH 7/7] [v5] drivers/virt: introduce Freescale hypervisor management driver

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Message-ID: <20110610104551.GB26441@sirena.org.uk>
Date:	Fri, 10 Jun 2011 11:45:51 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Timur Tabi <timur@...escale.com>, linuxppc-dev@...ts.ozlabs.org,
	alan@...rguk.ukuu.org.uk, kumar.gala@...escale.com,
	benh@...nel.crashing.org, greg@...ah.com, akpm@...nel.org,
	cmetcalf@...era.com, konrad.wilk@...cle.com,
	linux-kernel@...r.kernel.org, linux-console@...r.kernel.org,
	virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH 7/7] [v5] drivers/virt: introduce Freescale hypervisor
	management driver

On Thu, Jun 09, 2011 at 10:33:07PM +0200, Arnd Bergmann wrote:
> On Thursday 09 June 2011 22:18:28 Timur Tabi wrote:

> > Ok, I was really hoping to avoid doing this.  Like I said, binary compatibility
> > is important, and changing the type will break my existing apps.  Are you
> > insisting that I pick a new number?

> I definitely insist that you have a proper interface in the driver at the
> time that it gets merged, and that probably includes a collision-free
> ioctl code.

This sort of stuff is one of the issues that should be being factored in
to any decision not to publish and submit the kernel code - ABIs that
haven't been reviewed upstream may well have this sort of issue.
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