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Date:	Tue, 6 Oct 2015 22:33:49 +0100
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Vlad Zolotarov <vladz@...udius-systems.com>
Cc:	linux-kernel@...r.kernel.org, mst@...hat.com, hjk@...sjkoch.de,
	corbet@....net, gregkh@...uxfoundation.org,
	bruce.richardson@...el.com, avi@...udius-systems.com,
	gleb@...udius-systems.com, alexander.duyck@...il.com
Subject: Re: [PATCH v5 1/4] uio: add ioctl support

On Tue,  6 Oct 2015 20:17:36 +0300
Vlad Zolotarov <vladz@...udius-systems.com> wrote:

> Add the ability for underlying device drivers to register the ioctl
> commands. This is useful when some interaction with the user space
> beyond sysfs capabilities is required, e.g. query the interrupt mode
> or bind eventfd to interrupt notifications (similarly to vfio ioctl
> VFIO_DEVICE_SET_IRQS).
> 
> Signed-off-by: Vlad Zolotarov <vladz@...udius-systems.com>

After discussions on and off list, the idea of an ioctl interface
is just not going to be accepted upstream because it can be abused.
Therefore another API will be necessary.

Ps: since I did most of this first, I am surprised you never gave
any attribution for the earlier work.
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