linux-kernel - Re: v4l regression: V4L2_CID_[VH]CENTER disappeared without notice.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20080602181035.GA440@plankton.ifup.org>
Date:	Mon, 2 Jun 2008 11:10:35 -0700
From:	Brandon Philips <bphilips@...e.de>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	David Woodhouse <dwmw2@...radead.org>,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	Mauro Carvalho Chehab <mchehab@...radead.org>,
	linux-kernel@...r.kernel.org, Bastien Nocera <bnocera@...hat.com>
Subject: Re: v4l regression: V4L2_CID_[VH]CENTER disappeared without notice.

On 16:56 Mon 02 Jun 2008, Alan Cox wrote:
> > Please can we revert the addition of _DEPRECATED to these ioctl
> > definitions. Perhaps we can add a runtime warning if they actually get
> > used? Or a compile-time warning if we can manage that?
> 
> Can you clarify the problem here ? Is this compile breakage as it appears
> (See 'do not include kernel headers in user space apps') or runtime ?

It is compile breakage and was also discussed on
fedora-devel-list@...hat.com with Mauro and myself CC'd.  The control
number will be reserved forever to avoid binary breakage.

However, as Mauro noted in that conversation: "Those controls haven't
been used by any Kernel drivers for a long time (I suspect that they
were never used)."  Since no driver had ever implemented the control I
figured user space application wouldn't be using it either.

If David wants to revert the _DEPRECATED tags that is fine; we can add a
feature removal for a year from now if it gets merged.

Thanks,

	Brandon
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/