linux-kernel - Re: RFD: x32 ABI system call numbers

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Date:	Sat, 03 Sep 2011 10:28:22 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"H.J. Lu" <hjl.tools@...il.com>
CC:	Valdis.Kletnieks@...edu, Arnd Bergmann <arnd@...db.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Christoph Hellwig <hch@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Richard Kuo <rkuo@...eaurora.org>,
	Mark Salter <msalter@...hat.com>,
	Jonas Bonn <jonas@...thpole.se>,
	Tobias Klauser <tklauser@...tanz.ch>
Subject: Re: RFD: x32 ABI system call numbers

On 09/03/2011 10:22 AM, H.J. Lu wrote:
>
> We can't use 64bit ioctl for x32 if indirect pointers are ever passed
> to ioctl.
>

Which they are, in a fairly large number of ioctls.

	-hpa
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