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From: Kyle McMartin <kyle@mcmartin.ca>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [COMPAT] Add compat_merge64 helper
Date: Fri, 28 Sep 2007 20:01:31 -0400	[thread overview]
Message-ID: <20070929000131.GD25346@fattire.cabal.ca> (raw)
In-Reply-To: <200709290138.24562.arnd@arndb.de>

On Sat, Sep 29, 2007 at 01:38:23AM +0200, Arnd Bergmann wrote:
> 1. Byte order matches the order in which 64 bit arguments are split
>    in system call conventions on all platforms.

I checked powerpc, sparc, and mips, which are (besides parisc) the only
64-bit with 32-bit userspace big endian architectures that I could think
of offhand. A quick grep shows sh64 too... Paul?

> 2. Every user of compat_merge64() includes asm/byteorder.h
> 

*nod* Good point.

> Both should be easy to prove, but I'm not convinced until someone
> actually does it.
> 

Cheers,
	Kyle

  reply	other threads:[~2007-09-29  0:01 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-28 22:33 [COMPAT] Add compat_merge64 helper Kyle McMartin
2007-09-28 22:33 ` [PATCH] Generic compat_sys_fallocate Kyle McMartin
2007-09-29  9:11   ` Geert Uytterhoeven
2007-09-28 23:38 ` [COMPAT] Add compat_merge64 helper Arnd Bergmann
2007-09-29  0:01   ` Kyle McMartin [this message]
2007-09-28 23:52     ` Arnd Bergmann
2007-09-29  0:02     ` Kyle McMartin
2007-09-29  7:23       ` Paul Mundt
2007-09-29  9:48 ` Heiko Carstens
2007-10-03 12:12   ` Ralf Baechle

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