Re: [COMPAT] Add compat_merge64 helper

From: Kyle McMartin
Date: Fri Sep 28 2007 - 20:01:45 EST

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.

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