linux-kernel - Re: FRV/ARM unaligned access question

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Message-ID: <20081008073519.GA19322@flint.arm.linux.org.uk>
Date:	Wed, 8 Oct 2008 08:35:20 +0100
From:	Russell King <rmk+lkml@....linux.org.uk>
To:	Harvey Harrison <harvey.harrison@...il.com>
Cc:	David Howells <dhowells@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: FRV/ARM unaligned access question

On Wed, Oct 08, 2008 at 12:26:13AM -0700, Harvey Harrison wrote:
> I noticed that frv/arm are the only two arches that currently use open-coded
> byteshifting routines for both the cpu endianness and the other endianness
> whereas just about all the other arches use a packed-struct version for the
> cpu-endian and then the byteshifting versions (lifted from arm) for the other
> endianness.

I'm sorry, I think you're mistaken.  I've looked at x86, m68k and
parisc, and they all use assembly for their swab functions in
asm/byteorder.h.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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