linux-kernel - Re: [patch] use __asm__ and __volatile_

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Message-ID: <20070618183450.GA17112@infradead.org>
Date:	Mon, 18 Jun 2007 19:34:50 +0100
From:	Christoph Hellwig <hch@...radead.org>
To:	Mike Frysinger <vapier@...too.org>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-s390@...r.kernel.org, rmk@....linux.org.uk
Subject: Re: [patch] use __asm__ and __volatile__ in i386/arm/s390 byteorder.h

On Sun, Jun 17, 2007 at 06:33:28PM -0400, Mike Frysinger wrote:
> This changes asm() to __asm__() and volatile to __volatile__ so that these
> headers can be used with gcc's -std=c99.

We should not allow inline assemly in the exported part of userspace headers
at all.  These headers must only include defintions for the kernel <-> user
ABI, and should not include code at all.

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