linux-kernel - Re: rwsem: rwsem: Remove redundant asmregparm annotation

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Message-ID: <19896.1296140620@redhat.com>
Date:	Thu, 27 Jan 2011 15:03:40 +0000
From:	David Howells <dhowells@...hat.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	dhowells@...hat.com, LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>, x86@...nel.org,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Richard Henderson <rth@...ddle.net>,
	Tony Luck <tony.luck@...el.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Paul Mundt <lethal@...ux-sh.org>,
	David Miller <davem@...emloft.net>,
	Chris Zankel <chris@...kel.net>
Subject: Re: rwsem: rwsem: Remove redundant asmregparm annotation

Thomas Gleixner <tglx@...utronix.de> wrote:

> Peter Zijlstra pointed out, that the only user of asmregparm (x86) is
> compiling the kernel already with -mregparm=3. So the annotation of
> the rwsem functions is redundant. Remove it.

That's fine - as long as we never remove the -mregparm=3 on i386.  The inline
assembly relies on the regparm=3 calling convention.

David
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