linux-kernel - Re: [RFC PATCH 02/11] Add fastcall to do

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Date:	Sun, 06 Jan 2008 20:50:57 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Christoph Hellwig <hch@...radead.org>,
	Gregory Haskins <ghaskins@...ell.com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	"William L. Irwin" <sparclinux@...r.kernel.org>,
	Steven Rostedt <srostedt@...hat.com>
Subject: Re: [RFC PATCH 02/11] Add fastcall to do_IRQ for i386

Steven Rostedt wrote:
> 
> On Thu, 3 Jan 2008, Mathieu Desnoyers wrote:
>> I would propose to try to see how we can #ifdef two different __mcount
>> assembly functions that would prepare the stack appropriately for each
>> REGPARM cases.
> 
> I have to confess that I've been testing this mostly on x86_64, which
> doesn't have the troubles with REGPARM as i386 does. I'll need to
> investigate this a bit deeper on i386 alone.
> 

I thought we had dropped support for the non-REGPARM case, so why don't 
we just make it work for REGPARM and be done with it?

	-hpa

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