linux-kernel - Re: [RFC PATCH] x86/hweight: Get rid of the special calling convention

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Message-ID: <20160504194101.GE23257@pd.tnic>
Date:	Wed, 4 May 2016 21:41:01 +0200
From:	Borislav Petkov <bp@...e.de>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Brian Gerst <brgerst@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Dmitry Vyukov <dvyukov@...gle.com>,
	Andi Kleen <andi@...stfloor.org>, zengzhaoxiu@....com,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kees Cook <keescook@...omium.org>,
	Zhaoxiu Zeng <zhaoxiu.zeng@...il.com>,
	Andy Lutomirski <luto@...capital.net>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [RFC PATCH] x86/hweight: Get rid of the special calling
 convention

On Wed, May 04, 2016 at 12:33:24PM -0700, H. Peter Anvin wrote:
> Most likely not.  It would be nice to have some more uniform solution to
> that.  I'm wondering if we could use the -Wa option to load some kind of
> macro package.

Lemme try out some old compilers first, I'm guessing 3.2 won't know
about popcnt...

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--