linux-kernel - Re: [PATCH v2] x86/hweight: fix open-coded versions of 32bit and 64bit hweight calculations

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Message-ID: <20160811000901.GA20255@gmail.com>
Date:	Thu, 11 Aug 2016 02:09:01 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Jiri Kosina <jikos@...nel.org>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	x86@...nel.org, linux-kernel@...r.kernel.org,
	Mike Galbraith <umgwanakikbuti@...il.com>,
	Borislav Petkov <bp@...e.de>
Subject: Re: [PATCH v2] x86/hweight: fix open-coded versions of 32bit and
 64bit hweight calculations


* Jiri Kosina <jikos@...nel.org> wrote:

> On Wed, 10 Aug 2016, Ingo Molnar wrote:
> 
> > >  ENTRY(__sw_hweight64)
> > > -#ifdef CONFIG_X86_64
> > > +
> > 
> > So this removes an #ifdef without removing the #else branch.
> 
> Hi Ingo,
> 
> this patch is obsolete; the real issue has already been fixed by 65ea11ec6 
> ("x86/hweight: Don't clobber %rdi") in Linus' tree already.

Ok, great!

Thanks,

	Ingo