linux-kernel - Re: [PATCH] x86/hweight: Don't clobber %rdi

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Date:	Mon, 8 Aug 2016 20:32:08 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Ville Syrj??l?? <ville.syrjala@...ux.intel.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	the arch/x86 maintainers <x86@...nel.org>,
	Borislav Petkov <bp@...e.de>,
	"H . Peter Anvin" <hpa@...or.com>,
	Andy Lutomirski <luto@...capital.net>,
	Brian Gerst <brgerst@...il.com>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH] x86/hweight: Don't clobber %rdi

On Mon, Aug 08, 2016 at 10:58:51AM -0700, Linus Torvalds wrote:
> On Mon, Aug 8, 2016 at 10:35 AM,  <ville.syrjala@...ux.intel.com> wrote:
> > From: Ville Syrj??l?? <ville.syrjala@...ux.intel.com>
> >
> > The caller expects %rdi to remain intact, push+pop it make that happen.
> 
> Indeed. Applied,

See also:

  lkml.kernel.org/r/alpine.LNX.2.00.1608081634530.22028@...bk.fhfr.pm