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Date: Mon, 8 Aug 2016 20:32:08 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ville Syrj??l?? <ville.syrjala@linux.intel.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        the arch/x86 maintainers <x86@kernel.org>,
        Borislav Petkov <bp@suse.de>, "H . Peter Anvin" <hpa@zytor.com>,
        Andy Lutomirski <luto@amacapital.net>, Brian Gerst <brgerst@gmail.com>,
        Denys Vlasenko <dvlasenk@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@kernel.org>
Subject: Re: [PATCH] x86/hweight: Don't clobber %rdi
Message-ID: <20160808183208.GB30192@twins.programming.kicks-ass.net>
References: <1470677729-10561-1-git-send-email-ville.syrjala@linux.intel.com>
 <CA+55aFzE9p7ts6EK7Hia25n=LZ+TMNDZ+uJND1GjJjZo4NLETw@mail.gmail.com>
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On Mon, Aug 08, 2016 at 10:58:51AM -0700, Linus Torvalds wrote:
> On Mon, Aug 8, 2016 at 10:35 AM,  <ville.syrjala@linux.intel.com> wrote:
> > From: Ville Syrj??l?? <ville.syrjala@linux.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@cbobk.fhfr.pm