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Date: Sat, 10 Sep 2016 07:53:42 +0200 (CEST)
From: Thomas Gleixner <tglx@linutronix.de>
To: Ingo Molnar <mingo@kernel.org>
cc: Masahiro Yamada <yamada.masahiro@socionext.com>, x86@kernel.org,
        Ingo Molnar <mingo@redhat.com>, Toshi Kani <toshi.kani@hpe.com>,
        Denys Vlasenko <dvlasenk@redhat.com>, Borislav Petkov <bp@suse.de>,
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        Steffen Persvold <sp@numascale.com>, Alex Thorlton <athorlton@sgi.com>,
        Wei Jiangang <weijg.fnst@cn.fujitsu.com>
Subject: Re: [PATCH] x86: squash lines for simple wrapper functions
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On Sat, 10 Sep 2016, Ingo Molnar wrote:
> * Thomas Gleixner <tglx@linutronix.de> wrote:
> 
> > On Thu, 8 Sep 2016, Ingo Molnar wrote:
> > > * Masahiro Yamada <yamada.masahiro@socionext.com> wrote:
> > > >  static unsigned long set_apic_id(unsigned int id)
> > > >  {
> > > > -	unsigned long x;
> > > > -
> > > >  	/* maskout x2apic_extra_bits ? */
> > > > -	x = id;
> > > > -	return x;
> > > > +	return id;
> > > >  }
> > > 
> > > This was clearly left there to document a quirk and as a placeholder for future 
> > > changes.
> > 
> > Keeping the comment and rewording it to:
> > 
> > 	/* CHECKME: Do we need to mask out the xapic extra bits */
> > 
> > should be good enough. The variable dance is not really giving any value.
> 
> Yeah, sure - my point was that the mindless removal is wrong.

He kept the comment. The rewording is a bonus.