netdev - Re: [PATCH v3 1/4] Add correlated clocksource deriving system time from an auxiliary clocksource

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Date:	Sat, 5 Sep 2015 12:04:11 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	"Hall, Christopher S" <christopher.s.hall@...el.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Richard Cochran <richardcochran@...il.com>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
	"hpa@...or.com" <hpa@...or.com>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"john.stultz@...aro.org" <john.stultz@...aro.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
Subject: Re: [PATCH v3 1/4] Add correlated clocksource deriving system time
 from an auxiliary clocksource


* Thomas Gleixner <tglx@...utronix.de> wrote:

> On Fri, 4 Sep 2015, Hall, Christopher S wrote:
> > > Right, but we still do not know how that is going to be used. And
> > > that's the key question. As long as that is not answered all can do is
> > > wild guessing.
> > 
> > It's not wild guessing.  We do have it working on other OSs and have a pretty 
> > good idea of how it will work.  The DSP firmware will be largely identical for 
> > Linux.  I think now, we have a chicken and egg problem.
> 
> You have a totally different problem. You are just refusing to explain how all 
> that stuff is supposed to work and what kind of functionality you need exactly.

Yeah, so I'm just going to NAK this until things are improved:

   NAKed-by: Ingo Molnar <mingo@...nel.org>

it's not like we are overly bored in timekeeping and need the extra complexity as 
much as possible.

Proper, comprehensive, proactive technical description is needed, with proper 
changelogs, not just half-baked notes. If all that is fixed I'll lift my NAK.

Thanks,

	Ingo
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