linux-kernel - Re: [PATCH v6 1/5] powerpc/85xx: implement hardware timebase sync

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Message-ID: <20120702104441.GB22108@localhost.localdomain>
Date:	Mon, 2 Jul 2012 18:44:41 +0800
From:	Zhao Chenhui <chenhui.zhao@...escale.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
CC:	<linuxppc-dev@...ts.ozlabs.org>, <scottwood@...escale.com>,
	<linux-kernel@...r.kernel.org>, <leoli@...escale.com>
Subject: Re: [PATCH v6 1/5] powerpc/85xx: implement hardware timebase sync

On Thu, Jun 28, 2012 at 08:50:51PM +1000, Benjamin Herrenschmidt wrote:
> On Thu, 2012-06-28 at 11:38 +0800, Zhao Chenhui wrote:
> > 
> > 
> > The bootloader have done a timebase sync. If we do not need KEXEC or
> > HOTPLUG_CPU feature, it is unnecessary to do it again at boot time of
> > kernel. I only compile the timebase sync routines
> > when users enable KEXEC or HOTPLUG_CPU. 
> 
> Still, how much are you really saving ? Is it worth the added mess and
> loss of test coverage ?
> 
> We have too many conditional stuff like that already.
> 
> Cheers,
> Ben.

OK. I will remove this config option.

-Chenhui

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