linux-kernel - RE: [PATCH 4/5] Clocksource: Flextimer: Fix counter clock prescaler calculation.

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Date:	Thu, 4 Sep 2014 02:03:14 +0000
From:	"Li.Xiubo@...escale.com" <Li.Xiubo@...escale.com>
To:	Thomas Gleixner <tglx@...utronix.de>
CC:	"daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 4/5] Clocksource: Flextimer: Fix counter clock prescaler
 calculation.

Hi Thomas,

Thanks very much for your comments.

Firstly I must tell the true that English is not my mother language.


> Subject: Re: [PATCH 4/5] Clocksource: Flextimer: Fix counter clock prescaler
> calculation.
> 
> On Tue, 26 Aug 2014, Xiubo Li wrote:
> 
> > We should minus one after calculating the counter input clock's
> > prescaler.
> 
> And that's a complete useless changelog.
> 
> A) It lacks a proper description of the problem
> 
> B) It lacks a proper argument WHY we must decrement the prescaler
>    value
> 
>    Hint: I used the verb "must" instead of "should". Can you figure
>    out why?
> 

Yes, we should use 'must' here, because we are using 'ps++' in the loop code,
the correct value should be 'ps = ps - 1', after the loop.

BRs
Xiubo
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