linux-kernel - Re: [PATCHv5 1/3] ARM: Translate delay.S into (mostly) C

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Message-ID: <4D9D12FD.6060608@codeaurora.org>
Date:	Wed, 06 Apr 2011 18:27:25 -0700
From:	Saravana Kannan <skannan@...eaurora.org>
To:	Mattias Wallin <mattias.wallin@...ricsson.com>
CC:	Stephen Boyd <sboyd@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCHv5 1/3] ARM: Translate delay.S into (mostly) C

On 04/06/2011 01:49 AM, Mattias Wallin wrote:
> On 04/06/2011 01:56 AM, Stephen Boyd wrote:
>> +void __udelay(unsigned long usecs)
>> +{
>> + __const_udelay(usecs * ((2199023*HZ)>>11));
> This will overflow if HZ=1000.
> If I remember correct I fixed it like this:
> __const_udelay(usecs * ((2199023UL*HZ)>>11));
>
> /Mattias Wallin
>

Mattias,

Isn't this a big in the existing code too? I would prefer not combining 
that with this patch series. That bug should be fixed before/after this 
patch series. Not as part of it.

I would vote for after this patch series since this patch series has 
been trying to get in for quite a while now.

-Saravana

-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
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