linux-kernel - Re: [PATCH 14/16] intel_idle: remove use and definition of MWAIT_MAX_NUM

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Date:	Tue, 12 Feb 2013 23:43:52 +0100
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	Len Brown <lenb@...nel.org>
CC:	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
	Len Brown <len.brown@...el.com>
Subject: Re: [PATCH 14/16] intel_idle: remove use and definition of MWAIT_MAX_NUM_CSTATES

On 02/12/2013 12:46 AM, Len Brown wrote:
> On 02/11/2013 03:53 AM, Daniel Lezcano wrote:
>> On 02/09/2013 02:08 AM, Len Brown wrote:
> 
>>> The reason to change is that intel_idle will soon be able
>>> to export more than the 8 "major" states supported by MWAIT.
>>> When we hit that limit, it is important to know
>>> where the limit comes from.
>>
>> Does it mean CPUIDLE_STATE_MAX may increase in a near future ?
> 
> Yes, perhaps to 10.
> Let me know if you anticipate issues with doing that.

No, I don't see any issue so far. Maybe the array state is increasing
more and more, so for most architecture it is a waste of memory, but
anyway ...



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