Re: [PATCH 0/2] fix some problems for cpufreq

From: Wang Weidong
Date: Wed Dec 03 2014 - 00:49:46 EST

On 2014/12/2 12:38, Viresh Kumar wrote:
> On 30 November 2014 at 13:53, Wang Weidong <wangweidong1@xxxxxxxxxx> wrote:
>> No, there are not utilities and scripts relying on it.
> How can you be so sure about it ? There might be scripts/utils you
> aren't aware of
> and are depending on this..
>> I just confuse that:
>> If the policy->min and policy-max is changed while it shows all available freqs
>> though scaling_available_frequencies. I can't set all freq-steps, only [policy->min, policy->max].
>> why should it show all the available freqs.
> That's not the only purpose of those frequencies there. It shows list
> of all possible
> frequencies. Now, there can be issues if those lists are updated.
> Suppose somebody just played with the min/max frequency, now how would anybody
> come to know about the frequencies available above/below the
> user-max/min frequency?
> So as you mentioned in your example above: User space would never know about
> 1.05 Ghz and 2.3GHz anymore.. Unless you remember it or save it somewhere.

Nice, Thanks for your reply.

Got it.


>> Although, it doesn't impact on us. So just ignore the patch#2. :)
> Probably yes.

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