Re: [PATCH 3/4] Add the "verbose" module option.
From: Goffredo Baroncelli
Date: Mon Aug 04 2014 - 13:05:17 EST
On 08/04/2014 10:46 AM, Jean Delvare wrote:
> Le Sunday 03 August 2014 Ã 18:36 +0200, Goffredo Baroncelli a Ãcrit :
>> On 08/03/2014 05:52 PM, Jean Delvare wrote:
>>> On Sun, 03 Aug 2014 17:12:57 +0200, Goffredo Baroncelli wrote:
>>>> On 08/03/2014 04:12 PM, Jean Delvare wrote:
>>>>>> + (verbose > 0 && level >= 0)) {
>>>>>> + print_temp("CPU-temp: ", temp );
>>>>>> + if (casetemp)
>>>>>> + print_temp(", Case: ", casetemp );
>>>>>> + if (level >= 0)
>>>>>> + printk(", Fan: %d (tuned %+d)\n", 11-level,
>>>>>> + x.fan_level-level );
>>>>>> + else
>>>>>> + printk(", Fan: %d (tuned +0)\n",x.fan_level);
>>>>>
>>>>> I think you can do without the "tuned +0" which doesn't add much value.
>>>>
>>>> Me too. But the old driver does the same, so I preferred to
>>>> leave it as is.
>>>
>>> I looked at the code again and no, I can't see the old code doing that.
>>> It has "tuned %+d" only in tune_fan() which is only called if
>>> level >= 0. The other printk (when tune_fan isn't called) doesn't have
>>> a "tuned" part.
>>
>> This is taken from an old log of a v3.2 kernel (no changes here):
>>
>> [ 886.510879] CPU-temp: 55.4 C, Case: 33.1 C, Fan: 0 (tuned -11)
>> [ 910.522869] CPU-temp: 56.0 C, Case: 33.5 C, Fan: 0 (tuned +0)
>> [ 958.546880] CPU-temp: 57.0 C, Case: 34.1 C, Fan: 3 (tuned +3)
>>
>> in the code if level <0, then there is no update in the log. But if
>> level >0 and level is equal to the previous one, this leads to
>> have "tuned +0"...
>
> I agree with that.
>
>> But I have to be honest: I have not fully understand how
>> "level" is computed.
>
> I agree with that too :/
>
>> The printk without "(tuned %+d)" is never called because
>> LOG_TEMP was #define(d) equal to 0.
>
> And this is what your second printk is replacing. So it should not have
> the "(tuned *)" either.
>
I removed the printk(s) from tune_fan(); the ones leaved replaced
both the ones inside tune_fan() and the ones outside.
Anyway, Benjamin which is your opinion ?
For me is equal to remove or to leave "(tune +0)" (when the tuning is equal to 0).
Jean think it is better to remove "(tune +0)" (when the tuning is equal to 0).
So if you haven't any objection I will remove it.
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