linux-kernel - Re: [PATCH] thermal/intel_powerclamp: add const to thermal_cooling_device

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Message-ID: <CAOH+1jGUxFVakQxBnr2Hm+8aY2fFTGLrJ2WEi8d-YHAmrFiZsw@mail.gmail.com>
Date:   Thu, 29 Jun 2017 10:41:29 +0530
From:   Bhumika Goyal <bhumirks@...il.com>
To:     Zhang Rui <rui.zhang@...el.com>
Cc:     Julia Lawall <julia.lawall@...6.fr>,
        Eduardo Valentin <edubezval@...il.com>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>
Subject: Re: [PATCH] thermal/intel_powerclamp: add const to
 thermal_cooling_device_ops structure

On Thu, Jun 29, 2017 at 8:30 AM, Zhang Rui <rui.zhang@...el.com> wrote:
> On Wed, 2017-06-21 at 12:39 +0530, Bhumika Goyal wrote:
>> Declare thermal_cooling_device_ops structure as const as it is only
>> passed
>> as an argument to the function thermal_cooling_device_register and
>> this
>> argument is of type const. So, declare the structure as const.
>>
> I checked the source and the code is written in this way as well in
> some other drivers, why not fix them altogether?
>

Hey,

I have already sent the patches for the drivers requiring this change.
Some of them got applied as well.

Thanks,
Bhumika

> thanks,
> rui
>> Signed-off-by: Bhumika Goyal <bhumirks@...il.com>
>> ---
>>  drivers/thermal/intel_powerclamp.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/thermal/intel_powerclamp.c
>> b/drivers/thermal/intel_powerclamp.c
>> index d718cd1..e4c68b7 100644
>> --- a/drivers/thermal/intel_powerclamp.c
>> +++ b/drivers/thermal/intel_powerclamp.c
>> @@ -659,7 +659,7 @@ static int powerclamp_set_cur_state(struct
>> thermal_cooling_device *cdev,
>>  }
>>
>>  /* bind to generic thermal layer as cooling device*/
>> -static struct thermal_cooling_device_ops powerclamp_cooling_ops = {
>> +static const struct thermal_cooling_device_ops
>> powerclamp_cooling_ops = {
>>       .get_max_state = powerclamp_get_max_state,
>>       .get_cur_state = powerclamp_get_cur_state,
>>       .set_cur_state = powerclamp_set_cur_state,