linux-kernel - Re: [PATCH 1/2] hwmon, fam15h_power: Make actual power reporting conditional

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Date:	Tue, 16 Sep 2014 10:56:49 -0500
From:	Aravind Gopalakrishnan <aravind.gopalakrishnan@....com>
To:	Guenter Roeck <linux@...ck-us.net>
CC:	<herrmann.der.user@...glemail.com>, <jdelvare@...e.de>,
	<lm-sensors@...sensors.org>, <linux-kernel@...r.kernel.org>,
	<boris.ostrovsky@...cle.com>
Subject: Re: [PATCH 1/2] hwmon, fam15h_power: Make actual power reporting
 conditional

On 9/16/2014 10:52 AM, Guenter Roeck wrote:
> On Tue, Sep 16, 2014 at 10:38:38AM -0500, Aravind Gopalakrishnan wrote:
>> power1_input should only be reported for Fam15h, Models 00h-0fh
>> So, introduce a is_visible function to take care of this.
>>
>> As suggested by Guenter here:
>> http://marc.info/?l=linux-kernel&m=141038145616437&w=2
>>
>> Suggested-by: Guenter Roeck <linux@...ck-us.net>
>> Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@....com>
>> ---
>>   drivers/hwmon/fam15h_power.c | 19 ++++++++++++++++++-
>>   1 file changed, 18 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c
>> index 4a7cbfa..5ca24de 100644
>> --- a/drivers/hwmon/fam15h_power.c
>> +++ b/drivers/hwmon/fam15h_power.c
>> @@ -93,13 +93,30 @@ static ssize_t show_power_crit(struct device *dev,
>>   }
>>   static DEVICE_ATTR(power1_crit, S_IRUGO, show_power_crit, NULL);
>>   
>> +static umode_t fam15h_power_is_visible(struct kobject *kobj,
>> +				       struct attribute *attr,
>> +				       int index)
>> +{
>> +	/* power1_input is only reported for Fam15h, Models 00h-0fh */
>> +	if (!strcmp(attr->name, "power1_input") &&
> 	if (attr == &dev_attr_power1_input.attr &&
>
> works just as well and is simpler.

Ok.

>> +	   (boot_cpu_data.x86 != 0x15 || boot_cpu_data.x86_model > 0xf)) {
>> +		return 0;
>> +	}
>> +

I just noticed: I don't really need opening/closing parenthesis here. 
Shall fix and send V2.

>> +	return attr->mode;
>> +}
>> +
>>   

Thanks,
-Aravind.
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