linux-kernel - Re: [PATCH 1/3 v6] cpufreq: Add debugfs directory for cpufreq

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Date:	Wed, 24 Jul 2013 15:14:12 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	rjw@...k.pl, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, cpufreq@...r.kernel.org,
	kyungmin.park@...sung.com, myungjoo.ham@...sung.com,
	Lists linaro-kernel <linaro-kernel@...ts.linaro.org>
Subject: Re: [PATCH 1/3 v6] cpufreq: Add debugfs directory for cpufreq

Hi Viresh,

>>> +       if (!policy->cpu_debugfs[idx]) {
>>> +               pr_err("creating debugfs directory failed\n");
>>> +               return -ENODEV;
>>> +       }
>>> +
>>> +       return 0;
>>> +}
>>> +
>>> +static int cpufreq_create_debugfs_symlink(struct cpufreq_policy *policy,
>>> +                                          unsigned int src_cpu,
>>> +                                          unsigned int dest_cpu)
>>
>> Only use policy and cpu for which symlink has to be created as param
>> to this routine. And create link to policy->cpu.
>>
> 
> OK, I'll simplify function prototype(cpufreq_create_debugfs_symlink) by removing
> unnecessary parameter.
> 

I considered the parameter type of cpufreq_create_debugfs_symlink() and then
I need following function declaration because this function didn't always need to
create symbolic link to policy->cpu. This function declaration is capable of creating
symbolic link as 'dest_cpu -> src_cpu'

	+static int cpufreq_create_debugfs_symlink(unsigned int src_cpu,
	+                                          unsigned int dest_cpu)

Thanks,
Chanwoo Choi


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