Re: [PATCH v2 18/28] ARM: tegra: add CPU_IDLE driver
From: Colin Cross
Date: Thu Jan 27 2011 - 16:51:20 EST
On Thu, Jan 27, 2011 at 12:38 PM, Stephen Boyd <sboyd@xxxxxxxxxxxxxx> wrote:
> On 01/23/2011 06:01 PM, Colin Cross wrote:
>>
>> +static int __init tegra_cpuidle_debug_init(void)
>> +{
>> + struct dentry *dir;
>> + struct dentry *d;
>> +
>> + dir = debugfs_create_dir("cpuidle", NULL);
>> + if (!dir)
>> + return -ENOMEM;
>> +
>> + d = debugfs_create_file("lp2", S_IRUGO, dir, NULL,
>> + &tegra_lp2_debug_ops);
>> + if (!d)
>> + return -ENOMEM;
>> +
>> + return 0;
>> +}
>> +#endif
>> +
>> +late_initcall(tegra_cpuidle_debug_init);
>
> Will this compile with CONFIG_DEBUG_FS=n?
Yes. All debugfs ops return ERR_PTR(-ENODEV) if CONFIG_DEBUG_FS=n, so
tegra_cpuidle_debug_init will do nothing and return 0.
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