[PATCH v2 18/28] ARM: tegra: add CPU_IDLE driver

[Colin Cross]

On Thu, Jan 27, 2011 at 12:38 PM, Stephen Boyd <sboyd at codeaurora.org> 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.