linux-kernel - Re: [PATCH] clocksource: fix some comments typo in clocksource.c

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Date:	Thu, 23 Jan 2014 09:15:22 +0800
From:	Yijing Wang <wangyijing@...wei.com>
To:	Thomas Gleixner <tglx@...utronix.de>
CC:	John Stultz <john.stultz@...aro.org>,
	<linux-kernel@...r.kernel.org>, Hanjun Guo <guohanjun@...wei.com>
Subject: Re: [PATCH] clocksource: fix some comments typo in clocksource.c

On 2014/1/23 5:05, Thomas Gleixner wrote:
> On Thu, 2 Jan 2014, Yijing Wang wrote:
> 
>> Fix some trivial comments typo in kernel/time/clocksource.c
> 
> That's not a typo. Thats a left over. The function simply cannot fail
> anymore. So the subject of that patch should be something like:
> 
> clocksource: Remove outdated comments

Hi Thomas, sorry for my poor English, I will update this patch title and changelog.

> 
> And the changelog should explain, that the functions always return 0,
> so the comment is just pointless. A nice follow up on that would be to
> actually make the function void instead of returning a pointless int,
> but that requires to check all call sites.

You are right, it's pointless to return 0, I will try to change the function type to void
in a separate patch, thanks!

>  
>> Signed-off-by: Yijing Wang <wangyijing@...wei.com>
>> ---
>>  kernel/time/clocksource.c |    3 ---
>>  1 files changed, 0 insertions(+), 3 deletions(-)
>>
>> diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
>> index ba3e502..9951575 100644
>> --- a/kernel/time/clocksource.c
>> +++ b/kernel/time/clocksource.c
>> @@ -779,8 +779,6 @@ EXPORT_SYMBOL_GPL(__clocksource_updatefreq_scale);
>>   * @scale:	Scale factor multiplied against freq to get clocksource hz
>>   * @freq:	clocksource frequency (cycles per second) divided by scale
>>   *
>> - * Returns -EBUSY if registration fails, zero otherwise.
>> - *
>>   * This *SHOULD NOT* be called directly! Please use the
>>   * clocksource_register_hz() or clocksource_register_khz helper functions.
>>   */
>> @@ -805,7 +803,6 @@ EXPORT_SYMBOL_GPL(__clocksource_register_scale);
>>   * clocksource_register - Used to install new clocksources
>>   * @cs:		clocksource to be registered
>>   *
>> - * Returns -EBUSY if registration fails, zero otherwise.
>>   */
>>  int clocksource_register(struct clocksource *cs)
>>  {
>> -- 
>> 1.7.1
>>
>>
>>
> 
> 


-- 
Thanks!
Yijing

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