linux-kernel - Re: [PATCH] bcma: fix three coding style issues, more than 80 characters per line

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Date:	Sun, 28 Dec 2014 16:01:08 +0100
From:	Arend van Spriel <arend@...adcom.com>
To:	Rafał Miłecki <zajec5@...il.com>
CC:	Sedat Dilek <sedat.dilek@...il.com>,
	Oscar Forner Martinez <oscar.forner.martinez@...il.com>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] bcma: fix three coding style issues, more than 80 characters
 per line

On 12/28/14 15:02, Rafał Miłecki wrote:
> On 28 December 2014 at 10:12, Sedat Dilek<sedat.dilek@...il.com>  wrote:
>> On Sun, Dec 28, 2014 at 9:53 AM, Rafał Miłecki<zajec5@...il.com>  wrote:
>>> On 28 December 2014 at 06:50, Sedat Dilek<sedat.dilek@...il.com>  wrote:
>>>> On Sun, Dec 28, 2014 at 12:44 AM, Rafał Miłecki<zajec5@...il.com>  wrote:
>>>>> On 27 December 2014 at 20:24, Oscar Forner Martinez
>>>>> <oscar.forner.martinez@...il.com>  wrote:
>>>>>> Three lines with more than 80 characters per line have been split in several lines.
>>>>>>
>>>>>> Signed-off-by: Oscar Forner Martinez<oscar.forner.martinez@...il.com>
>>>>>
>>>>> Acked-by: Rafał Miłecki<zajec5@...il.com>
>>>>>
>>>>
>>>> As for the comment-line changes... 80+ chars are allowed for better readability.
>>>> So, please don't do that.
>>>> [ Checkpatch should not warn on this especially for comments. ]
>>>
>>> We almost always split long comments into separated lines in the
>>> kernel. What's different with this case?
>>>
>>
>> 1st it is not mandatory.
>>
>> 2nd it is more readable in one line.
>>
>> -                       /* 4706 CC and PMU watchdogs are clocked at
>> 1/4 of ALP clock */
>> +                       /* 4706 CC and PMU watchdogs are clocked at 1/4 of ALP
>> +                        * clock
>> +                        */
>>
>> I agree with you when the comment would be longer.
>
> So I guess there is some rule like
> "Don't use 2 lines if there is 80 chars + one word"
> ? Where can I find such rules?

Personally, I don't like taking this sliding slope. Just stick to the 80 
characters rule and add a few words in the comment, eg:

			/* The BCM4706 ChipCommon and PMU watchdogs are
			 * clocked at one quarter of the ALP clock.
			 */

Regards,
Arend

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