linux-kernel - Re: [PATCH] drivers/video/ep93xx-fb.c: clean up error-handling code

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Date:	Wed, 25 Apr 2012 07:12:28 +1000
From:	Ryan Mallon <rmallon@...il.com>
To:	Joe Perches <joe@...ches.com>
CC:	Julia Lawall <julia.lawall@...6.fr>,
	Jingoo Han <jg1.han@...sung.com>,
	'Florian Tobias Schandinat' <FlorianSchandinat@....de>,
	kernel-janitors@...r.kernel.org, linux-fbdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers/video/ep93xx-fb.c: clean up error-handling code

On 24/04/12 22:46, Joe Perches wrote:

> On Thu, 2012-04-19 at 07:14 +0200, Julia Lawall wrote:
>> I don't know thw impact of the ./.  I use the options
>>
>> --nokeywords --nogit-fallback --subsystem --norolestats -f
>>
>> julia
>>
>> On Thu, 19 Apr 2012, Jingoo Han wrote:
>>
>>>> -----Original Message-----
>>>> From: Ryan Mallon
> []
>>>> Oddly, scripts/get_maintainer.pl on this file doesn't return me, even
>>>> though, according to git blame, I am the author of 90% of the commits.
>>>> Should I have an entry in the MAINTAINERS file, or is
>>>> scripts/get_maintainer.pl not working properly?
>>>
>>> There are optional differences in using scripts/get_maintainer.pl.
>>> If you use './' ahead of file path, you will see your name.
>>>
>>> Without './' ahead of 'drivers/video/ep93xx-fb.c':
>>> ./scripts/get_maintainer.pl --file drivers/video/ep93xx-fb.c
>>> Florian Tobias Schandinat <FlorianSchandinat@....de> (maintainer:FRAMEBUFFER LAYER)
>>> linux-fbdev@...r.kernel.org (open list:FRAMEBUFFER LAYER)
>>> linux-kernel@...r.kernel.org (open list)
>>>
>>> With './' ahead of 'drivers/video/ep93xx-fb.c':
>>> ./scripts/get_maintainer.pl --file ./drivers/video/ep93xx-fb.c
>>> Ryan Mallon <rmallon@...il.com> (commit_signer:2/3=67%)
>>> Paul Gortmaker <paul.gortmaker@...driver.com> (commit_signer:1/3=33%)
>>> H Hartley Sweeten <hsweeten@...ionengravers.com> (commit_signer:1/3=33%)
>>> Jesper Juhl <jj@...osbits.net> (commit_signer:1/3=33%)
>>> Jiri Kosina <jkosina@...e.cz> (commit_signer:1/3=33%)
>>> linux-kernel@...r.kernel.org (open list)
> 
> Prefixing "./" to the file path bypasses the normal
> get_maintainers pattern check for file maintainership.
> 
> Florian Schandinat and linux-fbdev are not returned
> in the second lookup above.
> 
> One of the patterns for FRAMEBUFFER is
> F:	drivers/video/
> which is a direct match for is ep93xx-fb.c file,
> so --git is not used by default.
> 
> Adding --git may be appropriate and it also returns
> Ryan's name in this case.


Hi Joe,

Thanks for the info.

> Nominally, as framebuffer maintainer, Florian
> should also have "signed-off" on these commits,
> but many subsystems don't actually have a
> single path or person for patches and commits.

> 
> This file came into the tree via Andrew Morton.
> 

The original driver was written before Florian became the 
framebuffer maintainer. The subsystem had no real maintainer
at the time, which is why it went via Andrew.

> About maintainership for individual files:
> 
> If anyone thinks they are the maintainer for
> a particular file, generally they should submit
> a patch to MAINTAINERS adding a section with
> their name, maintainership level and an
> appropriate file pattern.


Hmm, perhaps author is a better term than maintainer here. Any 
patches should still go via the framebuffer maintainer, Florian,
but it would be useful in many cases for the original and/or
most regular commit author to also get Cc'ed since in many
cases they will have a better understanding of the code, even
if the aren't "maintaining" it.

~Ryan

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