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

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Date:	Wed, 25 Apr 2012 10:19:15 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Joe Perches' <joe@...ches.com>
Cc:	'Ryan Mallon' <rmallon@...il.com>,
	'Florian Tobias Schandinat' <FlorianSchandinat@....de>,
	kernel-janitors@...r.kernel.org, linux-fbdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	'Julia Lawall' <julia.lawall@...6.fr>,
	'Jingoo Han' <jg1.han@...sung.com>
Subject: RE: [PATCH] drivers/video/ep93xx-fb.c: clean up error-handling code


On Tue, 24 Apr 2012, Joe Perches wrote:
> -----Original Message-----
> 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.
> 
> $ ./scripts/get_maintainer.pl -f 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)
> 
> $ ./scripts/get_maintainer.pl --git -f drivers/video/ep93xx-fb.c
> Florian Tobias Schandinat <FlorianSchandinat@....de> (maintainer:FRAMEBUFFER LAYER)
> 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-fbdev@...r.kernel.org (open list:FRAMEBUFFER LAYER)
> linux-kernel@...r.kernel.org (open list)
> 
> 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.
> 
> Another way to investigate who actually does
> work on an individual file is to use the
> get_maintainer.pl option "--interactive".

Thank you for your reply.
It is very helpful.

Best regards,
Jingoo Han

> 
> That can give you an output like:
> 
> *  # email/list and role:stats                                        auth sign
> *  1 Florian Tobias Schandinat <FlorianSchandinat@....de>
>      maintainer:FRAMEBUFFER LAYER
> *  2 Ryan Mallon <rmallon@...il.com>                                     4    4
>      commit_signer:2/3=67%,authored lines:645/650=99%,commits:4/8=50%
> *  3 Paul Gortmaker <paul.gortmaker@...driver.com>                       1    1
>      commit_signer:1/3=33%,commits:1/8=12%
> *  4 H Hartley Sweeten <hsweeten@...ionengravers.com>                    0    2
>      commit_signer:1/3=33%,commits:2/8=25%
> *  5 Jesper Juhl <jj@...osbits.net>                                      0    1
>      commit_signer:1/3=33%
> *  6 Jiri Kosina <jkosina@...e.cz>                                       0    1
>      commit_signer:1/3=33%
> *  7 Andrew Morton <akpm@...ux-foundation.org>                           0    2
>      commits:2/8=25%
> *  8 Russell King <rmk+kernel@....linux.org.uk>                          0    1
>      commits:1/8=12%
> *  9 linux-fbdev@...r.kernel.org
>      open list:FRAMEBUFFER LAYER
> * 10 linux-kernel@...r.kernel.org
>      open list
> 
> 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.

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