Re: ARM defconfig files

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From: Linus Torvalds
Date: Monday, July 12, 2010 - 12:04 pm

2010/7/12 Uwe Kleine-König <u.kleine-koenig@pengutronix.de>:

Well, I can hardly refuse a pull that removes almost 200k lines. So
I'd happily pull it. Just this single line in your email is a very
very powerful thing:


However, before I would pull, I'd definitely like to make sure we at
least have some way forward too, and clarify some issues. So I have a
couple of questions:

 - is this guaranteed to be a no-op as things stand now, and what are
the secondary effects of it?

   Put another way: I realize that fairly late in the -rc series is
actually a really good time to do this, rather than during the merge
window itself when things are in flux. However, while it would be a
good time to pull this for that reason, it's also a _horrible_ time to
pull if it then regresses the defconfig uses, or if it causes horrible
problems for linux-next merging etc.

 - what happens when somebody wants to update the defconfig files?

   This is a question that involves a number of people, because over
the last half year, we've had lots of people changing them. "git
shortlog -ns" on that ARM config directory gives 39 people in the last
half year, with the top looking roughly like

    26  Ben Dooks
    10  Tony Lindgren
     4  Haojian Zhuang
     4  Kukjin Kim
     3  Santosh Shilimkar
     3  Sriram
     2  Janusz Krzysztofik
    ....

and how are these people going to do their updates going forward
without re-introducing the noise?

IOW, I'd _love_ to get rid of almost 200k lines of noise and your
approach would seem to have the advantage that it's "invisible" to
users. But I would want to get some kind of assurance that it's
practical to do so.

                                  Linus
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Messages in current thread:
Re: ARM defconfig files, Linus Torvalds, (Thu Jun 3, 7:48 am)
Re: ARM defconfig files, Tony Lindgren, (Thu Jun 3, 9:46 am)
Re: ARM defconfig files, Daniel Walker, (Thu Jun 3, 9:53 am)
Re: ARM defconfig files, Russell King, (Thu Jun 3, 11:10 am)
Re: ARM defconfig files, Russell King, (Thu Jun 3, 11:13 am)
Re: ARM defconfig files, Linus Torvalds, (Thu Jun 3, 11:18 am)
Re: ARM defconfig files, Daniel Walker, (Thu Jun 3, 11:20 am)
Re: ARM defconfig files, Linus Torvalds, (Thu Jun 3, 11:21 am)
Re: ARM defconfig files, Al Viro, (Thu Jun 3, 11:30 am)
Re: ARM defconfig files, Russell King, (Thu Jun 3, 11:41 am)
Re: ARM defconfig files, Linus Torvalds, (Thu Jun 3, 11:53 am)
Re: ARM defconfig files, Russell King, (Thu Jun 3, 11:53 am)
Re: ARM defconfig files, Linus Torvalds, (Thu Jun 3, 11:56 am)
Re: ARM defconfig files, Russell King, (Thu Jun 3, 12:20 pm)
Re: ARM defconfig files, Paul Mundt, (Thu Jun 3, 12:26 pm)
Re: ARM defconfig files, Daniel Walker, (Thu Jun 3, 12:35 pm)
Re: ARM defconfig files, Russell King, (Thu Jun 3, 12:45 pm)
Re: ARM defconfig files, Daniel Walker, (Thu Jun 3, 12:49 pm)
Re: ARM defconfig files, Russell King, (Thu Jun 3, 12:57 pm)
Re: ARM defconfig files, Linus Torvalds, (Thu Jun 3, 1:05 pm)
Re: ARM defconfig files, Daniel Walker, (Thu Jun 3, 1:06 pm)
Re: ARM defconfig files, Linus Torvalds, (Thu Jun 3, 1:09 pm)
Re: ARM defconfig files, Russell King, (Thu Jun 3, 1:18 pm)
Re: ARM defconfig files, Nicolas Pitre, (Thu Jun 3, 1:20 pm)
Re: ARM defconfig files, Linus Torvalds, (Thu Jun 3, 1:31 pm)
Re: ARM defconfig files, Nicolas Pitre, (Thu Jun 3, 1:34 pm)
Re: ARM defconfig files, Tony Lindgren, (Thu Jun 3, 2:17 pm)
Re: ARM defconfig files, Tony Lindgren, (Thu Jun 3, 2:33 pm)
Re: ARM defconfig files, Daniel Walker, (Thu Jun 3, 2:48 pm)
Re: ARM defconfig files, Grant Likely, (Thu Jun 3, 3:15 pm)
Re: ARM defconfig files, Daniel Walker, (Thu Jun 3, 3:24 pm)
Re: ARM defconfig files, Nicolas Pitre, (Thu Jun 3, 3:45 pm)
Re: ARM defconfig files, Kevin Hilman, (Thu Jun 3, 5:23 pm)
Re: ARM defconfig files, Paul Mackerras, (Thu Jun 3, 5:36 pm)
Re: ARM defconfig files, Benjamin Herrenschmidt, (Thu Jun 3, 6:02 pm)
Re: ARM defconfig files, Benjamin Herrenschmidt, (Thu Jun 3, 6:06 pm)
Re: ARM defconfig files, Tony Lindgren, (Thu Jun 3, 9:53 pm)
Re: ARM defconfig files, Tony Lindgren, (Thu Jun 3, 9:59 pm)
Re: ARM defconfig files, Felipe Balbi, (Thu Jun 3, 10:18 pm)
Re: ARM defconfig files, Tony Lindgren, (Thu Jun 3, 10:29 pm)
Re: ARM defconfig files, Geert Uytterhoeven, (Thu Jun 3, 11:30 pm)
Re: ARM defconfig files, Geert Uytterhoeven, (Thu Jun 3, 11:53 pm)
Re: ARM defconfig files, Benjamin Herrenschmidt, (Fri Jun 4, 1:52 am)
Re: ARM defconfig files, Catalin Marinas, (Fri Jun 4, 4:31 am)
Re: ARM defconfig files, Grant Likely, (Fri Jun 4, 5:39 am)
Re: ARM defconfig files, Felipe Contreras, (Sat Jun 5, 6:47 am)
Re: ARM defconfig files, Felipe Contreras, (Sat Jun 5, 7:12 am)
Re: ARM defconfig files, Linus Torvalds, (Sat Jun 5, 7:39 am)
Re: ARM defconfig files, Felipe Contreras, (Sat Jun 5, 9:39 am)
Re: ARM defconfig files, david, (Sat Jun 5, 8:28 pm)
Re: ARM defconfig files, david, (Sat Jun 5, 8:53 pm)
Re: ARM defconfig files, Catalin Marinas, (Tue Jun 8, 8:30 am)
Re: ARM defconfig files, Daniel Walker, (Tue Jun 8, 9:37 am)
Re: ARM defconfig files, Uwe Kleine-König, (Mon Jun 14, 1:32 am)
Re: ARM defconfig files, Uwe Kleine-König, (Wed Jun 30, 3:40 am)
Re: ARM defconfig files, Uwe Kleine-König, (Mon Jul 12, 8:55 am)
Re: ARM defconfig files, Linus Torvalds, (Mon Jul 12, 9:51 am)
Re: ARM defconfig files, Russell King - ARM Linux, (Mon Jul 12, 10:32 am)
Re: ARM defconfig files, Linus Torvalds, (Mon Jul 12, 10:40 am)
Re: ARM defconfig files, Uwe Kleine-König, (Mon Jul 12, 11:50 am)
Re: ARM defconfig files, Linus Torvalds, (Mon Jul 12, 12:04 pm)
Re: ARM defconfig files, Nicolas Pitre, (Mon Jul 12, 12:09 pm)
Re: ARM defconfig files, Nicolas Pitre, (Mon Jul 12, 12:17 pm)
Re: ARM defconfig files, Linus Torvalds, (Mon Jul 12, 12:34 pm)
Re: ARM defconfig files, Grant Likely, (Mon Jul 12, 12:50 pm)
Re: ARM defconfig files, Uwe Kleine-König, (Mon Jul 12, 12:59 pm)
Re: ARM defconfig files, Russell King - ARM Linux, (Mon Jul 12, 1:06 pm)
Re: ARM defconfig files, Nicolas Pitre, (Mon Jul 12, 1:14 pm)
Re: ARM defconfig files, Nicolas Pitre, (Mon Jul 12, 1:29 pm)
Re: ARM defconfig files, Arnd Bergmann, (Mon Jul 12, 1:31 pm)
Re: ARM defconfig files, Nicolas Pitre, (Mon Jul 12, 1:50 pm)
Re: ARM defconfig files, Linus Torvalds, (Mon Jul 12, 2:54 pm)
Re: ARM defconfig files, David Brown, (Mon Jul 12, 4:05 pm)
Re: ARM defconfig files, Linus Torvalds, (Mon Jul 12, 4:18 pm)
Re: ARM defconfig files, David Brown, (Mon Jul 12, 4:34 pm)
Re: ARM defconfig files, Nicolas Pitre, (Mon Jul 12, 5:55 pm)
Re: ARM defconfig files, Uwe Kleine-König, (Tue Jul 13, 12:07 am)
optimized script [Was: ARM defconfig files], Uwe Kleine-König, (Tue Jul 13, 1:07 am)
Re: optimized script [Was: ARM defconfig files], Olof Johansson, (Tue Jul 13, 11:04 am)
Re: ARM defconfig files, Rob Landley, (Tue Jul 13, 11:32 am)
Re: ARM defconfig files, Grant Likely, (Tue Jul 13, 11:32 am)
Re: optimized script [Was: ARM defconfig files], Nicolas Pitre, (Tue Jul 13, 4:39 pm)
Re: ARM defconfig files, Felipe Contreras, (Wed Jul 14, 2:13 am)
Re: ARM defconfig files, Felipe Contreras, (Wed Jul 14, 2:21 am)
Re: ARM defconfig files, Uwe Kleine-König, (Wed Jul 14, 6:20 am)
Re: ARM defconfig files, Tony Luck, (Wed Jul 14, 10:37 am)