linux-kernel - Re: bloated defconfigs

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Message-ID: <20180728150351.467c46ae@aktux>
Date:   Sat, 28 Jul 2018 15:03:51 +0200
From:   Andreas Kemnade <andreas@...nade.info>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: bloated defconfigs

Hi,

On Sat, 28 Jul 2018 16:01:41 +0300
Andy Shevchenko <andy.shevchenko@...il.com> wrote:

> On Sat, Jul 28, 2018 at 3:59 PM, Andreas Kemnade <andreas@...nade.info> wrote:
> > Hi,
> >
> > I just stumbled upon our defconfigs.
> >
> > andi@...ux:~/gta04/gta04-kernel$ ls -l arch/arm/configs/ -Sr | tail -n
> > 10 -rw-r--r-- 1 andi andi   9524 Apr  7 14:53 imote2_defconfig
> > -rw-r--r-- 1 andi andi   9985 Jul 28 13:34 imx_v6_v7_defconfig
> > -rw-r--r-- 1 andi andi  10118 Apr  7 14:53 ezx_defconfig
> > -rw-r--r-- 1 andi andi  10665 Apr  7 14:53 s3c2410_defconfig
> > -rw-r--r-- 1 andi andi  13161 May 29 18:14 omap2plus_defconfig
> > -rw-r--r-- 1 andi andi  17834 May 29 18:14 pxa_defconfig
> > -rw-r--r-- 1 andi andi  24624 Jul 28 13:34 multi_v7_defconfig
> > -rw-r--r-- 1 andi andi 157222 Jul 28 13:34 letux_udoo_defconfig
> > -rw-r--r-- 1 andi andi 157271 Jul 28 13:34 letux_lpae_defconfig
> > -rw-r--r-- 1 andi andi 157352 Jul 28 13:34 letux_defconfig
> >
> >
> > So we are bloated somehow. So I am wondering how these defconfigs are created.
> > AFAIK the tool is
> >
> > make ARCH=arm CROSS_COMPILE=... savedefconfig
> >
> > the file can then be used as a defconfig. I just did it and copied it over to
> > .config and used
> > make ARCH=arm CROSS_COMPILE=... olddefconfig
> >
> > The result is the same. But the defconfig created by savedefconfig is only 20KB.
> > Well, what is the advantage? We have a better overview where we have
> > non-default values.  
> 
> So, why not to send patches?
> 
sorry for the noise, wrong list, these bloated letux*defconfigs are not
mainline.

Regards,
Andreas

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