linux-kernel - Re: [PATCH] checkkconfigsymbols.py: add option -i to ignore files

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Message-ID: <CAD3Xx4Lxh9P0EGW=RcUE6VBnyFmZmp4b+2C8MvTrOu1=etsJJg@mail.gmail.com>
Date:	Fri, 1 May 2015 22:13:03 +0200
From:	Valentin Rothberg <valentinrothberg@...il.com>
To:	Paul Bolle <pebolle@...cali.nl>
Cc:	Greg KH <gregkh@...uxfoundation.org>,
	hengelein Stefan <stefan.hengelein@....de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] checkkconfigsymbols.py: add option -i to ignore files

On Fri, May 1, 2015 at 9:31 PM, Paul Bolle <pebolle@...cali.nl> wrote:
> Valentin Rothberg schreef op wo 29-04-2015 om 16:58 [+0200]:
>> Sometimes a user might be interested to filter certain reports (e.g.,
>> the many defconfigs).
>
> Is this actually useful outside of filtering out defconfigs?

It's a regex, so we can filter entire paths as well (e.g., -i
'arch/.*' to ignore all issues in arch/).  Until now, I only used it
to get rid of all the defconfigs.

>> Now, this can be achieved by specifying a Python
>> regex with -i / --ignore.
>
> Patch hijack: it's been my view for some time now that almost all
> defconfigs are outdated in one way or another. And they are outdated
> because they are not, as far as I can tell, updated regularly. So I
> wonder whether there are any guidelines for defconfigs. What is their
> purpose? What exactly can one expect when using a defconfig?
>

As far as I know, it's really hard to manually configure certain
boards.  With defconfigs, only few people have to go through the fire.
Two years ago I tried to manually select a kernel configuration for my
Nexus 7 and failed desperately since some feature constraints are just
not visible/understandable from the menu.  Not that I am an ARM
developer, but there I understood the need to have a defconfig : )

Kind regards,
 Valentin

> Paul Bolle
>
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