Re: [PATCH] kconfig: add support for new option 'listnewdefconfig'

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2018-04-06 0:03 GMT+09:00 Don Zickus <dzickus@xxxxxxxxxx>:
> On Thu, Apr 05, 2018 at 11:29:11AM +0900, Masahiro Yamada wrote:
>> 2018-04-05 4:56 GMT+09:00 Don Zickus <dzickus@xxxxxxxxxx>:
>> > We at Red Hat/Fedora have generally tried to have a per file breakdown of
>> > every config option we set.  This makes it easy for us to add new options
>> > when they are exposed and keep a changelog of why they were set.
>> >
>> > A Fedora example is here:
>> >   https://src.fedoraproject.org/cgit/rpms/kernel.git/tree/configs/fedora/generic
>> >
>> > Using various merge scripts, we build up a config file and run it through
>> > 'make listnewconfig' and 'make oldnoconfig'.   The idea is to print out new
>> > config options that haven't been manually set and use the default until
>> > a patch is posted to set it properly.
>> >
>> > To speed things up, it would be nice to make it easier to generate a
>> > patch to post the default setting.  The output of 'make listnewconfig'
>> > has two issues that limit us:
>> >
>> > - it doesn't provide the default value
>> > - it doesn't provide the new 'choice' options that get flagged in
>> >   'oldconfig'
>>
>>
>> So, 'listnewconfig' is a subset of 'listnewdefconfig'.
>>
>> I wonder if we could extend 'listnewconfig' to meet your demands
>> instead of adding the new target.
>
> Sure.  I am open to whatever you think is appropriate. :-)


I prefer extending the existing target.




>>
>>
>> What for '#choice' comment ?
>
> This was something silly added by me to make it obvious that
> CONFIG_KERNEL_XZ doesn't needed to be decided, it just needs us to re-review
> our current default to see if we should keep it or switch to something new.
>
> We can drop that piece of the patch.  I wasn't sure if that separating
> 'choices' from 'configs|menuconfigs' is interesting or not.


I think it is better to drop '#choice'.





-- 
Best Regards
Masahiro Yamada
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