[U-Boot] [PATCH 16/16] of: clean up OF_CONTROL ifdef conditionals

Masahiro Yamada yamada.masahiro at socionext.com
Mon Jul 27 14:30:05 CEST 2015


2015-07-27 19:52 GMT+09:00 Marek Vasut <marex at denx.de>:
> On Monday, July 27, 2015 at 09:05:03 AM, Pavel Machek wrote:
>> On Mon 2015-07-27 10:33:51, Masahiro Yamada wrote:
>> > Hi Pavel,
>> >
>> > 2015-07-27 3:38 GMT+09:00 Pavel Machek <pavel at denx.de>:
>> > > Hi!
>> > >
>> > >> We have flipped CONFIG_SPL_DISABLE_OF_CONTROL.  We have cleansing
>> > >> devices, $(SPL_) and CONFIG_IS_ENABLED(), so we are ready to clear
>> > >>
>> > >> away the ugly logic in include/fdtdec.h:
>> > >>  #ifdef CONFIG_OF_CONTROL
>> > >>  # if defined(CONFIG_SPL_BUILD) && !defined(SPL_OF_CONTROL)
>> > >>  #  define OF_CONTROL 0
>> > >>  # else
>> > >>  #  define OF_CONTROL 1
>> > >>  # endif
>> > >>  #else
>> > >>  # define OF_CONTROL 0
>> > >>  #endif
>> > >>
>> > >> Now CONFIG_IS_ENABLED(OF_CONTROL) is the substitute.  It refers to
>> > >> CONFIG_OF_CONTROL for U-boot proper and CONFIG_SPL_OF_CONTROL for
>> > >> SPL.
>> > >
>> > > CONFIG_IS_ENABLED() is a bit too verbose. Could we get something
>> > > shorter, like ENABLED()?
>> >
>> > The prefix "CONFIG_" is important because this must be
>> > searched by scripts/basic/fixdep.c
>> >
>> > We are familiar with IS_ENABLED() which originates in Linux,
>> > so a new build-context-depending macro, CONFIG_IS_ENABLED() is
>> > reasonable naming, I believe.
>> >
>> > Besides,
>> >
>> > IS_ENABLED(CONFIG_OF_CONTROL)  - before
>> > CONFIG_IS_ENABLED(OF_CONTROL)  - after
>>
>> What about CONFIG_EN(OF_CONTROL), then? I don't think confusion is
>> possible...
>
> I don't like CONFIG_EN(), sorry. It looks like shortening something just
> for the sake of shortening it, which is only confusing.

Me neither.



-- 
Best Regards
Masahiro Yamada


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