Re: [PATCH] kconfig: Make KCONFIG_ALLCONFIG work with randconfig.

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Hi,

On Wed, 28 Nov 2007, Paul Mundt wrote:

> Adrian mentioned a few weeks ago that KCONFIG_ALLCONFIG is the way to
> go to ensure that things like allyes/allmod/allnoconfig work with a
> constrained set of symbols, with the implication that this holds
> true for randconfig as well.

BTW another possibility is to use all{no,mod,yes,random,}.config.

> While allyes/mod/noconfigs do seem to work fine with KCONFIG_ALLCONFIG
> provisions, randconfig tramples all over the provided values at perhaps
> not surprisingly, random.

Please be careful with such broad statements, there is only an issue with 
choice values.

> Debugging this a bit, there seemed to be two issues:
> 
> 	- SYMBOL_DEF and SYMBOL_DEF_USER overlap, which made
> 	  def_sym->flags the same regardless of whether we came from an
> 	  KCONFIG_ALLCONFIG path or not.

Look at how SYMBOL_DEF is used in confdata.c.

> 	- clobbering of the fixed value in conf_choice() by way of
> 	  random() def assignment.

Simply add a test for is_new there.

bye, Roman
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