2.6: kconfig handling of recursive dependencies could be improved

Hi Roman,

I tried to implement a "select at least one of these options" using the following Kconfig snippet:

config A
bool "a"

config B
bool "b"

config C

        bool
        default y if A=n && B=n
        select A
        select B

"make *config" says
Warning! Found recursive dependency: A C A
Warning! Found recursive dependency: C A C B

and handles it a bit strange.

Yes, there is a limited recursion, but it's a finite recursion and I don't know of any other way to express this in the current kconfig language.

cu
Adrian

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

Hi,

This sort of dependency would be better handled with another choice option, but this is not really 2.6 material.

It's not really possible. You can show a comment if nothing is selected and use a reasonable default.

bye, Roman