Re: kconfig bug - select vs. depends

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On Fri, 14 Mar 2008 18:55:01 +0100 Bastian Blank wrote:

> Hi folks
> 
> I work on the s390 kernel, linus/linux2.6.git, and found something which
> looks buggy. The kernel have HWMON enabled even if the dependencies does
> not allow it.
> 
> Dependency structure:
> | menuconfig THERMAL
> |         bool "Generic Thermal sysfs driver"
> |         select HWMON
> |         default y
> | 
> | menuconfig HWMON
> |         tristate "Hardware Monitoring support"
> |         depends on HAS_IOMEM
> |         default y
> | 
> | config HAS_IOMEM
> |         boolean
> |         depends on !NO_IOMEM
> |         default y
> | 
> | config NO_IOMEM
> |         def_bool y
> 
> HWMON should never be selectable in this case, but the select forces it
> to yes:
> | Hardware Monitoring support (HWMON) [Y/?] (NEW) y

Yes, that's a known & longstanding problem (that select does not
follow/honor dependencies).

BTW, why does THERMAL default to y?


---
~Randy
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