Re: [TRIVIAL] sanitize power management config menus, take two

[Tomas Szepe <szepe@pinerecords.com>]

> [mochel@osdl.org]
> 
> > > > o  only enable cpufreq options if power management is selected
> > > > o  don't put cpufreq options in a separate submenu
> > > 
> > > Yes, but what I do not understand is why cpufreq need power management.
> > 
> > Because it is a power management option. :)
> > 
> > CONFIG_PM is a dummy option, it does not link any code into the kernel
> > by itself.
> 
> Actually, it does:
> 
> ./arch/arm/kernel/Makefile:obj-$(CONFIG_PM)             += pm.o
> ./arch/arm/mach-pxa/Makefile:obj-$(CONFIG_PM) += pm.o sleep.o
> ./arch/arm/mach-sa1100/Makefile:obj-$(CONFIG_PM)                        += pm.o sleep.o
> ./arch/i386/kernel/Makefile:obj-$(CONFIG_PM)            += suspend.o
> ./drivers/pci/Makefile:obj-$(CONFIG_PM)  += power.o
> ./kernel/Makefile:obj-$(CONFIG_PM) += pm.o power/
> 
> But, I agree with your change anyway. 

Trouble is, the same goes for ACPI -- it doesn't require that CONFIG_PM
code be present.

I think the correct x86 solution would be to introduce a real dummy
option for the menus, and imply CONFIG_PM if APM or swsusp (the two
options that seem to actually need CONFIG_PM code) is enabled.

-- 
Tomas Szepe <szepe@pinerecords.com>