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SubjectRe: [PATCH] Remove CONFIG_PM altogether, enable power management all the time
Date
On Wednesday, February 09, 2011, Mark Brown wrote:
> On Tue, Feb 08, 2011 at 03:35:29PM -0800, Frank Rowand wrote:
>
> > For 2.6.38-rc4, x86_64, CONFIG_NR_CPUS=4:
>
> > size vmlinux
> > text data bss dec hex filename
> >
> > 6553910 3555020 9994240 20103170 132c002 vmlinux with CONFIG_PM
> > 6512652 3553116 9994240 20060008 1321768 vmlinux without CONFIG_PM
> >
> > 41258 1904 0 43162 delta
>
> > That is big enough for me to care.
>
> Hrm, that's pretty surprising. It'd be interesting to know how much of
> that is due to the PM core itself and how much of that is from drivers.
> For the drivers CONFIG_PM isn't really the option they should be using
> in the first place - they mostly want some combination of PM_SLEEP and
> PM_RUNTIME for the specific functionality. I'm running some checks now.
>
> > > CONFIG_PM_SLEEP=y
>
> Raphael's patch will make this a user visible option in place of raw
> CONFIG_PM by default so you'd be able to turn that off.

No, it won't (just to clarify).

Thanks,
Rafael


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