{Spam?} Re: [PATCH][RFC] Kill off legacy power management stuff.

["Robert P. J. Day" <rpjday@mindspring.com>]

On Fri, 13 Apr 2007, Stephen Rothwell wrote:

> On Fri, 13 Apr 2007 04:20:10 -0400 (EDT) "Robert P. J. Day" <rpjday@mindspring.com> wrote:
> >
> > On Fri, 13 Apr 2007, Stephen Rothwell wrote:
> > >
> > > One thing that comes to mind is that you will need some way to
> > > make sure that only one of ACPI and APM get initialized ...
> >
> > i don't see how that has anything to do with removing legacy PM
> > support.  you can select both ACPI and APM *now*.  if that's a bad
> > thing, then fixing it is a completely independent issue.
>
> Except your patch removes this hunk:
>
> @@ -2264,14 +2248,6 @@ static int __init apm_init(void)
>  		apm_info.disabled = 1;
>  		return -ENODEV;
>  	}
> -	if (PM_IS_ACTIVE()) {
> -		printk(KERN_NOTICE "apm: overridden by ACPI.\n");
> -		apm_info.disabled = 1;
> -		return -ENODEV;
> -	}
> -#ifdef CONFIG_PM_LEGACY
> -	pm_active = 1;
> -#endif
>
> in apm.c and a similar piece of the ACPI initialisation that prevented
> one initialising if the other had already initialised.

you have a point, but note that the macro "PM_IS_ACTIVE" is *defined*
in the header file "linux/pm_legacy.h".  so if that macro is still
essential, its definition will have to be moved elsewhere, no?

my approach was to rip out everything that seemed to be related
to pm_legacy.h, so if that macro disappears, then any references to it
must similarly disappear.

can someone clarify this?  if only one of APM or ACPI can be enabled,
they should find a way to agree on that without needing legacy code to
do it.

rday
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Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

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