linux-kernel - Re: [linux-pm] Re: [Resend][PATCH] PM: Fix dependencies of CONFIG_SUSPEND and CONFIG

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Date:	Mon, 06 Aug 2007 11:29:51 +0200
From:	Johannes Berg <johannes@...solutions.net>
To:	Pavel Machek <pavel@....cz>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, Andi Kleen <ak@...e.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Adrian Bunk <bunk@...sta.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	Russell King <rmk@....linux.org.uk>
Subject: Re: [linux-pm] Re: [Resend][PATCH] PM: Fix dependencies of
	CONFIG_SUSPEND and CONFIG_HIBERNATION (updated)

On Mon, 2007-08-06 at 11:07 +0200, Pavel Machek wrote:
> Hi!
> 
> > +config SUSPEND_UP_POSSIBLE
> > +	bool
> > +	depends on (X86 && !X86_VOYAGER) || (PPC32 && PPC_MPC52xx) \
> > +		   || (PPC64 && (PPC_PSERIES || PPC_PMAC)) || ARM || BLACKFIN \
> > +		   || MIPS || SUPERH || FRV
> > +	depends on !SMP
> > +	default y
> 
> I guess I'd rather left SUSPEND_UP_POSSIBLE to allways y (as it always
> was), and let architectures that can't handle it  not return "mem"
> from list of valid states...

Yeah, that's the utterly broken interface we used to have. Until I fixed
it to have no valid states until architectures implement suspend_ops.
Still, I disagree, why bother with compiling code that can't ever be
used?

johannes

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