Adrian Bunk <[email protected]> wrote:
>
> On Mon, Oct 03, 2005 at 02:07:12PM -0700, Tony Luck wrote:
> > > The default_idle() prototype should stay inside some header file.
> >
> > That would be best, yes.
> >
> > > @Patrick:
> > > Any suggestion where it should move to?
> >
> > Of the include files already included directly by arch/ia64/kernel/setup.c,
> > <linux/sched.h> looks the most promising. There's lots of .*idle.* things
> > already in there.
> >
> > Looking at existing precedent: ppc64 has a definition of default_idle()
> > in <asm/machdep.h>
>
> The question whether linux/ or asm/ is the best place for the definition
> boils down to the question whether it is expected that default_idle() is
> present on all architectures or whether it's an architecture-specific
> implementation detail.
Yes, default_idle() is arch-specific and so its prototype should be in an
arch-specific header.
All the implementations happen to have the same signature, so it's tempting
to put the prototype into some generic header, but given that there's no
non-arch-specific caller, we shouldn't do that.
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