Re: [PATCH 1/3] PM: Introduce new top level suspend and hibernation callbacks (rev. 8)

From: Rafael J. Wysocki
Date: Sun Apr 13 2008 - 19:17:23 EST


On Monday, 14 of April 2008, Nigel Cunningham wrote:
> Hi Rafael etc.

Hi,

> On Mon, 2008-04-14 at 08:47 +1000, Benjamin Herrenschmidt wrote:
> > > Well, I'm not sure and I'm not going to introduce the change right now, after
> > > the paches have been included in -mm.
> > >
> > > That would require quite some changes in the core code that I'd prefer to
> > > avoid for now. We can do something like this in a separate patch series after
> > > the present one settles down a bit.
> >
> > I disagree.
> >
> > Doing it later would introduce yet another major semantic change.
> >
> > I think we should get it right now. There's no hurry in pushing things
> > especially if they aren't quite right.
> >
> > The ability for prepare() callbacks to sync with userland,
> > request_firmware, etc... is an important feature that's been needed for
> > some time imho.
> >
> > Ben.
>
> I agree. These calls have already been changing far too often in
> mainline. I know it's all been necessary but please, can we try to make
> one set of changes and just get it right this time?

Sorry, what exactly has been changing too often? Device suspend callbacks??
They haven't changed since pm_message_t was introduced.

Thanks,
Rafael
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