linux-kernel - Re: [patch] [resend] Fix swsusp with PNP BIOS

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Date:	Tue, 25 Jul 2006 15:17:35 -0400
From:	Adam Belay <abelay@...ell.com>
To:	Nigel Cunningham <ncunningham@...uxmail.org>,
	Ondrej Zary <linux@...nbow-software.org>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux List <linux-kernel@...r.kernel.org>,
	Pavel Machek <pavel@....cz>
Subject: Re: [patch] [resend] Fix swsusp with PNP BIOS

On Tue, 2006-07-25 at 09:23 +1000, Nigel Cunningham wrote:
> Hi.
> 
> On Tuesday 25 July 2006 07:25, Rafael J. Wysocki wrote:
> > Hi,
> >
> > On Monday 24 July 2006 20:28, Ondrej Zary wrote:
> > > Hello,
> > > swsusp is unable to suspend my machine (DTK FortisPro TOP-5A notebook)
> > > with kernel 2.6.17.5 because it's unable to suspend PNP device 00:16
> > > (mouse).
> > >
> > > The problem is in PNP BIOS. pnp_bus_suspend() calls pnp_stop_dev() for
> > > the device if the device can be disabled according to pnp_can_disable().
> > > The problem is that pnpbios_disable_resources() returns -EPERM if the
> > > device is not dynamic (!pnpbios_is_dynamic()) but insert_device() happily
> > > sets PNP_DISABLE capability/flag even if the device is not dynamic. So we
> > > try to disable non-dynamic devices which will fail.
> > > This patch prevents insert_device() from setting PNP_DISABLE if the
> > > device is not dynamic and fixes suspend on my system.
> >
> > Thanks for the patch.
> >
> > Pavel, what do you think?
> 
> Adam is probably a better person to ask. (Added to cc).

I appreciate it.

> 
> Regards,
> 
> Nigel

The patch looks good.  Maybe we should even do this check for
PNP_CONFIGURABLE.

Thanks,
Adam


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