On Tuesday, 21 August 2007 09:57, Pavel Machek wrote:
> Hi!
>
> > From: Rafael J. Wysocki <rjw@xxxxxxx>
> >
> > If the boot kernel doesn't support ACPI and ACPI is not enabled by the platform
> > boot code, it may be possible to enable ACPI after restoring the system memory
> > from a hibernation image. Implement that.
>
> ACK... and I guess this should go in early. It is possible to test w/o
> rest of patches, (just pass acpi=off to resume kernel, no?),
Yup, that might work.
> and it should get lot of testing.
Why do you think so?
Rafael
> > Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
> > ---
> > drivers/acpi/sleep/main.c | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > Index: linux-2.6.23-rc3/drivers/acpi/sleep/main.c
> > ===================================================================
> > --- linux-2.6.23-rc3.orig/drivers/acpi/sleep/main.c 2007-08-14 00:41:10.000000000 +0200
> > +++ linux-2.6.23-rc3/drivers/acpi/sleep/main.c 2007-08-19 20:01:05.000000000 +0200
> > @@ -240,6 +240,8 @@ static int acpi_hibernation_enter(void)
> >
> > static void acpi_hibernation_finish(void)
> > {
> > + /* If the boot kernel doesn't support ACPI, we may need to enable it */
> > + acpi_enable();
> > acpi_leave_sleep_state(ACPI_STATE_S4);
> > acpi_disable_wakeup_device(ACPI_STATE_S4);
> >
>
--
"Premature optimization is the root of all evil." - Donald Knuth
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