Re: [PATCH 1/3] PCI PM: Do not disable and enable bridges duringsuspend-resume

From: Pavel Machek
Date: Sat Feb 07 2009 - 05:14:08 EST


Hi!

> their standard config spaces are restored. Fix this by not attempting
> to disable bridges during suspend and enable them during resume.

...

> Index: linux-2.6/drivers/pci/pci-driver.c
> ===================================================================
> --- linux-2.6.orig/drivers/pci/pci-driver.c
> +++ linux-2.6/drivers/pci/pci-driver.c
> @@ -428,16 +428,18 @@ static int pci_pm_default_resume(struct
> {
> pci_fixup_device(pci_fixup_resume, pci_dev);
>
> - if (!pci_is_bridge(pci_dev))
> - pci_enable_wake(pci_dev, PCI_D0, false);
> + if (pci_is_bridge(pci_dev))
> + return 0;
>
> + pci_enable_wake(pci_dev, PCI_D0, false);
> return pci_pm_reenable_device(pci_dev);
> }

Are you sure? This goes from doing reenable_device to not doing it for
bridges, seemingly contradicting changelog?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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