Re: [PATCH 3/8] PCI: Move out pci_enable_bridges out of assign_unsigned_bus_res

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On Fri, Sep 28, 2012 at 4:46 PM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote:
> On Thu, Sep 27, 2012 at 2:11 AM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
>> So could use assign_unassigned_bus_res pci root bus add
>
> After your series, acpi_pci_root_start() looks like this:
>
>     pci_assign_unassigned_bus_resources
>     list_for_each_entry(driver, &acpi_pci_drivers, node)
>         driver->add(root);
>     pci_enable_bridges(root->bus);
>
> so apparently it's important that the driver->add() methods be run
> *before* the bridges are enabled.  Why?

pci_enable_bridge
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