On Fri, Sep 28, 2012 at 6:48 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
> 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?
>
During rebase, the changelog get lost.
pci_enable_bridges
==> pci_enable_device
==> ...
===> pcibios_enable_device
===> pcibios_enable_irq
and one of driver in acpi_pci_drivers, is ioapic drivers and it will
enable ioapic there.
So we need to enable bridges that later.
-Yinghai
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