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 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html