On 09/17/2012 11:03 AM, Yinghai Lu wrote:
> On Sat, Sep 15, 2012 at 4:27 PM, Yinghai Lu <ying...@kernel.org> wrote:
>> On Fri, Sep 14, 2012 at 8:05 PM, Jiang Liu <liu...@gmail.com> wrote:
>>> From: Jiang Liu <jiang....@huawei.com>
>>>
>>> Now ACPI devices are created before/destroyed after corresponding PCI
>>> devices, and acpi_platform_notify/acpi_platform_notify_remove will
>>> update PCI<->ACPI binding relationship when creating/destroying PCI
>>> devices, there's no need to invoke bind/unbind callbacks from ACPI
>>> device probe/destroy routines anymore. So remove bind/unbind callbacks
>>> from acpi_device_ops.
>> for pci root bus, acpi_bus_trim() is used to remove acpi_device.
>>
>> and later in acpi_pci_root_remove to stop pci drivers/ioapic driver,
>> iommu driver then remove pci devices.
>>
>> if call back is removed there, then could some functions in
>> acpi_pci_unbind() will be skipped.
>>
>> I really do not want to add pci_stop_bus_devices() in
>> pci_root_hp.c::handle_root_bridge_removal before
>> calling acpi_bus_trim...
>
> FYI, I solved the problem. will call apci_bus_remove() two times. it
> will make sure pci devices
> get removed at first before acpi devices...
Hi Yinghai,
Great! So we could remove the acpi<->PCI logic now.
Thanks!
Gerry
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