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Re: [PATCH] x86/ioapic: Ignore root bridges without a companion ACPI device

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On Sat, Sep 10, 2016 at 11:40:45PM +0800, Rui Wang wrote:
> Some PCI root bridges don't have a corresponding ACPI device.
> This can be the case on some old platforms. Don't call acpi_ioapic_add()
> on these bridges because they can't support ioapic hotplug.
Not just old platforms. VMD is a new device which initializes a root port in software without an acpi handle.

What branch is this based on? I can't find the relevant code/commits

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[PATCH] x86/ioapic: Ignore root bridges without a companion ACPI device Rui Wang <rui.y.wang@intel.com> - 2016-09-10 18:00 +0200
  Re: [PATCH] x86/ioapic: Ignore root bridges without a companion ACPI  device Borislav Petkov <bp@alien8.de> - 2016-09-10 19:40 +0200
  [tip:x86/apic] x86/ioapic: Ignore root bridges without a companion  ACPI device tip-bot for Rui Wang <tipbot@zytor.com> - 2016-09-10 20:50 +0200
  Re: [PATCH] x86/ioapic: Ignore root bridges without a companion ACPI  device Jon Derrick <jonathan.derrick@intel.com> - 2016-09-12 23:30 +0200
    Re: [PATCH] x86/ioapic: Ignore root bridges without a companion ACPI  device Jon Derrick <jonathan.derrick@intel.com> - 2016-09-12 23:50 +0200
    RE: [PATCH] x86/ioapic: Ignore root bridges without a companion  ACPI device "Luck, Tony" <tony.luck@intel.com> - 2016-09-12 23:50 +0200

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