Re: [PATCH v2] PCI hotplug: move IOAPIC support from acpiphp to ioapic driver

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On Mon, 26 Oct 2009 11:20:47 -0600
Bjorn Helgaas <bjorn.helgaas@xxxxxx> wrote:

> This patch moves PCI I/O APIC support from acpiphp to a separate
> driver.
> 
> Like pciehp and shpchp, acpiphp handles PCI hotplug, i.e., addition
> and removal of PCI adapters.  But in addition, acpiphp handles some
> ACPI hotplug, such as the addition of new host bridges, and the I/O
> APIC support was tangled up with that.
> 
> I don't think the I/O APIC support needs to be in acpiphp; PCI I/O
> APICs usually appear as a function on a PCI host bridge, and we'll
> enumerate the APIC before any of the devices behind the bridge that
> use it.
> 
> As far as I know, nobody actually uses I/O APIC hotplug.  It depends
> on acpi_register_ioapic(), which is only implemented for ia64, and I
> don't think any vendors have supported I/O chassis hotplug yet.

Applied to linux-next, thanks.

-- 
Jesse Barnes, Intel Open Source Technology Center
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