Re: [PATCH 1/2] ACPI / PCI: don't allow PCI devices without irq to be enabled

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On Mon, Aug 12, 2013 at 3:32 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
> On Mon, Aug 12, 2013 at 2:14 PM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote:
>> On Thu, Aug 8, 2013 at 7:57 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
>>> On Thursday, August 08, 2013 03:35:13 PM Heikki Krogerus wrote:
>>>> If there is no ACPI entry for the irq, returning error from
>>>> acpi_pci_enable_irq() if the irq is 0.
>>>>
>>>> Prarit Bhargava reported an issue where he noticed that his
>>>> Dell PowerEdge 840 has buggy BIOS that does not supply ACPI
>>>> entries for irq with some devices. That lead into kernel
>>>> generating a warning "genirq: Flags mismatch irq 0...". This
>>>> will fix that issue.
>>>>
>>>> Signed-off-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
>>>> Tested-by: Prarit Bhargava <prarit@xxxxxxxxxx>
>>>
>>> Hi Bjorn,
>>>
>>> Any objections to this?
>>
>> Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
>
> some USB3 host controller does not have intx configured, but still
> work with MSI?

Huh, OK, I take back my ack, at least while we investigate this.

Bjorn
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