Re: [PATCH] pci: fix unavailable irq number 255 reported by BIOS

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On Thu, Jan 21, 2016 at 3:41 PM, Cao jin <caoj.fnst@xxxxxxxxxxxxxx> wrote:
> Hi,
>
>     IMHO, I think maybe modification on i801_smbus driver is easier.
>
>     Because when i801_smbus request_irq using pci_dev->irq, this
> pci_dev->irq seems still holds the value read from register(
> pci_setup_device->pci_read_irq), if the value is 255, it is invalid in
> register,

Right.

Which is why the PCI core should not leak it into the driver's ->probe callback.

Thanks,
Rafael
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