On Wed, Jun 18, 2014 at 01:56:21PM +0800, Jiang Liu wrote:
> For hot-added PCIe ports, it always generates a warning message on x86
> platforms when binding to portdrv as:
> "device [8086:0e0b] has invalid IRQ; check vendor BIOS".
>
> It's due to that we check pci_dev->irq before actually allocating IRQ
> for the PCI device:
> if (!dev->irq && dev->pin) {
> dev_warn(&dev->dev, "device [%04x:%04x] has invalid IRQ; "
> "check vendor BIOS\n", dev->vendor, dev->device);
> }
> status = pcie_port_device_register(dev);
> -->pci_enable_device(dev);
> -->pci_enable_device_flags()
> -->do_pci_enable_device()
> -->pcibios_enable_device()
> -->pcibios_enable_irq()
>
> This warning message isn't generated for PCIe ports present at boot time
> because x86 arch code has called acpi_pci_irq_enable() in pci_acpi_init()
> for each PCI device for safety.
>
> Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
Applied to pci/misc for v3.17, thanks!
> ---
> Hi Bjorn,
> I have rebased it onto v3.16-rc1 and changed the patch title
> according to your suggestion.
> Thanks!
> Gerry
> ___
> drivers/pci/pcie/portdrv_pci.c | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
> index 80887eaa0668..2ccc9b926ea7 100644
> --- a/drivers/pci/pcie/portdrv_pci.c
> +++ b/drivers/pci/pcie/portdrv_pci.c
> @@ -203,10 +203,6 @@ static int pcie_portdrv_probe(struct pci_dev *dev,
> (pci_pcie_type(dev) != PCI_EXP_TYPE_DOWNSTREAM)))
> return -ENODEV;
>
> - if (!dev->irq && dev->pin) {
> - dev_warn(&dev->dev, "device [%04x:%04x] has invalid IRQ; check vendor BIOS\n",
> - dev->vendor, dev->device);
> - }
> status = pcie_port_device_register(dev);
> if (status)
> return status;
> --
> 1.7.10.4
>
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