/* Perform INTx swizzling for a device behind one level of bridge. This is required by section 9.1 of the PCI-to-PCI bridge specification for devices behind bridges on add-in cards. For devices with ARI enabled, the slot number is always 0 (see the Implementation Note in section 2.2.8.1 of the PCI Express Base Specification, Revision 2.1)  */
u8 pci_swizzle_interrupt_pin(struct pci_dev *dev, u8 pin)
/* Perform INTx swizzling for a device behind one level of bridge. This is required by section 9.1 of the PCI-to-PCI bridge specification for devices behind bridges on add-in cards. For devices with ARI enabled, the slot number is always 0 (see the Implementation Note in section 2.2.8.1 of the PCI Express Base Specification, Revision 2.1)  */
u8 pci_swizzle_interrupt_pin(struct pci_dev *dev, u8 pin)
{
	int slot;
	if (pci_ari_enabled(dev->bus))
		slot = 0;
	else
		slot = PCI_SLOT(dev->devfn);
	return (((pin - 1) + slot) % 4) + 1;
}