agp: nvidia: Deprecate pci_get_bus_and_slot()

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Replace pci_get_bus_and_slot() with pci_get_domain_bus_and_slot()
and extract the domain number from struct pci_dev.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>

drivers/char/agp/nvidia-agp.c

@@ -340,11 +340,17 @@ static int agp_nvidia_probe(struct pci_dev *pdev,
 	u8 cap_ptr;
 
 	nvidia_private.dev_1 =
-		pci_get_bus_and_slot((unsigned int)pdev->bus->number, PCI_DEVFN(0, 1));
+		pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
+					    (unsigned int)pdev->bus->number,
+					    PCI_DEVFN(0, 1));
 	nvidia_private.dev_2 =
-		pci_get_bus_and_slot((unsigned int)pdev->bus->number, PCI_DEVFN(0, 2));
+		pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
+					    (unsigned int)pdev->bus->number,
+					    PCI_DEVFN(0, 2));
 	nvidia_private.dev_3 =
-		pci_get_bus_and_slot((unsigned int)pdev->bus->number, PCI_DEVFN(30, 0));
+		pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
+					    (unsigned int)pdev->bus->number,
+					    PCI_DEVFN(30, 0));
 
 	if (!nvidia_private.dev_1 || !nvidia_private.dev_2 || !nvidia_private.dev_3) {
 		printk(KERN_INFO PFX "Detected an NVIDIA nForce/nForce2 "