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PCI: Convert pcibios_resource_to_bus() to take a pci_bus, not a pci_dev

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These interfaces:

  pcibios_resource_to_bus(struct pci_dev *dev, *bus_region, *resource)
  pcibios_bus_to_resource(struct pci_dev *dev, *resource, *bus_region)

took a pci_dev, but they really depend only on the pci_bus.  And we want to
use them in resource allocation paths where we have the bus but not a
device, so this patch converts them to take the pci_bus instead of the
pci_dev:

  pcibios_resource_to_bus(struct pci_bus *bus, *bus_region, *resource)
  pcibios_bus_to_resource(struct pci_bus *bus, *resource, *bus_region)

In fact, with standard PCI-PCI bridges, they only depend on the host
bridge, because that's the only place address translation occurs, but
we aren't going that far yet.

[bhelgaas: changelog]
Signed-off-by: Yinghai Lu <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
This commit is contained in:
Yinghai Lu 2013-12-09 22:54:40 -08:00 • committed by Bjorn Helgaas
commit fc2798502f
17 changed files with 49 additions and 51 deletions
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5
drivers/scsi/sym53c8xx_2/sym_glue.c
View file

@ -1531,7 +1531,7 @@ static int sym_iomap_device(struct sym_device *device)
struct pci_bus_region bus_addr;
int i = 2;
pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[1]);
pcibios_resource_to_bus(pdev->bus, &bus_addr, &pdev->resource[1]);
device->mmio_base = bus_addr.start;
if (device->chip.features & FE_RAM) {
@ -1541,7 +1541,8 @@ static int sym_iomap_device(struct sym_device *device)
*/
if (!pdev->resource[i].flags)
i++;
pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[i]);
pcibios_resource_to_bus(pdev->bus, &bus_addr,
&pdev->resource[i]);
device->ram_base = bus_addr.start;
}