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| author | Bjorn Helgaas <bhelgaas@google.com> | 2017-05-18 22:39:19 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-05-18 22:39:19 +0200 |
| commit | 7ee214b540d9453af297cd19c43002018ed73fea (patch) | |
| tree | 3bf86a9485c6bf87fa0168a206b2a03844b2b80f /arch/mips/pci/pci-legacy.c | |
| parent | MIPS: Loongson: Remove unused PCI_BAR_COUNT definition (diff) | |
| download | linux-7ee214b540d9453af297cd19c43002018ed73fea.tar.xz linux-7ee214b540d9453af297cd19c43002018ed73fea.zip | |
MIPS: PCI: Remove unused busn_offset
pci_add_resource_offset() is for host bridge windows where the bridge
translates CPU addresses to PCI bus addresses by adding an offset. To my
knowledge, no host bridge translates bus numbers, so this is only useful
for MEM and IO windows. In any event, host->busn_offset is never set to
anything other than zero, so pci_add_resource() is sufficient.
a2e50f53d535 ("MIPS: PCI: Add a hook for IORESOURCE_BUS in
pci_controller/bridge_controller") also added busn_resource itself. This
is currently unused but may be used by future SGI IP27 fixes, so I left it
there.
Tested-by: Joshua Kinard <kumba@gentoo.org> # SGI IP30 and IP27
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Joshua Kinard <kumba@gentoo.org>
Diffstat (limited to 'arch/mips/pci/pci-legacy.c')
| -rw-r--r-- | arch/mips/pci/pci-legacy.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/mips/pci/pci-legacy.c b/arch/mips/pci/pci-legacy.c index 3a84f6c0c840..174575a9a112 100644 --- a/arch/mips/pci/pci-legacy.c +++ b/arch/mips/pci/pci-legacy.c @@ -86,8 +86,7 @@ static void pcibios_scanbus(struct pci_controller *hose) hose->mem_resource, hose->mem_offset); pci_add_resource_offset(&resources, hose->io_resource, hose->io_offset); - pci_add_resource_offset(&resources, - hose->busn_resource, hose->busn_offset); + pci_add_resource(&resources, hose->busn_resource); bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose, &resources); hose->bus = bus; |