[PATCH v12 11/21] powerpc/pci: Don't unset PCI resources for VFs

[Bjorn Helgaas]

From: Wei Yang <weiyang at linux.vnet.ibm.com>

If we're going to reassign resources with flag PCI_REASSIGN_ALL_RSRC, all
resources will be cleaned out during device header fixup time and then get
reassigned by PCI core.  However, the VF resources won't be reassigned and
thus, we shouldn't clean them out.

If the pci_dev is a VF, skip the resource unset process.

Signed-off-by: Wei Yang <weiyang at linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas at google.com>
---
 arch/powerpc/kernel/pci-common.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 2a525c938158..82031011522f 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -788,6 +788,10 @@ static void pcibios_fixup_resources(struct pci_dev *dev)
 		       pci_name(dev));
 		return;
 	}
+
+	if (dev->is_virtfn)
+		return;
+
 	for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
 		struct resource *res = dev->resource + i;
 		struct pci_bus_region reg;