[PATCH V7 05/17] powerpc/pci: Don't unset pci resources for VFs

Wei Yang weiyang at linux.vnet.ibm.com
Thu Jul 24 16:22:15 EST 2014

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.

This patch adds a condition. If the pci_dev is a VF, skip the resource
unset process.

Signed-off-by: Wei Yang <weiyang at linux.vnet.ibm.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 b49c72f..ee70f57 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -794,6 +794,10 @@ static void pcibios_fixup_resources(struct pci_dev *dev)
+	if (dev->is_virtfn)
+		return;
 	for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
 		struct resource *res = dev->resource + i;
 		struct pci_bus_region reg;

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