When the PCI_REASSIGN_ALL_RSRC is set, each resource for a pci_dev will be
unset. which means the pci core will reassign those resources.
While this behavior will clean up the resources information for VFs, whose
value is calculated in virtfn_add.
This patch adds a condition. If the pci_dev is a VF, skip the resource
unset process.
Signed-off-by: Wei Yang <weiyang@xxxxxxxxxxxxxxxxxx>
---
arch/powerpc/kernel/pci-common.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index d9476c1..c449a26 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -824,6 +824,12 @@ static void pcibios_fixup_resources(struct pci_dev *dev)
pci_name(dev));
return;
}
+
+#ifdef CONFIG_PCI_IOV
+ if (dev->is_virtfn)
+ return;
+#endif
+
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
struct resource *res = dev->resource + i;
struct pci_bus_region reg;
--
1.7.9.5
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