[PATCH 12/13] PCI: Only treat non-pref mmio64 as pref if host bridge has mmio64

[Yinghai Lu]

If host bridge does not have mmio64 above 4G, We don't need to
treat device non-pref mmio64 as as pref mmio64.

Signed-off-by: Yinghai Lu <ying...@kernel.org>
Tested-by: Khalid Aziz <khalid.a...@oracle.com>
---
 drivers/pci/setup-bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index b3fd314..7a0e59b 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -738,7 +738,7 @@ int pci_claim_bridge_resource(struct pci_dev *bridge, int i)
 static bool pci_up_path_over_pref_mem64(struct pci_bus *bus)
 {
        if (pci_is_root_bus(bus))
-               return true;
+               return to_pci_host_bridge(bus->bridge)->has_mem64;
 
        if (bus->self) {
                int i;
-- 
2.9.3