[PATCH v8 15/61] PCI: Only treat non-pref mmio64 as pref if host bridge has mmio64

From: Yinghai Lu
Date: Tue Oct 27 2015 - 17:14:00 EST

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 <yinghai@xxxxxxxxxx>
Tested-by: Khalid Aziz <khalid.aziz@xxxxxxxxxx>
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 b1e4595..95d18ef 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -742,7 +742,7 @@ 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;

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