diff mbox

[v9,14/60] PCI: Only treat non-pref mmio64 as pref if host bridge has mmio64

Message ID 1449810416-2950-15-git-send-email-yinghai@kernel.org (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Yinghai Lu Dec. 11, 2015, 5:06 a.m. UTC 
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@kernel.org>
Tested-by: Khalid Aziz <khalid.aziz@oracle.com>
---
 drivers/pci/setup-bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index d627218..0befb0a 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;