1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 5e5191ec8de..401e03c920b 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -472,7 +472,12 @@ void pci_bus_size_bridges(struct pci_bus *bus)
                 break;
 
         case PCI_CLASS_BRIDGE_PCI:
+                /* don't size subtractive decoding (transparent)
+                 * PCI-to-PCI bridges */
+                if (bus->self->transparent)
+                        break;
                 pci_bridge_check_ranges(bus);
+                /* fall through */
         default:
                 pbus_size_io(bus);
                 /* If the bridge supports prefetchable range, size it