diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 125e7b7f34ffd13462e551b31c79cd03ab0d3572..f7cb8e0758b48a5b7c49e0099d0c3cbc60ae23d8 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -486,12 +486,7 @@ void __ref 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