PCI: deprecate pci_scan_bus_parented()

Users of pci_scan_bus_parented() should be converted to use either
    pci_scan_root_bus() (preferred, but also calls pci_bus_add_devices)
or
    pci_create_root_bus()
    pci_scan_child_bus()

Since pci_scan_bus_parented(), I'm marking it deprecated now and will
actually remove it later.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 3d84912..dca11ea 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -551,3 +551,15 @@
 Why:	The iwlagn module has been renamed iwlwifi.  The alias will be around
 	for backward compatibility for several cycles and then dropped.
 Who:	Don Fry <donald.h.fry@intel.com>
+
+----------------------------
+
+What:	pci_scan_bus_parented()
+When:	3.5
+Why:	The pci_scan_bus_parented() interface creates a new root bus.  The
+	bus is created with default resources (ioport_resource and
+	iomem_resource) that are always wrong, so we rely on arch code to
+	correct them later.  Callers of pci_scan_bus_parented() should
+	convert to using pci_scan_root_bus() so they can supply a list of
+	bus resources when the bus is created.
+Who:	Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 04c2dc7..944ea21 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1637,6 +1637,7 @@
 	return b;
 }
 
+/* Deprecated; use pci_scan_root_bus() instead */
 struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent,
 		int bus, struct pci_ops *ops, void *sysdata)
 {