[PATCH] Separate pci bits out of struct device_node

This patch pulls the PCI-related junk out of struct device_node and
puts it in a separate structure, struct pci_dn.  The device_node now
just has a void * pointer in it, which points to a struct pci_dn for
nodes that represent PCI devices.  It could potentially be used in
future for device-specific data for other sorts of devices, such as
virtual I/O devices.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/pci/hotplug/rpaphp_pci.c b/drivers/pci/hotplug/rpaphp_pci.c
index 17a0279ebcb9..49e4d10a6488 100644
--- a/drivers/pci/hotplug/rpaphp_pci.c
+++ b/drivers/pci/hotplug/rpaphp_pci.c
@@ -51,10 +51,12 @@ static struct pci_bus *find_bus_among_children(struct pci_bus *bus,
 
 struct pci_bus *rpaphp_find_pci_bus(struct device_node *dn)
 {
-        if (!dn->phb || !dn->phb->bus)
+        struct pci_dn *pdn = dn->data;
+
+        if (!pdn  || !pdn->phb || !pdn->phb->bus)
                 return NULL;
 
-        return find_bus_among_children(dn->phb->bus, dn);
+        return find_bus_among_children(pdn->phb->bus, dn);
 }
 EXPORT_SYMBOL_GPL(rpaphp_find_pci_bus);
 
@@ -229,7 +231,7 @@ rpaphp_pci_config_slot(struct pci_bus *bus)
         if (!dn || !dn->child)
                 return NULL;
 
-        slotno = PCI_SLOT(dn->child->devfn);
+        slotno = PCI_SLOT(PCI_DN(dn->child)->devfn);
 
         /* pci_scan_slot should find all children */
         num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0));