[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, 4 insertions, 2 deletions

diff --git a/arch/ppc64/kernel/pci.c b/arch/ppc64/kernel/pci.c
index b5ca7d8347e2..446b4654883f 100644
--- a/arch/ppc64/kernel/pci.c
+++ b/arch/ppc64/kernel/pci.c
@@ -837,9 +837,11 @@ int pcibios_scan_all_fns(struct pci_bus *bus, int devfn)
         * device tree.  If they are then we need to scan all the
         * functions of this slot.
         */
-       for (dn = busdn->child; dn; dn = dn->sibling)
-               if ((dn->devfn >> 3) == (devfn >> 3))
+       for (dn = busdn->child; dn; dn = dn->sibling) {
+               struct pci_dn *pdn = dn->data;
+               if (pdn && (pdn->devfn >> 3) == (devfn >> 3))
                        return 1;
+       }
 
        return 0;
 }