[PATCH] acpiphp: hotplug slot hotplug

o hotplug slots add
  When the hot-added PCI device is p2p bridge, acpiphp calls
  find_p2p_bridge() to add hotplug slots.

o hotplug slots remove
  When the hot-removing PCI device is p2p bridge, acpiphp
  calls cleanup_p2p_bridge() to remove hotplug slots.

o notify handler exchange
  When the p2p bridge is added, acpiphp changes the notify
  hanlder.
  If no bridge device is inserted into the hotpluggable PCI
  slot, acpiphp installs the notify handler for function.
  After the p2p bridge hot-add, acpiphp has to install the
  notify handler for bridge. Because, the role of the
  handlers are not same. The hot-remove case is ditto.

Signed-off-by: MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index 467ac70a46ff..17a93f890dba 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -75,6 +75,10 @@ struct acpiphp_bridge {
         struct list_head list;
         acpi_handle handle;
         struct acpiphp_slot *slots;
+
+        /* Ejectable PCI-to-PCI bridge (PCI bridge and PCI function) */
+        struct acpiphp_func *func;
+
         int type;
         int nr_slots;
 
@@ -122,6 +126,7 @@ struct acpiphp_slot {
  */
 struct acpiphp_func {
         struct acpiphp_slot *slot;      /* parent */
+        struct acpiphp_bridge *bridge;  /* Ejectable PCI-to-PCI bridge */
 
         struct list_head sibling;
         struct pci_dev *pci_dev;