2 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 2d229327959e..0503b2ed8bae 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -46,6 +46,8 @@ enum kobject_action {
         KOBJ_UMOUNT     = (__force kobject_action_t) 0x05,      /* umount event for block devices (broken) */
         KOBJ_OFFLINE    = (__force kobject_action_t) 0x06,      /* device offline */
         KOBJ_ONLINE     = (__force kobject_action_t) 0x07,      /* device online */
+        KOBJ_UNDOCK     = (__force kobject_action_t) 0x08,      /* undocking */
+        KOBJ_DOCK       = (__force kobject_action_t) 0x09,      /* dock */
 };
 
 struct kobject {
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 7f20e7b857cb..2b1530fc573b 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -50,6 +50,10 @@ static char *action_to_string(enum kobject_action action)
                 return "offline";
         case KOBJ_ONLINE:
                 return "online";
+        case KOBJ_DOCK:
+                return "dock";
+        case KOBJ_UNDOCK:
+                return "undock";
         default:
                 return NULL;
         }