KEVENT: add new uevent for dock

so that userspace can be notified of dock and undock events.
Signed-off-by: NKristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLen Brown <len.brown@intel.com>

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 {

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;
 	}