notifier: Pass data argument to callback

This allows to pass additional information to the notifier callback
which is useful if sender and receiver do not share any other distinct
data structure.

Will be used first for the clock reset notifier.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/notify.c b/notify.c
index bcd3fc532f..a6bac1f783 100644
--- a/notify.c
+++ b/notify.c
@@ -29,11 +29,11 @@ void notifier_list_remove(NotifierList *list, Notifier *notifier)
     QTAILQ_REMOVE(&list->notifiers, notifier, node);
 }
 
-void notifier_list_notify(NotifierList *list)
+void notifier_list_notify(NotifierList *list, void *data)
 {
     Notifier *notifier, *next;
 
     QTAILQ_FOREACH_SAFE(notifier, &list->notifiers, node, next) {
-        notifier->notify(notifier);
+        notifier->notify(notifier, data);
     }
 }