Bluetooth: Add store_hint parameter to mgmt_new_key

Even for keys that shouldn't be stored some use cases require the
knowledge of a new key having been created so that the conclusion of a
successful pairing can be made. Therefore, always send the mgmt_new_key
event but add a store_hint parameter to it to indicate to user space
whether the key should be stored or not.

Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 232ea8b..2481d25 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1858,12 +1858,13 @@
 	return ret;
 }
 
-int mgmt_new_key(u16 index, struct link_key *key)
+int mgmt_new_key(u16 index, struct link_key *key, u8 persistent)
 {
 	struct mgmt_ev_new_key ev;
 
 	memset(&ev, 0, sizeof(ev));
 
+	ev.store_hint = persistent;
 	bacpy(&ev.key.bdaddr, &key->bdaddr);
 	ev.key.type = key->type;
 	memcpy(ev.key.val, key->val, 16);