1 files changed, 16 insertions, 0 deletions

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index b0208e20390c..2efdb17d87a3 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1012,6 +1012,22 @@ static inline int __l2cap_no_conn_pending(struct l2cap_chan *chan)
         return !test_bit(CONF_CONNECT_PEND, &chan->conf_state);
 }
 
+/* returns true if at least one AMP active */
+static inline bool hci_amp_capable(void)
+{
+        struct hci_dev *hdev;
+        bool ret = false;
+
+        read_lock(&hci_dev_list_lock);
+        list_for_each_entry(hdev, &hci_dev_list, list)
+                if (hdev->amp_type != AMP_TYPE_BREDR &&
+                    test_bit(HCI_UP, &hdev->flags))
+                        ret = true;
+        read_unlock(&hci_dev_list_lock);
+
+        return ret;
+}
+
 static bool __amp_capable(struct l2cap_chan *chan)
 {
         struct l2cap_conn *conn = chan->conn;