hci_unregister_cb  628 include/net/bluetooth/hci_core.h int hci_unregister_cb(struct hci_cb *hcb);
hci_unregister_cb 2073 net/bluetooth/rfcomm/core.c 		hci_unregister_cb(&rfcomm_cb);
hci_unregister_cb 2095 net/bluetooth/rfcomm/core.c 	hci_unregister_cb(&rfcomm_cb);