Bluetooth: host: Warn on incomplete adv reports

When the controller forwards incomplete reports to the host,
the application currently has no way of reassembling them.
Therefore the application may fail to parse the data.

Issue a warning until
#37368
is resolved.

Signed-off-by: Rubin Gerritsen <[email protected]>

Author: rugeGerritsen

subsys/bluetooth/host/scan.c

@@ -535,6 +535,15 @@ void bt_hci_le_adv_ext_report(struct net_buf *buf)
 		/* Convert "Legacy" property to Extended property. */
 		adv_info.adv_props = evt->evt_type ^ BT_HCI_LE_ADV_PROP_LEGACY;
 
+		if (BT_HCI_LE_ADV_EVT_TYPE_DATA_STATUS(evt->evt_type) ==
+		    BT_HCI_LE_ADV_EVT_TYPE_DATA_STATUS_PARTIAL) {
+			/* Handling of incomplete reports is currently not
+			 * handled in the host. The remaining advertising
+			 * reports may therefore contain partial data.
+			 */
+			BT_WARN("Incomplete adv report");
+		}
+
 		le_adv_recv(&evt->addr, &adv_info, buf, evt->length);
 
 		net_buf_pull(buf, evt->length);
@@ -629,6 +638,14 @@ void bt_hci_le_per_adv_report(struct net_buf *buf)
 	info.cte_type = BIT(evt->cte_type);
 	info.addr = &per_adv_sync->addr;
 
+	if (evt->data_status == BT_HCI_LE_ADV_EVT_TYPE_DATA_STATUS_PARTIAL) {
+		/* Handling of incomplete reports is currently not
+		 * handled in the host. The remaining advertising
+		 * reports may therefore contain partial data.
+		 */
+		BT_WARN("Incomplete per adv report");
+	}
+
 	SYS_SLIST_FOR_EACH_CONTAINER(&pa_sync_cbs, listener, node) {
 		if (listener->recv) {
 			net_buf_simple_save(&buf->b, &state);