commit eecf6fb09c79cbce73aef2cb91247c6f313acf64
author Niklas Casaril <niklas@casaril.com> Fri Mar 19 17:10:09 2021 +1000
committer kasjer <kasjer@users.noreply.github.com> Mon Mar 22 08:11:52 2021 +0100
tree 197c3c66cf2582429c29294fa457679aa8d493e3
parent 32621d01b444d99dedba8fe85c44a2bb1b2460c4

transport/usb: Fix len comparison to allow fragmented acl

The comparison previously always triggered on the first fragment received
as the expected length (len) is always larger or equal to the total
received length (om_len). Partly addresses #940.

nimble/transport/usb/src/ble_hci_usb.c

diff --git a/nimble/transport/usb/src/ble_hci_usb.c b/nimble/transport/usb/src/ble_hci_usb.c
index 55c91f2..d09421b 100644
--- a/nimble/transport/usb/src/ble_hci_usb.c
+++ b/nimble/transport/usb/src/ble_hci_usb.c
@@ -211,7 +211,7 @@
     if (om->om_len > BLE_HCI_DATA_HDR_SZ) {
         data = incoming_acl_data->om_data;
         len = data[2] + (data[3] << 8) + BLE_HCI_DATA_HDR_SZ;
-        if (len >= incoming_acl_data->om_len) {
+        if (incoming_acl_data->om_len >= len) {
             incoming_acl_data = NULL;
             rc = ble_hci_usb_rx_acl_ll_cb(om, ble_hci_usb_rx_acl_ll_arg);
             (void)rc;