Add comments

When the BSSID is automatically generated by the system,
it will not be passed as a parameter to the join function.

scripts/verify.sh

@@ -211,6 +211,8 @@ if [ $final_ret -eq 0 ]; then
     echo "(be patient, it will take some time to route...)"
     echo "================================================================================"
     sudo ip netns exec ns3 ping -c 1 10.0.0.5
+
+    # sudo ip netns exec ns3 ping -c 1 10.0.0.5
     ping_rc=$?
     if [ $ping_rc -ne 0 ]; then
         final_ret=8

vwifi.c

@@ -2074,6 +2074,8 @@ static int vwifi_join_ibss(struct wiphy *wiphy,
         return -ERESTARTSYS;
     /* Retrieve IBSS configuration parameters */
     memcpy(vif->ssid, params->ssid, params->ssid_len);
+    /* When the BSSID is automatically generated by the system, it will not be
+     * passed as a parameter to the join function. */
     if (params->bssid)
         memcpy(vif->bssid, params->bssid, ETH_ALEN);
     vif->ibss_chandef = params->chandef;