--- zzzz-none-000/linux-4.1.38/drivers/net/ppp/pppoe.c	2017-01-18 18:48:06.000000000 +0000
+++ bcm63-7582-715/linux-4.1.38/drivers/net/ppp/pppoe.c	2020-11-25 10:06:48.000000000 +0000
@@ -497,7 +497,11 @@
 		goto abort;
 
 	ph = pppoe_hdr(skb);
+#if defined(CONFIG_BCM_KF_PPP)
+	if ((ph->code != PADT_CODE) || (ph->sid))
+#else
 	if (ph->code != PADT_CODE)
+#endif /* CONFIG_BCM_KF_PPP */
 		goto abort;
 
 	pn = pppoe_pernet(dev_net(dev));