--- zzzz-none-000/linux-4.1.52/net/netfilter/xt_TCPMSS.c	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/net/netfilter/xt_TCPMSS.c	2022-03-02 11:37:14.000000000 +0000
@@ -211,6 +211,11 @@
 	__be16 newlen;
 	int ret;
 
+#if defined(CONFIG_BCM_KF_BLOG) && defined(CONFIG_BLOG_FEATURE)
+	skb->ipt_check |= IPT_TARGET_TCPMSS;
+	if ( skb->ipt_check & IPT_TARGET_CHECK )
+		return XT_CONTINUE;
+#endif
 	ret = tcpmss_mangle_packet(skb, par,
 				   PF_INET,
 				   iph->ihl * 4,
@@ -236,6 +241,12 @@
 	int tcphoff;
 	int ret;
 
+#if defined(CONFIG_BCM_KF_BLOG) && defined(CONFIG_BLOG_FEATURE)
+	skb->ipt_check |= IPT_TARGET_TCPMSS;
+	if ( skb->ipt_check & IPT_TARGET_CHECK )
+		return XT_CONTINUE;
+#endif
+
 	nexthdr = ipv6h->nexthdr;
 	tcphoff = ipv6_skip_exthdr(skb, sizeof(*ipv6h), &nexthdr, &frag_off);
 	if (tcphoff < 0)