--- zzzz-none-000/linux-4.1.52/include/net/inet_sock.h	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/include/net/inet_sock.h	2022-03-02 11:37:13.000000000 +0000
@@ -91,7 +91,13 @@
 				wscale_ok  : 1,
 				ecn_ok	   : 1,
 				acked	   : 1,
+#if !defined(CONFIG_BCM_MPTCP) || !defined(CONFIG_BCM_KF_MPTCP)
 				no_srccheck: 1;
+#else
+				no_srccheck: 1,
+				mptcp_rqsk : 1,
+				saw_mpc    : 1;
+#endif
 	kmemcheck_bitfield_end(flags);
 	u32                     ir_mark;
 	union {