--- zzzz-none-000/linux-4.1.52/include/linux/netlink.h	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/include/linux/netlink.h	2022-03-02 11:37:13.000000000 +0000
@@ -108,11 +108,15 @@
  *	use enormous buffer sizes on recvmsg() calls just to avoid
  *	MSG_TRUNC when PAGE_SIZE is very large.
  */
+#if defined(CONFIG_BCM_KF_512MB_DDR) && defined(CONFIG_BCM_512MB_DDR)
+#define NLMSG_GOODSIZE	SKB_WITH_OVERHEAD(4096UL)
+#else
 #if PAGE_SIZE < 8192UL
 #define NLMSG_GOODSIZE	SKB_WITH_OVERHEAD(PAGE_SIZE)
 #else
 #define NLMSG_GOODSIZE	SKB_WITH_OVERHEAD(8192UL)
 #endif
+#endif
 
 #define NLMSG_DEFAULT_SIZE (NLMSG_GOODSIZE - NLMSG_HDRLEN)