--- zzzz-none-000/linux-4.4.60/include/linux/memblock.h	2017-04-08 07:53:53.000000000 +0000
+++ hawkeye-5590-729/linux-4.4.60/include/linux/memblock.h	2022-03-30 14:21:53.000000000 +0000
@@ -40,6 +40,7 @@
 	unsigned long cnt;	/* number of regions */
 	unsigned long max;	/* size of the allocated array */
 	phys_addr_t total_size;	/* size of all regions */
+	phys_addr_t start_base;	/* start of the region */
 	struct memblock_region *regions;
 };