--- a/arch/x86/mm/init_32.c	2017-07-06 16:37:46.000000000 -0700
+++ b/arch/x86/mm/init_32.c	2017-08-06 06:29:29.459776079 -0700
@@ -845,7 +845,7 @@
 }
 
 #ifdef CONFIG_MEMORY_HOTPLUG
-int arch_add_memory(int nid, u64 start, u64 size)
+int arch_add_memory(int nid, u64 start, u64 size, bool for_device)
 {
 	struct pglist_data *pgdata = NODE_DATA(nid);
 	struct zone *zone = pgdata->node_zones + ZONE_HIGHMEM;