diff -up ./arch/x86/mm/init_32.c.altmap ./arch/x86/mm/init_32.c

--- ./arch/x86/mm/init_32.c.altmap	2018-10-31 19:01:52.000000000 +0900

+++ ./arch/x86/mm/init_32.c	2018-10-31 19:03:08.000000000 +0900

@@ -844,14 +844,14 @@ void __init mem_init(void)

 }

 #ifdef CONFIG_MEMORY_HOTPLUG

-int arch_add_memory(int nid, u64 start, u64 size, bool for_device)

+int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap, bool for_device)

 {

 	struct pglist_data *pgdata = NODE_DATA(nid);

 	struct zone *zone = pgdata->node_zones + ZONE_HIGHMEM;

 	unsigned long start_pfn = start >> PAGE_SHIFT;

 	unsigned long nr_pages = size >> PAGE_SHIFT;

-	return __add_pages(nid, zone, start_pfn, nr_pages);

+	return __add_pages(nid, zone, start_pfn, nr_pages, altmap);

 }

 #ifdef CONFIG_MEMORY_HOTREMOVE