diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 4e4e340..6a5dbdc 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -101,6 +101,8 @@
 extern void free_bootmem_node(pg_data_t *pgdat,
 			      unsigned long addr,
 			      unsigned long size);
+extern void *alloc_bootmem_section(unsigned long size,
+				   unsigned long section_nr);
 
 #ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE
 #define alloc_bootmem_node(pgdat, x) \