diff --git a/include/asm-x86/numa_32.h b/include/asm-x86/numa_32.h
index 96fcb15..03d0f7a 100644
--- a/include/asm-x86/numa_32.h
+++ b/include/asm-x86/numa_32.h
@@ -1,3 +1,15 @@
+#ifndef _ASM_X86_32_NUMA_H
+#define _ASM_X86_32_NUMA_H 1
 
-int pxm_to_nid(int pxm);
+extern int pxm_to_nid(int pxm);
 
+#ifdef CONFIG_NUMA
+extern void __init remap_numa_kva(void);
+extern void set_highmem_pages_init(int);
+#else
+static inline void remap_numa_kva(void)
+{
+}
+#endif
+
+#endif /* _ASM_X86_32_NUMA_H */