diff --git a/tools/include/linux/mm.h b/tools/include/linux/mm.h
index f3c82ab5b14cd..7d73da0980473 100644
--- a/tools/include/linux/mm.h
+++ b/tools/include/linux/mm.h
@@ -37,4 +37,9 @@ static inline void totalram_pages_add(long count)
 {
 }
 
+static inline int early_pfn_to_nid(unsigned long pfn)
+{
+	return 0;
+}
+
 #endif