diff --git a/include/linux/compaction.h b/include/linux/compaction.h
index cc9f7a4..bb2bbdb 100644
--- a/include/linux/compaction.h
+++ b/include/linux/compaction.h
@@ -24,8 +24,6 @@
 			int order, gfp_t gfp_mask, nodemask_t *mask,
 			bool sync);
 extern unsigned long compaction_suitable(struct zone *zone, int order);
-extern unsigned long compact_zone_order(struct zone *zone, int order,
-					gfp_t gfp_mask, bool sync);
 
 /* Do not skip compaction more than 64 times */
 #define COMPACT_MAX_DEFER_SHIFT 6
@@ -69,12 +67,6 @@
 	return COMPACT_SKIPPED;
 }
 
-static inline unsigned long compact_zone_order(struct zone *zone, int order,
-					       gfp_t gfp_mask, bool sync)
-{
-	return COMPACT_CONTINUE;
-}
-
 static inline void defer_compaction(struct zone *zone)
 {
 }
diff --git a/mm/compaction.c b/mm/compaction.c
index a0e4202..899d956 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -582,7 +582,7 @@
 	return ret;
 }
 
-unsigned long compact_zone_order(struct zone *zone,
+static unsigned long compact_zone_order(struct zone *zone,
 				 int order, gfp_t gfp_mask,
 				 bool sync)
 {