diff --git a/include/linux/idr.h b/include/linux/idr.h
index 871a213a8477eb5f1d7c6ad3318f6b796bac7106..ff94a4875e1cb3beccd4dd13c52cf7d3ee548105 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -82,7 +82,6 @@ int idr_for_each(struct idr *idp,
 void *idr_get_next(struct idr *idp, int *nextid);
 void *idr_replace(struct idr *idp, void *ptr, int id);
 void idr_remove(struct idr *idp, int id);
-void idr_free(struct idr *idp, int id);
 void idr_destroy(struct idr *idp);
 void idr_init(struct idr *idp);