diff --git a/include/linux/ide.h b/include/linux/ide.h
index 110d263..eca5082 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1170,6 +1170,7 @@
 int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long);
 
 ide_startstop_t ide_do_park_unpark(ide_drive_t *, struct request *);
+ide_startstop_t ide_do_devset(ide_drive_t *, struct request *);
 
 extern ide_startstop_t ide_do_reset (ide_drive_t *);