diff --git a/include/linux/ide.h b/include/linux/ide.h
index 350ef47ed616f4d9898469eaa6656d654bc33b5c..fcd98e1d186300189df9ddd24807d52992c6aea2 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -545,6 +545,9 @@ struct ide_drive_s {
 
 	int		lun;		/* logical unit */
 	int		crc_count;	/* crc counter to reduce drive speed */
+
+	unsigned long	debug_mask;	/* debugging levels switch */
+
 #ifdef CONFIG_BLK_DEV_IDEACPI
 	struct ide_acpi_drive_link *acpidata;
 #endif