--- linux-2.6.22.14/fs/Kconfig	2008-01-22 13:58:33.000000000 +0200
+++ linux/fs/Kconfig	2008-01-15 10:59:03.000000000 +0200
@@ -1185,6 +1185,8 @@ config EFS_FS
 	  To compile the EFS file system support as a module, choose M here: the
 	  module will be called efs.
 
+source "fs/yaffs/Kconfig"
+
 config JFFS2_FS
 	tristate "Journalling Flash File System v2 (JFFS2) support"
 	select CRC32