diff -drupN a/fs/Kconfig b/fs/Kconfig
--- a/fs/Kconfig	2017-10-21 18:09:07.000000000 +0300
+++ b/fs/Kconfig	2022-06-09 05:02:34.000000000 +0300
@@ -204,6 +204,7 @@ source "fs/hfsplus/Kconfig"
 source "fs/befs/Kconfig"
 source "fs/bfs/Kconfig"
 source "fs/efs/Kconfig"
+source "fs/yaffs2/Kconfig"
 source "fs/jffs2/Kconfig"
 # UBIFS File system configuration
 source "fs/ubifs/Kconfig"