--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -30,6 +30,7 @@ source "fs/ocfs2/Kconfig"
 source "fs/btrfs/Kconfig"
 source "fs/nilfs2/Kconfig"
 source "fs/f2fs/Kconfig"
+source "fs/yaffs2/Kconfig"
 
 config FS_DAX
 	bool "Direct Access (DAX) support"
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -125,3 +125,5 @@ obj-y				+= exofs/ # Multiple modules
 obj-$(CONFIG_CEPH_FS)		+= ceph/
 obj-$(CONFIG_PSTORE)		+= pstore/
 obj-$(CONFIG_EFIVAR_FS)		+= efivarfs/
+obj-$(CONFIG_YAFFS_FS)		+= yaffs2/
+