--- zzzz-none-000/linux-4.4.271/fs/Kconfig	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/fs/Kconfig	2023-04-19 10:22:30.000000000 +0000
@@ -30,6 +30,7 @@
 source "fs/btrfs/Kconfig"
 source "fs/nilfs2/Kconfig"
 source "fs/f2fs/Kconfig"
+source "fs/yaffs2/Kconfig"
 
 config FS_DAX
 	bool "Direct Access (DAX) support"
@@ -73,6 +74,11 @@
           for filesystems like NFS and for the flock() system
           call. Disabling this option saves about 11k.
 
+config DIRECT_IO
+	bool "Enable O_DIRECT support" if EXPERT
+	depends on BLOCK
+	default y
+
 source "fs/notify/Kconfig"
 
 source "fs/quota/Kconfig"
@@ -102,6 +108,7 @@
 
 source "fs/fat/Kconfig"
 source "fs/ntfs/Kconfig"
+source "fs/antfs/Kconfig"
 
 endmenu
 endif # BLOCK