I would like to enable reiserfs for the various systems we are moving to buster.
In the previous version ( the config for reiserfs was set to "CONFIG_REISERFS_FS=m" in /boot/config-3.16.0-4-amd64) in debian 8.11.
In Buster, this is set to "# CONFIG_REISERFS_FS is not set" in /boot/config-5.4.14-sunxi64 (on an pine64).
How can I enable this in the new config??