default or selected kernelversion does not have config value CONFIG_BLK_DEV_CRYPTOLOOP.
Result is shown for kernelversion 6.9.9
Cryptoloop Support (DEPRECATED)
modulename: cryptoloop.ko
configname: CONFIG_BLK_DEV_CRYPTOLOOP
Linux Kernel Configuration
└─>Device Drivers
└─>Block devices
└─>Cryptoloop Support (DEPRECATED)
In linux kernel since version 2.6.20 (release Date: 2007-02-04)
Say Y here if you want to be able to use the ciphers that are
provided by the CryptoAPI as loop transformation. This might be
used as hard disk encryption.
WARNING: This device is not safe for journaled file systems like
ext3 or Reiserfs. Please use the Device Mapper crypto module
instead, which can be configured to be on-disk compatible with the
cryptoloop device. cryptoloop support will be removed in Linux 5.16.
provided by the CryptoAPI as loop transformation. This might be
used as hard disk encryption.
WARNING: This device is not safe for journaled file systems like
ext3 or Reiserfs. Please use the Device Mapper crypto module
instead, which can be configured to be on-disk compatible with the
cryptoloop device. cryptoloop support will be removed in Linux 5.16.