CONFIG_CRYPTO_LIB_CHACHA_GENERIC (not configurable)

modulename: libchacha.ko

configname: CONFIG_CRYPTO_LIB_CHACHA_GENERIC

Linux Kernel Configuration
└─>Cryptographic API
└─>CRYPTO_LIB_CHACHA_GENERIC
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
This symbol can be depended upon by arch implementations of the
ChaCha library interface that require the generic code as a
fallback, e.g., for SIMD implementations. If no arch specific
implementation is enabled, this implementation serves the users
of CRYPTO_LIB_CHACHA.

source code: