default or selected kernelversion does not have config value CONFIG_CRYPTO_LIB_CHACHA_INTERNAL.
Result is shown for kernelversion 6.6.99

CONFIG_CRYPTO_LIB_CHACHA_INTERNAL (not configurable)

configname: CONFIG_CRYPTO_LIB_CHACHA_INTERNAL

Linux Kernel Configuration
└─>Library routines
└─>Crypto library routines
└─>CRYPTO_LIB_CHACHA_INTERNAL
In linux kernel since version 5.4.294 (release Date: 2025-06-04)