CONFIG_CRYPTO_ARCH_HAVE_LIB_CHACHA (not configurable)

configname: CONFIG_CRYPTO_ARCH_HAVE_LIB_CHACHA

Linux Kernel Configuration
└─>Library routines
└─>Crypto library routines
└─>CRYPTO_ARCH_HAVE_LIB_CHACHA
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
Declares whether the architecture provides an arch-specific
accelerated implementation of the ChaCha library interface,
either builtin or as a module.

depends
 or CONFIG_CRYPTO