CONFIG_CRYPTO_CHACHA20_NEON (not configurable)

modulename: chacha-neon.ko

configname: CONFIG_CRYPTO_CHACHA20_NEON

Linux Kernel Configuration
└─>Library routines
└─>Crypto library routines
└─>CRYPTO_CHACHA20_NEON
In linux kernel since version 3.10 (release Date: 2013-06-30)