LZ4

modulename: lz4.ko

configname: CONFIG_CRYPTO_LZ4

Linux Kernel Configuration
└─>Cryptographic API
└─>Compression
└─>LZ4
In linux kernel since version 3.10 (release Date: 2013-06-30)  
LZ4 compression algorithm

See https://github.com/lz4/lz4 for further information.

source code:
crypto/lz4.c

depends
CONFIG_CRYPTO

is selected by
CONFIG_ZRAM