XZ decompression support

modulename: xz_dec.ko

configname: CONFIG_XZ_DEC

Linux Kernel Configuration
└─>Library routines
└─>XZ decompression support
In linux kernel since version 2.6.38 (release Date: 2011-03-14)  
LZMA2 compression algorithm and BCJ filters are supported using
the .xz file format as the container. For integrity checking,
CRC32 is supported. See Documentation/xz.txt for more information.

source code:
lib/xz/
selects
CONFIG_CRC32