MicroLZMA decoder

configname: CONFIG_XZ_DEC_MICROLZMA

Linux Kernel Configuration
└─>Library routines
└─>MicroLZMA decoder
In linux kernel since version 5.2 (release Date: 2019-07-07)  
MicroLZMA is a header format variant where the first byte
of a raw LZMA stream (without the end of stream marker) has
been replaced with a bitwise-negation of the lc/lp/pb
properties byte. MicroLZMA was created to be used in EROFS
but can be used by other things too where wasting minimal
amount of space for headers is important.

Unless you know that you need this, say N.

depends
CONFIG_XZ_DEC

is depended by
CONFIG_EROFS_FS_ZIP_LZMA