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# SPDX-License-Identifier: GPL-2.0-only
config XZ_DEC
tristate "XZ decompression support"
select CRC32
help
LZMA2 compression algorithm and BCJ filters are supported using
the .xz file format as the container. For integrity checking,
CRC32 is supported. See Documentation/staging/xz.rst for more information.
if XZ_DEC
config XZ_DEC_X86
bool "x86 BCJ filter decoder" if EXPERT
default y
select XZ_DEC_BCJ
config XZ_DEC_POWERPC
bool "PowerPC BCJ filter decoder" if EXPERT
default y
select XZ_DEC_BCJ
config XZ_DEC_IA64
bool "IA-64 BCJ filter decoder" if EXPERT
default y
select XZ_DEC_BCJ
config XZ_DEC_ARM
bool "ARM BCJ filter decoder" if EXPERT
default y
select XZ_DEC_BCJ
config XZ_DEC_ARMTHUMB
bool "ARM-Thumb BCJ filter decoder" if EXPERT
default y
select XZ_DEC_BCJ
config XZ_DEC_SPARC
bool "SPARC BCJ filter decoder" if EXPERT
default y
select XZ_DEC_BCJ
endif
config XZ_DEC_BCJ
bool
default n
config XZ_DEC_TEST
tristate "XZ decompressor tester"
default n
depends on XZ_DEC
help
This allows passing .xz files to the in-kernel XZ decoder via
a character special file. It calculates CRC32 of the decompressed
data and writes diagnostics to the system log.
Unless you are developing the XZ decoder, you don't need this
and should say N.
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