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- #
- # Library configuration
- #
- config BINARY_PRINTF
- def_bool n
- menu "Library routines"
- config RAID6_PQ
- tristate
- config BITREVERSE
- tristate
- config RATIONAL
- boolean
- config GENERIC_FIND_FIRST_BIT
- bool
- config CRC_CCITT
- tristate "CRC-CCITT functions"
- help
- This option is provided for the case where no in-kernel-tree
- modules require CRC-CCITT functions, but a module built outside
- the kernel tree does. Such modules that use library CRC-CCITT
- functions require M here.
- config CRC16
- tristate "CRC16 functions"
- help
- This option is provided for the case where no in-kernel-tree
- modules require CRC16 functions, but a module built outside
- the kernel tree does. Such modules that use library CRC16
- functions require M here.
- config CRC_T10DIF
- tristate "CRC calculation for the T10 Data Integrity Field"
- help
- This option is only needed if a module that's not in the
- kernel tree needs to calculate CRC checks for use with the
- SCSI data integrity subsystem.
- config CRC_ITU_T
- tristate "CRC ITU-T V.41 functions"
- help
- This option is provided for the case where no in-kernel-tree
- modules require CRC ITU-T V.41 functions, but a module built outside
- the kernel tree does. Such modules that use library CRC ITU-T V.41
- functions require M here.
- config CRC32
- tristate "CRC32 functions"
- default y
- select BITREVERSE
- help
- This option is provided for the case where no in-kernel-tree
- modules require CRC32 functions, but a module built outside the
- kernel tree does. Such modules that use library CRC32 functions
- require M here.
- config CRC7
- tristate "CRC7 functions"
- help
- This option is provided for the case where no in-kernel-tree
- modules require CRC7 functions, but a module built outside
- the kernel tree does. Such modules that use library CRC7
- functions require M here.
- config LIBCRC32C
- tristate "CRC32c (Castagnoli, et al) Cyclic Redundancy-Check"
- select CRYPTO
- select CRYPTO_CRC32C
- help
- This option is provided for the case where no in-kernel-tree
- modules require CRC32c functions, but a module built outside the
- kernel tree does. Such modules that use library CRC32c functions
- require M here. See Castagnoli93.
- Module will be libcrc32c.
- config AUDIT_GENERIC
- bool
- depends on AUDIT && !AUDIT_ARCH
- default y
- #
- # compression support is select'ed if needed
- #
- config ZLIB_INFLATE
- tristate
- config ZLIB_DEFLATE
- tristate
- config LZO_COMPRESS
- tristate
- config LZO_DECOMPRESS
- tristate
- source "lib/xz/Kconfig"
- #
- # These all provide a common interface (hence the apparent duplication with
- # ZLIB_INFLATE; DECOMPRESS_GZIP is just a wrapper.)
- #
- config DECOMPRESS_GZIP
- select ZLIB_INFLATE
- tristate
- config DECOMPRESS_BZIP2
- tristate
- config DECOMPRESS_LZMA
- tristate
- config DECOMPRESS_XZ
- select XZ_DEC
- tristate
- config DECOMPRESS_LZO
- select LZO_DECOMPRESS
- tristate
- #
- # Generic allocator support is selected if needed
- #
- config GENERIC_ALLOCATOR
- boolean
- #
- # reed solomon support is select'ed if needed
- #
- config REED_SOLOMON
- tristate
-
- config REED_SOLOMON_ENC8
- boolean
- config REED_SOLOMON_DEC8
- boolean
- config REED_SOLOMON_ENC16
- boolean
- config REED_SOLOMON_DEC16
- boolean
- #
- # BCH support is selected if needed
- #
- config BCH
- tristate
- config BCH_CONST_PARAMS
- boolean
- help
- Drivers may select this option to force specific constant
- values for parameters 'm' (Galois field order) and 't'
- (error correction capability). Those specific values must
- be set by declaring default values for symbols BCH_CONST_M
- and BCH_CONST_T.
- Doing so will enable extra compiler optimizations,
- improving encoding and decoding performance up to 2x for
- usual (m,t) values (typically such that m*t < 200).
- When this option is selected, the BCH library supports
- only a single (m,t) configuration. This is mainly useful
- for NAND flash board drivers requiring known, fixed BCH
- parameters.
- config BCH_CONST_M
- int
- range 5 15
- help
- Constant value for Galois field order 'm'. If 'k' is the
- number of data bits to protect, 'm' should be chosen such
- that (k + m*t) <= 2**m - 1.
- Drivers should declare a default value for this symbol if
- they select option BCH_CONST_PARAMS.
- config BCH_CONST_T
- int
- help
- Constant value for error correction capability in bits 't'.
- Drivers should declare a default value for this symbol if
- they select option BCH_CONST_PARAMS.
- #
- # Textsearch support is select'ed if needed
- #
- config TEXTSEARCH
- boolean
- config TEXTSEARCH_KMP
- tristate
- config TEXTSEARCH_BM
- tristate
- config TEXTSEARCH_FSM
- tristate
- config BTREE
- boolean
- config HAS_IOMEM
- boolean
- depends on !NO_IOMEM
- default y
- config HAS_IOPORT
- boolean
- depends on HAS_IOMEM && !NO_IOPORT
- default y
- config HAS_DMA
- boolean
- depends on !NO_DMA
- default y
- config CHECK_SIGNATURE
- bool
- config CPUMASK_OFFSTACK
- bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS
- help
- Use dynamic allocation for cpumask_var_t, instead of putting
- them on the stack. This is a bit more expensive, but avoids
- stack overflow.
- config DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
- bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS
- depends on EXPERIMENTAL && BROKEN
- config CPU_RMAP
- bool
- depends on SMP
- #
- # Netlink attribute parsing support is select'ed if needed
- #
- config NLATTR
- bool
- #
- # Generic 64-bit atomic support is selected if needed
- #
- config GENERIC_ATOMIC64
- bool
- config LRU_CACHE
- tristate
- config AVERAGE
- bool "Averaging functions"
- help
- This option is provided for the case where no in-kernel-tree
- modules require averaging functions, but a module built outside
- the kernel tree does. Such modules that use library averaging
- functions require Y here.
- If unsure, say N.
- endmenu
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