[deliverable/linux.git] / lib / Kconfig

#
# 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 NO_GENERIC_PCI_IOPORT_MAP
	bool

config GENERIC_PCI_IOMAP
	bool

config GENERIC_IOMAP
	bool
	select GENERIC_PCI_IOMAP

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 CRC8
	tristate "CRC8 function"
	help
	  This option provides CRC8 function. Drivers may select this
	  when they need to do cyclic redundancy check according CRC8
	  algorithm. Module will be called crc8.

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

config DQL
	bool

#
# 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.

config CORDIC
	tristate "CORDIC algorithm"
	help
	  This option provides an implementation of the CORDIC algorithm;
	  calculations are in fixed point. Module will be called cordic.

config MPILIB
	tristate
	help
	  Multiprecision maths library from GnuPG.
	  It is used to implement RSA digital signature verification,
	  which is used by IMA/EVM digital signature extension.

config MPILIB_EXTRA
	bool
	depends on MPILIB
	help
	  Additional sources of multiprecision maths library from GnuPG.
	  This code is unnecessary for RSA digital signature verification,
	  but can be compiled if needed.

config SIGNATURE
	tristate
	depends on KEYS && CRYPTO
	select CRYPTO_SHA1
	select MPILIB
	help
	  Digital signature verification. Currently only RSA is supported.
	  Implementation is done using GnuPG MPI library

endmenu
Commit	Line	Data
	1	#
	2	# Library configuration
	3	#
	4
	5	config BINARY_PRINTF
	6	def_bool n
	7
	8	menu "Library routines"
	9
	10	config RAID6_PQ
	11	tristate
	12
	13	config BITREVERSE
	14	tristate
	15
	16	config RATIONAL
	17	boolean
	18
	19	config GENERIC_FIND_FIRST_BIT
	20	bool
	21
	22	config NO_GENERIC_PCI_IOPORT_MAP
	23	bool
	24
	25	config GENERIC_PCI_IOMAP
	26	bool
	27
	28	config GENERIC_IOMAP
	29	bool
	30	select GENERIC_PCI_IOMAP
	31
	32	config CRC_CCITT
	33	tristate "CRC-CCITT functions"
	34	help
	35	This option is provided for the case where no in-kernel-tree
	36	modules require CRC-CCITT functions, but a module built outside
	37	the kernel tree does. Such modules that use library CRC-CCITT
	38	functions require M here.
	39
	40	config CRC16
	41	tristate "CRC16 functions"
	42	help
	43	This option is provided for the case where no in-kernel-tree
	44	modules require CRC16 functions, but a module built outside
	45	the kernel tree does. Such modules that use library CRC16
	46	functions require M here.
	47
	48	config CRC_T10DIF
	49	tristate "CRC calculation for the T10 Data Integrity Field"
	50	help
	51	This option is only needed if a module that's not in the
	52	kernel tree needs to calculate CRC checks for use with the
	53	SCSI data integrity subsystem.
	54
	55	config CRC_ITU_T
	56	tristate "CRC ITU-T V.41 functions"
	57	help
	58	This option is provided for the case where no in-kernel-tree
	59	modules require CRC ITU-T V.41 functions, but a module built outside
	60	the kernel tree does. Such modules that use library CRC ITU-T V.41
	61	functions require M here.
	62
	63	config CRC32
	64	tristate "CRC32 functions"
	65	default y
	66	select BITREVERSE
	67	help
	68	This option is provided for the case where no in-kernel-tree
	69	modules require CRC32 functions, but a module built outside the
	70	kernel tree does. Such modules that use library CRC32 functions
	71	require M here.
	72
	73	config CRC7
	74	tristate "CRC7 functions"
	75	help
	76	This option is provided for the case where no in-kernel-tree
	77	modules require CRC7 functions, but a module built outside
	78	the kernel tree does. Such modules that use library CRC7
	79	functions require M here.
	80
	81	config LIBCRC32C
	82	tristate "CRC32c (Castagnoli, et al) Cyclic Redundancy-Check"
	83	select CRYPTO
	84	select CRYPTO_CRC32C
	85	help
	86	This option is provided for the case where no in-kernel-tree
	87	modules require CRC32c functions, but a module built outside the
	88	kernel tree does. Such modules that use library CRC32c functions
	89	require M here. See Castagnoli93.
	90	Module will be libcrc32c.
	91
	92	config CRC8
	93	tristate "CRC8 function"
	94	help
	95	This option provides CRC8 function. Drivers may select this
	96	when they need to do cyclic redundancy check according CRC8
	97	algorithm. Module will be called crc8.
	98
	99	config AUDIT_GENERIC
	100	bool
	101	depends on AUDIT && !AUDIT_ARCH
	102	default y
	103
	104	#
	105	# compression support is select'ed if needed
	106	#
	107	config ZLIB_INFLATE
	108	tristate
	109
	110	config ZLIB_DEFLATE
	111	tristate
	112
	113	config LZO_COMPRESS
	114	tristate
	115
	116	config LZO_DECOMPRESS
	117	tristate
	118
	119	source "lib/xz/Kconfig"
	120
	121	#
	122	# These all provide a common interface (hence the apparent duplication with
	123	# ZLIB_INFLATE; DECOMPRESS_GZIP is just a wrapper.)
	124	#
	125	config DECOMPRESS_GZIP
	126	select ZLIB_INFLATE
	127	tristate
	128
	129	config DECOMPRESS_BZIP2
	130	tristate
	131
	132	config DECOMPRESS_LZMA
	133	tristate
	134
	135	config DECOMPRESS_XZ
	136	select XZ_DEC
	137	tristate
	138
	139	config DECOMPRESS_LZO
	140	select LZO_DECOMPRESS
	141	tristate
	142
	143	#
	144	# Generic allocator support is selected if needed
	145	#
	146	config GENERIC_ALLOCATOR
	147	boolean
	148
	149	#
	150	# reed solomon support is select'ed if needed
	151	#
	152	config REED_SOLOMON
	153	tristate
	154
	155	config REED_SOLOMON_ENC8
	156	boolean
	157
	158	config REED_SOLOMON_DEC8
	159	boolean
	160
	161	config REED_SOLOMON_ENC16
	162	boolean
	163
	164	config REED_SOLOMON_DEC16
	165	boolean
	166
	167	#
	168	# BCH support is selected if needed
	169	#
	170	config BCH
	171	tristate
	172
	173	config BCH_CONST_PARAMS
	174	boolean
	175	help
	176	Drivers may select this option to force specific constant
	177	values for parameters 'm' (Galois field order) and 't'
	178	(error correction capability). Those specific values must
	179	be set by declaring default values for symbols BCH_CONST_M
	180	and BCH_CONST_T.
	181	Doing so will enable extra compiler optimizations,
	182	improving encoding and decoding performance up to 2x for
	183	usual (m,t) values (typically such that m*t < 200).
	184	When this option is selected, the BCH library supports
	185	only a single (m,t) configuration. This is mainly useful
	186	for NAND flash board drivers requiring known, fixed BCH
	187	parameters.
	188
	189	config BCH_CONST_M
	190	int
	191	range 5 15
	192	help
	193	Constant value for Galois field order 'm'. If 'k' is the
	194	number of data bits to protect, 'm' should be chosen such
	195	that (k + mt) <= 2*m - 1.
	196	Drivers should declare a default value for this symbol if
	197	they select option BCH_CONST_PARAMS.
	198
	199	config BCH_CONST_T
	200	int
	201	help
	202	Constant value for error correction capability in bits 't'.
	203	Drivers should declare a default value for this symbol if
	204	they select option BCH_CONST_PARAMS.
	205
	206	#
	207	# Textsearch support is select'ed if needed
	208	#
	209	config TEXTSEARCH
	210	boolean
	211
	212	config TEXTSEARCH_KMP
	213	tristate
	214
	215	config TEXTSEARCH_BM
	216	tristate
	217
	218	config TEXTSEARCH_FSM
	219	tristate
	220
	221	config BTREE
	222	boolean
	223
	224	config HAS_IOMEM
	225	boolean
	226	depends on !NO_IOMEM
	227	default y
	228
	229	config HAS_IOPORT
	230	boolean
	231	depends on HAS_IOMEM && !NO_IOPORT
	232	default y
	233
	234	config HAS_DMA
	235	boolean
	236	depends on !NO_DMA
	237	default y
	238
	239	config CHECK_SIGNATURE
	240	bool
	241
	242	config CPUMASK_OFFSTACK
	243	bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS
	244	help
	245	Use dynamic allocation for cpumask_var_t, instead of putting
	246	them on the stack. This is a bit more expensive, but avoids
	247	stack overflow.
	248
	249	config DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
	250	bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS
	251	depends on EXPERIMENTAL && BROKEN
	252
	253	config CPU_RMAP
	254	bool
	255	depends on SMP
	256
	257	config DQL
	258	bool
	259
	260	#
	261	# Netlink attribute parsing support is select'ed if needed
	262	#
	263	config NLATTR
	264	bool
	265
	266	#
	267	# Generic 64-bit atomic support is selected if needed
	268	#
	269	config GENERIC_ATOMIC64
	270	bool
	271
	272	config LRU_CACHE
	273	tristate
	274
	275	config AVERAGE
	276	bool "Averaging functions"
	277	help
	278	This option is provided for the case where no in-kernel-tree
	279	modules require averaging functions, but a module built outside
	280	the kernel tree does. Such modules that use library averaging
	281	functions require Y here.
	282
	283	If unsure, say N.
	284
	285	config CORDIC
	286	tristate "CORDIC algorithm"
	287	help
	288	This option provides an implementation of the CORDIC algorithm;
	289	calculations are in fixed point. Module will be called cordic.
	290
	291	config MPILIB
	292	tristate
	293	help
	294	Multiprecision maths library from GnuPG.
	295	It is used to implement RSA digital signature verification,
	296	which is used by IMA/EVM digital signature extension.
	297
	298	config MPILIB_EXTRA
	299	bool
	300	depends on MPILIB
	301	help
	302	Additional sources of multiprecision maths library from GnuPG.
	303	This code is unnecessary for RSA digital signature verification,
	304	but can be compiled if needed.
	305
	306	config SIGNATURE
	307	tristate
	308	depends on KEYS && CRYPTO
	309	select CRYPTO_SHA1
	310	select MPILIB
	311	help
	312	Digital signature verification. Currently only RSA is supported.
	313	Implementation is done using GnuPG MPI library
	314
	315	endmenu