lib/Kconfig

   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 + m*t) <= 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 CLZ_TAB
 286         bool
 287
 288 config CORDIC
 289         tristate "CORDIC algorithm"
 290         help
 291           This option provides an implementation of the CORDIC algorithm;
 292           calculations are in fixed point. Module will be called cordic.
 293
 294 config MPILIB
 295         tristate
 296         select CLZ_TAB
 297         help
 298           Multiprecision maths library from GnuPG.
 299           It is used to implement RSA digital signature verification,
 300           which is used by IMA/EVM digital signature extension.
 301
 302 config MPILIB_EXTRA
 303         bool
 304         depends on MPILIB
 305         help
 306           Additional sources of multiprecision maths library from GnuPG.
 307           This code is unnecessary for RSA digital signature verification,
 308           but can be compiled if needed.
 309
 310 config SIGNATURE
 311         tristate
 312         depends on KEYS && CRYPTO
 313         select CRYPTO_SHA1
 314         select MPILIB
 315         help
 316           Digital signature verification. Currently only RSA is supported.
 317           Implementation is done using GnuPG MPI library
 318
 319 endmenu