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