1# 2# Library configuration 3# 4 5config BINARY_PRINTF 6 def_bool n 7 8menu "Library routines" 9 10config RAID6_PQ 11 tristate 12 13config BITREVERSE 14 tristate 15 16config RATIONAL 17 boolean 18 19config GENERIC_FIND_FIRST_BIT 20 bool 21 22config NO_GENERIC_PCI_IOPORT_MAP 23 bool 24 25config GENERIC_PCI_IOMAP 26 bool 27 28config GENERIC_IOMAP 29 bool 30 select GENERIC_PCI_IOMAP 31 32config 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 40config 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 48config 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 55config 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 63config 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 73config 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 81config 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 92config 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 99config AUDIT_GENERIC 100 bool 101 depends on AUDIT && !AUDIT_ARCH 102 default y 103 104# 105# compression support is select'ed if needed 106# 107config ZLIB_INFLATE 108 tristate 109 110config ZLIB_DEFLATE 111 tristate 112 113config LZO_COMPRESS 114 tristate 115 116config LZO_DECOMPRESS 117 tristate 118 119source "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# 125config DECOMPRESS_GZIP 126 select ZLIB_INFLATE 127 tristate 128 129config DECOMPRESS_BZIP2 130 tristate 131 132config DECOMPRESS_LZMA 133 tristate 134 135config DECOMPRESS_XZ 136 select XZ_DEC 137 tristate 138 139config DECOMPRESS_LZO 140 select LZO_DECOMPRESS 141 tristate 142 143# 144# Generic allocator support is selected if needed 145# 146config GENERIC_ALLOCATOR 147 boolean 148 149# 150# reed solomon support is select'ed if needed 151# 152config REED_SOLOMON 153 tristate 154 155config REED_SOLOMON_ENC8 156 boolean 157 158config REED_SOLOMON_DEC8 159 boolean 160 161config REED_SOLOMON_ENC16 162 boolean 163 164config REED_SOLOMON_DEC16 165 boolean 166 167# 168# BCH support is selected if needed 169# 170config BCH 171 tristate 172 173config 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 189config 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 199config 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# 209config TEXTSEARCH 210 boolean 211 212config TEXTSEARCH_KMP 213 tristate 214 215config TEXTSEARCH_BM 216 tristate 217 218config TEXTSEARCH_FSM 219 tristate 220 221config BTREE 222 boolean 223 224config HAS_IOMEM 225 boolean 226 depends on !NO_IOMEM 227 default y 228 229config HAS_IOPORT 230 boolean 231 depends on HAS_IOMEM && !NO_IOPORT 232 default y 233 234config HAS_DMA 235 boolean 236 depends on !NO_DMA 237 default y 238 239config CHECK_SIGNATURE 240 bool 241 242config 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 249config DISABLE_OBSOLETE_CPUMASK_FUNCTIONS 250 bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS 251 depends on EXPERIMENTAL && BROKEN 252 253config CPU_RMAP 254 bool 255 depends on SMP 256 257config DQL 258 bool 259 260# 261# Netlink attribute parsing support is select'ed if needed 262# 263config NLATTR 264 bool 265 266# 267# Generic 64-bit atomic support is selected if needed 268# 269config GENERIC_ATOMIC64 270 bool 271 272config LRU_CACHE 273 tristate 274 275config 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 285config CLZ_TAB 286 bool 287 288config 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 294config 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 302config 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 310config 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 319endmenu 320