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 GENERIC_PCI_IOMAP 23 bool 24 25config GENERIC_IOMAP 26 bool 27 select GENERIC_PCI_IOMAP 28 29config 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 37config 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 45config 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 52config 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 60config 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 70config 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 78config 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 89config 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 96config AUDIT_GENERIC 97 bool 98 depends on AUDIT && !AUDIT_ARCH 99 default y 100 101# 102# compression support is select'ed if needed 103# 104config ZLIB_INFLATE 105 tristate 106 107config ZLIB_DEFLATE 108 tristate 109 110config LZO_COMPRESS 111 tristate 112 113config LZO_DECOMPRESS 114 tristate 115 116source "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# 122config DECOMPRESS_GZIP 123 select ZLIB_INFLATE 124 tristate 125 126config DECOMPRESS_BZIP2 127 tristate 128 129config DECOMPRESS_LZMA 130 tristate 131 132config DECOMPRESS_XZ 133 select XZ_DEC 134 tristate 135 136config DECOMPRESS_LZO 137 select LZO_DECOMPRESS 138 tristate 139 140# 141# Generic allocator support is selected if needed 142# 143config GENERIC_ALLOCATOR 144 boolean 145 146# 147# reed solomon support is select'ed if needed 148# 149config REED_SOLOMON 150 tristate 151 152config REED_SOLOMON_ENC8 153 boolean 154 155config REED_SOLOMON_DEC8 156 boolean 157 158config REED_SOLOMON_ENC16 159 boolean 160 161config REED_SOLOMON_DEC16 162 boolean 163 164# 165# BCH support is selected if needed 166# 167config BCH 168 tristate 169 170config 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 186config 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 196config 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# 206config TEXTSEARCH 207 boolean 208 209config TEXTSEARCH_KMP 210 tristate 211 212config TEXTSEARCH_BM 213 tristate 214 215config TEXTSEARCH_FSM 216 tristate 217 218config BTREE 219 boolean 220 221config HAS_IOMEM 222 boolean 223 depends on !NO_IOMEM 224 default y 225 226config HAS_IOPORT 227 boolean 228 depends on HAS_IOMEM && !NO_IOPORT 229 default y 230 231config HAS_DMA 232 boolean 233 depends on !NO_DMA 234 default y 235 236config CHECK_SIGNATURE 237 bool 238 239config 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 246config DISABLE_OBSOLETE_CPUMASK_FUNCTIONS 247 bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS 248 depends on EXPERIMENTAL && BROKEN 249 250config CPU_RMAP 251 bool 252 depends on SMP 253 254config DQL 255 bool 256 257# 258# Netlink attribute parsing support is select'ed if needed 259# 260config NLATTR 261 bool 262 263# 264# Generic 64-bit atomic support is selected if needed 265# 266config GENERIC_ATOMIC64 267 bool 268 269config LRU_CACHE 270 tristate 271 272config 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 282config 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 288config MPILIB 289 tristate "Multiprecision maths library" 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 295config MPILIB_EXTRA 296 bool "Multiprecision maths library - additional sources" 297 depends on MPILIB 298 help 299 Multiprecision maths library from GnuPG. 300 It is used to implement RSA digital signature verification, 301 which is used by IMA/EVM digital signature extension. 302 This code in unnecessary for RSA digital signature verification, 303 and can be compiled if needed. 304 305config SIGNATURE 306 tristate "In-kernel signature checker" 307 depends on KEYS 308 select MPILIB 309 help 310 Digital signature verification. Currently only RSA is supported. 311 Implementation is done using GnuPG MPI library 312 313endmenu 314