11da177e4SLinus Torvalds# 21da177e4SLinus Torvalds# Library configuration 31da177e4SLinus Torvalds# 41da177e4SLinus Torvalds 54370aa4aSLai Jiangshanconfig BINARY_PRINTF 64370aa4aSLai Jiangshan def_bool n 74370aa4aSLai Jiangshan 81da177e4SLinus Torvaldsmenu "Library routines" 91da177e4SLinus Torvalds 10f5e70d0fSDavid Woodhouseconfig RAID6_PQ 11f5e70d0fSDavid Woodhouse tristate 12f5e70d0fSDavid Woodhouse 13a5cfc1ecSAkinobu Mitaconfig BITREVERSE 14a5cfc1ecSAkinobu Mita tristate 15a5cfc1ecSAkinobu Mita 168759ef32SOskar Schirmerconfig RATIONAL 178759ef32SOskar Schirmer boolean 188759ef32SOskar Schirmer 1919870defSAlexander van Heukelumconfig GENERIC_FIND_FIRST_BIT 209ba16087SJan Beulich bool 2119870defSAlexander van Heukelum 22*b923650bSMichael S. Tsirkinconfig NO_GENERIC_PCI_IOPORT_MAP 23*b923650bSMichael S. Tsirkin bool 24*b923650bSMichael S. Tsirkin 2566eab4dfSMichael S. Tsirkinconfig GENERIC_PCI_IOMAP 2666eab4dfSMichael S. Tsirkin bool 2766eab4dfSMichael S. Tsirkin 284673ca8eSMichael S. Tsirkinconfig GENERIC_IOMAP 294673ca8eSMichael S. Tsirkin bool 3066eab4dfSMichael S. Tsirkin select GENERIC_PCI_IOMAP 314673ca8eSMichael S. Tsirkin 321da177e4SLinus Torvaldsconfig CRC_CCITT 331da177e4SLinus Torvalds tristate "CRC-CCITT functions" 341da177e4SLinus Torvalds help 351da177e4SLinus Torvalds This option is provided for the case where no in-kernel-tree 361da177e4SLinus Torvalds modules require CRC-CCITT functions, but a module built outside 371da177e4SLinus Torvalds the kernel tree does. Such modules that use library CRC-CCITT 381da177e4SLinus Torvalds functions require M here. 391da177e4SLinus Torvalds 407657ec1fSEvgeniy Polyakovconfig CRC16 417657ec1fSEvgeniy Polyakov tristate "CRC16 functions" 427657ec1fSEvgeniy Polyakov help 437657ec1fSEvgeniy Polyakov This option is provided for the case where no in-kernel-tree 447657ec1fSEvgeniy Polyakov modules require CRC16 functions, but a module built outside 457657ec1fSEvgeniy Polyakov the kernel tree does. Such modules that use library CRC16 467657ec1fSEvgeniy Polyakov functions require M here. 477657ec1fSEvgeniy Polyakov 48f11f594eSMartin K. Petersenconfig CRC_T10DIF 49f11f594eSMartin K. Petersen tristate "CRC calculation for the T10 Data Integrity Field" 50f11f594eSMartin K. Petersen help 51f11f594eSMartin K. Petersen This option is only needed if a module that's not in the 52f11f594eSMartin K. Petersen kernel tree needs to calculate CRC checks for use with the 53f11f594eSMartin K. Petersen SCSI data integrity subsystem. 54f11f594eSMartin K. Petersen 553e7cbae7SIvo van Doornconfig CRC_ITU_T 563e7cbae7SIvo van Doorn tristate "CRC ITU-T V.41 functions" 573e7cbae7SIvo van Doorn help 583e7cbae7SIvo van Doorn This option is provided for the case where no in-kernel-tree 593e7cbae7SIvo van Doorn modules require CRC ITU-T V.41 functions, but a module built outside 603e7cbae7SIvo van Doorn the kernel tree does. Such modules that use library CRC ITU-T V.41 613e7cbae7SIvo van Doorn functions require M here. 623e7cbae7SIvo van Doorn 631da177e4SLinus Torvaldsconfig CRC32 641da177e4SLinus Torvalds tristate "CRC32 functions" 651da177e4SLinus Torvalds default y 66906d66dfSAkinobu Mita select BITREVERSE 671da177e4SLinus Torvalds help 681da177e4SLinus Torvalds This option is provided for the case where no in-kernel-tree 691da177e4SLinus Torvalds modules require CRC32 functions, but a module built outside the 701da177e4SLinus Torvalds kernel tree does. Such modules that use library CRC32 functions 711da177e4SLinus Torvalds require M here. 721da177e4SLinus Torvalds 73ad241528SJan Nikitenkoconfig CRC7 74ad241528SJan Nikitenko tristate "CRC7 functions" 75ad241528SJan Nikitenko help 76ad241528SJan Nikitenko This option is provided for the case where no in-kernel-tree 77ad241528SJan Nikitenko modules require CRC7 functions, but a module built outside 78ad241528SJan Nikitenko the kernel tree does. Such modules that use library CRC7 79ad241528SJan Nikitenko functions require M here. 80ad241528SJan Nikitenko 811da177e4SLinus Torvaldsconfig LIBCRC32C 821da177e4SLinus Torvalds tristate "CRC32c (Castagnoli, et al) Cyclic Redundancy-Check" 8393027354SHerbert Xu select CRYPTO 8469c35efcSHerbert Xu select CRYPTO_CRC32C 851da177e4SLinus Torvalds help 861da177e4SLinus Torvalds This option is provided for the case where no in-kernel-tree 871da177e4SLinus Torvalds modules require CRC32c functions, but a module built outside the 881da177e4SLinus Torvalds kernel tree does. Such modules that use library CRC32c functions 891da177e4SLinus Torvalds require M here. See Castagnoli93. 901da177e4SLinus Torvalds Module will be libcrc32c. 911da177e4SLinus Torvalds 927150962dSArend van Sprielconfig CRC8 937150962dSArend van Spriel tristate "CRC8 function" 947150962dSArend van Spriel help 957150962dSArend van Spriel This option provides CRC8 function. Drivers may select this 967150962dSArend van Spriel when they need to do cyclic redundancy check according CRC8 977150962dSArend van Spriel algorithm. Module will be called crc8. 987150962dSArend van Spriel 99e65e1fc2SAl Viroconfig AUDIT_GENERIC 100e65e1fc2SAl Viro bool 101e65e1fc2SAl Viro depends on AUDIT && !AUDIT_ARCH 102e65e1fc2SAl Viro default y 103e65e1fc2SAl Viro 1041da177e4SLinus Torvalds# 1051da177e4SLinus Torvalds# compression support is select'ed if needed 1061da177e4SLinus Torvalds# 1071da177e4SLinus Torvaldsconfig ZLIB_INFLATE 1081da177e4SLinus Torvalds tristate 1091da177e4SLinus Torvalds 1101da177e4SLinus Torvaldsconfig ZLIB_DEFLATE 1111da177e4SLinus Torvalds tristate 1121da177e4SLinus Torvalds 11364c70b1cSRichard Purdieconfig LZO_COMPRESS 11464c70b1cSRichard Purdie tristate 11564c70b1cSRichard Purdie 11664c70b1cSRichard Purdieconfig LZO_DECOMPRESS 11764c70b1cSRichard Purdie tristate 11864c70b1cSRichard Purdie 11924fa0402SLasse Collinsource "lib/xz/Kconfig" 12024fa0402SLasse Collin 1211da177e4SLinus Torvalds# 122c8531ab3SH. Peter Anvin# These all provide a common interface (hence the apparent duplication with 123c8531ab3SH. Peter Anvin# ZLIB_INFLATE; DECOMPRESS_GZIP is just a wrapper.) 124c8531ab3SH. Peter Anvin# 125c8531ab3SH. Peter Anvinconfig DECOMPRESS_GZIP 1267856a16eSH. Peter Anvin select ZLIB_INFLATE 127c8531ab3SH. Peter Anvin tristate 128c8531ab3SH. Peter Anvin 129c8531ab3SH. Peter Anvinconfig DECOMPRESS_BZIP2 130c8531ab3SH. Peter Anvin tristate 131c8531ab3SH. Peter Anvin 132c8531ab3SH. Peter Anvinconfig DECOMPRESS_LZMA 133c8531ab3SH. Peter Anvin tristate 134c8531ab3SH. Peter Anvin 1353ebe1243SLasse Collinconfig DECOMPRESS_XZ 1363ebe1243SLasse Collin select XZ_DEC 1373ebe1243SLasse Collin tristate 1383ebe1243SLasse Collin 139cacb246fSAlbin Tonnerreconfig DECOMPRESS_LZO 140cacb246fSAlbin Tonnerre select LZO_DECOMPRESS 141cacb246fSAlbin Tonnerre tristate 142cacb246fSAlbin Tonnerre 143c8531ab3SH. Peter Anvin# 144f14f75b8SJes Sorensen# Generic allocator support is selected if needed 145f14f75b8SJes Sorensen# 146f14f75b8SJes Sorensenconfig GENERIC_ALLOCATOR 147f14f75b8SJes Sorensen boolean 148f14f75b8SJes Sorensen 149f14f75b8SJes Sorensen# 1501da177e4SLinus Torvalds# reed solomon support is select'ed if needed 1511da177e4SLinus Torvalds# 1521da177e4SLinus Torvaldsconfig REED_SOLOMON 1531da177e4SLinus Torvalds tristate 1541da177e4SLinus Torvalds 1551da177e4SLinus Torvaldsconfig REED_SOLOMON_ENC8 1561da177e4SLinus Torvalds boolean 1571da177e4SLinus Torvalds 1581da177e4SLinus Torvaldsconfig REED_SOLOMON_DEC8 1591da177e4SLinus Torvalds boolean 1601da177e4SLinus Torvalds 1611da177e4SLinus Torvaldsconfig REED_SOLOMON_ENC16 1621da177e4SLinus Torvalds boolean 1631da177e4SLinus Torvalds 1641da177e4SLinus Torvaldsconfig REED_SOLOMON_DEC16 1651da177e4SLinus Torvalds boolean 1661da177e4SLinus Torvalds 167f7704347SDavid S. Miller# 168437aa565SIvan Djelic# BCH support is selected if needed 169437aa565SIvan Djelic# 170437aa565SIvan Djelicconfig BCH 171437aa565SIvan Djelic tristate 172437aa565SIvan Djelic 173437aa565SIvan Djelicconfig BCH_CONST_PARAMS 174437aa565SIvan Djelic boolean 175437aa565SIvan Djelic help 176437aa565SIvan Djelic Drivers may select this option to force specific constant 177437aa565SIvan Djelic values for parameters 'm' (Galois field order) and 't' 178437aa565SIvan Djelic (error correction capability). Those specific values must 179437aa565SIvan Djelic be set by declaring default values for symbols BCH_CONST_M 180437aa565SIvan Djelic and BCH_CONST_T. 181437aa565SIvan Djelic Doing so will enable extra compiler optimizations, 182437aa565SIvan Djelic improving encoding and decoding performance up to 2x for 183437aa565SIvan Djelic usual (m,t) values (typically such that m*t < 200). 184437aa565SIvan Djelic When this option is selected, the BCH library supports 185437aa565SIvan Djelic only a single (m,t) configuration. This is mainly useful 186437aa565SIvan Djelic for NAND flash board drivers requiring known, fixed BCH 187437aa565SIvan Djelic parameters. 188437aa565SIvan Djelic 189437aa565SIvan Djelicconfig BCH_CONST_M 190437aa565SIvan Djelic int 191437aa565SIvan Djelic range 5 15 192437aa565SIvan Djelic help 193437aa565SIvan Djelic Constant value for Galois field order 'm'. If 'k' is the 194437aa565SIvan Djelic number of data bits to protect, 'm' should be chosen such 195437aa565SIvan Djelic that (k + m*t) <= 2**m - 1. 196437aa565SIvan Djelic Drivers should declare a default value for this symbol if 197437aa565SIvan Djelic they select option BCH_CONST_PARAMS. 198437aa565SIvan Djelic 199437aa565SIvan Djelicconfig BCH_CONST_T 200437aa565SIvan Djelic int 201437aa565SIvan Djelic help 202437aa565SIvan Djelic Constant value for error correction capability in bits 't'. 203437aa565SIvan Djelic Drivers should declare a default value for this symbol if 204437aa565SIvan Djelic they select option BCH_CONST_PARAMS. 205437aa565SIvan Djelic 206437aa565SIvan Djelic# 207f7704347SDavid S. Miller# Textsearch support is select'ed if needed 208f7704347SDavid S. Miller# 2092de4ff7bSThomas Grafconfig TEXTSEARCH 210f7704347SDavid S. Miller boolean 2111da177e4SLinus Torvalds 212df3fb93aSThomas Grafconfig TEXTSEARCH_KMP 213f7704347SDavid S. Miller tristate 214df3fb93aSThomas Graf 2158082e4edSPablo Neira Ayusoconfig TEXTSEARCH_BM 21629cb9f9cSDavid S. Miller tristate 2178082e4edSPablo Neira Ayuso 2186408f79cSThomas Grafconfig TEXTSEARCH_FSM 219f7704347SDavid S. Miller tristate 2206408f79cSThomas Graf 2215db53f3eSJoern Engelconfig BTREE 2225db53f3eSJoern Engel boolean 2235db53f3eSJoern Engel 2245ea81769SAl Viroconfig HAS_IOMEM 225ee36c2bfSAl Viro boolean 2265ea81769SAl Viro depends on !NO_IOMEM 2275ea81769SAl Viro default y 2285ea81769SAl Viro 2295ea81769SAl Viroconfig HAS_IOPORT 2305ea81769SAl Viro boolean 2315ea81769SAl Viro depends on HAS_IOMEM && !NO_IOPORT 232ee36c2bfSAl Viro default y 233ee36c2bfSAl Viro 234411f0f3eSHeiko Carstensconfig HAS_DMA 235411f0f3eSHeiko Carstens boolean 236411f0f3eSHeiko Carstens depends on !NO_DMA 237411f0f3eSHeiko Carstens default y 238411f0f3eSHeiko Carstens 239928923c7SGeert Uytterhoevenconfig CHECK_SIGNATURE 240928923c7SGeert Uytterhoeven bool 241928923c7SGeert Uytterhoeven 242aab46da0SRusty Russellconfig CPUMASK_OFFSTACK 243aab46da0SRusty Russell bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS 244aab46da0SRusty Russell help 245aab46da0SRusty Russell Use dynamic allocation for cpumask_var_t, instead of putting 246aab46da0SRusty Russell them on the stack. This is a bit more expensive, but avoids 247aab46da0SRusty Russell stack overflow. 248aab46da0SRusty Russell 2498c384cdeSRusty Russellconfig DISABLE_OBSOLETE_CPUMASK_FUNCTIONS 2508c384cdeSRusty Russell bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS 2518c384cdeSRusty Russell depends on EXPERIMENTAL && BROKEN 2528c384cdeSRusty Russell 253c39649c3SBen Hutchingsconfig CPU_RMAP 254c39649c3SBen Hutchings bool 255c39649c3SBen Hutchings depends on SMP 256c39649c3SBen Hutchings 25775957ba3STom Herbertconfig DQL 25875957ba3STom Herbert bool 25975957ba3STom Herbert 260e9cc8bddSGeert Uytterhoeven# 261e9cc8bddSGeert Uytterhoeven# Netlink attribute parsing support is select'ed if needed 262e9cc8bddSGeert Uytterhoeven# 263e9cc8bddSGeert Uytterhoevenconfig NLATTR 264e9cc8bddSGeert Uytterhoeven bool 265e9cc8bddSGeert Uytterhoeven 26609d4e0edSPaul Mackerras# 26709d4e0edSPaul Mackerras# Generic 64-bit atomic support is selected if needed 26809d4e0edSPaul Mackerras# 26909d4e0edSPaul Mackerrasconfig GENERIC_ATOMIC64 27009d4e0edSPaul Mackerras bool 27109d4e0edSPaul Mackerras 272b411b363SPhilipp Reisnerconfig LRU_CACHE 273b411b363SPhilipp Reisner tristate 274b411b363SPhilipp Reisner 275c5485a7eSBruno Randolfconfig AVERAGE 276a7a9a24dSMichael Buesch bool "Averaging functions" 277a7a9a24dSMichael Buesch help 278a7a9a24dSMichael Buesch This option is provided for the case where no in-kernel-tree 279a7a9a24dSMichael Buesch modules require averaging functions, but a module built outside 280a7a9a24dSMichael Buesch the kernel tree does. Such modules that use library averaging 281a7a9a24dSMichael Buesch functions require Y here. 282a7a9a24dSMichael Buesch 283a7a9a24dSMichael Buesch If unsure, say N. 284c5485a7eSBruno Randolf 28510f8113eSArend van Sprielconfig CORDIC 286d89ce936SMichael Witten tristate "CORDIC algorithm" 28710f8113eSArend van Spriel help 288435a95c5SMichael Witten This option provides an implementation of the CORDIC algorithm; 289435a95c5SMichael Witten calculations are in fixed point. Module will be called cordic. 29010f8113eSArend van Spriel 291d9c46b18SDmitry Kasatkinconfig MPILIB 2922e5f094bSDmitry Kasatkin tristate 293d9c46b18SDmitry Kasatkin help 294d9c46b18SDmitry Kasatkin Multiprecision maths library from GnuPG. 295d9c46b18SDmitry Kasatkin It is used to implement RSA digital signature verification, 296d9c46b18SDmitry Kasatkin which is used by IMA/EVM digital signature extension. 297d9c46b18SDmitry Kasatkin 2987e8dec91SDmitry Kasatkinconfig MPILIB_EXTRA 2992e5f094bSDmitry Kasatkin bool 3007e8dec91SDmitry Kasatkin depends on MPILIB 3017e8dec91SDmitry Kasatkin help 30268adcad5SDmitry Kasatkin Additional sources of multiprecision maths library from GnuPG. 30368adcad5SDmitry Kasatkin This code is unnecessary for RSA digital signature verification, 30468adcad5SDmitry Kasatkin but can be compiled if needed. 3057e8dec91SDmitry Kasatkin 3065e8898e9SDmitry Kasatkinconfig SIGNATURE 3072e5f094bSDmitry Kasatkin tristate 308be440ec7SDmitry Kasatkin depends on KEYS && CRYPTO 309be440ec7SDmitry Kasatkin select CRYPTO_SHA1 310051dbb91SDmitry Kasatkin select MPILIB 311051dbb91SDmitry Kasatkin help 312051dbb91SDmitry Kasatkin Digital signature verification. Currently only RSA is supported. 313051dbb91SDmitry Kasatkin Implementation is done using GnuPG MPI library 314051dbb91SDmitry Kasatkin 3152de4ff7bSThomas Grafendmenu 316