Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | # |
| 2 | # Library configuration |
| 3 | # |
| 4 | |
Lai Jiangshan | 4370aa4 | 2009-03-06 17:21:46 +0100 | [diff] [blame] | 5 | config BINARY_PRINTF |
| 6 | def_bool n |
| 7 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | menu "Library routines" |
| 9 | |
David Woodhouse | f5e70d0 | 2009-07-13 11:35:12 +0100 | [diff] [blame] | 10 | config RAID6_PQ |
| 11 | tristate |
| 12 | |
Akinobu Mita | a5cfc1e | 2006-12-08 02:36:25 -0800 | [diff] [blame] | 13 | config BITREVERSE |
| 14 | tristate |
| 15 | |
Oskar Schirmer | 8759ef3 | 2009-06-11 14:51:15 +0100 | [diff] [blame] | 16 | config RATIONAL |
| 17 | boolean |
| 18 | |
Alexander van Heukelum | 19870de | 2008-04-25 13:12:53 +0200 | [diff] [blame] | 19 | config GENERIC_FIND_FIRST_BIT |
Jan Beulich | 9ba1608 | 2008-10-15 22:01:38 -0700 | [diff] [blame] | 20 | bool |
Alexander van Heukelum | 19870de | 2008-04-25 13:12:53 +0200 | [diff] [blame] | 21 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | config CRC_CCITT |
| 23 | tristate "CRC-CCITT functions" |
| 24 | help |
| 25 | This option is provided for the case where no in-kernel-tree |
| 26 | modules require CRC-CCITT functions, but a module built outside |
| 27 | the kernel tree does. Such modules that use library CRC-CCITT |
| 28 | functions require M here. |
| 29 | |
Evgeniy Polyakov | 7657ec1 | 2005-08-17 15:17:26 +0400 | [diff] [blame] | 30 | config CRC16 |
| 31 | tristate "CRC16 functions" |
| 32 | help |
| 33 | This option is provided for the case where no in-kernel-tree |
| 34 | modules require CRC16 functions, but a module built outside |
| 35 | the kernel tree does. Such modules that use library CRC16 |
| 36 | functions require M here. |
| 37 | |
Martin K. Petersen | f11f594 | 2008-06-25 11:22:42 -0400 | [diff] [blame] | 38 | config CRC_T10DIF |
| 39 | tristate "CRC calculation for the T10 Data Integrity Field" |
| 40 | help |
| 41 | This option is only needed if a module that's not in the |
| 42 | kernel tree needs to calculate CRC checks for use with the |
| 43 | SCSI data integrity subsystem. |
| 44 | |
Ivo van Doorn | 3e7cbae | 2006-06-12 16:17:04 +0200 | [diff] [blame] | 45 | config CRC_ITU_T |
| 46 | tristate "CRC ITU-T V.41 functions" |
| 47 | help |
| 48 | This option is provided for the case where no in-kernel-tree |
| 49 | modules require CRC ITU-T V.41 functions, but a module built outside |
| 50 | the kernel tree does. Such modules that use library CRC ITU-T V.41 |
| 51 | functions require M here. |
| 52 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | config CRC32 |
| 54 | tristate "CRC32 functions" |
| 55 | default y |
Akinobu Mita | 906d66d | 2006-12-08 02:36:25 -0800 | [diff] [blame] | 56 | select BITREVERSE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | help |
| 58 | This option is provided for the case where no in-kernel-tree |
| 59 | modules require CRC32 functions, but a module built outside the |
| 60 | kernel tree does. Such modules that use library CRC32 functions |
| 61 | require M here. |
| 62 | |
Jan Nikitenko | ad24152 | 2007-07-17 04:04:03 -0700 | [diff] [blame] | 63 | config CRC7 |
| 64 | tristate "CRC7 functions" |
| 65 | help |
| 66 | This option is provided for the case where no in-kernel-tree |
| 67 | modules require CRC7 functions, but a module built outside |
| 68 | the kernel tree does. Such modules that use library CRC7 |
| 69 | functions require M here. |
| 70 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | config LIBCRC32C |
| 72 | tristate "CRC32c (Castagnoli, et al) Cyclic Redundancy-Check" |
Herbert Xu | 9302735 | 2008-11-13 22:05:13 +0800 | [diff] [blame] | 73 | select CRYPTO |
Herbert Xu | 69c35ef | 2008-11-07 15:11:47 +0800 | [diff] [blame] | 74 | select CRYPTO_CRC32C |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | help |
| 76 | This option is provided for the case where no in-kernel-tree |
| 77 | modules require CRC32c functions, but a module built outside the |
| 78 | kernel tree does. Such modules that use library CRC32c functions |
| 79 | require M here. See Castagnoli93. |
| 80 | Module will be libcrc32c. |
| 81 | |
Arend van Spriel | 7150962 | 2011-05-31 11:22:15 +0200 | [diff] [blame] | 82 | config CRC8 |
| 83 | tristate "CRC8 function" |
| 84 | help |
| 85 | This option provides CRC8 function. Drivers may select this |
| 86 | when they need to do cyclic redundancy check according CRC8 |
| 87 | algorithm. Module will be called crc8. |
| 88 | |
Al Viro | e65e1fc | 2006-09-12 03:04:40 -0400 | [diff] [blame] | 89 | config AUDIT_GENERIC |
| 90 | bool |
| 91 | depends on AUDIT && !AUDIT_ARCH |
| 92 | default y |
| 93 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | # |
| 95 | # compression support is select'ed if needed |
| 96 | # |
| 97 | config ZLIB_INFLATE |
| 98 | tristate |
| 99 | |
| 100 | config ZLIB_DEFLATE |
| 101 | tristate |
| 102 | |
Richard Purdie | 64c70b1 | 2007-07-10 17:22:24 -0700 | [diff] [blame] | 103 | config LZO_COMPRESS |
| 104 | tristate |
| 105 | |
| 106 | config LZO_DECOMPRESS |
| 107 | tristate |
| 108 | |
Lasse Collin | 24fa040 | 2011-01-12 17:01:22 -0800 | [diff] [blame] | 109 | source "lib/xz/Kconfig" |
| 110 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | # |
H. Peter Anvin | c8531ab | 2009-01-05 13:48:31 -0800 | [diff] [blame] | 112 | # These all provide a common interface (hence the apparent duplication with |
| 113 | # ZLIB_INFLATE; DECOMPRESS_GZIP is just a wrapper.) |
| 114 | # |
| 115 | config DECOMPRESS_GZIP |
H. Peter Anvin | 7856a16e | 2009-01-07 00:01:43 -0800 | [diff] [blame] | 116 | select ZLIB_INFLATE |
H. Peter Anvin | c8531ab | 2009-01-05 13:48:31 -0800 | [diff] [blame] | 117 | tristate |
| 118 | |
| 119 | config DECOMPRESS_BZIP2 |
| 120 | tristate |
| 121 | |
| 122 | config DECOMPRESS_LZMA |
| 123 | tristate |
| 124 | |
Lasse Collin | 3ebe124 | 2011-01-12 17:01:23 -0800 | [diff] [blame] | 125 | config DECOMPRESS_XZ |
| 126 | select XZ_DEC |
| 127 | tristate |
| 128 | |
Albin Tonnerre | cacb246 | 2010-01-08 14:42:46 -0800 | [diff] [blame] | 129 | config DECOMPRESS_LZO |
| 130 | select LZO_DECOMPRESS |
| 131 | tristate |
| 132 | |
H. Peter Anvin | c8531ab | 2009-01-05 13:48:31 -0800 | [diff] [blame] | 133 | # |
Jes Sorensen | f14f75b | 2005-06-21 17:15:02 -0700 | [diff] [blame] | 134 | # Generic allocator support is selected if needed |
| 135 | # |
| 136 | config GENERIC_ALLOCATOR |
| 137 | boolean |
| 138 | |
| 139 | # |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | # reed solomon support is select'ed if needed |
| 141 | # |
| 142 | config REED_SOLOMON |
| 143 | tristate |
| 144 | |
| 145 | config REED_SOLOMON_ENC8 |
| 146 | boolean |
| 147 | |
| 148 | config REED_SOLOMON_DEC8 |
| 149 | boolean |
| 150 | |
| 151 | config REED_SOLOMON_ENC16 |
| 152 | boolean |
| 153 | |
| 154 | config REED_SOLOMON_DEC16 |
| 155 | boolean |
| 156 | |
David S. Miller | f770434 | 2005-06-24 17:39:03 -0700 | [diff] [blame] | 157 | # |
Ivan Djelic | 437aa56 | 2011-03-11 11:05:32 +0100 | [diff] [blame] | 158 | # BCH support is selected if needed |
| 159 | # |
| 160 | config BCH |
| 161 | tristate |
| 162 | |
| 163 | config BCH_CONST_PARAMS |
| 164 | boolean |
| 165 | help |
| 166 | Drivers may select this option to force specific constant |
| 167 | values for parameters 'm' (Galois field order) and 't' |
| 168 | (error correction capability). Those specific values must |
| 169 | be set by declaring default values for symbols BCH_CONST_M |
| 170 | and BCH_CONST_T. |
| 171 | Doing so will enable extra compiler optimizations, |
| 172 | improving encoding and decoding performance up to 2x for |
| 173 | usual (m,t) values (typically such that m*t < 200). |
| 174 | When this option is selected, the BCH library supports |
| 175 | only a single (m,t) configuration. This is mainly useful |
| 176 | for NAND flash board drivers requiring known, fixed BCH |
| 177 | parameters. |
| 178 | |
| 179 | config BCH_CONST_M |
| 180 | int |
| 181 | range 5 15 |
| 182 | help |
| 183 | Constant value for Galois field order 'm'. If 'k' is the |
| 184 | number of data bits to protect, 'm' should be chosen such |
| 185 | that (k + m*t) <= 2**m - 1. |
| 186 | Drivers should declare a default value for this symbol if |
| 187 | they select option BCH_CONST_PARAMS. |
| 188 | |
| 189 | config BCH_CONST_T |
| 190 | int |
| 191 | help |
| 192 | Constant value for error correction capability in bits 't'. |
| 193 | Drivers should declare a default value for this symbol if |
| 194 | they select option BCH_CONST_PARAMS. |
| 195 | |
| 196 | # |
David S. Miller | f770434 | 2005-06-24 17:39:03 -0700 | [diff] [blame] | 197 | # Textsearch support is select'ed if needed |
| 198 | # |
Thomas Graf | 2de4ff7 | 2005-06-23 20:49:30 -0700 | [diff] [blame] | 199 | config TEXTSEARCH |
David S. Miller | f770434 | 2005-06-24 17:39:03 -0700 | [diff] [blame] | 200 | boolean |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | |
Thomas Graf | df3fb93 | 2005-06-23 20:58:37 -0700 | [diff] [blame] | 202 | config TEXTSEARCH_KMP |
David S. Miller | f770434 | 2005-06-24 17:39:03 -0700 | [diff] [blame] | 203 | tristate |
Thomas Graf | df3fb93 | 2005-06-23 20:58:37 -0700 | [diff] [blame] | 204 | |
Pablo Neira Ayuso | 8082e4e | 2005-08-25 16:12:22 -0700 | [diff] [blame] | 205 | config TEXTSEARCH_BM |
David S. Miller | 29cb9f9 | 2005-08-25 16:23:11 -0700 | [diff] [blame] | 206 | tristate |
Pablo Neira Ayuso | 8082e4e | 2005-08-25 16:12:22 -0700 | [diff] [blame] | 207 | |
Thomas Graf | 6408f79 | 2005-06-23 20:59:16 -0700 | [diff] [blame] | 208 | config TEXTSEARCH_FSM |
David S. Miller | f770434 | 2005-06-24 17:39:03 -0700 | [diff] [blame] | 209 | tristate |
Thomas Graf | 6408f79 | 2005-06-23 20:59:16 -0700 | [diff] [blame] | 210 | |
Joern Engel | 5db53f3 | 2009-11-20 20:13:39 +0100 | [diff] [blame] | 211 | config BTREE |
| 212 | boolean |
| 213 | |
Al Viro | 5ea8176 | 2007-02-11 15:41:31 +0000 | [diff] [blame] | 214 | config HAS_IOMEM |
Al Viro | ee36c2b | 2006-12-13 00:35:00 -0800 | [diff] [blame] | 215 | boolean |
Al Viro | 5ea8176 | 2007-02-11 15:41:31 +0000 | [diff] [blame] | 216 | depends on !NO_IOMEM |
| 217 | default y |
| 218 | |
| 219 | config HAS_IOPORT |
| 220 | boolean |
| 221 | depends on HAS_IOMEM && !NO_IOPORT |
Al Viro | ee36c2b | 2006-12-13 00:35:00 -0800 | [diff] [blame] | 222 | default y |
| 223 | |
Heiko Carstens | 411f0f3 | 2007-05-06 14:49:09 -0700 | [diff] [blame] | 224 | config HAS_DMA |
| 225 | boolean |
| 226 | depends on !NO_DMA |
| 227 | default y |
| 228 | |
Geert Uytterhoeven | 928923c | 2007-08-22 14:01:36 -0700 | [diff] [blame] | 229 | config CHECK_SIGNATURE |
| 230 | bool |
| 231 | |
Rusty Russell | aab46da | 2008-12-13 21:20:27 +1030 | [diff] [blame] | 232 | config CPUMASK_OFFSTACK |
| 233 | bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS |
| 234 | help |
| 235 | Use dynamic allocation for cpumask_var_t, instead of putting |
| 236 | them on the stack. This is a bit more expensive, but avoids |
| 237 | stack overflow. |
| 238 | |
Rusty Russell | 8c384cd | 2009-01-01 10:12:30 +1030 | [diff] [blame] | 239 | config DISABLE_OBSOLETE_CPUMASK_FUNCTIONS |
| 240 | bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS |
| 241 | depends on EXPERIMENTAL && BROKEN |
| 242 | |
Ben Hutchings | c39649c | 2011-01-19 11:03:25 +0000 | [diff] [blame] | 243 | config CPU_RMAP |
| 244 | bool |
| 245 | depends on SMP |
| 246 | |
Geert Uytterhoeven | e9cc8bd | 2009-03-04 14:53:30 +0800 | [diff] [blame] | 247 | # |
| 248 | # Netlink attribute parsing support is select'ed if needed |
| 249 | # |
| 250 | config NLATTR |
| 251 | bool |
| 252 | |
Paul Mackerras | 09d4e0e | 2009-06-12 21:10:05 +0000 | [diff] [blame] | 253 | # |
| 254 | # Generic 64-bit atomic support is selected if needed |
| 255 | # |
| 256 | config GENERIC_ATOMIC64 |
| 257 | bool |
| 258 | |
Philipp Reisner | b411b36 | 2009-09-25 16:07:19 -0700 | [diff] [blame] | 259 | config LRU_CACHE |
| 260 | tristate |
| 261 | |
Bruno Randolf | c5485a7 | 2010-11-16 10:58:37 +0900 | [diff] [blame] | 262 | config AVERAGE |
Michael Buesch | a7a9a24 | 2011-03-01 20:03:05 +0100 | [diff] [blame] | 263 | bool "Averaging functions" |
| 264 | help |
| 265 | This option is provided for the case where no in-kernel-tree |
| 266 | modules require averaging functions, but a module built outside |
| 267 | the kernel tree does. Such modules that use library averaging |
| 268 | functions require Y here. |
| 269 | |
| 270 | If unsure, say N. |
Bruno Randolf | c5485a7 | 2010-11-16 10:58:37 +0900 | [diff] [blame] | 271 | |
Arend van Spriel | 10f8113 | 2011-05-31 11:22:16 +0200 | [diff] [blame] | 272 | config CORDIC |
| 273 | tristate "Cordic function" |
| 274 | help |
| 275 | The option provides arithmetic function using cordic algorithm |
| 276 | so its calculations are in fixed point. Modules can select this |
| 277 | when they require this function. Module will be called cordic. |
| 278 | |
Huang Ying | f49f23a | 2011-07-13 13:14:23 +0800 | [diff] [blame] | 279 | config LLIST |
| 280 | bool |
| 281 | |
Thomas Graf | 2de4ff7 | 2005-06-23 20:49:30 -0700 | [diff] [blame] | 282 | endmenu |