1 # SPDX-License-Identifier: GPL-2.0-only <<
2 # 1 #
3 # Library configuration 2 # Library configuration
4 # 3 #
5 4
6 config BINARY_PRINTF 5 config BINARY_PRINTF
7 def_bool n 6 def_bool n
8 7
9 menu "Library routines" 8 menu "Library routines"
10 9
11 config RAID6_PQ 10 config RAID6_PQ
12 tristate 11 tristate
13 12
14 config RAID6_PQ_BENCHMARK <<
15 bool "Automatically choose fastest RAI <<
16 depends on RAID6_PQ <<
17 default y <<
18 help <<
19 Benchmark all available RAID6 PQ fun <<
20 fastest one. <<
21 <<
22 config LINEAR_RANGES <<
23 tristate <<
24 <<
25 config PACKING <<
26 bool "Generic bitfield packing and unp <<
27 select BITREVERSE <<
28 default n <<
29 help <<
30 This option provides the packing() h <<
31 converting bitfields between a CPU-u <<
32 memory representation that can have <<
33 - Is little endian (bytes are reve <<
34 - The least-significant 32-bit wor <<
35 group) <<
36 - The most significant bit of a by <<
37 register description is numerica <<
38 Drivers may use these helpers to mat <<
39 in the data sheets of the peripheral <<
40 <<
41 When in doubt, say N. <<
42 <<
43 config BITREVERSE 13 config BITREVERSE
44 tristate 14 tristate
45 15
46 config HAVE_ARCH_BITREVERSE !! 16 config RATIONAL
47 bool !! 17 boolean
48 default n <<
49 help <<
50 This option enables the use of hardw <<
51 architectures which support such ope <<
52 <<
53 config ARCH_HAS_STRNCPY_FROM_USER <<
54 bool <<
55 <<
56 config ARCH_HAS_STRNLEN_USER <<
57 bool <<
58 18
59 config GENERIC_STRNCPY_FROM_USER 19 config GENERIC_STRNCPY_FROM_USER
60 def_bool !ARCH_HAS_STRNCPY_FROM_USER <<
61 <<
62 config GENERIC_STRNLEN_USER <<
63 def_bool !ARCH_HAS_STRNLEN_USER <<
64 <<
65 config GENERIC_NET_UTILS <<
66 bool 20 bool
67 21
68 source "lib/math/Kconfig" !! 22 config GENERIC_STRNLEN_USER
69 <<
70 config NO_GENERIC_PCI_IOPORT_MAP <<
71 bool 23 bool
72 24
73 config GENERIC_IOMAP !! 25 config GENERIC_FIND_FIRST_BIT
74 bool 26 bool
75 select GENERIC_PCI_IOMAP <<
76 27
77 config STMP_DEVICE !! 28 config NO_GENERIC_PCI_IOPORT_MAP
78 bool <<
79 <<
80 config ARCH_USE_CMPXCHG_LOCKREF <<
81 bool 29 bool
82 30
83 config ARCH_HAS_FAST_MULTIPLIER !! 31 config GENERIC_PCI_IOMAP
84 bool 32 bool
85 33
86 config ARCH_USE_SYM_ANNOTATIONS !! 34 config GENERIC_IOMAP
87 bool 35 bool
>> 36 select GENERIC_PCI_IOMAP
88 37
89 config INDIRECT_PIO !! 38 config GENERIC_IO
90 bool "Access I/O in non-MMIO mode" !! 39 boolean
91 depends on ARM64 !! 40 default n
92 depends on HAS_IOPORT <<
93 help <<
94 On some platforms where no separate <<
95 hosts which can not be accessed in M <<
96 mechanism, the host-local I/O resour <<
97 logic PIO space shared with MMIO hos <<
98 system can access the I/O devices wi <<
99 I/O accessors. <<
100 <<
101 This way has relatively little I/O p <<
102 sure your devices really need this c <<
103 <<
104 When in doubt, say N. <<
105 <<
106 config INDIRECT_IOMEM <<
107 bool <<
108 help <<
109 This is selected by other options/ar <<
110 emulated iomem accessors. <<
111 41
112 config INDIRECT_IOMEM_FALLBACK !! 42 config STMP_DEVICE
113 bool 43 bool
114 depends on INDIRECT_IOMEM <<
115 help <<
116 If INDIRECT_IOMEM is selected, this <<
117 mmio accesses when the IO memory add <<
118 emulated region. <<
119 44
120 config TRACE_MMIO_ACCESS !! 45 config PERCPU_RWSEM
121 bool "Register read/write tracing" !! 46 boolean
122 depends on TRACING && ARCH_HAVE_TRACE_ <<
123 help <<
124 Create tracepoints for MMIO read/wri <<
125 can be used for logging all MMIO rea <<
126 <<
127 source "lib/crypto/Kconfig" <<
128 47
129 config CRC_CCITT 48 config CRC_CCITT
130 tristate "CRC-CCITT functions" 49 tristate "CRC-CCITT functions"
131 help 50 help
132 This option is provided for the case 51 This option is provided for the case where no in-kernel-tree
133 modules require CRC-CCITT functions, 52 modules require CRC-CCITT functions, but a module built outside
134 the kernel tree does. Such modules t 53 the kernel tree does. Such modules that use library CRC-CCITT
135 functions require M here. 54 functions require M here.
136 55
137 config CRC16 56 config CRC16
138 tristate "CRC16 functions" 57 tristate "CRC16 functions"
139 help 58 help
140 This option is provided for the case 59 This option is provided for the case where no in-kernel-tree
141 modules require CRC16 functions, but 60 modules require CRC16 functions, but a module built outside
142 the kernel tree does. Such modules t 61 the kernel tree does. Such modules that use library CRC16
143 functions require M here. 62 functions require M here.
144 63
145 config CRC_T10DIF 64 config CRC_T10DIF
146 tristate "CRC calculation for the T10 65 tristate "CRC calculation for the T10 Data Integrity Field"
147 select CRYPTO <<
148 select CRYPTO_CRCT10DIF <<
149 help 66 help
150 This option is only needed if a modu 67 This option is only needed if a module that's not in the
151 kernel tree needs to calculate CRC c 68 kernel tree needs to calculate CRC checks for use with the
152 SCSI data integrity subsystem. 69 SCSI data integrity subsystem.
153 70
154 config CRC64_ROCKSOFT <<
155 tristate "CRC calculation for the Rock <<
156 select CRC64 <<
157 select CRYPTO <<
158 select CRYPTO_CRC64_ROCKSOFT <<
159 help <<
160 This option provides a CRC64 API to <<
161 This is used with the block layer's <<
162 <<
163 config CRC_ITU_T 71 config CRC_ITU_T
164 tristate "CRC ITU-T V.41 functions" 72 tristate "CRC ITU-T V.41 functions"
165 help 73 help
166 This option is provided for the case 74 This option is provided for the case where no in-kernel-tree
167 modules require CRC ITU-T V.41 funct 75 modules require CRC ITU-T V.41 functions, but a module built outside
168 the kernel tree does. Such modules t 76 the kernel tree does. Such modules that use library CRC ITU-T V.41
169 functions require M here. 77 functions require M here.
170 78
171 config CRC32 79 config CRC32
172 tristate "CRC32/CRC32c functions" 80 tristate "CRC32/CRC32c functions"
173 default y 81 default y
174 select BITREVERSE 82 select BITREVERSE
175 help 83 help
176 This option is provided for the case 84 This option is provided for the case where no in-kernel-tree
177 modules require CRC32/CRC32c functio 85 modules require CRC32/CRC32c functions, but a module built outside
178 the kernel tree does. Such modules t 86 the kernel tree does. Such modules that use library CRC32/CRC32c
179 functions require M here. 87 functions require M here.
180 88
181 config CRC32_SELFTEST 89 config CRC32_SELFTEST
182 tristate "CRC32 perform self test on i !! 90 bool "CRC32 perform self test on init"
>> 91 default n
183 depends on CRC32 92 depends on CRC32
184 help 93 help
185 This option enables the CRC32 librar 94 This option enables the CRC32 library functions to perform a
186 self test on initialization. The sel 95 self test on initialization. The self test computes crc32_le
187 and crc32_be over byte strings with 96 and crc32_be over byte strings with random alignment and length
188 and computes the total elapsed time 97 and computes the total elapsed time and number of bytes processed.
189 98
190 choice 99 choice
191 prompt "CRC32 implementation" 100 prompt "CRC32 implementation"
192 depends on CRC32 101 depends on CRC32
193 default CRC32_SLICEBY8 102 default CRC32_SLICEBY8
194 help 103 help
195 This option allows a kernel builder 104 This option allows a kernel builder to override the default choice
196 of CRC32 algorithm. Choose the defa 105 of CRC32 algorithm. Choose the default ("slice by 8") unless you
197 know that you need one of the others 106 know that you need one of the others.
198 107
199 config CRC32_SLICEBY8 108 config CRC32_SLICEBY8
200 bool "Slice by 8 bytes" 109 bool "Slice by 8 bytes"
201 help 110 help
202 Calculate checksum 8 bytes at a time 111 Calculate checksum 8 bytes at a time with a clever slicing algorithm.
203 This is the fastest algorithm, but c 112 This is the fastest algorithm, but comes with a 8KiB lookup table.
204 Most modern processors have enough c 113 Most modern processors have enough cache to hold this table without
205 thrashing the cache. 114 thrashing the cache.
206 115
207 This is the default implementation c 116 This is the default implementation choice. Choose this one unless
208 you have a good reason not to. 117 you have a good reason not to.
209 118
210 config CRC32_SLICEBY4 119 config CRC32_SLICEBY4
211 bool "Slice by 4 bytes" 120 bool "Slice by 4 bytes"
212 help 121 help
213 Calculate checksum 4 bytes at a time 122 Calculate checksum 4 bytes at a time with a clever slicing algorithm.
214 This is a bit slower than slice by 8 123 This is a bit slower than slice by 8, but has a smaller 4KiB lookup
215 table. 124 table.
216 125
217 Only choose this option if you know 126 Only choose this option if you know what you are doing.
218 127
219 config CRC32_SARWATE 128 config CRC32_SARWATE
220 bool "Sarwate's Algorithm (one byte at 129 bool "Sarwate's Algorithm (one byte at a time)"
221 help 130 help
222 Calculate checksum a byte at a time 131 Calculate checksum a byte at a time using Sarwate's algorithm. This
223 is not particularly fast, but has a 132 is not particularly fast, but has a small 256 byte lookup table.
224 133
225 Only choose this option if you know 134 Only choose this option if you know what you are doing.
226 135
227 config CRC32_BIT 136 config CRC32_BIT
228 bool "Classic Algorithm (one bit at a 137 bool "Classic Algorithm (one bit at a time)"
229 help 138 help
230 Calculate checksum one bit at a time 139 Calculate checksum one bit at a time. This is VERY slow, but has
231 no lookup table. This is provided a 140 no lookup table. This is provided as a debugging option.
232 141
233 Only choose this option if you are d 142 Only choose this option if you are debugging crc32.
234 143
235 endchoice 144 endchoice
236 145
237 config CRC64 <<
238 tristate "CRC64 functions" <<
239 help <<
240 This option is provided for the case <<
241 modules require CRC64 functions, but <<
242 the kernel tree does. Such modules t <<
243 functions require M here. <<
244 <<
245 config CRC4 <<
246 tristate "CRC4 functions" <<
247 help <<
248 This option is provided for the case <<
249 modules require CRC4 functions, but <<
250 the kernel tree does. Such modules t <<
251 functions require M here. <<
252 <<
253 config CRC7 146 config CRC7
254 tristate "CRC7 functions" 147 tristate "CRC7 functions"
255 help 148 help
256 This option is provided for the case 149 This option is provided for the case where no in-kernel-tree
257 modules require CRC7 functions, but 150 modules require CRC7 functions, but a module built outside
258 the kernel tree does. Such modules t 151 the kernel tree does. Such modules that use library CRC7
259 functions require M here. 152 functions require M here.
260 153
261 config LIBCRC32C 154 config LIBCRC32C
262 tristate "CRC32c (Castagnoli, et al) C 155 tristate "CRC32c (Castagnoli, et al) Cyclic Redundancy-Check"
263 select CRYPTO 156 select CRYPTO
264 select CRYPTO_CRC32C 157 select CRYPTO_CRC32C
265 help 158 help
266 This option is provided for the case 159 This option is provided for the case where no in-kernel-tree
267 modules require CRC32c functions, bu 160 modules require CRC32c functions, but a module built outside the
268 kernel tree does. Such modules that 161 kernel tree does. Such modules that use library CRC32c functions
269 require M here. See Castagnoli93. 162 require M here. See Castagnoli93.
270 Module will be libcrc32c. 163 Module will be libcrc32c.
271 164
272 config CRC8 165 config CRC8
273 tristate "CRC8 function" 166 tristate "CRC8 function"
274 help 167 help
275 This option provides CRC8 function. 168 This option provides CRC8 function. Drivers may select this
276 when they need to do cyclic redundan 169 when they need to do cyclic redundancy check according CRC8
277 algorithm. Module will be called crc 170 algorithm. Module will be called crc8.
278 171
279 config XXHASH <<
280 tristate <<
281 <<
282 config AUDIT_GENERIC 172 config AUDIT_GENERIC
283 bool 173 bool
284 depends on AUDIT && !AUDIT_ARCH 174 depends on AUDIT && !AUDIT_ARCH
285 default y 175 default y
286 176
287 config AUDIT_ARCH_COMPAT_GENERIC <<
288 bool <<
289 default n <<
290 <<
291 config AUDIT_COMPAT_GENERIC <<
292 bool <<
293 depends on AUDIT_GENERIC && AUDIT_ARCH <<
294 default y <<
295 <<
296 config RANDOM32_SELFTEST <<
297 bool "PRNG perform self test on init" <<
298 help <<
299 This option enables the 32 bit PRNG <<
300 self test on initialization. <<
301 <<
302 # 177 #
303 # compression support is select'ed if needed 178 # compression support is select'ed if needed
304 # 179 #
305 config 842_COMPRESS <<
306 select CRC32 <<
307 tristate <<
308 <<
309 config 842_DECOMPRESS <<
310 select CRC32 <<
311 tristate <<
312 <<
313 config ZLIB_INFLATE 180 config ZLIB_INFLATE
314 tristate 181 tristate
315 182
316 config ZLIB_DEFLATE 183 config ZLIB_DEFLATE
317 tristate 184 tristate
318 select BITREVERSE <<
319 <<
320 config ZLIB_DFLTCC <<
321 def_bool y <<
322 depends on S390 <<
323 prompt "Enable s390x DEFLATE CONVERSIO <<
324 help <<
325 Enable s390x hardware support for zli <<
326 185
327 config LZO_COMPRESS 186 config LZO_COMPRESS
328 tristate 187 tristate
329 188
330 config LZO_DECOMPRESS 189 config LZO_DECOMPRESS
331 tristate 190 tristate
332 191
333 config LZ4_COMPRESS <<
334 tristate <<
335 <<
336 config LZ4HC_COMPRESS <<
337 tristate <<
338 <<
339 config LZ4_DECOMPRESS <<
340 tristate <<
341 <<
342 config ZSTD_COMMON <<
343 select XXHASH <<
344 tristate <<
345 <<
346 config ZSTD_COMPRESS <<
347 select ZSTD_COMMON <<
348 tristate <<
349 <<
350 config ZSTD_DECOMPRESS <<
351 select ZSTD_COMMON <<
352 tristate <<
353 <<
354 source "lib/xz/Kconfig" 192 source "lib/xz/Kconfig"
355 193
356 # 194 #
357 # These all provide a common interface (hence 195 # These all provide a common interface (hence the apparent duplication with
358 # ZLIB_INFLATE; DECOMPRESS_GZIP is just a wrap 196 # ZLIB_INFLATE; DECOMPRESS_GZIP is just a wrapper.)
359 # 197 #
360 config DECOMPRESS_GZIP 198 config DECOMPRESS_GZIP
361 select ZLIB_INFLATE 199 select ZLIB_INFLATE
362 tristate 200 tristate
363 201
364 config DECOMPRESS_BZIP2 202 config DECOMPRESS_BZIP2
365 tristate 203 tristate
366 204
367 config DECOMPRESS_LZMA 205 config DECOMPRESS_LZMA
368 tristate 206 tristate
369 207
370 config DECOMPRESS_XZ 208 config DECOMPRESS_XZ
371 select XZ_DEC 209 select XZ_DEC
372 tristate 210 tristate
373 211
374 config DECOMPRESS_LZO 212 config DECOMPRESS_LZO
375 select LZO_DECOMPRESS 213 select LZO_DECOMPRESS
376 tristate 214 tristate
377 215
378 config DECOMPRESS_LZ4 <<
379 select LZ4_DECOMPRESS <<
380 tristate <<
381 <<
382 config DECOMPRESS_ZSTD <<
383 select ZSTD_DECOMPRESS <<
384 tristate <<
385 <<
386 # 216 #
387 # Generic allocator support is selected if nee 217 # Generic allocator support is selected if needed
388 # 218 #
389 config GENERIC_ALLOCATOR 219 config GENERIC_ALLOCATOR
390 bool !! 220 boolean
391 221
392 # 222 #
393 # reed solomon support is select'ed if needed 223 # reed solomon support is select'ed if needed
394 # 224 #
395 config REED_SOLOMON 225 config REED_SOLOMON
396 tristate 226 tristate
397 227
398 config REED_SOLOMON_ENC8 228 config REED_SOLOMON_ENC8
399 bool !! 229 boolean
400 230
401 config REED_SOLOMON_DEC8 231 config REED_SOLOMON_DEC8
402 bool !! 232 boolean
403 233
404 config REED_SOLOMON_ENC16 234 config REED_SOLOMON_ENC16
405 bool !! 235 boolean
406 236
407 config REED_SOLOMON_DEC16 237 config REED_SOLOMON_DEC16
408 bool !! 238 boolean
409 239
410 # 240 #
411 # BCH support is selected if needed 241 # BCH support is selected if needed
412 # 242 #
413 config BCH 243 config BCH
414 tristate 244 tristate
415 select BITREVERSE <<
416 245
417 config BCH_CONST_PARAMS 246 config BCH_CONST_PARAMS
418 bool !! 247 boolean
419 help 248 help
420 Drivers may select this option to fo 249 Drivers may select this option to force specific constant
421 values for parameters 'm' (Galois fi 250 values for parameters 'm' (Galois field order) and 't'
422 (error correction capability). Those 251 (error correction capability). Those specific values must
423 be set by declaring default values f 252 be set by declaring default values for symbols BCH_CONST_M
424 and BCH_CONST_T. 253 and BCH_CONST_T.
425 Doing so will enable extra compiler 254 Doing so will enable extra compiler optimizations,
426 improving encoding and decoding perf 255 improving encoding and decoding performance up to 2x for
427 usual (m,t) values (typically such t 256 usual (m,t) values (typically such that m*t < 200).
428 When this option is selected, the BC 257 When this option is selected, the BCH library supports
429 only a single (m,t) configuration. T 258 only a single (m,t) configuration. This is mainly useful
430 for NAND flash board drivers requiri 259 for NAND flash board drivers requiring known, fixed BCH
431 parameters. 260 parameters.
432 261
433 config BCH_CONST_M 262 config BCH_CONST_M
434 int 263 int
435 range 5 15 264 range 5 15
436 help 265 help
437 Constant value for Galois field orde 266 Constant value for Galois field order 'm'. If 'k' is the
438 number of data bits to protect, 'm' 267 number of data bits to protect, 'm' should be chosen such
439 that (k + m*t) <= 2**m - 1. 268 that (k + m*t) <= 2**m - 1.
440 Drivers should declare a default val 269 Drivers should declare a default value for this symbol if
441 they select option BCH_CONST_PARAMS. 270 they select option BCH_CONST_PARAMS.
442 271
443 config BCH_CONST_T 272 config BCH_CONST_T
444 int 273 int
445 help 274 help
446 Constant value for error correction 275 Constant value for error correction capability in bits 't'.
447 Drivers should declare a default val 276 Drivers should declare a default value for this symbol if
448 they select option BCH_CONST_PARAMS. 277 they select option BCH_CONST_PARAMS.
449 278
450 # 279 #
451 # Textsearch support is select'ed if needed 280 # Textsearch support is select'ed if needed
452 # 281 #
453 config TEXTSEARCH 282 config TEXTSEARCH
454 bool !! 283 boolean
455 284
456 config TEXTSEARCH_KMP 285 config TEXTSEARCH_KMP
457 tristate 286 tristate
458 287
459 config TEXTSEARCH_BM 288 config TEXTSEARCH_BM
460 tristate 289 tristate
461 290
462 config TEXTSEARCH_FSM 291 config TEXTSEARCH_FSM
463 tristate 292 tristate
464 293
465 config BTREE 294 config BTREE
466 bool !! 295 boolean
467 <<
468 config INTERVAL_TREE <<
469 bool <<
470 help <<
471 Simple, embeddable, interval-tree. C <<
472 overlapping range in log(n) time and <<
473 overlapping nodes. The algorithm is <<
474 augmented rbtree. <<
475 <<
476 See: <<
477 <<
478 Documentation/core-api/rbtree. <<
479 <<
480 for more information. <<
481 <<
482 config INTERVAL_TREE_SPAN_ITER <<
483 bool <<
484 depends on INTERVAL_TREE <<
485 <<
486 config XARRAY_MULTI <<
487 bool <<
488 help <<
489 Support entries which occupy multipl <<
490 XArray. <<
491 <<
492 config ASSOCIATIVE_ARRAY <<
493 bool <<
494 help <<
495 Generic associative array. Can be s <<
496 it is being modified. It is also re <<
497 modify. The algorithms are non-recu <<
498 capacious. <<
499 <<
500 See: <<
501 <<
502 Documentation/core-api/assoc_a <<
503 <<
504 for more information. <<
505 <<
506 config CLOSURES <<
507 bool <<
508 296
509 config HAS_IOMEM 297 config HAS_IOMEM
510 bool !! 298 boolean
511 depends on !NO_IOMEM 299 depends on !NO_IOMEM
>> 300 select GENERIC_IO
512 default y 301 default y
513 302
514 config HAS_IOPORT 303 config HAS_IOPORT
515 bool !! 304 boolean
516 !! 305 depends on HAS_IOMEM && !NO_IOPORT
517 config HAS_IOPORT_MAP <<
518 bool <<
519 depends on HAS_IOMEM && !NO_IOPORT_MAP <<
520 default y 306 default y
521 307
522 source "kernel/dma/Kconfig" !! 308 config HAS_DMA
523 !! 309 boolean
524 config SGL_ALLOC !! 310 depends on !NO_DMA
525 bool !! 311 default y
526 default n <<
527 <<
528 config IOMMU_HELPER <<
529 bool <<
530 312
531 config CHECK_SIGNATURE 313 config CHECK_SIGNATURE
532 bool 314 bool
533 315
534 config CPUMASK_OFFSTACK 316 config CPUMASK_OFFSTACK
535 bool "Force CPU masks off stack" if DE 317 bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS
536 help 318 help
537 Use dynamic allocation for cpumask_v 319 Use dynamic allocation for cpumask_var_t, instead of putting
538 them on the stack. This is a bit mo 320 them on the stack. This is a bit more expensive, but avoids
539 stack overflow. 321 stack overflow.
540 322
541 config FORCE_NR_CPUS !! 323 config DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
542 def_bool !SMP !! 324 bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS
>> 325 depends on BROKEN
543 326
544 config CPU_RMAP 327 config CPU_RMAP
545 bool 328 bool
546 depends on SMP 329 depends on SMP
547 330
548 config DQL 331 config DQL
549 bool 332 bool
550 333
551 config GLOB <<
552 bool <<
553 # This actually supports modular compila <<
554 # is ridiculous for the amount of code i <<
555 # driver asks for it, we'll just link it <<
556 # when required. Since we're ignoring o <<
557 # no need bother prompting for a manual <<
558 # prompt "glob_match() function" <<
559 help <<
560 This option provides a glob_match fu <<
561 simple text pattern matching. It or <<
562 to blacklist particular drive models <<
563 may need similar functionality. <<
564 <<
565 All drivers in the Linux kernel tree <<
566 should automatically select this opt <<
567 are compiling an out-of tree driver <<
568 depends on this. <<
569 <<
570 config GLOB_SELFTEST <<
571 tristate "glob self-test on init" <<
572 depends on GLOB <<
573 help <<
574 This option enables a simple self-te <<
575 function on startup. It is primaril <<
576 working on the code to ensure they h <<
577 regressions. <<
578 <<
579 It only adds a little bit of code an <<
580 module load) by a small amount, so y <<
581 it, but you probably don't need it. <<
582 <<
583 # 334 #
584 # Netlink attribute parsing support is select' 335 # Netlink attribute parsing support is select'ed if needed
585 # 336 #
586 config NLATTR 337 config NLATTR
587 bool 338 bool
588 339
589 # 340 #
590 # Generic 64-bit atomic support is selected if 341 # Generic 64-bit atomic support is selected if needed
591 # 342 #
592 config GENERIC_ATOMIC64 343 config GENERIC_ATOMIC64
593 bool 344 bool
594 345
>> 346 config ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
>> 347 def_bool y if GENERIC_ATOMIC64
>> 348
595 config LRU_CACHE 349 config LRU_CACHE
596 tristate 350 tristate
597 351
>> 352 config AVERAGE
>> 353 bool "Averaging functions"
>> 354 help
>> 355 This option is provided for the case where no in-kernel-tree
>> 356 modules require averaging functions, but a module built outside
>> 357 the kernel tree does. Such modules that use library averaging
>> 358 functions require Y here.
>> 359
>> 360 If unsure, say N.
>> 361
598 config CLZ_TAB 362 config CLZ_TAB
599 bool 363 bool
600 364
601 config IRQ_POLL !! 365 config CORDIC
602 bool "IRQ polling library" !! 366 tristate "CORDIC algorithm"
>> 367 help
>> 368 This option provides an implementation of the CORDIC algorithm;
>> 369 calculations are in fixed point. Module will be called cordic.
>> 370
>> 371 config DDR
>> 372 bool "JEDEC DDR data"
603 help 373 help
604 Helper library to poll interrupt mit !! 374 Data from JEDEC specs for DDR SDRAM memories,
>> 375 particularly the AC timing parameters and addressing
>> 376 information. This data is useful for drivers handling
>> 377 DDR SDRAM controllers.
605 378
606 config MPILIB 379 config MPILIB
607 tristate 380 tristate
608 select CLZ_TAB 381 select CLZ_TAB
609 help 382 help
610 Multiprecision maths library from Gn 383 Multiprecision maths library from GnuPG.
611 It is used to implement RSA digital 384 It is used to implement RSA digital signature verification,
612 which is used by IMA/EVM digital sig 385 which is used by IMA/EVM digital signature extension.
613 386
614 config SIGNATURE 387 config SIGNATURE
615 tristate 388 tristate
616 depends on KEYS !! 389 depends on KEYS && CRYPTO
617 select CRYPTO <<
618 select CRYPTO_SHA1 390 select CRYPTO_SHA1
619 select MPILIB 391 select MPILIB
620 help 392 help
621 Digital signature verification. Curr 393 Digital signature verification. Currently only RSA is supported.
622 Implementation is done using GnuPG M 394 Implementation is done using GnuPG MPI library
623 395
624 config DIMLIB <<
625 tristate <<
626 depends on NET <<
627 help <<
628 Dynamic Interrupt Moderation library <<
629 Implements an algorithm for dynamica <<
630 according to run time performance. <<
631 <<
632 # 396 #
633 # libfdt files, only selected if needed. 397 # libfdt files, only selected if needed.
634 # 398 #
635 config LIBFDT 399 config LIBFDT
636 bool 400 bool
637 401
638 config OID_REGISTRY 402 config OID_REGISTRY
639 tristate 403 tristate
640 help 404 help
641 Enable fast lookup object identifier 405 Enable fast lookup object identifier registry.
642 406
643 config UCS2_STRING 407 config UCS2_STRING
644 tristate !! 408 tristate
645 <<
646 # <<
647 # generic vdso <<
648 # <<
649 source "lib/vdso/Kconfig" <<
650 <<
651 source "lib/fonts/Kconfig" <<
652 <<
653 config SG_SPLIT <<
654 def_bool n <<
655 help <<
656 Provides a helper to split scatterlis <<
657 a scatterlist. This should be selecte <<
658 whishes to split a scatterlist amongs <<
659 <<
660 config SG_POOL <<
661 def_bool n <<
662 help <<
663 Provides a helper to allocate chained <<
664 selected by a driver or an API which <<
665 scatterlist. <<
666 <<
667 # <<
668 # sg chaining option <<
669 # <<
670 <<
671 config ARCH_NO_SG_CHAIN <<
672 def_bool n <<
673 <<
674 config ARCH_HAS_PMEM_API <<
675 bool <<
676 <<
677 config MEMREGION <<
678 bool <<
679 <<
680 config ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION <<
681 bool <<
682 <<
683 config ARCH_HAS_MEMREMAP_COMPAT_ALIGN <<
684 bool <<
685 <<
686 # use memcpy to implement user copies for nomm <<
687 config UACCESS_MEMCPY <<
688 bool <<
689 <<
690 config ARCH_HAS_UACCESS_FLUSHCACHE <<
691 bool <<
692 <<
693 # arch has a concept of a recoverable synchron <<
694 # memory-read error like x86 machine-check or <<
695 # implements copy_mc_to_{user,kernel} to abort <<
696 # 'bytes-transferred' if that exception fires <<
697 # buffer. <<
698 config ARCH_HAS_COPY_MC <<
699 bool <<
700 <<
701 # Temporary. Goes away when all archs are clea <<
702 config ARCH_STACKWALK <<
703 bool <<
704 <<
705 config STACKDEPOT <<
706 bool <<
707 select STACKTRACE <<
708 help <<
709 Stack depot: stack trace storage tha <<
710 <<
711 config STACKDEPOT_ALWAYS_INIT <<
712 bool <<
713 select STACKDEPOT <<
714 help <<
715 Always initialize stack depot during <<
716 <<
717 config STACKDEPOT_MAX_FRAMES <<
718 int "Maximum number of frames in trace <<
719 range 1 256 <<
720 default 64 <<
721 depends on STACKDEPOT <<
722 <<
723 config REF_TRACKER <<
724 bool <<
725 depends on STACKTRACE_SUPPORT <<
726 select STACKDEPOT <<
727 <<
728 config SBITMAP <<
729 bool <<
730 <<
731 config PARMAN <<
732 tristate "parman" if COMPILE_TEST <<
733 <<
734 config OBJAGG <<
735 tristate "objagg" if COMPILE_TEST <<
736 <<
737 config LWQ_TEST <<
738 bool "Boot-time test for lwq queuing" <<
739 help <<
740 Run boot-time test of light-weight q <<
741 409
742 endmenu 410 endmenu
743 <<
744 config GENERIC_IOREMAP <<
745 bool <<
746 <<
747 config GENERIC_LIB_ASHLDI3 <<
748 bool <<
749 <<
750 config GENERIC_LIB_ASHRDI3 <<
751 bool <<
752 <<
753 config GENERIC_LIB_LSHRDI3 <<
754 bool <<
755 <<
756 config GENERIC_LIB_MULDI3 <<
757 bool <<
758 <<
759 config GENERIC_LIB_CMPDI2 <<
760 bool <<
761 <<
762 config GENERIC_LIB_UCMPDI2 <<
763 bool <<
764 <<
765 config GENERIC_LIB_DEVMEM_IS_ALLOWED <<
766 bool <<
767 <<
768 config PLDMFW <<
769 bool <<
770 default n <<
771 <<
772 config ASN1_ENCODER <<
773 tristate <<
774 <<
775 config POLYNOMIAL <<
776 tristate <<
777 <<
778 config FIRMWARE_TABLE <<
779 bool <<
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