blob: 8b6c41edc80a7e3cacf3ebf01c401d03b46b9525 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# Library configuration
3#
4
Lai Jiangshan4370aa42009-03-06 17:21:46 +01005config BINARY_PRINTF
6 def_bool n
7
Linus Torvalds1da177e2005-04-16 15:20:36 -07008menu "Library routines"
9
David Woodhousef5e70d02009-07-13 11:35:12 +010010config RAID6_PQ
11 tristate
12
Akinobu Mitaa5cfc1e2006-12-08 02:36:25 -080013config BITREVERSE
14 tristate
15
Yalin Wang556d2f02014-11-03 03:01:03 +010016config HAVE_ARCH_BITREVERSE
Christoph Jaeger841c0092015-02-16 16:00:20 -080017 bool
Yalin Wang556d2f02014-11-03 03:01:03 +010018 default n
19 depends on BITREVERSE
20 help
Andrew Morton9e522c02015-04-16 12:49:07 -070021 This option enables the use of hardware bit-reversal instructions on
22 architectures which support such operations.
Yalin Wang556d2f02014-11-03 03:01:03 +010023
Oskar Schirmer8759ef32009-06-11 14:51:15 +010024config RATIONAL
Christoph Jaeger6341e622014-12-20 15:41:11 -050025 bool
Oskar Schirmer8759ef32009-06-11 14:51:15 +010026
David S. Miller29225852012-05-24 13:12:28 -070027config GENERIC_STRNCPY_FROM_USER
28 bool
29
Linus Torvaldsa08c5352012-05-26 11:06:38 -070030config GENERIC_STRNLEN_USER
31 bool
32
Andy Shevchenko4cd57732013-06-04 19:46:26 +030033config GENERIC_NET_UTILS
34 bool
35
Alexander van Heukelum19870de2008-04-25 13:12:53 +020036config GENERIC_FIND_FIRST_BIT
Jan Beulich9ba16082008-10-15 22:01:38 -070037 bool
Alexander van Heukelum19870de2008-04-25 13:12:53 +020038
Michael S. Tsirkinb9236502012-01-30 00:20:48 +020039config NO_GENERIC_PCI_IOPORT_MAP
40 bool
41
Michael S. Tsirkin66eab4d2011-11-24 20:45:20 +020042config GENERIC_PCI_IOMAP
43 bool
44
Michael S. Tsirkin4673ca82011-11-24 14:54:28 +020045config GENERIC_IOMAP
46 bool
Michael S. Tsirkin66eab4d2011-11-24 20:45:20 +020047 select GENERIC_PCI_IOMAP
Michael S. Tsirkin4673ca82011-11-24 14:54:28 +020048
Richard Weinberger087fafd2012-02-07 01:22:46 +010049config GENERIC_IO
Christoph Jaeger6341e622014-12-20 15:41:11 -050050 bool
Richard Weinberger087fafd2012-02-07 01:22:46 +010051 default n
52
Wolfram Sang4ccf4be2011-08-31 20:35:40 +020053config STMP_DEVICE
54 bool
55
Linus Torvaldsbc08b442013-09-02 12:12:15 -070056config ARCH_USE_CMPXCHG_LOCKREF
57 bool
58
Linus Torvalds72d93102014-09-13 11:14:53 -070059config ARCH_HAS_FAST_MULTIPLIER
60 bool
61
Linus Torvalds1da177e2005-04-16 15:20:36 -070062config CRC_CCITT
63 tristate "CRC-CCITT functions"
64 help
65 This option is provided for the case where no in-kernel-tree
66 modules require CRC-CCITT functions, but a module built outside
67 the kernel tree does. Such modules that use library CRC-CCITT
68 functions require M here.
69
Evgeniy Polyakov7657ec12005-08-17 15:17:26 +040070config CRC16
71 tristate "CRC16 functions"
72 help
73 This option is provided for the case where no in-kernel-tree
74 modules require CRC16 functions, but a module built outside
75 the kernel tree does. Such modules that use library CRC16
76 functions require M here.
77
Martin K. Petersenf11f5942008-06-25 11:22:42 -040078config CRC_T10DIF
79 tristate "CRC calculation for the T10 Data Integrity Field"
Herbert Xu684115212013-09-07 12:56:26 +100080 select CRYPTO
81 select CRYPTO_CRCT10DIF
Martin K. Petersenf11f5942008-06-25 11:22:42 -040082 help
83 This option is only needed if a module that's not in the
84 kernel tree needs to calculate CRC checks for use with the
85 SCSI data integrity subsystem.
86
Ivo van Doorn3e7cbae2006-06-12 16:17:04 +020087config CRC_ITU_T
88 tristate "CRC ITU-T V.41 functions"
89 help
90 This option is provided for the case where no in-kernel-tree
91 modules require CRC ITU-T V.41 functions, but a module built outside
92 the kernel tree does. Such modules that use library CRC ITU-T V.41
93 functions require M here.
94
Linus Torvalds1da177e2005-04-16 15:20:36 -070095config CRC32
Darrick J. Wong46c58012012-03-23 15:02:25 -070096 tristate "CRC32/CRC32c functions"
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 default y
Akinobu Mita906d66d2006-12-08 02:36:25 -080098 select BITREVERSE
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 help
100 This option is provided for the case where no in-kernel-tree
Darrick J. Wong46c58012012-03-23 15:02:25 -0700101 modules require CRC32/CRC32c functions, but a module built outside
102 the kernel tree does. Such modules that use library CRC32/CRC32c
103 functions require M here.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104
Bob Pearson3863ef32012-03-23 15:02:22 -0700105config CRC32_SELFTEST
106 bool "CRC32 perform self test on init"
107 default n
108 depends on CRC32
109 help
110 This option enables the CRC32 library functions to perform a
111 self test on initialization. The self test computes crc32_le
112 and crc32_be over byte strings with random alignment and length
113 and computes the total elapsed time and number of bytes processed.
114
Darrick J. Wong5cde7652012-03-23 15:02:26 -0700115choice
116 prompt "CRC32 implementation"
117 depends on CRC32
118 default CRC32_SLICEBY8
Darrick J. Wong82edb4b2012-03-28 14:42:56 -0700119 help
120 This option allows a kernel builder to override the default choice
121 of CRC32 algorithm. Choose the default ("slice by 8") unless you
122 know that you need one of the others.
Darrick J. Wong5cde7652012-03-23 15:02:26 -0700123
124config CRC32_SLICEBY8
125 bool "Slice by 8 bytes"
126 help
127 Calculate checksum 8 bytes at a time with a clever slicing algorithm.
128 This is the fastest algorithm, but comes with a 8KiB lookup table.
129 Most modern processors have enough cache to hold this table without
130 thrashing the cache.
131
132 This is the default implementation choice. Choose this one unless
133 you have a good reason not to.
134
135config CRC32_SLICEBY4
136 bool "Slice by 4 bytes"
137 help
138 Calculate checksum 4 bytes at a time with a clever slicing algorithm.
139 This is a bit slower than slice by 8, but has a smaller 4KiB lookup
140 table.
141
142 Only choose this option if you know what you are doing.
143
144config CRC32_SARWATE
145 bool "Sarwate's Algorithm (one byte at a time)"
146 help
147 Calculate checksum a byte at a time using Sarwate's algorithm. This
148 is not particularly fast, but has a small 256 byte lookup table.
149
150 Only choose this option if you know what you are doing.
151
152config CRC32_BIT
153 bool "Classic Algorithm (one bit at a time)"
154 help
155 Calculate checksum one bit at a time. This is VERY slow, but has
156 no lookup table. This is provided as a debugging option.
157
158 Only choose this option if you are debugging crc32.
159
160endchoice
161
Jan Nikitenkoad241522007-07-17 04:04:03 -0700162config CRC7
163 tristate "CRC7 functions"
164 help
165 This option is provided for the case where no in-kernel-tree
166 modules require CRC7 functions, but a module built outside
167 the kernel tree does. Such modules that use library CRC7
168 functions require M here.
169
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170config LIBCRC32C
171 tristate "CRC32c (Castagnoli, et al) Cyclic Redundancy-Check"
Herbert Xu93027352008-11-13 22:05:13 +0800172 select CRYPTO
Herbert Xu69c35ef2008-11-07 15:11:47 +0800173 select CRYPTO_CRC32C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 help
175 This option is provided for the case where no in-kernel-tree
176 modules require CRC32c functions, but a module built outside the
177 kernel tree does. Such modules that use library CRC32c functions
178 require M here. See Castagnoli93.
179 Module will be libcrc32c.
180
Arend van Spriel71509622011-05-31 11:22:15 +0200181config CRC8
182 tristate "CRC8 function"
183 help
184 This option provides CRC8 function. Drivers may select this
185 when they need to do cyclic redundancy check according CRC8
186 algorithm. Module will be called crc8.
187
Al Viroe65e1fc2006-09-12 03:04:40 -0400188config AUDIT_GENERIC
189 bool
190 depends on AUDIT && !AUDIT_ARCH
191 default y
192
AKASHI Takahiro4b588412014-03-15 14:48:00 +0900193config AUDIT_ARCH_COMPAT_GENERIC
194 bool
195 default n
196
197config AUDIT_COMPAT_GENERIC
198 bool
199 depends on AUDIT_GENERIC && AUDIT_ARCH_COMPAT_GENERIC && COMPAT
200 default y
201
Daniel Borkmanna6a9c0f2013-11-11 12:20:37 +0100202config RANDOM32_SELFTEST
203 bool "PRNG perform self test on init"
204 default n
205 help
206 This option enables the 32 bit PRNG library functions to perform a
207 self test on initialization.
208
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209#
210# compression support is select'ed if needed
211#
Dan Streetman2da572c2015-05-07 13:49:14 -0400212config 842_COMPRESS
Arnd Bergmann5b571672016-01-13 23:24:02 +0100213 select CRC32
Dan Streetman2da572c2015-05-07 13:49:14 -0400214 tristate
215
216config 842_DECOMPRESS
Arnd Bergmann5b571672016-01-13 23:24:02 +0100217 select CRC32
Dan Streetman2da572c2015-05-07 13:49:14 -0400218 tristate
219
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220config ZLIB_INFLATE
221 tristate
222
223config ZLIB_DEFLATE
224 tristate
Andrew Morton1fd4e5c2015-10-15 15:28:35 -0700225 select BITREVERSE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226
Richard Purdie64c70b12007-07-10 17:22:24 -0700227config LZO_COMPRESS
228 tristate
229
230config LZO_DECOMPRESS
231 tristate
232
Chanho Minc72ac7a2013-07-08 16:01:49 -0700233config LZ4_COMPRESS
234 tristate
235
236config LZ4HC_COMPRESS
237 tristate
238
Kyungsik Leee76e1fd2013-07-08 16:01:46 -0700239config LZ4_DECOMPRESS
240 tristate
241
Lasse Collin24fa0402011-01-12 17:01:22 -0800242source "lib/xz/Kconfig"
243
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244#
H. Peter Anvinc8531ab2009-01-05 13:48:31 -0800245# These all provide a common interface (hence the apparent duplication with
246# ZLIB_INFLATE; DECOMPRESS_GZIP is just a wrapper.)
247#
248config DECOMPRESS_GZIP
H. Peter Anvin7856a16e2009-01-07 00:01:43 -0800249 select ZLIB_INFLATE
H. Peter Anvinc8531ab2009-01-05 13:48:31 -0800250 tristate
251
252config DECOMPRESS_BZIP2
253 tristate
254
255config DECOMPRESS_LZMA
256 tristate
257
Lasse Collin3ebe1242011-01-12 17:01:23 -0800258config DECOMPRESS_XZ
259 select XZ_DEC
260 tristate
261
Albin Tonnerrecacb2462010-01-08 14:42:46 -0800262config DECOMPRESS_LZO
263 select LZO_DECOMPRESS
264 tristate
265
Kyungsik Leee76e1fd2013-07-08 16:01:46 -0700266config DECOMPRESS_LZ4
267 select LZ4_DECOMPRESS
268 tristate
269
H. Peter Anvinc8531ab2009-01-05 13:48:31 -0800270#
Jes Sorensenf14f75b2005-06-21 17:15:02 -0700271# Generic allocator support is selected if needed
272#
273config GENERIC_ALLOCATOR
Christoph Jaeger6341e622014-12-20 15:41:11 -0500274 bool
Jes Sorensenf14f75b2005-06-21 17:15:02 -0700275
276#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277# reed solomon support is select'ed if needed
278#
279config REED_SOLOMON
280 tristate
281
282config REED_SOLOMON_ENC8
Christoph Jaeger6341e622014-12-20 15:41:11 -0500283 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284
285config REED_SOLOMON_DEC8
Christoph Jaeger6341e622014-12-20 15:41:11 -0500286 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287
288config REED_SOLOMON_ENC16
Christoph Jaeger6341e622014-12-20 15:41:11 -0500289 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290
291config REED_SOLOMON_DEC16
Christoph Jaeger6341e622014-12-20 15:41:11 -0500292 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293
David S. Millerf7704342005-06-24 17:39:03 -0700294#
Ivan Djelic437aa562011-03-11 11:05:32 +0100295# BCH support is selected if needed
296#
297config BCH
298 tristate
299
300config BCH_CONST_PARAMS
Christoph Jaeger6341e622014-12-20 15:41:11 -0500301 bool
Ivan Djelic437aa562011-03-11 11:05:32 +0100302 help
303 Drivers may select this option to force specific constant
304 values for parameters 'm' (Galois field order) and 't'
305 (error correction capability). Those specific values must
306 be set by declaring default values for symbols BCH_CONST_M
307 and BCH_CONST_T.
308 Doing so will enable extra compiler optimizations,
309 improving encoding and decoding performance up to 2x for
310 usual (m,t) values (typically such that m*t < 200).
311 When this option is selected, the BCH library supports
312 only a single (m,t) configuration. This is mainly useful
313 for NAND flash board drivers requiring known, fixed BCH
314 parameters.
315
316config BCH_CONST_M
317 int
318 range 5 15
319 help
320 Constant value for Galois field order 'm'. If 'k' is the
321 number of data bits to protect, 'm' should be chosen such
322 that (k + m*t) <= 2**m - 1.
323 Drivers should declare a default value for this symbol if
324 they select option BCH_CONST_PARAMS.
325
326config BCH_CONST_T
327 int
328 help
329 Constant value for error correction capability in bits 't'.
330 Drivers should declare a default value for this symbol if
331 they select option BCH_CONST_PARAMS.
332
333#
David S. Millerf7704342005-06-24 17:39:03 -0700334# Textsearch support is select'ed if needed
335#
Thomas Graf2de4ff72005-06-23 20:49:30 -0700336config TEXTSEARCH
Christoph Jaeger6341e622014-12-20 15:41:11 -0500337 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338
Thomas Grafdf3fb932005-06-23 20:58:37 -0700339config TEXTSEARCH_KMP
David S. Millerf7704342005-06-24 17:39:03 -0700340 tristate
Thomas Grafdf3fb932005-06-23 20:58:37 -0700341
Pablo Neira Ayuso8082e4e2005-08-25 16:12:22 -0700342config TEXTSEARCH_BM
David S. Miller29cb9f92005-08-25 16:23:11 -0700343 tristate
Pablo Neira Ayuso8082e4e2005-08-25 16:12:22 -0700344
Thomas Graf6408f792005-06-23 20:59:16 -0700345config TEXTSEARCH_FSM
David S. Millerf7704342005-06-24 17:39:03 -0700346 tristate
Thomas Graf6408f792005-06-23 20:59:16 -0700347
Joern Engel5db53f32009-11-20 20:13:39 +0100348config BTREE
Christoph Jaeger6341e622014-12-20 15:41:11 -0500349 bool
Joern Engel5db53f32009-11-20 20:13:39 +0100350
Chris Wilsona88cc102014-03-17 12:21:54 +0000351config INTERVAL_TREE
Christoph Jaeger6341e622014-12-20 15:41:11 -0500352 bool
Chris Wilsona88cc102014-03-17 12:21:54 +0000353 help
354 Simple, embeddable, interval-tree. Can find the start of an
355 overlapping range in log(n) time and then iterate over all
356 overlapping nodes. The algorithm is implemented as an
357 augmented rbtree.
358
359 See:
360
361 Documentation/rbtree.txt
362
363 for more information.
364
Matthew Wilcox57578c22016-05-20 17:01:54 -0700365config RADIX_TREE_MULTIORDER
366 bool
367
David Howells3cb98952013-09-24 10:35:17 +0100368config ASSOCIATIVE_ARRAY
369 bool
370 help
371 Generic associative array. Can be searched and iterated over whilst
372 it is being modified. It is also reasonably quick to search and
373 modify. The algorithms are non-recursive, and the trees are highly
374 capacious.
375
376 See:
377
378 Documentation/assoc_array.txt
379
380 for more information.
381
Al Viro5ea81762007-02-11 15:41:31 +0000382config HAS_IOMEM
Christoph Jaeger6341e622014-12-20 15:41:11 -0500383 bool
Al Viro5ea81762007-02-11 15:41:31 +0000384 depends on !NO_IOMEM
Richard Weinberger087fafd2012-02-07 01:22:46 +0100385 select GENERIC_IO
Al Viro5ea81762007-02-11 15:41:31 +0000386 default y
387
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700388config HAS_IOPORT_MAP
Christoph Jaeger6341e622014-12-20 15:41:11 -0500389 bool
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700390 depends on HAS_IOMEM && !NO_IOPORT_MAP
Al Viroee36c2b2006-12-13 00:35:00 -0800391 default y
392
Heiko Carstens411f0f32007-05-06 14:49:09 -0700393config HAS_DMA
Christoph Jaeger6341e622014-12-20 15:41:11 -0500394 bool
Heiko Carstens411f0f32007-05-06 14:49:09 -0700395 depends on !NO_DMA
396 default y
397
Geert Uytterhoeven928923c2007-08-22 14:01:36 -0700398config CHECK_SIGNATURE
399 bool
400
Rusty Russellaab46da2008-12-13 21:20:27 +1030401config CPUMASK_OFFSTACK
402 bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS
403 help
404 Use dynamic allocation for cpumask_var_t, instead of putting
405 them on the stack. This is a bit more expensive, but avoids
406 stack overflow.
407
Ben Hutchingsc39649c2011-01-19 11:03:25 +0000408config CPU_RMAP
409 bool
410 depends on SMP
411
Tom Herbert75957ba2011-11-28 16:32:35 +0000412config DQL
413 bool
414
George Spelvinb0125082014-08-06 16:09:23 -0700415config GLOB
416 bool
417# This actually supports modular compilation, but the module overhead
418# is ridiculous for the amount of code involved. Until an out-of-tree
419# driver asks for it, we'll just link it directly it into the kernel
420# when required. Since we're ignoring out-of-tree users, there's also
421# no need bother prompting for a manual decision:
422# prompt "glob_match() function"
423 help
424 This option provides a glob_match function for performing
425 simple text pattern matching. It originated in the ATA code
426 to blacklist particular drive models, but other device drivers
427 may need similar functionality.
428
429 All drivers in the Linux kernel tree that require this function
430 should automatically select this option. Say N unless you
431 are compiling an out-of tree driver which tells you that it
432 depends on this.
433
George Spelvin5f9be822014-08-06 16:09:25 -0700434config GLOB_SELFTEST
435 bool "glob self-test on init"
436 default n
437 depends on GLOB
438 help
439 This option enables a simple self-test of the glob_match
440 function on startup. It is primarily useful for people
441 working on the code to ensure they haven't introduced any
442 regressions.
443
444 It only adds a little bit of code and slows kernel boot (or
445 module load) by a small amount, so you're welcome to play with
446 it, but you probably don't need it.
447
Geert Uytterhoevene9cc8bd2009-03-04 14:53:30 +0800448#
449# Netlink attribute parsing support is select'ed if needed
450#
451config NLATTR
452 bool
453
Paul Mackerras09d4e0e2009-06-12 21:10:05 +0000454#
455# Generic 64-bit atomic support is selected if needed
456#
457config GENERIC_ATOMIC64
458 bool
459
Philipp Reisnerb411b362009-09-25 16:07:19 -0700460config LRU_CACHE
461 tristate
462
David Millerc6df4b12012-02-02 00:17:54 +0200463config CLZ_TAB
464 bool
465
Arend van Spriel10f81132011-05-31 11:22:16 +0200466config CORDIC
Michael Wittend89ce932011-07-29 12:59:51 +0000467 tristate "CORDIC algorithm"
Arend van Spriel10f81132011-05-31 11:22:16 +0200468 help
Michael Witten435a95c2011-07-29 13:36:04 +0000469 This option provides an implementation of the CORDIC algorithm;
470 calculations are in fixed point. Module will be called cordic.
Arend van Spriel10f81132011-05-31 11:22:16 +0200471
Aneesh V9c1c21a2012-04-27 17:54:03 +0530472config DDR
473 bool "JEDEC DDR data"
474 help
475 Data from JEDEC specs for DDR SDRAM memories,
476 particularly the AC timing parameters and addressing
477 information. This data is useful for drivers handling
478 DDR SDRAM controllers.
479
Christoph Hellwig511cbce2015-11-10 14:56:14 +0100480config IRQ_POLL
481 bool "IRQ polling library"
482 help
483 Helper library to poll interrupt mitigation using polling.
484
Dmitry Kasatkind9c46b12011-08-31 14:05:16 +0300485config MPILIB
Dmitry Kasatkin2e5f0942012-01-17 17:12:06 +0200486 tristate
David Millerc6df4b12012-02-02 00:17:54 +0200487 select CLZ_TAB
Dmitry Kasatkind9c46b12011-08-31 14:05:16 +0300488 help
489 Multiprecision maths library from GnuPG.
490 It is used to implement RSA digital signature verification,
491 which is used by IMA/EVM digital signature extension.
492
Dmitry Kasatkin5e8898e2012-01-17 17:12:03 +0200493config SIGNATURE
Dmitry Kasatkin2e5f0942012-01-17 17:12:06 +0200494 tristate
Dmitry Kasatkin0d1f64f2014-07-11 18:59:45 +0300495 depends on KEYS
496 select CRYPTO
Dmitry Kasatkinbe440ec2012-01-17 17:12:04 +0200497 select CRYPTO_SHA1
Dmitry Kasatkin051dbb92011-10-14 15:25:16 +0300498 select MPILIB
499 help
500 Digital signature verification. Currently only RSA is supported.
501 Implementation is done using GnuPG MPI library
502
David Daneyab253832012-07-05 18:12:38 +0200503#
504# libfdt files, only selected if needed.
505#
506config LIBFDT
507 bool
508
David Howellsa77ad6e2012-09-21 23:30:46 +0100509config OID_REGISTRY
510 tristate
511 help
512 Enable fast lookup object identifier registry.
513
Matthew Garrett0635eb82013-04-15 13:09:45 -0700514config UCS2_STRING
515 tristate
516
Geert Uytterhoevenee89bd62013-06-09 11:46:43 +0200517source "lib/fonts/Kconfig"
518
Robert Jarzmikf8bcbe62015-08-08 10:44:10 +0200519config SG_SPLIT
520 def_bool n
521 help
Geert Uytterhoeven7f7e92f2015-09-04 12:45:05 +0200522 Provides a helper to split scatterlists into chunks, each chunk being
523 a scatterlist. This should be selected by a driver or an API which
524 whishes to split a scatterlist amongst multiple DMA channels.
Robert Jarzmikf8bcbe62015-08-08 10:44:10 +0200525
Ming Lin9b1d6c82016-04-04 14:48:11 -0700526config SG_POOL
527 def_bool n
528 help
529 Provides a helper to allocate chained scatterlists. This should be
530 selected by a driver or an API which whishes to allocate chained
531 scatterlist.
532
Laura Abbott308c09f2014-08-08 14:23:25 -0700533#
534# sg chaining option
535#
536
537config ARCH_HAS_SG_CHAIN
538 def_bool n
539
Ross Zwisler61031952015-06-25 03:08:39 -0400540config ARCH_HAS_PMEM_API
541 bool
542
Ross Zwisler67a3e8f2015-08-27 13:14:20 -0600543config ARCH_HAS_MMIO_FLUSH
544 bool
545
Alexander Potapenkocd110162016-03-25 14:22:08 -0700546config STACKDEPOT
547 bool
548 select STACKTRACE
549
Omar Sandoval88459642016-09-17 08:38:44 -0600550config SBITMAP
551 bool
552
Karthikeyan Ramasubramanianfafd67f12016-09-16 17:15:13 -0600553config QMI_ENCDEC
554 bool "QMI Encode/Decode Library"
555 help
556 Library to encode & decode QMI messages from within
557 the kernel. The kernel drivers encode the C structure into
558 QMI message wire format and then send it over a transport.
559 The kernel drivers receive the QMI message over a transport
560 and then decode it into a C structure.
561
562config QMI_ENCDEC_DEBUG
563 bool "QMI Encode/Decode Library Debug"
564 help
565 Kernel config option to enable debugging QMI Encode/Decode
566 library. This will log the information regarding the element
567 and message being encoded & decoded.
568
Thomas Graf2de4ff72005-06-23 20:49:30 -0700569endmenu