xref: /linux/lib/Kconfig (revision d39d0ed196aa1685bb24771e92f78633c66ac9cb)
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_FIND_NEXT_BIT
23	bool
24
25config GENERIC_FIND_LAST_BIT
26	bool
27	default y
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 AUDIT_GENERIC
90	bool
91	depends on AUDIT && !AUDIT_ARCH
92	default y
93
94#
95# compression support is select'ed if needed
96#
97config ZLIB_INFLATE
98	tristate
99
100config ZLIB_DEFLATE
101	tristate
102
103config LZO_COMPRESS
104	tristate
105
106config LZO_DECOMPRESS
107	tristate
108
109#
110# These all provide a common interface (hence the apparent duplication with
111# ZLIB_INFLATE; DECOMPRESS_GZIP is just a wrapper.)
112#
113config DECOMPRESS_GZIP
114	select ZLIB_INFLATE
115	tristate
116
117config DECOMPRESS_BZIP2
118	tristate
119
120config DECOMPRESS_LZMA
121	tristate
122
123config DECOMPRESS_LZO
124	select LZO_DECOMPRESS
125	tristate
126
127#
128# Generic allocator support is selected if needed
129#
130config GENERIC_ALLOCATOR
131	boolean
132
133#
134# reed solomon support is select'ed if needed
135#
136config REED_SOLOMON
137	tristate
138
139config REED_SOLOMON_ENC8
140	boolean
141
142config REED_SOLOMON_DEC8
143	boolean
144
145config REED_SOLOMON_ENC16
146	boolean
147
148config REED_SOLOMON_DEC16
149	boolean
150
151#
152# Textsearch support is select'ed if needed
153#
154config TEXTSEARCH
155	boolean
156
157config TEXTSEARCH_KMP
158	tristate
159
160config TEXTSEARCH_BM
161	tristate
162
163config TEXTSEARCH_FSM
164	tristate
165
166config BTREE
167	boolean
168
169config HAS_IOMEM
170	boolean
171	depends on !NO_IOMEM
172	default y
173
174config HAS_IOPORT
175	boolean
176	depends on HAS_IOMEM && !NO_IOPORT
177	default y
178
179config HAS_DMA
180	boolean
181	depends on !NO_DMA
182	default y
183
184config CHECK_SIGNATURE
185	bool
186
187config CPUMASK_OFFSTACK
188	bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS
189	help
190	  Use dynamic allocation for cpumask_var_t, instead of putting
191	  them on the stack.  This is a bit more expensive, but avoids
192	  stack overflow.
193
194config DISABLE_OBSOLETE_CPUMASK_FUNCTIONS
195       bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS
196       depends on EXPERIMENTAL && BROKEN
197
198#
199# Netlink attribute parsing support is select'ed if needed
200#
201config NLATTR
202	bool
203
204#
205# Generic 64-bit atomic support is selected if needed
206#
207config GENERIC_ATOMIC64
208       bool
209
210config LRU_CACHE
211	tristate
212
213endmenu
214