diff options
Diffstat (limited to 'lib/Kconfig')
| -rw-r--r-- | lib/Kconfig | 188 |
1 files changed, 173 insertions, 15 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index 028aba9e72a..334f7722a99 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -16,6 +16,15 @@ config BITREVERSE config RATIONAL boolean +config GENERIC_STRNCPY_FROM_USER + bool + +config GENERIC_STRNLEN_USER + bool + +config GENERIC_NET_UTILS + bool + config GENERIC_FIND_FIRST_BIT bool @@ -29,6 +38,19 @@ config GENERIC_IOMAP bool select GENERIC_PCI_IOMAP +config GENERIC_IO + boolean + default n + +config STMP_DEVICE + bool + +config PERCPU_RWSEM + boolean + +config ARCH_USE_CMPXCHG_LOCKREF + bool + config CRC_CCITT tristate "CRC-CCITT functions" help @@ -47,6 +69,8 @@ config CRC16 config CRC_T10DIF tristate "CRC calculation for the T10 Data Integrity Field" + select CRYPTO + select CRYPTO_CRCT10DIF help This option is only needed if a module that's not in the kernel tree needs to calculate CRC checks for use with the @@ -61,14 +85,71 @@ config CRC_ITU_T functions require M here. config CRC32 - tristate "CRC32 functions" + tristate "CRC32/CRC32c functions" default y select BITREVERSE help This option is provided for the case where no in-kernel-tree - modules require CRC32 functions, but a module built outside the - kernel tree does. Such modules that use library CRC32 functions - require M here. + modules require CRC32/CRC32c functions, but a module built outside + the kernel tree does. Such modules that use library CRC32/CRC32c + functions require M here. + +config CRC32_SELFTEST + bool "CRC32 perform self test on init" + default n + depends on CRC32 + help + This option enables the CRC32 library functions to perform a + self test on initialization. The self test computes crc32_le + and crc32_be over byte strings with random alignment and length + and computes the total elapsed time and number of bytes processed. + +choice + prompt "CRC32 implementation" + depends on CRC32 + default CRC32_SLICEBY8 + help + This option allows a kernel builder to override the default choice + of CRC32 algorithm. Choose the default ("slice by 8") unless you + know that you need one of the others. + +config CRC32_SLICEBY8 + bool "Slice by 8 bytes" + help + Calculate checksum 8 bytes at a time with a clever slicing algorithm. + This is the fastest algorithm, but comes with a 8KiB lookup table. + Most modern processors have enough cache to hold this table without + thrashing the cache. + + This is the default implementation choice. Choose this one unless + you have a good reason not to. + +config CRC32_SLICEBY4 + bool "Slice by 4 bytes" + help + Calculate checksum 4 bytes at a time with a clever slicing algorithm. + This is a bit slower than slice by 8, but has a smaller 4KiB lookup + table. + + Only choose this option if you know what you are doing. + +config CRC32_SARWATE + bool "Sarwate's Algorithm (one byte at a time)" + help + Calculate checksum a byte at a time using Sarwate's algorithm. This + is not particularly fast, but has a small 256 byte lookup table. + + Only choose this option if you know what you are doing. + +config CRC32_BIT + bool "Classic Algorithm (one bit at a time)" + help + Calculate checksum one bit at a time. This is VERY slow, but has + no lookup table. This is provided as a debugging option. + + Only choose this option if you are debugging crc32. + +endchoice config CRC7 tristate "CRC7 functions" @@ -101,6 +182,22 @@ config AUDIT_GENERIC depends on AUDIT && !AUDIT_ARCH default y +config AUDIT_ARCH_COMPAT_GENERIC + bool + default n + +config AUDIT_COMPAT_GENERIC + bool + depends on AUDIT_GENERIC && AUDIT_ARCH_COMPAT_GENERIC && COMPAT + default y + +config RANDOM32_SELFTEST + bool "PRNG perform self test on init" + default n + help + This option enables the 32 bit PRNG library functions to perform a + self test on initialization. + # # compression support is select'ed if needed # @@ -116,6 +213,15 @@ config LZO_COMPRESS config LZO_DECOMPRESS tristate +config LZ4_COMPRESS + tristate + +config LZ4HC_COMPRESS + tristate + +config LZ4_DECOMPRESS + tristate + source "lib/xz/Kconfig" # @@ -140,6 +246,10 @@ config DECOMPRESS_LZO select LZO_DECOMPRESS tristate +config DECOMPRESS_LZ4 + select LZ4_DECOMPRESS + tristate + # # Generic allocator support is selected if needed # @@ -221,14 +331,43 @@ config TEXTSEARCH_FSM config BTREE boolean +config INTERVAL_TREE + boolean + help + Simple, embeddable, interval-tree. Can find the start of an + overlapping range in log(n) time and then iterate over all + overlapping nodes. The algorithm is implemented as an + augmented rbtree. + + See: + + Documentation/rbtree.txt + + for more information. + +config ASSOCIATIVE_ARRAY + bool + help + Generic associative array. Can be searched and iterated over whilst + it is being modified. It is also reasonably quick to search and + modify. The algorithms are non-recursive, and the trees are highly + capacious. + + See: + + Documentation/assoc_array.txt + + for more information. + config HAS_IOMEM boolean depends on !NO_IOMEM + select GENERIC_IO default y -config HAS_IOPORT +config HAS_IOPORT_MAP boolean - depends on HAS_IOMEM && !NO_IOPORT + depends on HAS_IOMEM && !NO_IOPORT_MAP default y config HAS_DMA @@ -248,7 +387,7 @@ config CPUMASK_OFFSTACK config DISABLE_OBSOLETE_CPUMASK_FUNCTIONS bool "Disable obsolete cpumask functions" if DEBUG_PER_CPU_MAPS - depends on EXPERIMENTAL && BROKEN + depends on BROKEN config CPU_RMAP bool @@ -269,6 +408,9 @@ config NLATTR config GENERIC_ATOMIC64 bool +config ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE + def_bool y if GENERIC_ATOMIC64 + config LRU_CACHE tristate @@ -291,6 +433,14 @@ config CORDIC This option provides an implementation of the CORDIC algorithm; calculations are in fixed point. Module will be called cordic. +config DDR + bool "JEDEC DDR data" + help + Data from JEDEC specs for DDR SDRAM memories, + particularly the AC timing parameters and addressing + information. This data is useful for drivers handling + DDR SDRAM controllers. + config MPILIB tristate select CLZ_TAB @@ -299,14 +449,6 @@ config MPILIB It is used to implement RSA digital signature verification, which is used by IMA/EVM digital signature extension. -config MPILIB_EXTRA - bool - depends on MPILIB - help - Additional sources of multiprecision maths library from GnuPG. - This code is unnecessary for RSA digital signature verification, - but can be compiled if needed. - config SIGNATURE tristate depends on KEYS && CRYPTO @@ -316,4 +458,20 @@ config SIGNATURE Digital signature verification. Currently only RSA is supported. Implementation is done using GnuPG MPI library +# +# libfdt files, only selected if needed. +# +config LIBFDT + bool + +config OID_REGISTRY + tristate + help + Enable fast lookup object identifier registry. + +config UCS2_STRING + tristate + +source "lib/fonts/Kconfig" + endmenu |