Commit 2c64e9cb authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Linus Torvalds
Browse files

lib: Move mathematic helpers to separate folder 

For better maintenance and expansion move the mathematic helpers to the
separate folder.

No functional change intended.

Note, the int_sqrt() is not used as a part of lib, so, moved to regular
obj.

Link: http://lkml.kernel.org/r/20190323172531.80025-1-andriy.shevchenko@linux.intel.com


Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Ray Jui <rjui@broadcom.com>
[mchehab+samsung@kernel.org: fix broken doc references for div64.c and gcd.c]
  Link: http://lkml.kernel.org/r/734f49bae5d4052b3c25691dfefad59bea2e5843.1555580999.git.mchehab+samsung@kernel.org


Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b5c56e0c

Documentation/core-api/kernel-api.rst

+2 −2
Original line number Diff line number Diff line
@@ -147,10 +147,10 @@ Division Functions 
.. kernel-doc:: include/linux/math64.h

   :internal:



.. kernel-doc:: lib/div64.c

.. kernel-doc:: lib/math/div64.c

   :functions: div_s64_rem div64_u64_rem div64_u64 div64_s64



.. kernel-doc:: lib/gcd.c

.. kernel-doc:: lib/math/gcd.c

   :export:



UUID/GUID

lib/Kconfig

+2 −12
Original line number Diff line number Diff line
@@ -46,9 +46,6 @@ config HAVE_ARCH_BITREVERSE 
	  This option enables the use of hardware bit-reversal instructions on

	  architectures which support such operations.



config RATIONAL

	bool



config GENERIC_STRNCPY_FROM_USER

	bool
@@ -61,6 +58,8 @@ config GENERIC_NET_UTILS 
config GENERIC_FIND_FIRST_BIT

	bool



source "lib/math/Kconfig"



config NO_GENERIC_PCI_IOPORT_MAP

	bool
@@ -531,12 +530,6 @@ config LRU_CACHE 
config CLZ_TAB

	bool



config CORDIC

	tristate "CORDIC algorithm"

	help

	  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
@@ -628,9 +621,6 @@ config SBITMAP 
config PARMAN

	tristate "parman" if COMPILE_TEST



config PRIME_NUMBERS

	tristate



config STRING_SELFTEST

	tristate "Test string functions"

lib/Makefile

+6 −9
Original line number Diff line number Diff line
@@ -30,7 +30,7 @@ endif 


lib-y := ctype.o string.o vsprintf.o cmdline.o \

	 rbtree.o radix-tree.o timerqueue.o xarray.o \

	 idr.o int_sqrt.o extable.o \

	 idr.o extable.o \

	 sha1.o chacha.o irq_regs.o argv_split.o \

	 flex_proportions.o ratelimit.o show_mem.o \

	 is_single_threaded.o plist.o decompress.o kobject_uevent.o \
@@ -44,11 +44,11 @@ lib-$(CONFIG_SMP) += cpumask.o 
lib-y	+= kobject.o klist.o

obj-y	+= lockref.o



obj-y += bcd.o div64.o sort.o parser.o debug_locks.o random32.o \

obj-y += bcd.o sort.o parser.o debug_locks.o random32.o \

	 bust_spinlocks.o kasprintf.o bitmap.o scatterlist.o \

	 gcd.o lcm.o list_sort.o uuid.o iov_iter.o clz_ctz.o \

	 list_sort.o uuid.o iov_iter.o clz_ctz.o \

	 bsearch.o find_bit.o llist.o memweight.o kfifo.o \

	 percpu-refcount.o rhashtable.o reciprocal_div.o \

	 percpu-refcount.o rhashtable.o \

	 once.o refcount.o usercopy.o errseq.o bucket_locks.o \

	 generic-radix-tree.o

obj-$(CONFIG_STRING_SELFTEST) += test_string.o
@@ -102,6 +102,8 @@ endif 
obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o

CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any)



obj-y += math/



obj-$(CONFIG_GENERIC_IOMAP) += iomap.o

obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o

obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
@@ -121,7 +123,6 @@ obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o 


obj-$(CONFIG_BITREVERSE) += bitrev.o

obj-$(CONFIG_PACKING)	+= packing.o

obj-$(CONFIG_RATIONAL)	+= rational.o

obj-$(CONFIG_CRC_CCITT)	+= crc-ccitt.o

obj-$(CONFIG_CRC16)	+= crc16.o

obj-$(CONFIG_CRC_T10DIF)+= crc-t10dif.o
@@ -195,8 +196,6 @@ obj-$(CONFIG_ATOMIC64_SELFTEST) += atomic64_test.o 


obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o



obj-$(CONFIG_CORDIC) += cordic.o



obj-$(CONFIG_DQL) += dynamic_queue_limits.o



obj-$(CONFIG_GLOB) += glob.o
@@ -238,8 +237,6 @@ obj-$(CONFIG_ASN1) += asn1_decoder.o 


obj-$(CONFIG_FONT_SUPPORT) += fonts/



obj-$(CONFIG_PRIME_NUMBERS) += prime_numbers.o



hostprogs-y	:= gen_crc32table

hostprogs-y	+= gen_crc64table

clean-files	:= crc32table.h

lib/math/Kconfig

0 → 100644
+11 −0
Original line number Diff line number Diff line 
config CORDIC

	tristate "CORDIC algorithm"

	help

	  This option provides an implementation of the CORDIC algorithm;

	  calculations are in fixed point. Module will be called cordic.



config PRIME_NUMBERS

	tristate



config RATIONAL

	bool

lib/math/Makefile

0 → 100644
+5 −0
Original line number Diff line number Diff line 
obj-y += div64.o gcd.o lcm.o int_sqrt.o reciprocal_div.o



obj-$(CONFIG_CORDIC)		+= cordic.o

obj-$(CONFIG_PRIME_NUMBERS)	+= prime_numbers.o

obj-$(CONFIG_RATIONAL)		+= rational.o

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