lib: build list_sort() only if needed

Build list_sort() only for configs that need it -- those that don't save
~581 bytes (i386).

Signed-off-by: Don Mullis <don.mullis@gmail.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Artem Bityutskiy <dedekind@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Don Mullis 2010-03-05 13:43:16 -08:00 committed by Linus Torvalds
parent 02b12b7a28
commit a069c266ae
4 changed files with 7 additions and 1 deletions

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@ -9,6 +9,7 @@ menuconfig DRM
depends on (AGP || AGP=n) && PCI && !EMULATED_CMPXCHG && MMU
select I2C
select I2C_ALGOBIT
select LIST_SORT
help
Kernel-level support for the Direct Rendering Infrastructure (DRI)
introduced in XFree86 4.0. If you say Y here, you need to select

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@ -7,6 +7,7 @@ config UBIFS_FS
select CRYPTO if UBIFS_FS_ZLIB
select CRYPTO_LZO if UBIFS_FS_LZO
select CRYPTO_DEFLATE if UBIFS_FS_ZLIB
select LIST_SORT
depends on MTD_UBI
help
UBIFS is a file system for flash devices which works on top of UBI.

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@ -160,6 +160,9 @@ config TEXTSEARCH_BM
config TEXTSEARCH_FSM
tristate
config LIST_SORT
boolean
config HAS_IOMEM
boolean
depends on !NO_IOMEM

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@ -21,7 +21,7 @@ lib-y += kobject.o kref.o klist.o
obj-y += bcd.o div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \
bust_spinlocks.o hexdump.o kasprintf.o bitmap.o scatterlist.o \
string_helpers.o gcd.o list_sort.o
string_helpers.o gcd.o
ifeq ($(CONFIG_DEBUG_KOBJECT),y)
CFLAGS_kobject.o += -DDEBUG
@ -40,6 +40,7 @@ lib-$(CONFIG_GENERIC_FIND_FIRST_BIT) += find_next_bit.o
lib-$(CONFIG_GENERIC_FIND_NEXT_BIT) += find_next_bit.o
obj-$(CONFIG_GENERIC_FIND_LAST_BIT) += find_last_bit.o
obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
obj-$(CONFIG_LIST_SORT) += list_sort.o
obj-$(CONFIG_LOCK_KERNEL) += kernel_lock.o
obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
obj-$(CONFIG_DEBUG_LIST) += list_debug.o