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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2009-10-01 07:30:38 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-10-01 08:42:24 +0200 |
| commit | 04edbdef02ec4386a2ae38cab7ae7d166e17a756 (patch) | |
| tree | 4814b5f91000bcd730b0c21e072835b10b1ab641 /arch/x86/lib | |
| parent | x86: Fix csum_ipv6_magic asm memory clobber (diff) | |
| download | linux-04edbdef02ec4386a2ae38cab7ae7d166e17a756.tar.xz linux-04edbdef02ec4386a2ae38cab7ae7d166e17a756.zip | |
x86: Don't generate cmpxchg8b_emu if CONFIG_X86_CMPXCHG64=y
Conditionaly compile cmpxchg8b_emu.o and EXPORT_SYMBOL(cmpxchg8b_emu).
This reduces the kernel size a bit.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <4AC43E7E.1000600@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/lib')
| -rw-r--r-- | arch/x86/lib/Makefile | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index 3e549b8ec8c9..85f5db95c60f 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -15,8 +15,10 @@ ifeq ($(CONFIG_X86_32),y) obj-y += atomic64_32.o lib-y += checksum_32.o lib-y += strstr_32.o - lib-y += semaphore_32.o string_32.o cmpxchg8b_emu.o - + lib-y += semaphore_32.o string_32.o +ifneq ($(CONFIG_X86_CMPXCHG64),y) + lib-y += cmpxchg8b_emu.o +endif lib-$(CONFIG_X86_USE_3DNOW) += mmx_32.o else obj-y += io_64.o iomap_copy_64.o |