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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2010-05-26 14:44:34 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-27 09:12:54 -0700
commit1ef04370d823a811d2cca9f237097559a6b99b12 (patch)
tree9b8d9feaa2fd47df7e42009128803bee78490bc3 /arch/x86
parent48c7cf4797d04b3ffcb060fa64c3c500b7371e8b (diff)
downloadlinux-1ef04370d823a811d2cca9f237097559a6b99b12.tar.gz
asm-generic: remove ARCH_HAS_SG_CHAIN in scatterlist.h
There are more architectures that don't support ARCH_HAS_SG_CHAIN than
those that support it.  This removes removes ARCH_HAS_SG_CHAIN in
asm-generic/scatterlist.h and lets arhictectures to define it.

It's clearer than defining ARCH_HAS_SG_CHAIN asm-generic/scatterlist.h and
undefing it in arhictectures that don't support it.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/include/asm/scatterlist.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/include/asm/scatterlist.h b/arch/x86/include/asm/scatterlist.h
index 75af592677ec..fb0b1874396f 100644
--- a/arch/x86/include/asm/scatterlist.h
+++ b/arch/x86/include/asm/scatterlist.h
@@ -1,8 +1,9 @@
 #ifndef _ASM_X86_SCATTERLIST_H
 #define _ASM_X86_SCATTERLIST_H
 
-#define ISA_DMA_THRESHOLD (0x00ffffff)
-
 #include <asm-generic/scatterlist.h>
 
+#define ISA_DMA_THRESHOLD (0x00ffffff)
+#define ARCH_HAS_SG_CHAIN
+
 #endif /* _ASM_X86_SCATTERLIST_H */