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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
parent48c7cf4797d04b3ffcb060fa64c3c500b7371e8b (diff)
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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>
-rw-r--r--arch/alpha/include/asm/scatterlist.h4
-rw-r--r--arch/arm/include/asm/scatterlist.h3
-rw-r--r--arch/ia64/include/asm/scatterlist.h4
-rw-r--r--arch/microblaze/include/asm/scatterlist.h4
-rw-r--r--arch/powerpc/include/asm/scatterlist.h1
-rw-r--r--arch/sparc/include/asm/scatterlist.h5
-rw-r--r--arch/x86/include/asm/scatterlist.h5
-rw-r--r--include/asm-generic/scatterlist.h2
8 files changed, 12 insertions, 16 deletions
diff --git a/arch/alpha/include/asm/scatterlist.h b/arch/alpha/include/asm/scatterlist.h
index 85a0ef25516b..5728c52a7412 100644
--- a/arch/alpha/include/asm/scatterlist.h
+++ b/arch/alpha/include/asm/scatterlist.h
@@ -1,10 +1,8 @@
#ifndef _ALPHA_SCATTERLIST_H
#define _ALPHA_SCATTERLIST_H
-#define ISA_DMA_THRESHOLD (~0UL)
-
#include <asm-generic/scatterlist.h>
-#undef ARCH_HAS_SG_CHAIN
+#define ISA_DMA_THRESHOLD (~0UL)
#endif /* !(_ALPHA_SCATTERLIST_H) */
diff --git a/arch/arm/include/asm/scatterlist.h b/arch/arm/include/asm/scatterlist.h
index bcda59f39941..2f87870d9347 100644
--- a/arch/arm/include/asm/scatterlist.h
+++ b/arch/arm/include/asm/scatterlist.h
@@ -3,9 +3,6 @@
#include <asm/memory.h>
#include <asm/types.h>
-
#include <asm-generic/scatterlist.h>
-#undef ARCH_HAS_SG_CHAIN
-
#endif /* _ASMARM_SCATTERLIST_H */
diff --git a/arch/ia64/include/asm/scatterlist.h b/arch/ia64/include/asm/scatterlist.h
index d8e98961dec7..f299a4fb25c8 100644
--- a/arch/ia64/include/asm/scatterlist.h
+++ b/arch/ia64/include/asm/scatterlist.h
@@ -1,6 +1,7 @@
#ifndef _ASM_IA64_SCATTERLIST_H
#define _ASM_IA64_SCATTERLIST_H
+#include <asm-generic/scatterlist.h>
/*
* It used to be that ISA_DMA_THRESHOLD had something to do with the
* DMA-limits of ISA-devices. Nowadays, its only remaining use (apart
@@ -10,7 +11,6 @@
* that's 4GB - 1.
*/
#define ISA_DMA_THRESHOLD 0xffffffff
-
-#include <asm-generic/scatterlist.h>
+#define ARCH_HAS_SG_CHAIN
#endif /* _ASM_IA64_SCATTERLIST_H */
diff --git a/arch/microblaze/include/asm/scatterlist.h b/arch/microblaze/include/asm/scatterlist.h
index be44d94cba54..dc4a8900cc80 100644
--- a/arch/microblaze/include/asm/scatterlist.h
+++ b/arch/microblaze/include/asm/scatterlist.h
@@ -1,3 +1,3 @@
-#define ISA_DMA_THRESHOLD (~0UL)
-
#include <asm-generic/scatterlist.h>
+
+#define ISA_DMA_THRESHOLD (~0UL)
diff --git a/arch/powerpc/include/asm/scatterlist.h b/arch/powerpc/include/asm/scatterlist.h
index 4ae35da4975e..34cc78fd0ef4 100644
--- a/arch/powerpc/include/asm/scatterlist.h
+++ b/arch/powerpc/include/asm/scatterlist.h
@@ -15,5 +15,6 @@
#ifdef __powerpc64__
#define ISA_DMA_THRESHOLD (~0UL)
#endif
+#define ARCH_HAS_SG_CHAIN
#endif /* _ASM_POWERPC_SCATTERLIST_H */
diff --git a/arch/sparc/include/asm/scatterlist.h b/arch/sparc/include/asm/scatterlist.h
index 69d21bb052f1..433e45f05fd4 100644
--- a/arch/sparc/include/asm/scatterlist.h
+++ b/arch/sparc/include/asm/scatterlist.h
@@ -1,8 +1,9 @@
#ifndef _SPARC_SCATTERLIST_H
#define _SPARC_SCATTERLIST_H
-#define ISA_DMA_THRESHOLD (~0UL)
-
#include <asm-generic/scatterlist.h>
+#define ISA_DMA_THRESHOLD (~0UL)
+#define ARCH_HAS_SG_CHAIN
+
#endif /* !(_SPARC_SCATTERLIST_H) */
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 */
diff --git a/include/asm-generic/scatterlist.h b/include/asm-generic/scatterlist.h
index 5e087944a659..5de07355fad4 100644
--- a/include/asm-generic/scatterlist.h
+++ b/include/asm-generic/scatterlist.h
@@ -31,6 +31,4 @@ struct scatterlist {
#define sg_dma_len(sg) ((sg)->length)
#endif
-#define ARCH_HAS_SG_CHAIN
-
#endif /* __ASM_GENERIC_SCATTERLIST_H */