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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2010-05-26 14:44:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-27 09:12:54 -0700
commit18e98307de0d746cb0845ebf66535ce2184c25a2 (patch)
treeeac998f31e3930ffc1f54e524a2a9bbc82b851e0 /arch/sparc
parent204f3a04449a9a775e465f7d87bcab08f170e59e (diff)
downloadlinux-18e98307de0d746cb0845ebf66535ce2184c25a2.tar.bz2
asm-generic: add NEED_SG_DMA_LENGTH to define sg_dma_len()
There are only two ways to define sg_dma_len(); use sg->dma_length or sg->length. This patch introduces NEED_SG_DMA_LENGTH that enables architectures to choose sg->dma_length or sg->length. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/Kconfig3
-rw-r--r--arch/sparc/include/asm/scatterlist.h2
2 files changed, 3 insertions, 2 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index d6781ce687e2..6f1470baa314 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -133,6 +133,9 @@ config ZONE_DMA
config NEED_DMA_MAP_STATE
def_bool y
+config NEED_SG_DMA_LENGTH
+ def_bool y
+
config GENERIC_ISA_DMA
bool
default y if SPARC32
diff --git a/arch/sparc/include/asm/scatterlist.h b/arch/sparc/include/asm/scatterlist.h
index 0fa0d6da2107..69d21bb052f1 100644
--- a/arch/sparc/include/asm/scatterlist.h
+++ b/arch/sparc/include/asm/scatterlist.h
@@ -1,8 +1,6 @@
#ifndef _SPARC_SCATTERLIST_H
#define _SPARC_SCATTERLIST_H
-#define sg_dma_len(sg) ((sg)->dma_length)
-
#define ISA_DMA_THRESHOLD (~0UL)
#include <asm-generic/scatterlist.h>