alpha: use asm-generic/scatterlist.h

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Matt Turner <mattst88@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 24efdfe..3e2e540 100644 (file)
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -61,6 +61,9 @@ 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

diff --git a/arch/alpha/include/asm/scatterlist.h b/arch/alpha/include/asm/scatterlist.h
index 440747c..85a0ef2 100644 (file)
--- a/arch/alpha/include/asm/scatterlist.h
+++ b/arch/alpha/include/asm/scatterlist.h
@@ -1,25 +1,10 @@
 #ifndef _ALPHA_SCATTERLIST_H
 #define _ALPHA_SCATTERLIST_H
 
-#include <asm/page.h>
-#include <asm/types.h>
-  
-struct scatterlist {
-#ifdef CONFIG_DEBUG_SG
-       unsigned long sg_magic;
-#endif
-       unsigned long page_link;
-       unsigned int offset;
-
-       unsigned int length;
-
-       dma_addr_t dma_address;
-       __u32 dma_length;
-};
+#define ISA_DMA_THRESHOLD (~0UL)
 
-#define sg_dma_address(sg)     ((sg)->dma_address)
-#define sg_dma_len(sg)         ((sg)->dma_length)
+#include <asm-generic/scatterlist.h>
 
-#define ISA_DMA_THRESHOLD (~0UL)
+#undef ARCH_HAS_SG_CHAIN
 
 #endif /* !(_ALPHA_SCATTERLIST_H) */