linux-kernel - [PATCH -mm 11/12] mn10300: use asm-generic/scatterlist.h

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Date:	Tue,  6 Apr 2010 08:52:46 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	akpm@...ux-foundation.org
Cc:	fujita.tomonori@....ntt.co.jp, linux-kernel@...r.kernel.org,
	David Howells <dhowells@...hat.com>,
	Koichi Yasutake <yasutake.koichi@...panasonic.com>
Subject: [PATCH -mm 11/12] mn10300: use asm-generic/scatterlist.h

Signed-off-by: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Cc: David Howells <dhowells@...hat.com>
Cc: Koichi Yasutake <yasutake.koichi@...panasonic.com>
---
 arch/mn10300/include/asm/scatterlist.h |   39 +-------------------------------
 1 files changed, 1 insertions(+), 38 deletions(-)

diff --git a/arch/mn10300/include/asm/scatterlist.h b/arch/mn10300/include/asm/scatterlist.h
index 6753590..7bd00b9 100644
--- a/arch/mn10300/include/asm/scatterlist.h
+++ b/arch/mn10300/include/asm/scatterlist.h
@@ -11,45 +11,8 @@
 #ifndef _ASM_SCATTERLIST_H
 #define _ASM_SCATTERLIST_H
 
-#include <asm/types.h>
-
-/*
- * Drivers must set either ->address or (preferred) page and ->offset
- * to indicate where data must be transferred to/from.
- *
- * Using page is recommended since it handles highmem data as well as
- * low mem. ->address is restricted to data which has a virtual mapping, and
- * it will go away in the future. Updating to page can be automated very
- * easily -- something like
- *
- * sg->address = some_ptr;
- *
- * can be rewritten as
- *
- * sg_set_page(virt_to_page(some_ptr));
- * sg->offset = (unsigned long) some_ptr & ~PAGE_MASK;
- *
- * and that's it. There's no excuse for not highmem enabling YOUR driver. /jens
- */
-struct scatterlist {
-#ifdef CONFIG_DEBUG_SG
-	unsigned long	sg_magic;
-#endif
-	unsigned long	page_link;
-	unsigned int	offset;		/* for highmem, page offset */
-	dma_addr_t	dma_address;
-	unsigned int	length;
-};
+#include <asm-generic/scatterlist.h>
 
 #define ISA_DMA_THRESHOLD (0x00ffffff)
 
-/*
- * These macros should be used after a pci_map_sg call has been done
- * to get bus addresses of each of the SG entries and their lengths.
- * You should only work with the number of sg entries pci_map_sg
- * returns.
- */
-#define sg_dma_address(sg)	((sg)->dma_address)
-#define sg_dma_len(sg)		((sg)->length)
-
 #endif /* _ASM_SCATTERLIST_H */
-- 
1.7.0

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