linux-kernel - [PATCH] alpha: fix sg

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Message-Id: <20071120000231O.tomof@acm.org>
Date:	Tue, 20 Nov 2007 00:00:41 +0900
From:	FUJITA Tomonori <tomof@....org>
To:	jens.axboe@...cle.com
Cc:	fujita.tomonori@....ntt.co.jp, linux-kernel@...r.kernel.org
Subject: [PATCH] alpha: fix sg_page breakage

Signed-off-by: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
---
 arch/alpha/kernel/pci-noop.c |   14 ++++++++------
 1 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index 174b729..468b76c 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -12,6 +12,7 @@
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/dma-mapping.h>
+#include <linux/scatterlist.h>
 
 #include "proto.h"
 
@@ -172,18 +173,19 @@ dma_alloc_coherent(struct device *dev, size_t size,
 EXPORT_SYMBOL(dma_alloc_coherent);
 
 int
-dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+dma_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
 	   enum dma_data_direction direction)
 {
 	int i;
+	struct scatterlist *sg;
 
-	for (i = 0; i < nents; i++ ) {
+	for_each_sg(sgl, sg, nents, i) {
 		void *va;
 
-		BUG_ON(!sg[i].page);
-		va = page_address(sg[i].page) + sg[i].offset;
-		sg_dma_address(sg + i) = (dma_addr_t)virt_to_bus(va);
-		sg_dma_len(sg + i) = sg[i].length;
+		BUG_ON(!sg_page(sg));
+		va = sg_virt(sg);
+		sg_dma_address(sg) = (dma_addr_t)virt_to_bus(va);
+		sg_dma_len(sg) = sg->length;
 	}
 
 	return nents;
-- 
1.5.3.4

-
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