linux-kernel - [PATCH 01/11] swiotlb: Drop SG_ENT_VIRT

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Date:	Thu, 18 Dec 2008 23:11:12 -0600
From:	Becky Bruce <beckyb@...nel.crashing.org>
To:	mingo@...e.hu, jeremy@...p.org
Cc:	fujita.tomonori@....ntt.co.jp, linux-kernel@...r.kernel.org,
	ian.campbell@...rix.com, jbeulich@...ell.com, joerg.roedel@....com,
	benh@...nel.crashing.org, Becky Bruce <beckyb@...nel.crashing.org>
Subject: [PATCH 01/11] swiotlb: Drop SG_ENT_VIRT_ADDRESS macro

All SG_ENT_VIRT_ADDRESS does is call sg_virt(), get rid of
this needless layer of complexity.

Signed-off-by: Becky Bruce <beckyb@...nel.crashing.org>
---
 lib/swiotlb.c |    9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 96e8b10..3d9ac10 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -36,8 +36,7 @@
 #define OFFSET(val,align) ((unsigned long)	\
 	                   ( (val) & ( (align) - 1)))
 
-#define SG_ENT_VIRT_ADDRESS(sg)	(sg_virt((sg)))
-#define SG_ENT_PHYS_ADDRESS(sg)	virt_to_bus(SG_ENT_VIRT_ADDRESS(sg))
+#define SG_ENT_PHYS_ADDRESS(sg)	virt_to_bus(sg_virt(sg))
 
 /*
  * Maximum allowable number of contiguous slabs to map,
@@ -721,7 +720,7 @@ swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
 	BUG_ON(dir == DMA_NONE);
 
 	for_each_sg(sgl, sg, nelems, i) {
-		addr = SG_ENT_VIRT_ADDRESS(sg);
+		addr = sg_virt(sg);
 		dev_addr = virt_to_bus(addr);
 		if (swiotlb_force ||
 		    address_needs_mapping(hwdev, dev_addr, sg->length)) {
@@ -769,7 +768,7 @@ swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
 			unmap_single(hwdev, bus_to_virt(sg->dma_address),
 				     sg->dma_length, dir);
 		else if (dir == DMA_FROM_DEVICE)
-			dma_mark_clean(SG_ENT_VIRT_ADDRESS(sg), sg->dma_length);
+			dma_mark_clean(sg_virt(sg), sg->dma_length);
 	}
 }
 EXPORT_SYMBOL(swiotlb_unmap_sg_attrs);
@@ -802,7 +801,7 @@ swiotlb_sync_sg(struct device *hwdev, struct scatterlist *sgl,
 			sync_single(hwdev, bus_to_virt(sg->dma_address),
 				    sg->dma_length, dir, target);
 		else if (dir == DMA_FROM_DEVICE)
-			dma_mark_clean(SG_ENT_VIRT_ADDRESS(sg), sg->dma_length);
+			dma_mark_clean(sg_virt(sg), sg->dma_length);
 	}
 }
 
-- 
1.5.6.5

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