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authorStefano Stabellini <stefano.stabellini@eu.citrix.com>2013-08-05 17:30:48 +0100
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-08-09 11:29:00 -0400
commit781575cd8127c30a0444953bcd0b6d1e882df13e (patch)
treec23bbab4ab2ff532721e55f083651172c655aada /drivers/xen
parent4d86ec7a8a3f9c135fdc34d7aed2a9467e2e6ff9 (diff)
swiotlb-xen: replace dma_length with sg_dma_len() macro
swiotlb-xen has an implicit dependency on CONFIG_NEED_SG_DMA_LENGTH. Remove it by replacing dma_length with sg_dma_len. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen')
-rw-r--r--drivers/xen/swiotlb-xen.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index aadffcf7db9b..1b2277c311d2 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -506,13 +506,13 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
to do proper error handling. */
xen_swiotlb_unmap_sg_attrs(hwdev, sgl, i, dir,
attrs);
- sgl[0].dma_length = 0;
+ sg_dma_len(sgl) = 0;
return DMA_ERROR_CODE;
}
sg->dma_address = xen_phys_to_bus(map);
} else
sg->dma_address = dev_addr;
- sg->dma_length = sg->length;
+ sg_dma_len(sg) = sg->length;
}
return nelems;
}
@@ -533,7 +533,7 @@ xen_swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
BUG_ON(dir == DMA_NONE);
for_each_sg(sgl, sg, nelems, i)
- xen_unmap_single(hwdev, sg->dma_address, sg->dma_length, dir);
+ xen_unmap_single(hwdev, sg->dma_address, sg_dma_len(sg), dir);
}
EXPORT_SYMBOL_GPL(xen_swiotlb_unmap_sg_attrs);
@@ -555,7 +555,7 @@ xen_swiotlb_sync_sg(struct device *hwdev, struct scatterlist *sgl,
for_each_sg(sgl, sg, nelems, i)
xen_swiotlb_sync_single(hwdev, sg->dma_address,
- sg->dma_length, dir, target);
+ sg_dma_len(sg), dir, target);
}
void