[PATCH v4 02/10] swiotlb-xen: replace dma_length with sg_dma_len() macro
From: Stefano Stabellini <hidden>
Date: 2013-08-15 11:11:11
Also in:
lkml, xen-devel
Subsystem:
the rest, xen hypervisor interface, xen swiotlb subsystem · Maintainers:
Linus Torvalds, Juergen Gross, Stefano Stabellini
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 <redacted> --- drivers/xen/swiotlb-xen.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index aadffcf..1b2277c 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
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1.7.2.5