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| author |   Christoph Hellwig <hch@lst.de> | 2018-11-21 19:35:19 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-12-06 06:56:48 -0800 |
| commit | cad34be747b8a92146e71c8267f2c1d6794e34c0 (patch) | |
| tree | 638d7404b8b08119c27472d92156d6a43212c0dc /arch | |
| parent | iommu/vt-d: remove the mapping_error dma_map_ops method (diff) | |
| download | linux-dev-cad34be747b8a92146e71c8267f2c1d6794e34c0.tar.xz linux-dev-cad34be747b8a92146e71c8267f2c1d6794e34c0.zip | |
iommu/dma-iommu: remove the mapping_error dma_map_ops method
Return DMA_MAPPING_ERROR instead of 0 on a dma mapping failure and let
the core dma-mapping code handle the rest.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/mm/dma-mapping.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index 3c2c088a3562..4c0f498069e8 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -233,7 +233,7 @@ static void *__iommu_alloc_attrs(struct device *dev, size_t size, return NULL; *handle = iommu_dma_map_page(dev, page, 0, iosize, ioprot); - if (iommu_dma_mapping_error(dev, *handle)) { + if (*handle == DMA_MAPPING_ERROR) { if (coherent) __free_pages(page, get_order(size)); else @@ -250,7 +250,7 @@ static void *__iommu_alloc_attrs(struct device *dev, size_t size, return NULL; *handle = iommu_dma_map_page(dev, page, 0, iosize, ioprot); - if (iommu_dma_mapping_error(dev, *handle)) { + if (*handle == DMA_MAPPING_ERROR) { dma_release_from_contiguous(dev, page, size >> PAGE_SHIFT); return NULL; @@ -410,7 +410,7 @@ static dma_addr_t __iommu_map_page(struct device *dev, struct page *page, dma_addr_t dev_addr = iommu_dma_map_page(dev, page, offset, size, prot); if (!coherent && !(attrs & DMA_ATTR_SKIP_CPU_SYNC) && - !iommu_dma_mapping_error(dev, dev_addr)) + dev_addr != DMA_MAPPING_ERROR) __dma_map_area(page_address(page) + offset, size, dir); return dev_addr; @@ -493,7 +493,6 @@ static const struct dma_map_ops iommu_dma_ops = { .sync_sg_for_device = __iommu_sync_sg_for_device, .map_resource = iommu_dma_map_resource, .unmap_resource = iommu_dma_unmap_resource, - .mapping_error = iommu_dma_mapping_error, }; static int __init __iommu_dma_init(void) |