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@@ -661,17 +661,6 @@ xen_swiotlb_dma_supported(struct device *hwdev, u64 mask)
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return xen_virt_to_bus(xen_io_tlb_end - 1) <= mask;
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return xen_virt_to_bus(xen_io_tlb_end - 1) <= mask;
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}
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}
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-static int
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-xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask)
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-{
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- if (!dev->dma_mask || !xen_swiotlb_dma_supported(dev, dma_mask))
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- return -EIO;
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-
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- *dev->dma_mask = dma_mask;
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-
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- return 0;
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-}
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-
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/*
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/*
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* Create userspace mapping for the DMA-coherent memory.
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* Create userspace mapping for the DMA-coherent memory.
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* This function should be called with the pages from the current domain only,
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* This function should be called with the pages from the current domain only,
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@@ -734,7 +723,6 @@ const struct dma_map_ops xen_swiotlb_dma_ops = {
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.map_page = xen_swiotlb_map_page,
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.map_page = xen_swiotlb_map_page,
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.unmap_page = xen_swiotlb_unmap_page,
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.unmap_page = xen_swiotlb_unmap_page,
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.dma_supported = xen_swiotlb_dma_supported,
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.dma_supported = xen_swiotlb_dma_supported,
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- .set_dma_mask = xen_swiotlb_set_dma_mask,
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.mmap = xen_swiotlb_dma_mmap,
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.mmap = xen_swiotlb_dma_mmap,
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.get_sgtable = xen_swiotlb_get_sgtable,
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.get_sgtable = xen_swiotlb_get_sgtable,
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.mapping_error = xen_swiotlb_mapping_error,
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.mapping_error = xen_swiotlb_mapping_error,
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Christoph Hellwig