[PATCH 39/44] xen-swiotlb: remove xen_swiotlb_set_dma_mask
From: hch@lst.de (Christoph Hellwig)
Date: 2017-06-16 18:13:37
Also in:
dri-devel, linux-iommu, linux-mips, linux-s390, linux-samsung-soc, linux-sh, linux-tegra, linuxppc-dev, lkml, netdev, sparclinux
Subsystem:
the rest, xen hypervisor interface, xen swiotlb subsystem · Maintainers:
Linus Torvalds, Juergen Gross, Stefano Stabellini
This just duplicates the generic implementation. Signed-off-by: Christoph Hellwig <hch@lst.de> --- drivers/xen/swiotlb-xen.c | 12 ------------ 1 file changed, 12 deletions(-)
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index c3a04b2d7532..82fc54f8eb77 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c@@ -661,17 +661,6 @@ xen_swiotlb_dma_supported(struct device *hwdev, u64 mask) return xen_virt_to_bus(xen_io_tlb_end - 1) <= mask; } -static int -xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask) -{ - if (!dev->dma_mask || !xen_swiotlb_dma_supported(dev, dma_mask)) - return -EIO; - - *dev->dma_mask = dma_mask; - - return 0; -} - /* * Create userspace mapping for the DMA-coherent memory. * This function should be called with the pages from the current domain only,
@@ -734,7 +723,6 @@ const struct dma_map_ops xen_swiotlb_dma_ops = { .map_page = xen_swiotlb_map_page, .unmap_page = xen_swiotlb_unmap_page, .dma_supported = xen_swiotlb_dma_supported, - .set_dma_mask = xen_swiotlb_set_dma_mask, .mmap = xen_swiotlb_dma_mmap, .get_sgtable = xen_swiotlb_get_sgtable, .mapping_error = xen_swiotlb_mapping_error,
--
2.11.0