diff options
| -rw-r--r-- | drivers/xen/swiotlb-xen.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 2a7f545bd0b5..6dc969d5ea2f 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -53,8 +53,6 @@ * API. */ -#define XEN_SWIOTLB_ERROR_CODE (~(dma_addr_t)0x0) - static char *xen_io_tlb_start, *xen_io_tlb_end; static unsigned long xen_io_tlb_nslabs; /* @@ -406,7 +404,7 @@ static dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page, map = swiotlb_tbl_map_single(dev, start_dma_addr, phys, size, dir, attrs); if (map == SWIOTLB_MAP_ERROR) - return XEN_SWIOTLB_ERROR_CODE; + return DMA_MAPPING_ERROR; dev_addr = xen_phys_to_bus(map); xen_dma_map_page(dev, pfn_to_page(map >> PAGE_SHIFT), @@ -421,7 +419,7 @@ static dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page, attrs |= DMA_ATTR_SKIP_CPU_SYNC; swiotlb_tbl_unmap_single(dev, map, size, dir, attrs); - return XEN_SWIOTLB_ERROR_CODE; + return DMA_MAPPING_ERROR; } /* @@ -700,11 +698,6 @@ xen_swiotlb_get_sgtable(struct device *dev, struct sg_table *sgt, return dma_common_get_sgtable(dev, sgt, cpu_addr, handle, size, attrs); } -static int xen_swiotlb_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return dma_addr == XEN_SWIOTLB_ERROR_CODE; -} - const struct dma_map_ops xen_swiotlb_dma_ops = { .alloc = xen_swiotlb_alloc_coherent, .free = xen_swiotlb_free_coherent, @@ -719,5 +712,4 @@ const struct dma_map_ops xen_swiotlb_dma_ops = { .dma_supported = xen_swiotlb_dma_supported, .mmap = xen_swiotlb_dma_mmap, .get_sgtable = xen_swiotlb_get_sgtable, - .mapping_error = xen_swiotlb_mapping_error, }; |