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-rw-r--r--drivers/xen/swiotlb-xen.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index bffb35993c9d..e99f0614dcb9 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -46,7 +46,7 @@
* API.
*/
-static char *xen_io_tlb_start, *xen_io_tlb_end;
+static char *xen_io_tlb_start;
static unsigned long xen_io_tlb_nslabs;
/*
* Quick lookup value of the bus address of the IOTLB.
@@ -82,11 +82,6 @@ static inline phys_addr_t xen_dma_to_phys(struct device *dev,
return xen_bus_to_phys(dev, dma_to_phys(dev, dma_addr));
}
-static inline dma_addr_t xen_virt_to_bus(struct device *dev, void *address)
-{
- return xen_phys_to_dma(dev, virt_to_phys(address));
-}
-
static inline int range_straddles_page_boundary(phys_addr_t p, size_t size)
{
unsigned long next_bfn, xen_pfn = XEN_PFN_DOWN(p);
@@ -250,7 +245,6 @@ retry:
rc = swiotlb_late_init_with_tbl(xen_io_tlb_start, xen_io_tlb_nslabs);
end:
- xen_io_tlb_end = xen_io_tlb_start + bytes;
if (!rc)
swiotlb_set_max_segment(PAGE_SIZE);
@@ -558,7 +552,7 @@ xen_swiotlb_sync_sg_for_device(struct device *dev, struct scatterlist *sgl,
static int
xen_swiotlb_dma_supported(struct device *hwdev, u64 mask)
{
- return xen_virt_to_bus(hwdev, xen_io_tlb_end - 1) <= mask;
+ return xen_phys_to_dma(hwdev, io_tlb_end - 1) <= mask;
}
const struct dma_map_ops xen_swiotlb_dma_ops = {