swiotlb-xen: call xen_dma_sync_single_for_device when appropriate

In xen_swiotlb_sync_single we always call xen_dma_sync_single_for_cpu,
even when we should call xen_dma_sync_single_for_device. Fix that.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: stable@vger.kernel.org

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 153cf14..810ad41 100644 (file)
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -502,7 +502,7 @@ xen_swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr,
                swiotlb_tbl_sync_single(hwdev, paddr, size, dir, target);
 
        if (target == SYNC_FOR_DEVICE)
-               xen_dma_sync_single_for_cpu(hwdev, dev_addr, size, dir);
+               xen_dma_sync_single_for_device(hwdev, dev_addr, size, dir);
 
        if (dir != DMA_FROM_DEVICE)
                return;