| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.18 013/150] swiotlb-xen: call xen_dma_sync_single_for_device when appropriate | Date | Tue, 13 Jan 2015 23:21:24 -0800 |
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3.18-stable review patch. If anyone has any objections, please let me know.
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From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
commit 9490c6c67e2f41760de8ece4e4f56f75f84ceb9e upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/xen/swiotlb-xen.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -500,7 +500,7 @@ xen_swiotlb_sync_single(struct device *h 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;
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