Messages in this thread Patch in this message | | | From | Stefano Stabellini <> | Subject | [PATCH 2/2] swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single | Date | Fri, 21 Nov 2014 17:00:20 +0000 |
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Need to pass the pointer within the swiotlb internal buffer to the swiotlb library, that in the case of xen_unmap_single is dev_addr, not paddr.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> CC: konrad.wilk@oracle.com CC: stable@vger.kernel.org --- drivers/xen/swiotlb-xen.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 810ad41..5ea1e3c 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -451,7 +451,7 @@ static void xen_unmap_single(struct device *hwdev, dma_addr_t dev_addr, /* NOTE: We use dev_addr here, not paddr! */ if (is_xen_swiotlb_buffer(dev_addr)) { - swiotlb_tbl_unmap_single(hwdev, paddr, size, dir); + swiotlb_tbl_unmap_single(hwdev, dev_addr, size, dir); return; } -- 1.7.10.4
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