| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.10 06/44] swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single | Date | Tue, 13 Jan 2015 23:23:27 -0800 |
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3.10-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 2c3fc8d26dd09b9d7069687eead849ee81c78e46 upstream.
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> 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 @@ -390,7 +390,7 @@ static void xen_unmap_single(struct devi /* 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; }
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