[3.13.y-ckt stable] Patch "swiotlb-xen: call xen_dma_sync_single_for_device when appropriate" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    swiotlb-xen: call xen_dma_sync_single_for_device when appropriate

to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue

This patch is scheduled to be released in version 3.13.11-ckt15.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From a3a064848d5674cdb7de7f66ca0a68017baad996 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini at eu.citrix.com>
Date: Fri, 21 Nov 2014 16:55:12 +0000
Subject: swiotlb-xen: call xen_dma_sync_single_for_device when appropriate

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 at eu.citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk at oracle.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 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 c65f6d0..d277278 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -484,7 +484,7 @@ 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;
--
1.9.1