This is a note to let you know that I've just added the patch titled
swiotlb-xen: call xen_dma_sync_single_for_device when appropriate
to the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
swiotlb-xen-call-xen_dma_sync_single_for_device-when-appropriate.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 9490c6c67e2f41760de8ece4e4f56f75f84ceb9e Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Date: Fri, 21 Nov 2014 16:55:12 +0000
Subject: swiotlb-xen: call xen_dma_sync_single_for_device when appropriate
From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
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@xxxxxxxxxxxxx>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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;
Patches currently in stable-queue which might be from stefano.stabellini@xxxxxxxxxxxxx are
queue-3.18/swiotlb-xen-pass-dev_addr-to-swiotlb_tbl_unmap_single.patch
queue-3.18/swiotlb-xen-call-xen_dma_sync_single_for_device-when-appropriate.patch
queue-3.18/swiotlb-xen-remove-bug_on-in-xen_bus_to_phys.patch
queue-3.18/swiotlb-xen-pass-dev_addr-to-xen_dma_unmap_page-and-xen_dma_sync_single_for_cpu.patch
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