From 71bfae9097a94bb9a07afc6c16077429d3e40709 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Fri, 15 Nov 2013 14:22:15 +0000
Subject: [PATCH] swiotlb-xen: add missing xen_dma_map_page call
swiotlb-xen is missing a xen_dma_map_page call in
xen_swiotlb_map_sg_attrs, in the bounce buffer path.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
drivers/xen/swiotlb-xen.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index a224bc74b6b9d..1eac0731c349f 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -555,6 +555,11 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
sg_dma_len(sgl) = 0;
return 0;
}
+ xen_dma_map_page(hwdev, pfn_to_page(map >> PAGE_SHIFT),
+ map & ~PAGE_MASK,
+ sg->length,
+ dir,
+ attrs);
sg->dma_address = xen_phys_to_bus(map);
} else {
/* we are not interested in the dma_addr returned by
--
2.39.5