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authorAlexander Duyck <alexander.h.duyck@intel.com>2016-11-10 15:05:31 +0300
committerKonrad Rzeszutek Wilk <konrad@kernel.org>2016-11-10 23:56:19 +0300
commitd29fa0cb7602fa3e96c9eee05e14d14d3e823c89 (patch)
tree1bf24161f9f990f0377bff4d3da4c609a8abaa29 /drivers/xen/swiotlb-xen.c
parent0443fa003fa199f41bfbed3012f314d02c5b1f24 (diff)
downloadlinux-d29fa0cb7602fa3e96c9eee05e14d14d3e823c89.tar.xz
swiotlb: Minor fix-ups for DMA_ATTR_SKIP_CPU_SYNC support
I am updating the paths so that instead of trying to pass "attr | DMA_ATTR_SKIP_CPU_SYNC" we instead just OR the value into attr and then pass it since attr will not be used after we make the unmap call. I realized there was one spot I had missed when I was applying the DMA attribute to the DMA mapping exception handling. This change corrects that. Finally it looks like there is a stray blank line at the end of the swiotlb_unmap_sg_attrs function that can be dropped. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
Diffstat (limited to 'drivers/xen/swiotlb-xen.c')
-rw-r--r--drivers/xen/swiotlb-xen.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 3d048afcee38..478fb91e3df2 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -420,8 +420,8 @@ dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page,
if (dma_capable(dev, dev_addr, size))
return dev_addr;
- swiotlb_tbl_unmap_single(dev, map, size, dir,
- attrs | DMA_ATTR_SKIP_CPU_SYNC);
+ attrs |= DMA_ATTR_SKIP_CPU_SYNC;
+ swiotlb_tbl_unmap_single(dev, map, size, dir, attrs);
return DMA_ERROR_CODE;
}