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authorSumit Semwal <sumit.semwal@ti.com>2012-01-27 10:39:27 +0100
committerSumit Semwal <sumit.semwal@ti.com>2012-03-26 08:01:58 +0200
commit33ea2dcb39ba50b0b69d1b1dc24702f084b46411 (patch)
treeec1e1b0c223e09861341f82d2aa0b13ec841be95 /drivers/base/dma-buf.c
parentdma-buf: Move code out of mutex-protected section in dma_buf_attach() (diff)
downloadlinux-33ea2dcb39ba50b0b69d1b1dc24702f084b46411.tar.xz
linux-33ea2dcb39ba50b0b69d1b1dc24702f084b46411.zip
dma-buf: add dma_data_direction to unmap dma_buf_op
Some exporters may use DMA map/unmap APIs in dma-buf ops, which require enum dma_data_direction for both map and unmap operations. Thus, the unmap dma_buf_op also needs to have enum dma_data_direction as a parameter. Reported-by: Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by: Sumit Semwal <sumit.semwal@ti.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Diffstat (limited to 'drivers/base/dma-buf.c')
-rw-r--r--drivers/base/dma-buf.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/base/dma-buf.c b/drivers/base/dma-buf.c
index 8afe2dd17912..c9a945fd1a04 100644
--- a/drivers/base/dma-buf.c
+++ b/drivers/base/dma-buf.c
@@ -271,16 +271,19 @@ EXPORT_SYMBOL_GPL(dma_buf_map_attachment);
* dma_buf_ops.
* @attach: [in] attachment to unmap buffer from
* @sg_table: [in] scatterlist info of the buffer to unmap
+ * @direction: [in] direction of DMA transfer
*
*/
void dma_buf_unmap_attachment(struct dma_buf_attachment *attach,
- struct sg_table *sg_table)
+ struct sg_table *sg_table,
+ enum dma_data_direction direction)
{
if (WARN_ON(!attach || !attach->dmabuf || !sg_table))
return;
mutex_lock(&attach->dmabuf->lock);
- attach->dmabuf->ops->unmap_dma_buf(attach, sg_table);
+ attach->dmabuf->ops->unmap_dma_buf(attach, sg_table,
+ direction);
mutex_unlock(&attach->dmabuf->lock);
}