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dma-buf: add dma_data_direction to unmap dma_buf_op

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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>
This commit is contained in:
Sumit Semwal
2012-01-27 15:09:27 +05:30
parent 2ed9201bdd
commit 33ea2dcb39
2 changed files with 10 additions and 5 deletions
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7
drivers/base/dma-buf.c
View File

@@ -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);
}