Re: [PATCH] staging: android: ion: Fix dma direction for dma_sync_sg_for_cpu/device

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On 12/15/2017 12:59 PM, Sushmita Susheelendra wrote:
Use the direction argument passed into begin_cpu_access
and end_cpu_access when calling the dma_sync_sg_for_cpu/device.
The actual cache primitive called depends on the direction
passed in.


Acked-by: Laura Abbott <labbott@xxxxxxxxxx>

Signed-off-by: Sushmita Susheelendra <ssusheel@xxxxxxxxxxxxxx>
---
  drivers/staging/android/ion/ion.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index a7d9b0e..f480885 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -346,7 +346,7 @@ static int ion_dma_buf_begin_cpu_access(struct dma_buf *dmabuf,
  	mutex_lock(&buffer->lock);
  	list_for_each_entry(a, &buffer->attachments, list) {
  		dma_sync_sg_for_cpu(a->dev, a->table->sgl, a->table->nents,
-				    DMA_BIDIRECTIONAL);
+				    direction);
  	}
  	mutex_unlock(&buffer->lock);
@@ -368,7 +368,7 @@ static int ion_dma_buf_end_cpu_access(struct dma_buf *dmabuf,
  	mutex_lock(&buffer->lock);
  	list_for_each_entry(a, &buffer->attachments, list) {
  		dma_sync_sg_for_device(a->dev, a->table->sgl, a->table->nents,
-				       DMA_BIDIRECTIONAL);
+				       direction);
  	}
  	mutex_unlock(&buffer->lock);




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