4.14-stable review patch. If anyone has any objections, please let me know.
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From: Sushmita Susheelendra ssusheel@codeaurora.org
commit d6b246bb7a29703f53aa4c050b8b3205d749caee upstream.
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.
Signed-off-by: Sushmita Susheelendra ssusheel@codeaurora.org Acked-by: Laura Abbott labbott@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/staging/android/ion/ion.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -348,7 +348,7 @@ static int ion_dma_buf_begin_cpu_access( 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);
@@ -370,7 +370,7 @@ static int ion_dma_buf_end_cpu_access(st 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);