Re: [PATCH 1/2] [media] vb2: Store dma_dir in vb2_queue

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Hi Sakari,

On 19/10/2016 23:29, Sakari Ailus wrote:
Hi Thierry,

On Wed, Oct 19, 2016 at 10:24:16AM +0200, Thierry Escande wrote:
From: Pawel Osciak <posciak@xxxxxxxxxxxx>

Store dma_dir in struct vb2_queue and reuse it, instead of recalculating
it each time.

Signed-off-by: Pawel Osciak <posciak@xxxxxxxxxxxx>
Tested-by: Pawel Osciak <posciak@xxxxxxxxxxxx>
Reviewed-by: Tomasz Figa <tfiga@xxxxxxxxxxxx>
Reviewed-by: Owen Lin <owenlin@xxxxxxxxxxxx>
Signed-off-by: Thierry Escande <thierry.escande@xxxxxxxxxxxxx>
---
 drivers/media/v4l2-core/videobuf2-core.c | 12 +++---------
 drivers/media/v4l2-core/videobuf2-v4l2.c |  2 ++
 include/media/videobuf2-core.h           |  2 ++
 3 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 21900202..f12103c 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -194,8 +194,6 @@ static void __enqueue_in_driver(struct vb2_buffer *vb);
 static int __vb2_buf_mem_alloc(struct vb2_buffer *vb)
 {
 	struct vb2_queue *q = vb->vb2_queue;
-	enum dma_data_direction dma_dir =
-		q->is_output ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
 	void *mem_priv;
 	int plane;
 	int ret = -ENOMEM;
@@ -209,7 +207,7 @@ static int __vb2_buf_mem_alloc(struct vb2_buffer *vb)

 		mem_priv = call_ptr_memop(vb, alloc,
 				q->alloc_devs[plane] ? : q->dev,
-				q->dma_attrs, size, dma_dir, q->gfp_flags);
+				q->dma_attrs, size, q->dma_dir, q->gfp_flags);

My bad, I guess I expressed myself unclearly.

Could you introduce the macro in this patch? You can then remove q->dma_dir
altogether.
My bad. Sorry for the confusion...

The v3 is on its way.

Regards,
 Thierry

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