Re: [PATCH v7 25/49] media: pci: netup_unidvb: Stop direct calls to queue num_buffers field

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On 14/09/2023 15:32, Benjamin Gaignard wrote:
> Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>
> ---
>  drivers/media/pci/netup_unidvb/netup_unidvb_core.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
> index d85bfbb77a25..557985ba25db 100644
> --- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
> +++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
> @@ -293,12 +293,13 @@ static int netup_unidvb_queue_setup(struct vb2_queue *vq,
>  				    struct device *alloc_devs[])
>  {
>  	struct netup_dma *dma = vb2_get_drv_priv(vq);
> +	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
>  
>  	dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
>  
>  	*nplanes = 1;
> -	if (vq->num_buffers + *nbuffers < VIDEO_MAX_FRAME)
> -		*nbuffers = VIDEO_MAX_FRAME - vq->num_buffers;
> +	if (q_num_bufs + *nbuffers < VIDEO_MAX_FRAME)
> +		*nbuffers = VIDEO_MAX_FRAME - q_num_bufs;

Just drop this, the vb2 core tests this already.

Regards,

	Hans

>  	sizes[0] = PAGE_ALIGN(NETUP_DMA_PACKETS_COUNT * 188);
>  	dev_dbg(&dma->ndev->pci_dev->dev, "%s() nbuffers=%d sizes[0]=%d\n",
>  		__func__, *nbuffers, sizes[0]);




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