On 05/09/2019 9.02, YueHaibing wrote:
> drivers/dma/ti/edma.c: In function edma_probe:
> drivers/dma/ti/edma.c:2252:11: warning:
>  variable off set but not used [-Wunused-but-set-variable]
> 
> 'off' is not used now, so remove it.

This reminds me that this whole in EDMA driver xbar handling is mostly
broken...

Acked-by: Peter Ujfalusi <peter.ujfal...@ti.com>

> Signed-off-by: YueHaibing <yuehaib...@huawei.com>
> ---
>  drivers/dma/ti/edma.c | 12 +-----------
>  1 file changed, 1 insertion(+), 11 deletions(-)
> 
> diff --git a/drivers/dma/ti/edma.c b/drivers/dma/ti/edma.c
> index ba7c4f0..54fd981 100644
> --- a/drivers/dma/ti/edma.c
> +++ b/drivers/dma/ti/edma.c
> @@ -2249,10 +2249,8 @@ static int edma_probe(struct platform_device *pdev)
>  {
>       struct edma_soc_info    *info = pdev->dev.platform_data;
>       s8                      (*queue_priority_mapping)[2];
> -     int                     i, off;
>       const s16               (*rsv_slots)[2];
> -     const s16               (*xbar_chans)[2];
> -     int                     irq;
> +     int                     i, irq;
>       char                    *irq_name;
>       struct resource         *mem;
>       struct device_node      *node = pdev->dev.of_node;
> @@ -2349,14 +2347,6 @@ static int edma_probe(struct platform_device *pdev)
>                       edma_write_slot(ecc, i, &dummy_paramset);
>       }
>  
> -     /* Clear the xbar mapped channels in unused list */
> -     xbar_chans = info->xbar_chans;
> -     if (xbar_chans) {
> -             for (i = 0; xbar_chans[i][1] != -1; i++) {
> -                     off = xbar_chans[i][1];

originally we had
                        clear_bits(off, 1, ecc->channel_unused);
here, but I have removed it for some reason with
1be5336bc7ba050ee07d352643bf4c01c513553c


> -             }
> -     }
> -
>       irq = platform_get_irq_byname(pdev, "edma3_ccint");
>       if (irq < 0 && node)
>               irq = irq_of_parse_and_map(node, 0);
> 

- Péter

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