On Mi, 2019-09-11 at 16:49 +0200, Philipp Puschmann wrote:
> In sdma_prep_dma_cyclic buf is redundant. Drop it.
>
> Signed-off-by: Philipp Puschmann <philipp.puschmann@xxxxxxxxx>
Reviewed-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> ---
> drivers/dma/imx-sdma.c | 7 ++-----
> 1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
> index 6a5a84504858..5b6beeee9f0e 100644
> --- a/drivers/dma/imx-sdma.c
> +++ b/drivers/dma/imx-sdma.c
> @@ -1544,7 +1544,7 @@ static struct dma_async_tx_descriptor
> *sdma_prep_dma_cyclic(
> struct sdma_engine *sdma = sdmac->sdma;
> int num_periods = buf_len / period_len;
> int channel = sdmac->channel;
> - int i = 0, buf = 0;
> + int i;
> struct sdma_desc *desc;
>
> dev_dbg(sdma->dev, "%s channel: %d\n", __func__, channel);
> @@ -1565,7 +1565,7 @@ static struct dma_async_tx_descriptor
> *sdma_prep_dma_cyclic(
> goto err_bd_out;
> }
>
> - while (buf < buf_len) {
> + for (i = 0; i < num_periods; i++) {
> struct sdma_buffer_descriptor *bd = &desc->bd[i];
> int param;
>
> @@ -1592,9 +1592,6 @@ static struct dma_async_tx_descriptor
> *sdma_prep_dma_cyclic(
> bd->mode.status = param;
>
> dma_addr += period_len;
> - buf += period_len;
> -
> - i++;
> }
>
> return vchan_tx_prep(&sdmac->vc, &desc->vd, flags);
