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[209.132.180.67]) by mx.google.com with ESMTP id z3si19093487ejx.33.2019.09.16.07.35.44; Mon, 16 Sep 2019 07:36:10 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388653AbfIPOa3 (ORCPT + 99 others); Mon, 16 Sep 2019 10:30:29 -0400 Received: from metis.ext.pengutronix.de ([85.220.165.71]:46433 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388633AbfIPOa2 (ORCPT ); Mon, 16 Sep 2019 10:30:28 -0400 Received: from kresse.hi.pengutronix.de ([2001:67c:670:100:1d::2a]) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1i9s1K-0003g6-HX; Mon, 16 Sep 2019 16:30:26 +0200 Message-ID: Subject: Re: [PATCH 4/4] dmaengine: imx-sdma: drop redundant variable From: Lucas Stach To: Philipp Puschmann , linux-kernel@vger.kernel.org Cc: linux-serial@vger.kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, jslaby@suse.com, vkoul@kernel.org, linux-imx@nxp.com, kernel@pengutronix.de, gregkh@linuxfoundation.org, dmaengine@vger.kernel.org, dan.j.williams@intel.com, festevam@gmail.com, linux-arm-kernel@lists.infradead.org Date: Mon, 16 Sep 2019 16:30:25 +0200 In-Reply-To: <20190911144943.21554-5-philipp.puschmann@emlix.com> References: <20190911144943.21554-1-philipp.puschmann@emlix.com> <20190911144943.21554-5-philipp.puschmann@emlix.com> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.30.5-1.1 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::2a X-SA-Exim-Mail-From: l.stach@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Reviewed-by: Lucas Stach > --- > 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);