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Thu, 27 Jun 2019 10:35:43 -0700 (PDT) Received: from hfq-skylake.ipads-lab.se.sjtu.edu.cn ([202.120.40.82]) by smtp.googlemail.com with ESMTPSA id t11sm3479203pgb.33.2019.06.27.10.35.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 27 Jun 2019 10:35:42 -0700 (PDT) From: Fuqian Huang To: Subject: [PATCH 12/87] dma: imx-sdma: Remove call to memset after dma_alloc_coherent Date: Fri, 28 Jun 2019 01:35:35 +0800 Message-Id: <20190627173536.2457-1-huangfq.daxian@gmail.com> X-Mailer: git-send-email 2.11.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190627_103545_476678_D654AE9C X-CRM114-Status: GOOD ( 10.39 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fabio Estevam , Sascha Hauer , linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, Vinod Koul , NXP Linux Team , Pengutronix Kernel Team , Fuqian Huang , Dan Williams , Shawn Guo , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org In commit af7ddd8a627c ("Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping"), dma_alloc_coherent has already zeroed the memory. So memset is not needed. Signed-off-by: Fuqian Huang --- drivers/dma/imx-sdma.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 99d9f431ae2c..54d86359bdf8 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -1886,10 +1886,6 @@ static int sdma_init(struct sdma_engine *sdma) sdma->context_phys = ccb_phys + MAX_DMA_CHANNELS * sizeof (struct sdma_channel_control); - /* Zero-out the CCB structures array just allocated */ - memset(sdma->channel_control, 0, - MAX_DMA_CHANNELS * sizeof (struct sdma_channel_control)); - /* disable all channels */ for (i = 0; i < sdma->drvdata->num_events; i++) writel_relaxed(0, sdma->regs + chnenbl_ofs(sdma, i)); -- 2.11.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel