From patchwork Mon Jul 15 03:17:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fuqian Huang X-Patchwork-Id: 11043325 X-Patchwork-Delegate: agross@codeaurora.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9085A13BD for ; Mon, 15 Jul 2019 03:17:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2134027F9F for ; Mon, 15 Jul 2019 03:17:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0525D27FB0; Mon, 15 Jul 2019 03:17:33 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.2 required=2.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_WEB autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E7FF727F9F for ; Mon, 15 Jul 2019 03:17:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729080AbfGODRb (ORCPT ); Sun, 14 Jul 2019 23:17:31 -0400 Received: from mail-pg1-f195.google.com ([209.85.215.195]:34395 "EHLO mail-pg1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726074AbfGODRb (ORCPT ); Sun, 14 Jul 2019 23:17:31 -0400 Received: by mail-pg1-f195.google.com with SMTP id n9so777160pgc.1; Sun, 14 Jul 2019 20:17:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=aF4g/95JsdU94BtU3dUNZxklmtVOywGbbXwlWkP3bEw=; b=AIwQPJeW8q5cgrnpiKU3/rcJC4cWM0mD0TRh2AhbAKuuTHK9Ky05V+G9OjRBhm1bq7 P3lG5WmWAhujTpKwkyqQFPRA5cKkN06Mp3lvBVABIxOtNSKkc+X3C8ctbtdtvx+OUUnS 2yACjj2pmoqqeCn+r29ZJFswPGymFo8fx/k6WJ9rQzWHs3eZL0+18gPPgvHF7LLhKMgX LpvmGzMqzdQSdggMynJ0hg5dEiYNwHc1fOfRs9N94OcXgkLPDOUNlNhrzQF/39rOIJN6 IwtGgeIMToWtMQTUb1HOrswIdbJzlwoe0nSY21deOuTdERhc8SmPnjPI4YgHXT2a5pmt Q3gA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=aF4g/95JsdU94BtU3dUNZxklmtVOywGbbXwlWkP3bEw=; b=Q26A6V0Q31RWXoyikPQtKFxQMrqBaFLSt26V8LSUkxky9ZsQELpN4myKbbTyP5ykrK aiCPQwizvLilhd3puT6mkPyo5CKR4sRxgRoQ0/hsWl3jVlmoIZ4lGuF9pF0N/1AW/sSr KyDZ/7AnIKifXnsC44pr6KRWAkRBlh4tnAM6TOI7Y5+qIAlP2fkZ7ApRsGH+uEv88rd7 InOTHUgzEj6TsfsFC7L/k0/SqTYCjf5qMbE0NvmbpYQrTO6RHO6l1fv640i/D/uk/yGZ momayGsG5jUmksiITJzVCOyVfsWJmrYig6FXCEEFHUUJHHuUDUJCN+omxhvNnCdB3RDm Sz+A== X-Gm-Message-State: APjAAAW3XeEVLCJNwxSMqvXQGV3m0WWEb52x84bttIsM4b18S0EGBd7E YhOvC17tU4rBJzdZOcnfpkM= X-Google-Smtp-Source: APXvYqyOe7zFXYz7ZSjmhhIOJzZrjismG1PRArYqe4qOQOu3/AyhmMPK2wwt0AqYDUsIUDfb78ZzRA== X-Received: by 2002:a65:4103:: with SMTP id w3mr13523619pgp.1.1563160650409; Sun, 14 Jul 2019 20:17:30 -0700 (PDT) Received: from hfq-skylake.ipads-lab.se.sjtu.edu.cn ([202.120.40.82]) by smtp.googlemail.com with ESMTPSA id u3sm13720277pjn.5.2019.07.14.20.17.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 14 Jul 2019 20:17:30 -0700 (PDT) From: Fuqian Huang Cc: Sinan Kaya , Andy Gross , David Brown , Vinod Koul , linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, Fuqian Huang Subject: [PATCH v3 04/24] dmaengine: qcom_hidma: Remove call to memset after dmam_alloc_coherent Date: Mon, 15 Jul 2019 11:17:23 +0800 Message-Id: <20190715031723.6375-1-huangfq.daxian@gmail.com> X-Mailer: git-send-email 2.11.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP In commit 518a2f1925c3 ("dma-mapping: zero memory returned from dma_alloc_*"), dma_alloc_coherent has already zeroed the memory. So memset is not needed. Signed-off-by: Fuqian Huang Acked-by: Sinan Kaya --- Changes in v3: - Use actual commit rather than the merge commit in the commit message drivers/dma/qcom/hidma_ll.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/dma/qcom/hidma_ll.c b/drivers/dma/qcom/hidma_ll.c index 5bf8b145c427..bb4471e84e48 100644 --- a/drivers/dma/qcom/hidma_ll.c +++ b/drivers/dma/qcom/hidma_ll.c @@ -749,7 +749,6 @@ struct hidma_lldev *hidma_ll_init(struct device *dev, u32 nr_tres, if (!lldev->tre_ring) return NULL; - memset(lldev->tre_ring, 0, (HIDMA_TRE_SIZE + 1) * nr_tres); lldev->tre_ring_size = HIDMA_TRE_SIZE * nr_tres; lldev->nr_tres = nr_tres; @@ -769,7 +768,6 @@ struct hidma_lldev *hidma_ll_init(struct device *dev, u32 nr_tres, if (!lldev->evre_ring) return NULL; - memset(lldev->evre_ring, 0, (HIDMA_EVRE_SIZE + 1) * nr_tres); lldev->evre_ring_size = HIDMA_EVRE_SIZE * nr_tres; /* the EVRE ring has to be EVRE_SIZE aligned */