From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.5 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1E6AAC76188 for ; Mon, 15 Jul 2019 03:20:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E3F8520644 for ; Mon, 15 Jul 2019 03:20:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="GqJNyAPx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729389AbfGODUY (ORCPT ); Sun, 14 Jul 2019 23:20:24 -0400 Received: from mail-pg1-f194.google.com ([209.85.215.194]:46390 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729165AbfGODUY (ORCPT ); Sun, 14 Jul 2019 23:20:24 -0400 Received: by mail-pg1-f194.google.com with SMTP id i8so6982462pgm.13; Sun, 14 Jul 2019 20:20:23 -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=KmjmTx0cDkAe4BsoggF2c5USLaF9+w472czn75Hcufo=; b=GqJNyAPxH0Ml0g59SFjtNPvfI/nMwwEmQBiMDuIUmbJNxGEbQuUvp4UuHCxkb4848N mc8GAIRsEBzwiVFxp9+2z7sHhc2s6zCZY6p+z8V0oyeg5YjWZml7szMhxsuWYg5Kg8eJ 7npQPI4AQEPuRJFUOjSIlLO+/pp32+xG+DZcylLjOlwElP60UxNrf8UGavSWXMtW4Maq /DBhmtm6BqdCNXAUc0g9J7267V2BPQ7BDPwOFG/EYl6r8K/sszLtpIroCvoh6ld1FuFP eFsVynfcUM/U9ebG1AZlUJ+GaLXNlfBCCD0Q0NY3xzeLdZOenyGS9aF/bGerjin5toUG fPiQ== 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=KmjmTx0cDkAe4BsoggF2c5USLaF9+w472czn75Hcufo=; b=uadVYlPi8lNEx7JDazBmOXLp10bd/VXf3ignAeRhS5JbI6VVAhJ24UprMJwp6OE/lA zdBF17dwq89gylTBMDJTtgrAocsuvvv2IX6beUJhHChmLsWaeb4UH4Z5XQHQ/9H+96E+ Z44sjBCeC7HFYtHrdksuEnCwb/K2lip5nuSgmUQOWUkEVKYMnxWf5XDqB8Bhvwmu8z2j BAIG7cqD75Ni+Yz0+ZE+RQjjQgaL5ucYpRQDDgZudfYblzZ2MeCRbjHyJdCPfHWNqUON g7Hsn1tSzdMVh9i/DZf10LJA85ZK4QFapNjfciPXNIbpq7QnKGXVebT25RboLuNSP2Ms rWTA== X-Gm-Message-State: APjAAAUq4QPIvMQb+FeYxHyjqTAVOXhLpvqd4Q3I2rf9yM7TQresSZHv l3Y9/hM2IG8qNMpPNEGXaUI= X-Google-Smtp-Source: APXvYqxHjzkaC+srO/ESTpNfjkimIX2OQWbqnxpKFEiSNS/7wssDV6FtTvwkIFT9kcz81LQd/+4Uhw== X-Received: by 2002:a17:90b:8d8:: with SMTP id ds24mr26449164pjb.135.1563160823209; Sun, 14 Jul 2019 20:20:23 -0700 (PDT) Received: from hfq-skylake.ipads-lab.se.sjtu.edu.cn ([202.120.40.82]) by smtp.googlemail.com with ESMTPSA id x1sm14037462pjo.4.2019.07.14.20.20.21 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 14 Jul 2019 20:20:22 -0700 (PDT) From: Fuqian Huang Cc: Bartlomiej Zolnierkiewicz , dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, Fuqian Huang Subject: [PATCH v3 24/24] video: fbdev-MMP: Remove call to memset after dma_alloc_coherent Date: Mon, 15 Jul 2019 11:20:17 +0800 Message-Id: <20190715032017.7311-1-huangfq.daxian@gmail.com> X-Mailer: git-send-email 2.11.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- Changes in v3: - Use actual commit rather than the merge commit in the commit message drivers/video/fbdev/mmp/fb/mmpfb.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/video/fbdev/mmp/fb/mmpfb.c b/drivers/video/fbdev/mmp/fb/mmpfb.c index e5b56f2199df..47bc7c59bbd8 100644 --- a/drivers/video/fbdev/mmp/fb/mmpfb.c +++ b/drivers/video/fbdev/mmp/fb/mmpfb.c @@ -612,7 +612,6 @@ static int mmpfb_probe(struct platform_device *pdev) ret = -ENOMEM; goto failed_destroy_mutex; } - memset(fbi->fb_start, 0, fbi->fb_size); dev_info(fbi->dev, "fb %dk allocated\n", fbi->fb_size/1024); /* fb power on */ -- 2.11.0