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=-13.3 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, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 52A26C48BD7 for ; Thu, 27 Jun 2019 17:34:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1F2B72064A for ; Thu, 27 Jun 2019 17:34:10 +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="jg5+pYiH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726498AbfF0ReJ (ORCPT ); Thu, 27 Jun 2019 13:34:09 -0400 Received: from mail-pl1-f193.google.com ([209.85.214.193]:33507 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726405AbfF0ReJ (ORCPT ); Thu, 27 Jun 2019 13:34:09 -0400 Received: by mail-pl1-f193.google.com with SMTP id c14so1680440plo.0; Thu, 27 Jun 2019 10:34:09 -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=3Q1DOtpxKXxdLlIaVV5P8yRJkk+jSj7Y5f1KvRCeIfE=; b=jg5+pYiHcCq27XQS48zsVfhUq56ANhhJPbeuOQfPHraYiCQEv2RGRak94LOg72w4AT 79VuIzmcytbt+Azr+BLRMVY9DDh81N542Q1E7RMGfS9ZurgOrxEFq2PzfGqsn4qDd3L4 Ce80DKS/azjxS1KuGNaaLcsenzMMOjfFC/S1gR2tpx+XkIPJf4g3ib181u5YAQwrs0TN F+91l0Um1Ok1GntG6clWgAQ8T67IW0EopRXq9CEMfey9blk8dcKx6O+sh2eFm1/XKXSy 4u2B/idvPlds3VfRTBJLvJ58Tef6cKzvRnFchX6ML4fnNU7U4DtM+TJqCGn35deJShcL lpCg== 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=3Q1DOtpxKXxdLlIaVV5P8yRJkk+jSj7Y5f1KvRCeIfE=; b=OIp5+3OzzYd4wuoCDpl+1dlEpa+ei4+XRLHedJTnABSqbsdu3zJt/WKonIon/eCEej Zvd1KehqnRDJZnqnQ7OYTxIc/ZAPHLYp/V1KKchgbUIzFuXoK33pidmuQgFMb0g+mVee b0WJW2Dz8TzBLmFWc6wTtcwwKX5PVTL7sp9kkm1g24Mo1pTzbkPicX/PvNMjXXgB4vQF 95F8v1vwNx8eTGfe6yh2p149DgJdttrs9pRSmIndwT7FLPv2Sluvp9IvaNKXO81sv16w Zr/JlsLonHX7r7tvAWWHT75UbPEWi276ANn9I21mEDhzA47BYqtdM/fCOwUYasgMYm/L PyfA== X-Gm-Message-State: APjAAAWRFjXSH14kFsP8VzEkIWaWPV79vErqxoEtOZS38hbL+elYhz30 iFhD+P/VSgusQE/ZmEfAcBE= X-Google-Smtp-Source: APXvYqyqdsATYg0k1ntVHN/E6qa3sEGiIXa2nZM+quCieZmr1Q9jOsi+pJDg1drWIrEhqxuKHMGDEw== X-Received: by 2002:a17:902:b7c1:: with SMTP id v1mr5948505plz.85.1561656848980; Thu, 27 Jun 2019 10:34:08 -0700 (PDT) Received: from hfq-skylake.ipads-lab.se.sjtu.edu.cn ([202.120.40.82]) by smtp.googlemail.com with ESMTPSA id 25sm3453041pfp.76.2019.06.27.10.34.07 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 27 Jun 2019 10:34:08 -0700 (PDT) From: Fuqian Huang Cc: Fuqian Huang , Jens Axboe , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 03/87] ata: libahci: Remove call to memset after dmam_alloc_coherent Date: Fri, 28 Jun 2019 01:34:01 +0800 Message-Id: <20190627173401.1985-1-huangfq.daxian@gmail.com> X-Mailer: git-send-email 2.11.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-ide-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ide@vger.kernel.org In commit af7ddd8a627c ("Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping"), dmam_alloc_coherent has already zeroed the memory. So memset is not needed. Signed-off-by: Fuqian Huang --- drivers/ata/libahci.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 0984c4b76d7e..e4c45d3cca79 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -2365,7 +2365,6 @@ static int ahci_port_start(struct ata_port *ap) mem = dmam_alloc_coherent(dev, dma_sz, &mem_dma, GFP_KERNEL); if (!mem) return -ENOMEM; - memset(mem, 0, dma_sz); /* * First item in chunk of DMA memory: 32-slot command table, -- 2.11.0