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=unavailable 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 4D174C48BDA for ; Thu, 27 Jun 2019 17:34:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2960F2133F for ; Thu, 27 Jun 2019 17:34:02 +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="geEroXRs" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726653AbfF0ReA (ORCPT ); Thu, 27 Jun 2019 13:34:00 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:34459 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726498AbfF0ReA (ORCPT ); Thu, 27 Jun 2019 13:34:00 -0400 Received: by mail-pf1-f195.google.com with SMTP id c85so1587950pfc.1; Thu, 27 Jun 2019 10:34:00 -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=rm4Hty80lq/K/gNv/Wu+JYcakoFS865X/QwhUMnSBLQ=; b=geEroXRsRRS0uQfg7ei2HTk4MvUG6BZ2TCUOkuMG09wlpLIQaVJt8dngZeFm+aa/Em lNpcmYDkRC87m5xmo5llMWl1EcA+Jx2Co3GZLz5u7ZMZVz+RW2K8WErcbKUtvEHco5Pz gve/9gVGjIApQmEPZa8/njHGb0EseWQr8CiHcUWtSbY4pWvChxjhjk77Z0PaZrD+ENxL LuSso5Lpitr6TSo6ISWwhdp3LFc7hsTEs4jcLW71OmBP3mQy7cBkzl91SD7bR13ht9h6 rDASDyT/TynTDN+ExUIgaVLRU/q3YJIZxFXiSHGD5JMlVcaYt2VP6xiKDl1fSHRHgTNx GGpQ== 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=rm4Hty80lq/K/gNv/Wu+JYcakoFS865X/QwhUMnSBLQ=; b=Uvur0CYA8W9QuWKtn/aXaGOl8oTJMMr/Jn9vjSYCTF36Ah3jmKOFXkm19N6LRRDJRT IAISqK+/JHWp5L3HQrvPZqnsKcCJBZTdmpH1CfvHKYY4WWMB579vF/JDHZoIqkzP8MjW vdvx+VWZEefJUD1zq/3fnbSBzmLrMmVB3snsHlFyxPLVRX2/RmgkbZMo9qyaiZKfEwBl vhV7PQkpOuy/vWBK3sbyIa/XVw1f7C0O0VOVMU/JTntkGA33I7b7oKPYxIZGuENr+o9e hq52qPe+6ZpfXjgEB0+dq17SsQ+B0rUaLSdR7mn5Ip1lHWH9Go9lfqNDLd3+KNexn+Ts Kq5A== X-Gm-Message-State: APjAAAWZfqqv++lMRB7WQPzCMLEPRRMsrtQ10HUW344VDCpwad2hElih 7A75ZeKZimspR5gNeA47Glo= X-Google-Smtp-Source: APXvYqzYEADeNpCqcwmyRjIl244F96hTAtvqwROhEGx/WCLpGb4SpknIAr0RW9Wm5avWowOZLRUKWw== X-Received: by 2002:a65:4383:: with SMTP id m3mr4706076pgp.435.1561656839698; Thu, 27 Jun 2019 10:33:59 -0700 (PDT) Received: from hfq-skylake.ipads-lab.se.sjtu.edu.cn ([202.120.40.82]) by smtp.googlemail.com with ESMTPSA id o2sm2638615pgp.74.2019.06.27.10.33.57 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 27 Jun 2019 10:33:59 -0700 (PDT) From: Fuqian Huang Cc: Fuqian Huang , Jens Axboe , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 02/87] ata: acard-ahci: Remove call to memset after dmam_alloc_coherent Date: Fri, 28 Jun 2019 01:33:46 +0800 Message-Id: <20190627173346.1933-1-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 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/acard-ahci.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/ata/acard-ahci.c b/drivers/ata/acard-ahci.c index b1b49dbd0b14..85357f27a66b 100644 --- a/drivers/ata/acard-ahci.c +++ b/drivers/ata/acard-ahci.c @@ -344,7 +344,6 @@ static int acard_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