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=-7.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 67968C4321A for ; Sat, 29 Jun 2019 15:43:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 40C9320828 for ; Sat, 29 Jun 2019 15:43:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="gzx7V4JX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726954AbfF2Pna (ORCPT ); Sat, 29 Jun 2019 11:43:30 -0400 Received: from mail-io1-f68.google.com ([209.85.166.68]:44704 "EHLO mail-io1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726935AbfF2Pn3 (ORCPT ); Sat, 29 Jun 2019 11:43:29 -0400 Received: by mail-io1-f68.google.com with SMTP id s7so18955375iob.11 for ; Sat, 29 Jun 2019 08:43:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=YhneT2OmUYYi9QQ0MWtStUhcK32OoDHrBHLq0QqvII0=; b=gzx7V4JXv1yIMC1C4PE+AlQaFNr4179v472zY8PYX88RGqUxkH3tj0QWMraoyrCur+ x0Ln//TKjRXU3/0daqZ4WhxmD48qGGn6/KTpnFa8W7fivp7KOEWfMFv3W869Lqila3O/ pfRqFtQ22fhNfMf0mqwEWooFYh3b4NwPyr3FsIPAXUHzWsrkXWzuo3E6C0Vubol99OZs NB3xAU3tI0lb2lyyB0dUmtkgyng5YH4fn6RE8JzN9XZ54izZnDssDHYrRwuPQu1U1zV0 Ebic1VG1ZhQ+lZrXNTtPucunew8pUH9ohcNRLtIyBdlD0LVnhn/LS6yo7W/qm31oACsm YpWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=YhneT2OmUYYi9QQ0MWtStUhcK32OoDHrBHLq0QqvII0=; b=LbKsdICuVqXyEWWuihZvB83gLA+g+BIYOXFbZoLYLBqrcBAkIXRnyAklCHh/6A5NlC WCdyjiUVQG6YDubzzHjy/oHVXCOK5c7DFv9g0Bs9dVvNDswxRPnMHzF+j33gOx+ZFQGl 6qXJ7S8qK0qlwh5yEBR3dtLT+12uFMTCZSvEMtcyGgrAIOLSgHiUmQBOeJIgqWOQDx+3 OC61nKim+L7nHECuxK5TqoRTfrqohixNu+EFbChpiaWCHB8E7hwU1iMT+dmIcRVkLWE1 Cbwho40lwDqlVDrhyuUUcfeO4LqyNsdmcdQnxYgENqu2G5ZfSXnIwvPuEHq8LFMtsFoG thyw== X-Gm-Message-State: APjAAAUBrOdgRYoE+zEmAvhEEI/bUmLLTvt6PRHecIAdjDr7gvP1mnlm CZpHoEc2SMl97mMDeUbDyi8bnc9qJCPfSg== X-Google-Smtp-Source: APXvYqwoYmEeVwgNhFmmEm7gDfo/KRAYwjfDRTfmgp9SoHljFXCTaI8fFJZj1aodx+zyjKdpr100Sg== X-Received: by 2002:a05:6638:5:: with SMTP id z5mr18717283jao.58.1561823008600; Sat, 29 Jun 2019 08:43:28 -0700 (PDT) Received: from [192.168.1.158] ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id c17sm8007129ioo.82.2019.06.29.08.43.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 29 Jun 2019 08:43:27 -0700 (PDT) Subject: Re: [PATCH 09/87] block: mtip32xx: Remove call to memset after dma_alloc_coherent To: Fuqian Huang Cc: Hannes Reinecke , Johannes Thumshirn , Matthew Wilcox , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org References: <20190627173506.2297-1-huangfq.daxian@gmail.com> From: Jens Axboe Message-ID: Date: Sat, 29 Jun 2019 09:43:26 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.1 MIME-Version: 1.0 In-Reply-To: <20190627173506.2297-1-huangfq.daxian@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/27/19 11:35 AM, Fuqian Huang wrote: > 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. Applied, thanks. -- Jens Axboe