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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 663D9C7EE2F for ; Tue, 30 May 2023 18:31:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233449AbjE3Sbq (ORCPT ); Tue, 30 May 2023 14:31:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59022 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229997AbjE3Sbo (ORCPT ); Tue, 30 May 2023 14:31:44 -0400 X-Greylist: delayed 3600 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Tue, 30 May 2023 11:31:39 PDT Received: from esgaroth.petrovitsch.at (unknown [IPv6:2a01:4f8:120:527b:6876:2a4f:a044:62ad]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 695F2A7; Tue, 30 May 2023 11:31:39 -0700 (PDT) Received: from [172.16.0.14] (84-115-216-26.cable.dynamic.surfer.at [84.115.216.26]) (authenticated bits=0) by esgaroth.petrovitsch.at (8.17.1/8.17.1) with ESMTPSA id 34UFsxK01500577 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT); Tue, 30 May 2023 17:55:00 +0200 DKIM-Filter: OpenDKIM Filter v2.11.0 esgaroth.petrovitsch.at 34UFsxK01500577 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=petrovitsch.priv.at; s=default; t=1685462101; bh=2yoseQpk0oEKpAjWSngakamuL3Rs29Obuu+kf+gqlh4=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=c2/GGaS0sc5BANOVSnmlgp4xetUgAykF+Z7jT/lakOyBAPVCKjv4xM/EcX+O6axU9 NuiTRKajHjz1s1LYLBvK3ywe2ME574EdotIxouX/dk0mPXqL9MXTh4eGlb6lo3psmI 6YjM4y8Omfpg16I9lNqn9TMnlFxe0W0viCeRCOPo= X-Info-sendmail: I was here Message-ID: <1e87f3fa-58c5-d47f-3335-cd0a554b3144@petrovitsch.priv.at> Date: Tue, 30 May 2023 17:54:46 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Subject: Re: [PATCH] dmaengine: idxd: No need to clear memory after a dma_alloc_coherent() call Content-Language: en-US, de-AT, en-IE To: Christophe JAILLET , Fenghua Yu , Dave Jiang , Vinod Koul Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, dmaengine@vger.kernel.org References: From: Bernd Petrovitsch BIMI-Selector: v=BIMI1; s=default In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-DCC-x.dcc-servers-Metrics: esgaroth.petrovitsch.priv.at 104; Body=7 Fuz1=7 Fuz2=7 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 28/05/2023 16:11, Christophe JAILLET wrote: > dma_alloc_coherent() already clear the allocated memory, there is no need > to explicitly call memset(). Hmm, so wouldn't be dma_zalloc_coherent() a better name for the function? Kind regards, Bernd -- Bernd Petrovitsch Email : bernd@petrovitsch.priv.at There is NO CLOUD, just other people's computers. - FSFE LUGA : http://www.luga.at