From patchwork Thu Jul 18 13:16:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuhong Yuan X-Patchwork-Id: 11048939 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 94A9613AC for ; Thu, 18 Jul 2019 13:16:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8229A28767 for ; Thu, 18 Jul 2019 13:16:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7444F28784; Thu, 18 Jul 2019 13:16:28 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.2 required=2.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_WEB autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 242CF28767 for ; Thu, 18 Jul 2019 13:16:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727685AbfGRNQ0 (ORCPT ); Thu, 18 Jul 2019 09:16:26 -0400 Received: from mail-pg1-f196.google.com ([209.85.215.196]:39319 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726608AbfGRNQ0 (ORCPT ); Thu, 18 Jul 2019 09:16:26 -0400 Received: by mail-pg1-f196.google.com with SMTP id u17so12894622pgi.6; Thu, 18 Jul 2019 06:16:26 -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:mime-version :content-transfer-encoding; bh=E264ER/0qOw955RgC9Lbu6scgSqBy/HNaAzmWqDshh8=; b=cRoEXgvJ5mOD5AC1NfZ5n0dqbxnmKR6608avDM/hCQ6Eb3WU6CeMZhJTSGDOX+UP5G YOlKOzsLVh2TJo0lUb2P17QZH7S1dDDyM0vsF8mYOHkXGmYb1aNdNwIK+6t2PJ6opJ33 prGqBuzXg6KhGLwSt+PfUdEyfxucVnMV/etoWncWmwhPVBSEpdTTLOE8tbeiVjYFijfO +zZwuJ7N8/ywE4ouoBB1mge2Px4jE+IftVCa/AWTLfTkGxddtpXKeStH3nnCxEiszms5 Mk/PYpKNrlCcpXnH8S6YTBEBQ45aUHL7iD1rVi1Nxza3mYfxi0l7YLOFbJZSRdBmA5Zp 9jug== 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:mime-version :content-transfer-encoding; bh=E264ER/0qOw955RgC9Lbu6scgSqBy/HNaAzmWqDshh8=; b=hGOqcLlUBspb1/veM1uSX0dI9IBIn/CM2h2N5i7ABtuK7iR6iB02Hjl73WhGdEjs1X S5L9b8j4sTKUSLTYMpyuXGrYuj3C5FO1akT2lY7tiXrUoPuLtx4+um/vQJ1tEfT7VH0w HaJAkdJqBEO651q1Ar4qYunH1HSnYGO8Oj/gA5o1cr77QUeEf4iB1lmRpZWrrZsApqmt Nja/EKbdrAwWLVmW+joF5JHaN7zUhrJfUY2p4nkl907TxSqiFf9XSczl4VRvXI4FyqBc zXd33B6+wlC4TRAJQxIsIZ6TgsmycmGhUREQTLDfir4uXj+kK/5mXbvZ+LL5W1s1Udtj p9oQ== X-Gm-Message-State: APjAAAWPXIR/P4gjlwNJGNqxDQFDOhGV9eiXQUC3GegSOUAhwCUtXBtt Iv+gEgth4+aRb4uitkAKkkc= X-Google-Smtp-Source: APXvYqzoNS6Jmxd03akK30N8Q/ylVMot22aJcCL4uy2fkFx3l3dFZVCEGNIIP4liSQxO8L5UvGhNFw== X-Received: by 2002:a63:2f44:: with SMTP id v65mr46788233pgv.185.1563455785645; Thu, 18 Jul 2019 06:16:25 -0700 (PDT) Received: from suzukaze.ipads-lab.se.sjtu.edu.cn ([202.120.40.82]) by smtp.gmail.com with ESMTPSA id j12sm17324439pff.4.2019.07.18.06.16.22 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 18 Jul 2019 06:16:24 -0700 (PDT) From: Chuhong Yuan Cc: Tom Lendacky , Gary Hook , Herbert Xu , "David S . Miller" , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, Chuhong Yuan Subject: [PATCH] crypto: ccp - Replace dma_pool_alloc + memset with dma_pool_zalloc Date: Thu, 18 Jul 2019 21:16:09 +0800 Message-Id: <20190718131609.10974-1-hslester96@gmail.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Use dma_pool_zalloc instead of using dma_pool_alloc to allocate memory and then zeroing it with memset 0. This simplifies the code. Signed-off-by: Chuhong Yuan Acked-by: Gary R Hook --- drivers/crypto/ccp/ccp-ops.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/crypto/ccp/ccp-ops.c b/drivers/crypto/ccp/ccp-ops.c index 866b2e05ca77..03797c42b336 100644 --- a/drivers/crypto/ccp/ccp-ops.c +++ b/drivers/crypto/ccp/ccp-ops.c @@ -150,14 +150,13 @@ static int ccp_init_dm_workarea(struct ccp_dm_workarea *wa, if (len <= CCP_DMAPOOL_MAX_SIZE) { wa->dma_pool = cmd_q->dma_pool; - wa->address = dma_pool_alloc(wa->dma_pool, GFP_KERNEL, + wa->address = dma_pool_zalloc(wa->dma_pool, GFP_KERNEL, &wa->dma.address); if (!wa->address) return -ENOMEM; wa->dma.length = CCP_DMAPOOL_MAX_SIZE; - memset(wa->address, 0, CCP_DMAPOOL_MAX_SIZE); } else { wa->address = kzalloc(len, GFP_KERNEL); if (!wa->address)