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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, 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 CCD0BC38A2A for ; Fri, 8 May 2020 14:13:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B88C724956 for ; Fri, 8 May 2020 14:13:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727958AbgEHONN (ORCPT ); Fri, 8 May 2020 10:13:13 -0400 Received: from mx0a-00128a01.pphosted.com ([148.163.135.77]:24884 "EHLO mx0a-00128a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727103AbgEHONL (ORCPT ); Fri, 8 May 2020 10:13:11 -0400 Received: from pps.filterd (m0167088.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 048E4pOO006835; Fri, 8 May 2020 10:13:11 -0400 Received: from nwd2mta3.analog.com ([137.71.173.56]) by mx0a-00128a01.pphosted.com with ESMTP id 30vtef2mak-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 08 May 2020 10:13:11 -0400 Received: from SCSQMBX11.ad.analog.com (scsqmbx11.ad.analog.com [10.77.17.10]) by nwd2mta3.analog.com (8.14.7/8.14.7) with ESMTP id 048ED9SL044954 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=FAIL); Fri, 8 May 2020 10:13:09 -0400 Received: from SCSQMBX11.ad.analog.com (10.77.17.10) by SCSQMBX11.ad.analog.com (10.77.17.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Fri, 8 May 2020 07:13:08 -0700 Received: from zeus.spd.analog.com (10.64.82.11) by SCSQMBX11.ad.analog.com (10.77.17.10) with Microsoft SMTP Server id 15.1.1779.2 via Frontend Transport; Fri, 8 May 2020 07:13:07 -0700 Received: from localhost.localdomain ([10.48.65.12]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 048ED5JZ031800; Fri, 8 May 2020 10:13:06 -0400 From: Alexandru Ardelean To: , CC: , Alexandru Ardelean Subject: [PATCH 2/3] iio: core: simplify alloc alignment code Date: Fri, 8 May 2020 17:13:05 +0300 Message-ID: <20200508141306.17222-2-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200508141306.17222-1-alexandru.ardelean@analog.com> References: <20200508141306.17222-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 Content-Type: text/plain X-ADIRoutedOnPrem: True X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216,18.0.676 definitions=2020-05-08_13:2020-05-08,2020-05-08 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 priorityscore=1501 malwarescore=0 lowpriorityscore=0 suspectscore=0 clxscore=1015 phishscore=0 mlxlogscore=999 adultscore=0 mlxscore=0 bulkscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2005080126 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There was a recent discussion about this code: https://lore.kernel.org/linux-iio/20200322165317.0b1f0674@archlinux/ This looks like a good time to rework this, since any issues about it should pop-up under testing, because the iio_dev is having a bit of an overhaul and stuff being moved to iio_dev_priv. Signed-off-by: Alexandru Ardelean --- drivers/iio/industrialio-core.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index f0888dd84d3d..b924197b5984 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -1521,13 +1521,9 @@ struct iio_dev *iio_device_alloc(int sizeof_priv) struct iio_dev *dev; size_t alloc_size; - alloc_size = sizeof(struct iio_dev_priv); - if (sizeof_priv) { - alloc_size = ALIGN(alloc_size, IIO_ALIGN); - alloc_size += sizeof_priv; - } - /* ensure 32-byte alignment of whole construct ? */ - alloc_size += IIO_ALIGN - 1; + alloc_size = ALIGN(sizeof(struct iio_dev_priv), IIO_ALIGN); + if (sizeof_priv) + alloc_size += ALIGN(sizeof_priv, IIO_ALIGN); iio_dev_priv = kzalloc(alloc_size, GFP_KERNEL); if (!iio_dev_priv) -- 2.17.1