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Thu, 14 May 2020 09:17:50 -0400 Received: from zeus.spd.analog.com (10.64.82.11) by ASHBMBX9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.1.1779.2 via Frontend Transport; Thu, 14 May 2020 09:17:50 -0400 Received: from localhost.localdomain ([10.48.65.12]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 04EDHUaq017033; Thu, 14 May 2020 09:17:46 -0400 From: Alexandru Ardelean To: , , , Subject: [PATCH v2 7/8] iio: core: simplify alloc alignment code Date: Thu, 14 May 2020 16:17:09 +0300 Message-ID: <20200514131710.84201-8-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200514131710.84201-1-alexandru.ardelean@analog.com> References: <20200514131710.84201-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216, 18.0.676 definitions=2020-05-14_03:2020-05-14, 2020-05-14 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 spamscore=0 cotscore=-2147483648 phishscore=0 priorityscore=1501 adultscore=0 mlxscore=0 malwarescore=0 clxscore=1015 impostorscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005140118 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200514_061759_124721_A7FF27F1 X-CRM114-Status: GOOD ( 13.04 ) X-Spam-Score: -0.7 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [148.163.135.77 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alexandre.belloni@bootlin.com, alexandre.torgue@st.com, ludovic.desroches@microchip.com, ak@it-klinger.de, mcoquelin.stm32@gmail.com, eugen.hristev@microchip.com, Alexandru Ardelean , jic23@kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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 a1b29e0f8fd6..7671d36efae7 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -1514,13 +1514,9 @@ struct iio_dev *iio_device_alloc(int sizeof_priv) struct iio_dev *dev; size_t alloc_size; - alloc_size = sizeof(struct iio_dev_opaque); - 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_opaque), IIO_ALIGN); + if (sizeof_priv) + alloc_size += ALIGN(sizeof_priv, IIO_ALIGN); iio_dev_opaque = kzalloc(alloc_size, GFP_KERNEL); if (!iio_dev_opaque)