From patchwork Wed Feb 10 10:08:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Ardelean X-Patchwork-Id: 12080419 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 C0E44C433E0 for ; Wed, 10 Feb 2021 10:10:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7A86D64E35 for ; Wed, 10 Feb 2021 10:10:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230111AbhBJKKB (ORCPT ); Wed, 10 Feb 2021 05:10:01 -0500 Received: from mx0a-00128a01.pphosted.com ([148.163.135.77]:56148 "EHLO mx0a-00128a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230392AbhBJKHT (ORCPT ); Wed, 10 Feb 2021 05:07:19 -0500 Received: from pps.filterd (m0167088.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 11AA6Qra022867; Wed, 10 Feb 2021 05:06:26 -0500 Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com with ESMTP id 36hr7qc5xc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 10 Feb 2021 05:06:26 -0500 Received: from SCSQMBX11.ad.analog.com (SCSQMBX11.ad.analog.com [10.77.17.10]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 11AA6LE1035794 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=FAIL); Wed, 10 Feb 2021 05:06:21 -0500 Received: from SCSQCASHYB6.ad.analog.com (10.77.17.132) 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; Wed, 10 Feb 2021 02:06:20 -0800 Received: from SCSQMBX11.ad.analog.com (10.77.17.10) by SCSQCASHYB6.ad.analog.com (10.77.17.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.721.2; Wed, 10 Feb 2021 02:06:19 -0800 Received: from zeus.spd.analog.com (10.66.68.11) by SCSQMBX11.ad.analog.com (10.77.17.10) with Microsoft SMTP Server id 15.1.1779.2 via Frontend Transport; Wed, 10 Feb 2021 02:06:19 -0800 Received: from localhost.localdomain ([10.48.65.12]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 11AA5x0F018045; Wed, 10 Feb 2021 05:06:16 -0500 From: Alexandru Ardelean To: , CC: , , , , , , , Alexandru Ardelean Subject: [PATCH v4 09/17] iio: buffer: dmaengine: obtain buffer object from attribute Date: Wed, 10 Feb 2021 12:08:15 +0200 Message-ID: <20210210100823.46780-10-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210210100823.46780-1-alexandru.ardelean@analog.com> References: <20210210100823.46780-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369,18.0.737 definitions=2021-02-10_03:2021-02-10,2021-02-10 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 lowpriorityscore=0 malwarescore=0 clxscore=1015 spamscore=0 phishscore=0 suspectscore=0 mlxscore=0 bulkscore=0 priorityscore=1501 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2102100098 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org The reference to the IIO buffer object is stored on the attribute object. So we need to unwind it to obtain it. Signed-off-by: Alexandru Ardelean --- drivers/iio/buffer/industrialio-buffer-dmaengine.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/iio/buffer/industrialio-buffer-dmaengine.c b/drivers/iio/buffer/industrialio-buffer-dmaengine.c index b0cb9a35f5cd..1e9e8fdd0719 100644 --- a/drivers/iio/buffer/industrialio-buffer-dmaengine.c +++ b/drivers/iio/buffer/industrialio-buffer-dmaengine.c @@ -133,8 +133,9 @@ static ssize_t iio_dmaengine_buffer_get_length_align(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); + struct iio_buffer *buffer = to_iio_dev_attr(attr)->buffer; struct dmaengine_buffer *dmaengine_buffer = - iio_buffer_to_dmaengine_buffer(indio_dev->buffer); + iio_buffer_to_dmaengine_buffer(buffer); return sprintf(buf, "%zu\n", dmaengine_buffer->align); }