From patchwork Wed Jul 31 21:52:49 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Denis CIOCCA X-Patchwork-Id: 11069615 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 06B05746 for ; Wed, 31 Jul 2019 21:53:14 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EB9E026E47 for ; Wed, 31 Jul 2019 21:53:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E001327CF3; Wed, 31 Jul 2019 21:53:13 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI 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 CC37826E47 for ; Wed, 31 Jul 2019 21:53:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731045AbfGaVxM (ORCPT ); Wed, 31 Jul 2019 17:53:12 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:41753 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727987AbfGaVxM (ORCPT ); Wed, 31 Jul 2019 17:53:12 -0400 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x6VLq97h016081; Wed, 31 Jul 2019 23:53:05 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=STMicroelectronics; bh=2FZ7C50rEs7CbDlj6YokX6ynUj5Qt+oTcPuDxTUEtVM=; b=GTZ8ebp2QgfwuDp5+ZlJgfJ0BamgW6u9OwhfW80D+FBFZybUfKXuDsL5jXLOxexE/3sA nHjWuPgYfWyP58ubH5L3xJzJEqAdiying4MtytplFg0OzNVs2uvj2CDdvWtZlTHnpTSo ELbGLFp0RKidxqyWwRqf2sTP/pyQ9A3ChYg06BJdyyXdZXujiXB5UzudFdgbtlCXj5CK 01Sld4p9zdmJp+cSP1fK1MdCt4ILypzwA5Yyph+IpCN7PFufvaoXBesueP0q+K64havz BMOrXWBkXhCQHxzwUOVPEUad6+6AC6R/7OvSDb/f9k5cSGbYU090UBfNF7BX2tywK2lN Uw== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2u0ccwtcy5-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Wed, 31 Jul 2019 23:53:05 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 9B13638; Wed, 31 Jul 2019 21:53:04 +0000 (GMT) Received: from Webmail-eu.st.com (sfhdag1node1.st.com [10.75.127.1]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 915B2777ED; Wed, 31 Jul 2019 23:53:04 +0200 (CEST) Received: from localhost (10.75.127.45) by SFHDAG1NODE1.st.com (10.75.127.1) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 31 Jul 2019 23:53:03 +0200 From: Denis Ciocca To: , , CC: Denis Ciocca Subject: [PATCH 4/5] iio:magn: do not allocate/de-allocate buffer here but link setup_ops to st_sensors_buffer Date: Wed, 31 Jul 2019 14:52:49 -0700 Message-ID: <20190731215250.16403-5-denis.ciocca@st.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190731215250.16403-1-denis.ciocca@st.com> References: <20190731215250.16403-1-denis.ciocca@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.45] X-ClientProxiedBy: SFHDAG7NODE3.st.com (10.75.127.21) To SFHDAG1NODE1.st.com (10.75.127.1) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-07-31_11:,, signatures=0 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Setup buffer_setup_ops pre/post enable/disable to use st_sensor_buffers functions for memory allocation/de-allocation. Signed-off-by: Denis Ciocca Reviewed-by: Alexandru Ardelean --- drivers/iio/magnetometer/st_magn_buffer.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/drivers/iio/magnetometer/st_magn_buffer.c b/drivers/iio/magnetometer/st_magn_buffer.c index 658d627dad8e..592972f6450e 100644 --- a/drivers/iio/magnetometer/st_magn_buffer.c +++ b/drivers/iio/magnetometer/st_magn_buffer.c @@ -31,17 +31,11 @@ int st_magn_trig_set_state(struct iio_trigger *trig, bool state) static int st_magn_buffer_postenable(struct iio_dev *indio_dev) { - struct st_sensor_data *mdata = iio_priv(indio_dev); int err; - mdata->buffer_data = kmalloc(indio_dev->scan_bytes, - GFP_DMA | GFP_KERNEL); - if (!mdata->buffer_data) - return -ENOMEM; - err = iio_triggered_buffer_postenable(indio_dev); if (err < 0) - goto st_magn_free_buffer; + return err; err = st_sensors_set_enable(indio_dev, true); if (err < 0) @@ -51,14 +45,11 @@ static int st_magn_buffer_postenable(struct iio_dev *indio_dev) st_magn_buffer_predisable: iio_triggered_buffer_predisable(indio_dev); -st_magn_free_buffer: - kfree(mdata->buffer_data); return err; } static int st_magn_buffer_predisable(struct iio_dev *indio_dev) { - struct st_sensor_data *mdata = iio_priv(indio_dev); int err, err2; err = st_sensors_set_enable(indio_dev, false); @@ -67,13 +58,14 @@ static int st_magn_buffer_predisable(struct iio_dev *indio_dev) if (!err) err = err2; - kfree(mdata->buffer_data); return err; } static const struct iio_buffer_setup_ops st_magn_buffer_setup_ops = { + .preenable = &st_sensors_buffer_preenable, .postenable = &st_magn_buffer_postenable, .predisable = &st_magn_buffer_predisable, + .postdisable = &st_sensors_buffer_postdisable, }; int st_magn_allocate_ring(struct iio_dev *indio_dev)