From patchwork Thu Feb 4 08:45:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaud Pouliquen X-Patchwork-Id: 12066583 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=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 AF382C433DB for ; Thu, 4 Feb 2021 08:48:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 68C2A64F58 for ; Thu, 4 Feb 2021 08:48:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234953AbhBDIr4 (ORCPT ); Thu, 4 Feb 2021 03:47:56 -0500 Received: from mx07-00178001.pphosted.com ([185.132.182.106]:2816 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235154AbhBDIrX (ORCPT ); Thu, 4 Feb 2021 03:47:23 -0500 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 1148fvtl005356; Thu, 4 Feb 2021 09:46:37 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=selector1; bh=h8BuLQc6wA4LPMA6U4rmS0YJqMj4AsWKDTNSsFE26UI=; b=FVjfJBxu06qIeUdbnmH1eFNLnbsIgtsNhgpeXSrQMM3mUP4CnK6sfb52VQHWUV0nRLcr KYZqbXM+MAuUukQqtPE0C9wwEHRt5YZ6U6yRjqyXEfh/iHJcLUwXNb+cVmSOo+ReMiJo GMuj1mOuKDiviLFTSkvFmRgixDzpbdqD17Y0UodYbh9rNH9QePQ1VNfjVHz7e9zEc3nf JUEXa/E4mYnKyVQkGZcknAl7MAMrVJivphp2oUHP/rQDLX67Lptn6f/DqHEVIS0TD7ka eKoDJQiJYjIpYZYVQzIA6tg24LfGCaRZl80OtVi/DCOlvYadG3R+BmbhCdAc5kymn6r9 rQ== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 36d0fs5xv1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 04 Feb 2021 09:46:37 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 9A27A100038; Thu, 4 Feb 2021 09:46:36 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag2node3.st.com [10.75.127.6]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 8D6D622AE50; Thu, 4 Feb 2021 09:46:36 +0100 (CET) Received: from localhost (10.75.127.50) by SFHDAG2NODE3.st.com (10.75.127.6) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Thu, 4 Feb 2021 09:46:36 +0100 From: Arnaud Pouliquen To: Bjorn Andersson , Ohad Ben-Cohen , Mathieu Poirier , Andy Gross CC: , , , , Subject: [PATCH v3 12/15] rpmsg: char: introduce __rpmsg_chrdev_create_eptdev function Date: Thu, 4 Feb 2021 09:45:31 +0100 Message-ID: <20210204084534.10516-13-arnaud.pouliquen@foss.st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210204084534.10516-1-arnaud.pouliquen@foss.st.com> References: <20210204084534.10516-1-arnaud.pouliquen@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.50] X-ClientProxiedBy: SFHDAG1NODE2.st.com (10.75.127.2) To SFHDAG2NODE3.st.com (10.75.127.6) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369,18.0.737 definitions=2021-02-04_03:2021-02-04,2021-02-04 signatures=0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Introduce the __rpmsg_chrdev_create_eptdev internal function that returns the rpmsg_eptdev context structure. This patch prepares the introduction of a RPMsg device for the char device. the RPMsg device will need a reference to the context. Signed-off-by: Arnaud Pouliquen --- drivers/rpmsg/rpmsg_char.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/drivers/rpmsg/rpmsg_char.c b/drivers/rpmsg/rpmsg_char.c index 09ae1304837c..66dcb8845d6c 100644 --- a/drivers/rpmsg/rpmsg_char.c +++ b/drivers/rpmsg/rpmsg_char.c @@ -328,8 +328,9 @@ int rpmsg_chrdev_eptdev_destroy(struct device *dev, void *data) } EXPORT_SYMBOL(rpmsg_chrdev_eptdev_destroy); -int rpmsg_chrdev_create_eptdev(struct rpmsg_device *rpdev, struct device *parent, - struct rpmsg_channel_info chinfo) +static struct rpmsg_eptdev *__rpmsg_chrdev_create_eptdev(struct rpmsg_device *rpdev, + struct device *parent, + struct rpmsg_channel_info chinfo) { struct rpmsg_eptdev *eptdev; struct device *dev; @@ -337,7 +338,7 @@ int rpmsg_chrdev_create_eptdev(struct rpmsg_device *rpdev, struct device *parent eptdev = kzalloc(sizeof(*eptdev), GFP_KERNEL); if (!eptdev) - return -ENOMEM; + return ERR_PTR(-ENOMEM); dev = &eptdev->dev; eptdev->rpdev = rpdev; @@ -381,7 +382,7 @@ int rpmsg_chrdev_create_eptdev(struct rpmsg_device *rpdev, struct device *parent put_device(dev); } - return ret; + return eptdev; free_ept_ida: ida_simple_remove(&rpmsg_ept_ida, dev->id); @@ -391,7 +392,19 @@ int rpmsg_chrdev_create_eptdev(struct rpmsg_device *rpdev, struct device *parent put_device(dev); kfree(eptdev); - return ret; + return ERR_PTR(ret); +} + +int rpmsg_chrdev_create_eptdev(struct rpmsg_device *rpdev, struct device *parent, + struct rpmsg_channel_info chinfo) +{ + struct rpmsg_eptdev *eptdev; + + eptdev = __rpmsg_chrdev_create_eptdev(rpdev, &rpdev->dev, chinfo); + if (IS_ERR(eptdev)) + return PTR_ERR(eptdev); + + return 0; } EXPORT_SYMBOL(rpmsg_chrdev_create_eptdev);