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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C46A4C5CFCF for ; Fri, 14 Aug 2026 16:15:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:MIME-Version:In-Reply-To: Content-Type:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=XI9+EGkuGODUHnoPhTZyUJtRwVkpUWiqN+luTTD5pBY=; b=KyesQ1ztZ1KVCT0HI6E+UwamZR pax82w9bbeTlJsR2074acuKlBNR7vsII7Oy+MLCfGtzX40NMr/y0NAzu2gqtgmRitRcANxmlFfsX5 N++H39yOF2E9oefMQtQ1Sq/sbr4lPvMkBOuUo0wq2BerIqPr8kztKIWqZbnmovz8m49crflboaO71 F8q4i5ToKO9epnFANMWIELWfg+u57wRogkK8UzAWL0Xef924mOvDCpd/09I+OvBRif3pdlpqXij2y HlYJMc8Isuo+kTx0cVIWCwtrYhz6yNUnfhLKLUnXbJCvrGATKhuow2tpYRNs/ocb15NfgWI21AS+z hzsU15ug==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wuuZO-00000002uQF-1olO; Fri, 14 Aug 2026 16:15:46 +0000 Received: from mail-northeuropeazon11012068.outbound.protection.outlook.com ([52.101.66.68] helo=DUZPR83CU001.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wuuZM-00000002uOr-2Ehv; Fri, 14 Aug 2026 16:15:45 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=dMwf73WRT2o6vvMyS57Cn5DD1RsV7G97PIMWi6ofHv5nazAr59Vcqzxr7r0tFky38v+14gdk6qbSE0RxNSQu24VFq30EYE7CT+eEj+x/qacKf8mDpu2PmEwhg7BQHgKfKYPl8K6Sjnb/V+bXTJ1q/ulPSF8u51meIa91dVZgLqfvyMFxdAW2JTeD/tIXxnxGfzlPt83qytoT8h61hSTBifkmbMUtYRpWXsnvAAZsmRMy17i3UwqL9s3N1DNnsBJgXamQl+K9unj9eBL4AQj4GPOBJd4YbD4rdhpgi7Vx3/N0pxfE8t7JnYF+0VdhB7gV/4erD8kbjdP4/4XckfCLWw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=XI9+EGkuGODUHnoPhTZyUJtRwVkpUWiqN+luTTD5pBY=; b=Kmznjg5WciNQfJ6gg4Ef5iEc3Lq2wt3M4JkqMedEHaXAa+VNUYkg0+S8aJNqSCxG24UROBZpLZJU/e4nchpFQc4F8iN+FCleWjL1Gcdi5ls+QGgPzS4tIa3+jh92JDACd+yB8qE8oYxYJRFHbjLhrZSw3eNGWnBy4DgL5wLNKqbWeLmk+C7fO9E/8Y6GuMbWuVuAr/7sJzXKmnbWNk451q27IVeUbXn7Phr84IDAPgUQawwdftZp+tXcP3cIqk8lP0yYGrcafCzYbUqwasabnULd7ez5cFfDZkVcn1DOm7Mm4E/qp3eksNxz28hAjo9TgZM7UQFOt39s2VWBlg3MZw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oss.nxp.com; dmarc=pass action=none header.from=oss.nxp.com; dkim=pass header.d=oss.nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=NXP1.onmicrosoft.com; s=selector1-NXP1-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=XI9+EGkuGODUHnoPhTZyUJtRwVkpUWiqN+luTTD5pBY=; b=Tpv6KW56mf8SQazu3qrswyx8wJ5teGEyR+GvbmKcC8WidgGa9A6/VRccIGbmEQatLfzJRwTkB4B6VVFduuWXWallE23Ds4wAxnGmRYFgri9c6aE7xwxAvHQrhsHX8JJQfKA0MNfpyvI81L2EXgl2NUNtQGvesSQyBELl/+8D1FXc2dwOcRQ1AOHkbK3bfuRj/92gNbZNEDIcy1DMsxHXJyCQ9ErPb1JZt0f+tFH+ZjnlaafND79Cf/EuRexZ0uWp2X6+0glbT70qW5rnXt9n3GE35wyYeYZt2TwAXjkS0O+bznQMukCi215w+C3WK2s3wwD2Y0HzAz/mTJmKizXojw== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=oss.nxp.com; Received: from DU4PR04MB11791.eurprd04.prod.outlook.com (2603:10a6:10:623::11) by DU2PR04MB8808.eurprd04.prod.outlook.com (2603:10a6:10:2e3::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.315.15; Fri, 14 Aug 2026 16:15:38 +0000 Received: from DU4PR04MB11791.eurprd04.prod.outlook.com ([fe80::11ca:6b74:3234:d7de]) by DU4PR04MB11791.eurprd04.prod.outlook.com ([fe80::11ca:6b74:3234:d7de%5]) with mapi id 15.21.0315.014; Fri, 14 Aug 2026 16:15:38 +0000 Date: Fri, 14 Aug 2026 11:15:24 -0500 From: Frank Li To: Andy Shevchenko Cc: Jacky Huang , Shan-Chun Hung , Vinod Koul , Frank Li , Paul Cercueil , Eugeniy Paltsev , Binbin Zhou , Patrice Chotard , =?iso-8859-1?Q?Am=E9lie?= Delaunay , Maxime Coquelin , Alexandre Torgue , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Thierry Reding , Jonathan Hunter , Ludovic Desroches , Viresh Kumar , Keguang Zhang , Andreas =?iso-8859-1?Q?F=E4rber?= , Manivannan Sadhasivam , Daniel Mack , Haojian Zhuang , Robert Jarzmik , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Kelvin Cao , Logan Gunthorpe , Laxman Dewangan , Vignesh Raghavendra , linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-trace-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, linux-actions@lists.infradead.org, linux-sunxi@lists.linux.dev, imx@lists.linux.dev, Frank Li Subject: Re: [PATCH 1/2] dmaengine: use dma_chan_name() helper to get per-channel device name Message-ID: References: <20260812-dma-chan_dev-rename-v1-0-a67131f7d5c2@nxp.com> <20260812-dma-chan_dev-rename-v1-1-a67131f7d5c2@nxp.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-ClientProxiedBy: SA1PR02CA0021.namprd02.prod.outlook.com (2603:10b6:806:2cf::20) To GV2PR04MB11799.eurprd04.prod.outlook.com (2603:10a6:150:2cf::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DU4PR04MB11791:EE_|DU2PR04MB8808:EE_ X-MS-Office365-Filtering-Correlation-Id: ebf17e81-b88a-477f-fec7-08defa1f46cc X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|1800799024|366016|23010399003|19092799006|56012099006|10067099003|4143699003|11063799006|18002099003|22082099003|41080700001; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DU4PR04MB11791.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(7416014)(376014)(1800799024)(366016)(23010399003)(19092799006)(56012099006)(10067099003)(4143699003)(11063799006)(18002099003)(22082099003)(41080700001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?8JV9LihFf7dDvzzMRhpOTraxqIZd6jsFiEncjaJPBN+PqTho9Ovdnw3RjtJk?= =?us-ascii?Q?5w8HLZZeOLGEQZn+2p/cgF6osl36VLtq0SOXcS4Lv6RJ6zZ/Qs/oGkZcdK+H?= =?us-ascii?Q?PkrxOzpehWrWex2K2Ib2YcPVDo58rGaGCMuvy/GCjU160Fi7oTjRzbrfxHpR?= =?us-ascii?Q?TZ+f9kUgqgm2Bztw98HJeWjEiFtT3YlGQUJ1Bapk7/V7yYbIqFqL3ef76/kV?= =?us-ascii?Q?XBOCKsD4+X9+zXuLcAafxfMhvQWyLv7Qvxfyl8JLNjIjQmUszYef21kYb5wp?= =?us-ascii?Q?IKmPxxWek+fQyvYuap7NjWLCutxvKLY+ipSCV96oM5aHMdIIh7cDmS6xktMU?= =?us-ascii?Q?3y55sSko6Ex+1stCoB2QcBUQFXkVUjjkwn4jXVZ49jqsRq1IA/ECyzr5ej+I?= =?us-ascii?Q?CYHbn4EMGGf891MiFRnSkcp4A2GPUk2AjeAVOTwb06R8ida9fEcG19UaeXDl?= =?us-ascii?Q?adrFbQwA3BUSLHb/c7gqPlOGOrugpUBXc2+bwjn1AtyIqJN8Ne4kAgMNy1c5?= =?us-ascii?Q?WSu8EnjfPNOI/CmeGFub7CQ46FzrFdhRWl72Gv5abn0DttSAdeg98bMHgT2I?= =?us-ascii?Q?RLXROh/O0b8w6h0ALyeGc2s/imAGjhhK2IN9/kQabmgOtxk7UvXJOhio+pwc?= =?us-ascii?Q?wg2JATpT3jRuiXYYW894GRxNy1QeJtM0CG9do1ut4fAj4YEApqtHiB5SfptO?= =?us-ascii?Q?wD7rwOUBIv7OyabyTChrljrEw+Vrc4oMnvaujPNXzMeP8/VizUvrh7ekyLfc?= =?us-ascii?Q?+nbsPd7oKqV3hsgjjA/BEU8wwA0ezTA85IkQB4PS4T8pqkxhu3h3knKknnak?= =?us-ascii?Q?xw3Kj/YrXTfnasAEdWQbHeVgYN88My4H489pRLQoFovhp2J1vQ6aRRLcrmfW?= =?us-ascii?Q?ZVAuzhe5VUG0V5YTGfWKRD5r+xowhr0Akzc88XNHII4w9B7MKFdteZBxSqPb?= =?us-ascii?Q?w8+5cy5v7q9tCtT+rblgVCEUOaO0Qsw7BWxVMmpNK9awadrXR4J1tf7RxTB2?= =?us-ascii?Q?brrNHeSzTbsLx0VJgypzj+IIahXhNGoxgs6JOjt86nViPfqHG9GyEIUDMTc5?= =?us-ascii?Q?YWpjdMrZdG0fh2ZRiKBgwKmpLBIOzoWXjED4V/c1Bo6bZBFsYZfwuH88QZWz?= =?us-ascii?Q?XD+rEo3TkaXvIzGQeBOMrk2+M9hYrVVj89hPBPFf787j8e7oR2Q2zxChQVEC?= =?us-ascii?Q?SmHUdEQLCfY43idHMd6lctTUZMMslVKQogNvVJG6gf4MnF0TdGmi6UCMna4K?= =?us-ascii?Q?fiRkietoL9E0wrRed+H6rlhKEM6qy8dGgODdzUzXgtE9ht3qpsUXarB37fFL?= =?us-ascii?Q?6ALIBddzW6IG8iA/aG7F6yR6ZPp0eXco21zmIwHi8LcbeMdCNsz2JxhJRHhX?= =?us-ascii?Q?AqQbyt+Ek7pJbqXeq10Bd0cxaTQ2v272F0b3tSaHHoJI3zSJE3R0anqc/ME4?= =?us-ascii?Q?ZKMK0WRJR3kb4Fd+U9bI396aj350Rk0HDt9/1/UZcMLN/alIfibFrW3gaYkL?= =?us-ascii?Q?bHctrfmumvlz9vGCyE5mjMbjq+IU+OvNrPFXDv9updsliQUahAelv6qsdyK7?= =?us-ascii?Q?P32nwkGvJN3Wj2bOp7Tt4MvvtUl+++B9pQjJz3u1wFDIazNJ0NM0ENJMqzeX?= =?us-ascii?Q?yS0cLy+IbxLVY6rS592Nz4WptD8PSNjHkrWfBgwgth2fYuVxgzXg/6DdlfIi?= =?us-ascii?Q?fbXrGeIKsVwilPKm7n4gpRnM8f6hOH2tU2TnMQrJewBFpQQJhUgKwm8fczZZ?= =?us-ascii?Q?YgvlTzdjhTu+/YLO5F1OQVFbClw6S831T9Xk6dGaP35Vuc0O2q2j?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: ebf17e81-b88a-477f-fec7-08defa1f46cc X-MS-Exchange-CrossTenant-AuthSource: GV2PR04MB11799.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Aug 2026 16:15:38.0159 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: CVtX7IctrHaTzlLiVYjqvwy5KRqaGlLp5Fi0qzjYbXlttoLmIvkYYWcaAOezIA+VrwK1dBkGqnamzWqj9p9+2FYvdWA7LrsJ7gstbGrcLXcMtPwXOJU+UpSAz2VVoq5a X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU2PR04MB8808 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260814_091544_586479_FA2C03D8 X-CRM114-Status: GOOD ( 14.67 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Aug 14, 2026 at 11:03:48AM +0300, Andy Shevchenko wrote: > On Wed, Aug 12, 2026 at 05:24:08PM -0400, Frank.Li@oss.nxp.com wrote: > > > Use the existing dma_chan_name() helper to obtain the per-channel device > > name instead of open-coding: dev_name(chan->dev->device) / > > dev_name(chan2dev()) > > > > Simplify the code and improve consistency. > > > > No functional change intended. > > ... > > > ret = devm_request_irq(dev, lchan->irq, loongson2_cmc_dma_chan_irq, IRQF_SHARED, > > - dev_name(chan2dev(lchan)), lchan); > > + dma_chan_name(&lchan->vchan.chan), lchan); > > Depending on the amount of users (and I expect there is a number), I would > expect specific API for virt-dma case. Make sense, I consider it before. Let's wait for while for patch2's comments Frank > > > if (ret) > > return ret; > > -- > With Best Regards, > Andy Shevchenko > >