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Wed, 22 Apr 2026 21:29:37 -0700 Date: Wed, 22 Apr 2026 21:29:35 -0700 From: Nicolin Chen To: Baolu Lu CC: Will Deacon , Robin Murphy , "Joerg Roedel" , Bjorn Helgaas , "Jason Gunthorpe" , "Rafael J . Wysocki" , "Len Brown" , Pranjal Shrivastava , "Mostafa Saleh" , Kevin Tian , , , , , , , Shuai Xue Subject: Re: [PATCH v3 01/11] PCI: Propagate FLR return values to callers Message-ID: References: <8bc784e505dc04ca81582307c4a70babbf58eca0.1776381841.git.nicolinc@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF000015C8:EE_|SA1PR12MB7198:EE_ X-MS-Office365-Filtering-Correlation-Id: bc7fb18a-3f6e-4a06-4b5d-08dea0f0f424 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|7416014|376014|36860700016|82310400026|18002099003|56012099003|22082099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(1800799024)(7416014)(376014)(36860700016)(82310400026)(18002099003)(56012099003)(22082099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: cGF+pptuGjS5mhaWo3/YSD54cDWIWND0UQsfvzF5w7jmKHZC7dOO3EnkTDr9G3FHvc97WmOVKmQR2pisi2Ju/y3ORFY383V62X7u5DaUAiDM1CgtIJtBdPuIHg7OvTZatLL6IxoKgavdetZMBdAmXm0I7/zWfCDlnT/YjCLQavKbZ68OCsSlqsK6RPj6AG6uasEtYWGMf1wcTPd+oArxnQc3k56/5kpD22n1gKksPxhfEyzDipjBs1WrW4EGNoi98Ut9QuXqovSE/RyA07HUVC1g7MvmkKSzw3NuUdN4HYvHcJEIylH6y3SUpPOqYs4Ltjy62UUO6GEM1N5c2AsVySDX48akZtLy2ObHW1YikqUe9OjhnYr/yr+P1aV1Du5pe0V8zNkg4tfi3wLqF/gfjN5IyKVZ5pRznhl2pafEKAjXwgq79BLWdh+Rce3cX9+F X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Apr 2026 04:29:48.0580 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: bc7fb18a-3f6e-4a06-4b5d-08dea0f0f424 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SA2PEPF000015C8.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR12MB7198 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260422_212958_849271_3B908C6A X-CRM114-Status: GOOD ( 12.61 ) 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 Wed, Apr 22, 2026 at 02:13:49PM +0800, Baolu Lu wrote: > On 4/17/26 07:28, Nicolin Chen wrote: > > @@ -4060,7 +4061,7 @@ static int reset_chelsio_generic_dev(struct pci_dev *dev, bool probe) > > PCI_MSIX_FLAGS_ENABLE | > > PCI_MSIX_FLAGS_MASKALL); > > - pcie_flr(dev); > > + ret = pcie_flr(dev); > > It makes more sense to return early here on failure. There is no need to > perform the subsequent steps if pcie_flr() fails. Would something like > the following work? [...] > @@ -4060,7 +4061,9 @@ static int reset_chelsio_generic_dev(struct pci_dev > *dev, bool probe) > PCI_MSIX_FLAGS_ENABLE | > PCI_MSIX_FLAGS_MASKALL); > > - pcie_flr(dev); > + ret = pcie_flr(dev); > + if (ret) > + return ret; Yea, I was a bit worried to change the behavior, skipping the rest part. But that's probably the right thing to do. Thanks Nicolin