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Fri, 13 Jun 2025 11:51:34 -0700 From: David Thompson To: , , , , , , CC: , , David Thompson , Asmaa Mnebhi Subject: [PATCH net v1] mlxbf_gige: return EPROBE_DEFER if PHY IRQ is not available Date: Fri, 13 Jun 2025 18:51:29 +0000 Message-ID: <20250613185129.1998882-1-davthompson@nvidia.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: AnonymousSubmission X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF000252A0:EE_|MN0PR12MB6102:EE_ X-MS-Office365-Filtering-Correlation-Id: cacdc8ab-1690-4fea-540d-08ddaaab5ff4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|1800799024|36860700013|376014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?6707V0to7zpNEloFlgR4EoHpl950Aefmk4h/tdKFI+J5j7u8ZaZhgBYOmDhB?= =?us-ascii?Q?8K/q1de8VRirZChEUGKBmdUZ7r1GL9zMkkHFJa07Sj9iUgvDIflO85NxB9gM?= =?us-ascii?Q?/C0oEIWl/H8Q4Mgdq+fbQrBOoSCPfgZRimLwr4IQr5j4s1XUthm2e9+0Z8o8?= =?us-ascii?Q?t3rDMxIDem1NsER6trwiMqFwLMyKBKRQJvYQC3W+xZjAYU6J0k3UrdMhVdk/?= =?us-ascii?Q?b+aHNWiZWSM4Yjd7xNYhs9yGUW2zx8gOPO3gahVfmTHtKDxymxTwmOR36KOt?= =?us-ascii?Q?SolCQmLS6nNM+1FEwfNPCNmntFgNyIB9D48pyt3QkAITIQCqR7wsutLv/gCb?= =?us-ascii?Q?L38cOJYvN0MwJ0OTq80+ZJzq/Y0bbtlnEqUqKDVuJMycBYQRZFb+ne0pxdB9?= =?us-ascii?Q?Qks+l4vQaVy/DscF55LOQfLMMB/Si6JJnZDrmNBKDosRBM+eT0GD3WKWcQwy?= =?us-ascii?Q?j+Q9WWjTpO8RPzi3KxY3+LaHc0smIV3OKtxcsaQMxuoTnRtV48RJxZHEvBRG?= =?us-ascii?Q?3ZNUYGB4lixmpgUuAlgoZdRFtC4y5V2g4U78yfnlqWEdZ30LyylL//+9fBeU?= =?us-ascii?Q?7+LL3HunmdjxYVFatpUZh3J1LWWubIpE4MlZBbP8atG9izA51fG4UrE424fi?= =?us-ascii?Q?WmCyK5UMjXPnP3vtgTlsLoOlUHdfJZwnulykNQNov2Ax4sBfGita1Ht42LBD?= =?us-ascii?Q?Galq6NQ3vtPGFBfofIhk03KU/VfQf4BrjaZMN8T64I2VzD7KNpYfTFZiiU2i?= =?us-ascii?Q?N/tTybC1pS7Kp/T6keRJb2ia5CY7DiTYkjLaCTEAlNhDixDukEN6qTV5uvbi?= =?us-ascii?Q?qylUo9viSEEY67qU3Qz1NMT4708hMVENI0bmXyTc2+S2Eydad7Dt7ImVppZp?= =?us-ascii?Q?4s34QxfgJ0LXqFNNBVfNuomThnSOSY/88z+RTrO8uvwzdY7kuKuUPC/jEa7g?= =?us-ascii?Q?RWffzGkrBXlU4uHE8d9VkCOwfQ1rTRQNSCYb562+ZMzMEH47fM170g5Map6U?= =?us-ascii?Q?bhFqEukfDt/+vDtF605GwrNINPogq75HTNfTIV4Xo6KsSjHpdAeAlobvnEHL?= =?us-ascii?Q?QYanV63Ale2HGtj09apOXht510MU6mnSQbmqCXOyQ5VoO6Om/LZKG2+SZ//u?= =?us-ascii?Q?QUdZnw7sj4eN9BkjwEJcoNBjS3eBN6kua7ZY60WpGnTaqibT8rcziwbfF/Vs?= =?us-ascii?Q?Cp1KjDwdUo1zPenlx3d+j6DWxJom6zQ1pEyVGR12OH8HwY1Vz2Liz9EbZDrw?= =?us-ascii?Q?/wQVkMQ6OZ4MrY9WergND2oRHO0O6Ar3PEWOT8UvQz4RGCIZfx5LL57UmEVr?= =?us-ascii?Q?WR7YOfQIJC8VBjcVsbl9pFfxwyKQEIHfyFmFd2r4mMlbWfJuEay3kkv2JKi+?= =?us-ascii?Q?fmLlvIVL7Qr9yfsPKaeAHHrif2BzDeZjp13Dq4kcGHruJJ3XuWdMDcyM9SiP?= =?us-ascii?Q?2Bdd65z6BsLlnzT2BRtIEK1tkUJ6djfN947JAJyoEYEv0PxZxeadw1tc0kYw?= =?us-ascii?Q?AFYJb7RuVkQbh1+CycVY5nwaDP226MH3yyfN?= 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)(82310400026)(1800799024)(36860700013)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Jun 2025 18:51:58.1290 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: cacdc8ab-1690-4fea-540d-08ddaaab5ff4 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: SN1PEPF000252A0.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR12MB6102 Content-Type: text/plain; charset="utf-8" The message "Error getting PHY irq. Use polling instead" is emitted when the mlxbf_gige driver is loaded by the kernel before the associated gpio-mlxbf driver, and thus the call to get the PHY IRQ fails since it is not yet available. The driver probe() must return -EPROBE_DEFER if acpi_dev_gpio_irq_get_by() returns the same. Signed-off-by: David Thompson Reviewed-by: Asmaa Mnebhi --- drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c b/d= rivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c index fb2e5b844c15..d76d7a945899 100644 --- a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c +++ b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c @@ -447,8 +447,10 @@ static int mlxbf_gige_probe(struct platform_device *pd= ev) priv->llu_plu_irq =3D platform_get_irq(pdev, MLXBF_GIGE_LLU_PLU_INTR_IDX); =20 phy_irq =3D acpi_dev_gpio_irq_get_by(ACPI_COMPANION(&pdev->dev), "phy", 0= ); - if (phy_irq < 0) { - dev_err(&pdev->dev, "Error getting PHY irq. Use polling instead"); + if (phy_irq =3D=3D -EPROBE_DEFER) { + err =3D -EPROBE_DEFER; + goto out; + } else if (phy_irq < 0) { phy_irq =3D PHY_POLL; } =20 --=20 2.43.2