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Wed, 2 Jul 2025 10:26:49 -0700 From: Dragos Tatulea To: , , Jens Axboe CC: Dragos Tatulea , Saeed Mahameed , , , , Subject: [RFC net-next 2/4] io_uring/zcrx: Use the new netdev_get_dma_dev() API Date: Wed, 2 Jul 2025 20:24:24 +0300 Message-ID: <20250702172433.1738947-3-dtatulea@nvidia.com> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250702172433.1738947-1-dtatulea@nvidia.com> References: <20250702172433.1738947-1-dtatulea@nvidia.com> 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: MWH0EPF000971E5:EE_|IA0PPF0C93AC97B:EE_ X-MS-Office365-Filtering-Correlation-Id: b371239b-b38a-4588-d2aa-08ddb98dac90 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|36860700013|376014|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?uH4Jt1kRV+c6JiOwtpDvd0HsZgFlWKYyAMEzGAFLqCwQOPjn8qGVo0MH11pT?= =?us-ascii?Q?/jjyJHEaqViXUwo4gwbOAfkR4ZK1zGT6ngv7NoGc0bOByqj9SYJM8OrZB6x8?= =?us-ascii?Q?EC6AQYaYcupIAwcNgI/rfEFKGrbBul/Vh/tw/4xYvTfqTJmiwTLaa76BefUJ?= =?us-ascii?Q?sRx9/R/vJaVtaZo3Gn6GiymuvNYoLfyy/df8kKA0Z7NYUTU9XE+4YV/LG23f?= =?us-ascii?Q?6rPn+eW2fNE2ShrDb0bfEIslp94fRjizkue8aVadyX7Zx0DO5jHkkBi5HgxH?= =?us-ascii?Q?aZ77oiPeuKWpIEIEQR8Bs+RPpX/ip63SV9gfrdRl8p1G/nCuvXqrxiTezRDU?= =?us-ascii?Q?HF3s156v34Rn3K7jvl0Ipiwqf9MeWehXBU2Sxf2XIUTl2dHBDKLIbLm8IGCn?= =?us-ascii?Q?ylCo+u7Dz3L6JcKrSE0tGuvTFcVmrKw5zp6NJGEMy8uzALQxH5p2FwmN1qjx?= =?us-ascii?Q?nW6VcZIpfVrZXEac9zkRXvodBeBrV/yShoGJfTqEcJdacSinzJ3cWBi/LpVl?= =?us-ascii?Q?j+FizVoGQLdR/x1xoBdvlOSGa9LLIE2wPhfE/nLuLIx+Rie9wy72TDfXKY9b?= =?us-ascii?Q?Wx4yyYUIqDzStIbhT1X719sikFVXBgR8pbWj2rAMQL7jUxOJpuNLtkoLg7mb?= =?us-ascii?Q?soYBN1wsJcA7J+YlQRc/xyQfnbeXv+5R7FbyFi9ESWmNo/+Z3mytTLSv4y2a?= =?us-ascii?Q?qVf2Uly8hnN5eye33YzQ/Rt7bMRZ4wjmMMrDk5U7JQtE6LTOEF6DBJYA43u0?= =?us-ascii?Q?WQmt8dFyxX/CsymlxUCIM5zg98lK4jPBm45os28YbFk94DACyERGOd8r2sgB?= =?us-ascii?Q?hrZTLLq8ya2K5HoNbpKx6uyQk17NPw67+ZW7Ugf16cxBf2SIdij3ux8yqT2Q?= =?us-ascii?Q?YCH8qBrrZ2w5kzcNG40p0d0p/sjtwU2cpRAR3Z1ugVrDuBvKVCuxS1BOoGL3?= =?us-ascii?Q?g1bgYWW/sOPQ6MlQMrZCPcJD/3qxc9d6mBRNa9blnXMONiV/x/TCcdHS8gmB?= =?us-ascii?Q?Cz/5UF5zjEQqIWoBUHb6mffqtNfA6ILHQwnD+T2s6PSlkR+sd+fVRAD5TRoH?= =?us-ascii?Q?3Kfcn+zFClVPIIvRxhmM4ivmdxuMNKgF/wzbg8CKSO7CJyFbf/HPgNh9Mc8q?= =?us-ascii?Q?WsS4iVn8NrtfcvnseqPtePaT5CsKH2epJAbV1acBzrn8WZ1P93tggV9CWBwO?= =?us-ascii?Q?UxMD1rhn2qSSGYDLUXepb+ujs56h/ZerICsfN/Gt01Ys6OGYmVvFziwgtXtp?= =?us-ascii?Q?He8zfq8aeW6DyiAdqSvBCT0CaDJBGk0vJ6X6jFcl0XyQZvrBMeEVVUCXfZ0C?= =?us-ascii?Q?V6Wc4BJiRdUHM4EqHA9f2EXwS4akjF/OF7s5HQdcS5/as/6TfUIkl+MnQIOi?= =?us-ascii?Q?2sZu5O2GbjTmCDlTKUKXBMsHk4AlydSTx/k7jCV6WIAVb9Iih35BuFiFov7Y?= =?us-ascii?Q?B2HMzF9BvitDNwODYQ58q016gF5PSiRy7EOYORVJcohLgbcNCYO0rtxNeKnz?= =?us-ascii?Q?PTekSJWG187nojHRBNF9eFEy/QsHxbg7/uYI?= 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)(36860700013)(376014)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Jul 2025 17:27:09.1784 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b371239b-b38a-4588-d2aa-08ddb98dac90 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: MWH0EPF000971E5.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PPF0C93AC97B Content-Type: text/plain; charset="utf-8" Using the new DMA dev helper API, there will be an early failure if the device does not support DMA. Signed-off-by: Dragos Tatulea --- io_uring/zcrx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c index 797247a34cb7..93462e5b2207 100644 --- a/io_uring/zcrx.c +++ b/io_uring/zcrx.c @@ -584,7 +584,7 @@ int io_register_zcrx_ifq(struct io_ring_ctx *ctx, goto err; } =20 - ifq->dev =3D ifq->netdev->dev.parent; + ifq->dev =3D netdev_get_dma_dev(ifq->netdev); if (!ifq->dev) { ret =3D -EOPNOTSUPP; goto err; --=20 2.50.0