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Tue, 15 Sep 2026 10:10:11 -0700 Date: Tue, 15 Sep 2026 10:10:02 -0700 From: Nicolin Chen To: Sasha Levin , CC: Wentao Guan , , , , , , Subject: Re: [PATCH 7.2.y] iommu/arm-smmu-v3: Disable implementations during devm teardown Message-ID: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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: CH2PEPF0000013F:EE_|CHXPR12MB999220:EE_ X-MS-Office365-Filtering-Correlation-Id: fb29d263-7c2e-4046-d0a5-08df134c49b0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700016|23010399003|376014|1800799024|82310400026|11063799006|56012099006|4143699003|10067099003|18002099003|22082099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(36860700016)(23010399003)(376014)(1800799024)(82310400026)(11063799006)(56012099006)(4143699003)(10067099003)(18002099003)(22082099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 9TOQA75yDUSBtKtoo7HzvxsVqA7MZqs2C4k5eFsKweWJjjETDcbmj5ZPR6do4W4FR14U6DsQtF50+7sWQ5u3qv9zCjiSp2lE309QCBtAB/8eg0hXm7GLRAeMQvQnD2PQivamH8m/bBJlFe+2xFgCjLsIXmoiMhMH4SXuxjL6i/QigWW80fWq2nLrk7094ke5YRS1+M1TuYz33DupRF2XpxWzOK3dqJNc7GTG/C4WEQYNkO2kUIa3tBNx6MrHfo6HkhYDP97qTL4hkKPpfNi2ZmQz2H/SbcqW4J+k8p41vdK0mK+z89/PruG2Vq2kBe86oIOVqksokTn2lhU6PbgnGqPWtl/DF9BMZRHq677Pwtv1gh4/aIp2tSNh89OqBoge8lWxkFiG1YB/dEieeuG/VGbhcBGR6VnNNXztGqXWPjDwWlg+XJ5Xvn05wZUb8i4i X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Sep 2026 17:10:48.3865 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: fb29d263-7c2e-4046-d0a5-08df134c49b0 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CH2PEPF0000013F.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CHXPR12MB999220 On Mon, Sep 14, 2026 at 10:03:17PM -0400, Sasha Levin wrote: > > Patch itself looks good to me for v7.2 stable and v6.8 longterm. > > Queued for 6.18, thanks. > > > But v6.12 longterm might need some extra fix, Sasha? > > It does, but a different one. 6.12 has the devm teardown conversion and never > got 9ff145a25c5c ("iommu/tegra241-cmdqv: Fix CMD_SYNC use-after-free on > teardown") at all, so what it is missing is that commit rather than this > ordering fixup. It does not apply to 6.12 as-is either, because the > tegra241_cmdqv_destroy_vintf_user() hunk has no counterpart there. > > Could one of you send an adapted 6.12.y version with that hunk dropped? Shameer, would you mind helping backport your patch onto 6.12.y? Thanks Nicolin