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Thu, 9 May 2024 02:04:25 -0700 Date: Thu, 9 May 2024 02:04:18 -0700 From: Nicolin Chen To: , Robin Murphy CC: , , , , "Dmitry Baryshkov" Subject: Re: [PATCH] arm64: Properly clean up iommu-dma remnants Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF00001CEA:EE_|PH0PR12MB5679:EE_ X-MS-Office365-Filtering-Correlation-Id: 4dc49c03-ab01-43ea-c213-08dc70071331 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230031|376005|82310400017|1800799015|36860700004; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?LU14fgp01pxId9bi5H9ARUDgmr6JdozJkbMddXwXGJiU5VCznxnKGWS/Ka91?= =?us-ascii?Q?JdCjF4pJITcQMGk/8KldIMqQ30vtedXDxexfIOLL1gBalvWPX+jpEFjaD3li?= =?us-ascii?Q?+vvhrAwtf1g3jPtwgGi8ljxoQLlFzBAGTZzSiuB6iv577o86o9oxh/G18PKf?= =?us-ascii?Q?NIdKsJxDWp6CCR5pDNS7eZKTe75TyKnT/rUYb0io6LkKILtIrvSY6YbDhe8O?= =?us-ascii?Q?OuaX2ADXA1dmJnoEx5Nrs5YbjwLzk11TJkitKGlns/WpaVv7dCXmw8ylay6Z?= =?us-ascii?Q?12ihps+88zQLhCSaTjYADHg4cQrjEMDjb52hzi2St7aWDEpX6Xpv5XQsZuB7?= =?us-ascii?Q?Eqm9HBxEAbST3moRkevt/H8jarodIHLFDRWbDYZjOE+Ffs47fN7W/QRZMikZ?= =?us-ascii?Q?QzIXU6L1qZ9B+i0dn+0jwV1wh1uK0zerqNnPHOL8641v43HgnezvI8uCRgmA?= =?us-ascii?Q?AHi2p5X+ahX9Hge5wfum1r/Z1X5vYEOJaYoWh3gFa6x5EAb+ab8EOQ3UmtJB?= =?us-ascii?Q?SKcUrQP3yzu31VabHXAGu4aHNx0D34vsOxWt5xTCyYAHpdORPnX/mFm9a/OJ?= =?us-ascii?Q?aELH5OsTcE7O/8+4NsKNgnTbgPHH0C9Kg2qyVIyoJvo3V7nOQ3rc9NalJxVV?= =?us-ascii?Q?qGtooTEaXsoCcLbloSX5lAjl6mX6zom4jHob4B+sseXzIH9kbihi8kUH1Pjr?= =?us-ascii?Q?RoS2fnQhcH8QmMtKVzwW8xfZDQmttpGUDpnojHZlYljRwMkF6Wty7GAkoyr0?= =?us-ascii?Q?Kniomt2e246cDhosTe1ek5oW+mXGIUncu9fGGoMk5eXtR8yaSnbqXg6e25dN?= =?us-ascii?Q?7fAOzxyIg0/RoxAYSlXXsAXaRi9ejej5LnTeGqEgX9hyy8MCywtWVkgM0e8e?= =?us-ascii?Q?WsAuF+AF2r0jXgGNCHWbrXG1fDtpMNhkjdQo37F+NITxQZeh2BFs+vN2PhwH?= =?us-ascii?Q?I+6iW1hzFKej0AKrtfcYdxwoM8QAONYMU/Lbs3kM8Lm5j4npB6ZlCzObrp8S?= =?us-ascii?Q?j46CTDQh7isGvXsnnr/b4DnpgtXAQiHXZFhLXIeh6exaGPONbPT2e0/RNpAD?= =?us-ascii?Q?lsPnsUitk7Zahc2XM+574IOAVx7V7Ha5qWd/4rxlKXpwghpkb8L6zSeeu6CK?= =?us-ascii?Q?p9bdoJe1fbgRmeL6eQu0rN/f90h9g5vlIdICsMAb/jGaytCZSb0JXUuTwQ3g?= =?us-ascii?Q?u1xHDEPv8XZ5ojfHLRsOMjufMzAjojlW1ZnUCm6sGptg5amjzvW40t5dP/WC?= =?us-ascii?Q?86Aq9TXXMzFoO8wPDpher0F6pu20yiNahvDbYL8x1wKOV/SP5Mz31EcO7ME4?= =?us-ascii?Q?6a4yPvmGz7km6ZOOpNBgjjQqOpbJvSyo65qDsR67wi5RlMa9xlb+NMIybNRX?= =?us-ascii?Q?W0tVRaE=3D?= 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:(13230031)(376005)(82310400017)(1800799015)(36860700004);DIR:OUT;SFP:1101; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Apr 30, 2024 at 11:22:53AM +0100, Robin Murphy wrote: > Thanks to the somewhat asymmetrical nature, while removing > iommu_setup_dma_ops() from the arch_setup_dma_ops() flow, I managed to > forget that arm64's teardown path was also specific to iommu-dma. Clean > that up to match, otherwise probe deferral will lead to the arch code > erroneously removing DMA ops set elsewhere. > > Reported-by: Dmitry Baryshkov > Link: https://lore.kernel.org/linux-iommu/Zi_LV28TR-P-PzXi@eriador.lumag.spb.ru/ > Fixes: b67483b3c44e ("iommu/dma: Centralise iommu_setup_dma_ops()") > Signed-off-by: Robin Murphy This fixes the breakage occurring to my system too. Thanks! Tested-by: Nicolin Chen _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel