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pr=C Message-ID: <8667c4cf-e974-6107-8a98-4a14a89f9266@amd.com> Date: Mon, 17 Apr 2023 12:35:50 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [XEN][PATCH v5 09/17] xen/iommu: protect iommu_add_dt_device() with dtdevs_lock Content-Language: en-US To: Vikram Garhwal , CC: , Julien Grall References: <20230411191636.26926-1-vikram.garhwal@amd.com> <20230411191636.26926-10-vikram.garhwal@amd.com> From: Michal Orzel In-Reply-To: <20230411191636.26926-10-vikram.garhwal@amd.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS1PEPF0000E650:EE_|IA1PR12MB7495:EE_ X-MS-Office365-Filtering-Correlation-Id: 93dcc17e-e85e-4b32-2512-08db3f2f92c6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(396003)(39860400002)(376002)(346002)(136003)(451199021)(46966006)(36840700001)(40470700004)(478600001)(8936002)(8676002)(316002)(41300700001)(82740400003)(4326008)(40480700001)(70586007)(70206006)(81166007)(54906003)(110136005)(356005)(40460700003)(186003)(4744005)(2906002)(36756003)(53546011)(26005)(336012)(86362001)(31696002)(83380400001)(426003)(47076005)(82310400005)(2616005)(36860700001)(31686004)(16576012)(5660300002)(44832011)(43740500002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Apr 2023 10:36:16.0747 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 93dcc17e-e85e-4b32-2512-08db3f2f92c6 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS1PEPF0000E650.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB7495 Hi Vikram, On 11/04/2023 21:16, Vikram Garhwal wrote: > > > Protect iommu_add_dt_device() with dtdevs_lock to prevent concurrent access add. > > Signed-off-by: Vikram Garhwal > Reviewed-by: Luca Fancellu Reviewed-by: Michal Orzel ~Michal