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Mon, 30 Mar 2026 04:25:59 -0700 Date: Mon, 30 Mar 2026 04:25:57 -0700 From: Nicolin Chen To: Qinxin Xia CC: , , , , , , , , , , Subject: Re: [RFC PATCH v2 2/5] iommu/arm-smmu-v3: Add register display to debugfs Message-ID: References: <20260328101706.3448655-1-xiaqinxin@huawei.com> <20260328101706.3448655-3-xiaqinxin@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260328101706.3448655-3-xiaqinxin@huawei.com> X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000E9D6:EE_|BY5PR12MB4178:EE_ X-MS-Office365-Filtering-Correlation-Id: 790ab2a4-b729-4915-4b4b-08de8e4f2ba0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|36860700016|82310400026|7416014|376014|22082099003|18002099003|56012099003; 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)(1800799024)(36860700016)(82310400026)(7416014)(376014)(22082099003)(18002099003)(56012099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: OTmmrR2hTxbgTS7N0RS1cDgtxG/0AaiMPURoO9pMb4apG3bpMHVY8oWe6aiCXbvZJD9VZnuV/WyLP/+Vm7Rqf4Tkwtzp6QHnk3h0SzpowFuvKo0fS1CnO4OXAPuasczKwnxH0Yz8Udbr0kP0sIui1teLBNviu+UPeWteeXeNFYsP9hSWdSh7Yz89gDf3PT0N3rp95hR7Qs49HVzoVVRnr2Z069KAZ0mlEebH3rJl0DmnIDGQCZqK923SKYEbrM5r9V6+EzBkwVAMs9bP5z2/w18ruB1IoaiiHomo3oX2vDvK48ceuL9zVI8s7pQ77+r1BGtTibDE6h/kfYTQ4yJFYm6oe3S4G5pyzT47BgYlxzzsB4VIraSU4fR/vcYfwsJeZQIGbzUVLj2EFFrhS99oYqKR0/GL49KOwvX5uhCm7HvT9S7qHmBerKP0irSekyUR X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Mar 2026 11:26:21.7985 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 790ab2a4-b729-4915-4b4b-08de8e4f2ba0 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: CY4PEPF0000E9D6.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR12MB4178 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260330_042629_519286_FB33543E X-CRM114-Status: GOOD ( 10.36 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Sat, Mar 28, 2026 at 06:17:03PM +0800, Qinxin Xia wrote: > --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-debugfs.c > +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-debugfs.c > @@ -5,13 +5,18 @@ > * Directory Structure: > * /sys/kernel/debug/iommu/arm_smmu_v3/ > * └── smmu/ > - * └── capabilities # SMMU feature capabilities and configuration Nit: perhaps the last line in every patch could start with '|-', so we wouldn't need to update it every time. > + * ├── capabilities # SMMU feature capabilities and configuration > + * └── registers # SMMU Key registers Maybe replace '\t' with whitespaces? The final file doesn't seem to have this line properly aligned with others also. Nicolin