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Fri, 11 Oct 2024 00:24:47 -0700 From: henryl To: Mathias Nyman , Greg Kroah-Hartman , Thierry Reding , Jonathan Hunter , , , CC: Subject: [PATCH] xhci: tegra: fix checked USB2 port number Date: Fri, 11 Oct 2024 15:22:40 +0800 Message-ID: <20241011072240.42978-1-henryl@nvidia.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS3PEPF0000C37D:EE_|CH0PR12MB8552:EE_ X-MS-Office365-Filtering-Correlation-Id: 9fa5221f-7e2e-4f4e-440d-08dce9c5cbb9 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|1800799024|376014|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?iwimozzNZIY4pJQKufMM6H4PQJdFXRHJBLeQXtKOwmLKTHFVnpRRs0yoJcAE?= =?us-ascii?Q?sQipZ89UNvKWNpRMOlHSAtqnnzn30NT0DEO2do5QtpcadAH7xVIaPKZCHrvZ?= =?us-ascii?Q?CDuXXZ51e2LO7ZuuRZwFMa0Ymz/R169/q327qkZc6iMTyoWs0lbCIC+HZDe7?= =?us-ascii?Q?Sx4G/P/yGf8HZ6a5OOrhX1EQFUb+BU6DsOXlowovUyxCcgQShZzzebkcAuFD?= =?us-ascii?Q?RQr64lVR5nMyXbt143i/sJ57rI41ONRCYUYBUHwx5LpgKbi7SyBir1l1saih?= =?us-ascii?Q?OA/BIZ+Ns7HVhPrTMPXzgdpWwTEHrUmXL/PxagK7gFUQMmD0qAB0dc8g0us/?= =?us-ascii?Q?j7TbyI5bQus9/fKlPhkduGIt16ZvXSnJJwYkVwdT+nNByRKfEk2BgFL0OHPZ?= =?us-ascii?Q?KV0wcHO6gUPSyjuzgDo312LkyehRsO9whLGol2R8JshmIO2DwR3qsm9W/nFJ?= =?us-ascii?Q?QEsLEpzB6IHUydWAaRQpeGFjUaZE206CRzJf/aTI0W2XnzfDXls88wrWSlgQ?= =?us-ascii?Q?lJu37ixQWAyHLifzik2f+L495gXQj1rDL1Dt170EvofQ4whU6JIIJvBssbfY?= =?us-ascii?Q?0p9tdAuC5aPG7gxLOWut71iQoV4BfEEczr3/vZPlhkifE3S6aI7uSSUQjzxy?= =?us-ascii?Q?Wy89tvWGZ+yGm6ZmNAiQRLAvYJNgdKO1HJwapxzqE5KlP+Ir2jXh/CbDf8wo?= =?us-ascii?Q?5wJiTEKYQFXuTBjByKiuniSMrFNQSCGLN3x5KstUIdSp1LbVDgTgAOynVy75?= =?us-ascii?Q?eJa4tCGb30pDvjIen2DkVYqdbDNM9lTsLQZYwP2cNBA5vEfv07dZBRBoSQsu?= =?us-ascii?Q?uuc2T6YzE55booL2/41BymuTpoVNbNqqqyY+C1cvRdZXCn4Hs27D7ILQbr7u?= =?us-ascii?Q?q8IKPbi4JdlpS0yisGR5b+LLk9HAHKEclF3kPpVS0a6JaLwlYa6FsKkgeTVE?= =?us-ascii?Q?TbbrvxEZFoS6fLZgQkGYUrThbcPumV/o0WUHMhN0MSRo8v8f+14QOdibb/Ii?= =?us-ascii?Q?9Z+dmxwQFFff6ukINXO7md7beAQzJH7Shb3+eJ3X7R+wemrAqjmLr6ZlFnCn?= =?us-ascii?Q?dEsHttZ2zuTcNKHpLZG9nxDf9XFDbJ+xE6O8E0+hwWrmrPGw6xXH2/BiRe1W?= =?us-ascii?Q?gzCgrsC0Bw5xgKKsAZtoyEch21aFZJh/VoJnDQMIP0JYNzWy0RQgcJRYV8dk?= =?us-ascii?Q?wRikTuR2dUh+Efs2iBvYeD0sGXZUlSQW3Q6IDpqk0jclHYPNL/CocxIkJ2a/?= =?us-ascii?Q?rE/qnIwLbTMU2WwTT060lJ66Ixqfvcz6RlvKvKRDO27zN9A1FDTJw+g0PGH7?= =?us-ascii?Q?CogShq0nAIzIREITTzyaJNvoe7xgroV7wsvcHpD+9nYUE1RMC3N4U6H7B6Wm?= =?us-ascii?Q?/vnCu1g=3D?= X-Forefront-Antispam-Report: CIP:216.228.118.232;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge1.nvidia.com;CAT:NONE;SFS:(13230040)(36860700013)(1800799024)(376014)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Oct 2024 07:24:51.3638 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 9fa5221f-7e2e-4f4e-440d-08dce9c5cbb9 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DS3PEPF0000C37D.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH0PR12MB8552 Content-Type: text/plain; charset="utf-8" From: Henry Lin USB2 root hub in VF may contain less port number than supported USB2 phy number. Checking all USB2 phy number here would cause invalid memory access. [ 116.923438] Unable to handle kernel paging request at virtual address 00= 6c622f7665642f ... [ 117.213640] Call trace: [ 117.216783] tegra_xusb_enter_elpg+0x23c/0x658 [ 117.222021] tegra_xusb_runtime_suspend+0x40/0x68 [ 117.227260] pm_generic_runtime_suspend+0x30/0x50 [ 117.232847] __rpm_callback+0x84/0x3c0 [ 117.237038] rpm_suspend+0x2dc/0x740 [ 117.241229] pm_runtime_work+0xa0/0xb8 [ 117.245769] process_scheduled_works+0x24c/0x478 [ 117.251007] worker_thread+0x23c/0x328 [ 117.255547] kthread+0x104/0x1b0 [ 117.259389] ret_from_fork+0x10/0x20 [ 117.263582] Code: 54000222 f9461ae8 f8747908 b4ffff48 (f9400100) Signed-off-by: Henry Lin --- drivers/usb/host/xhci-tegra.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index 6246d5ad1468..76f228e7443c 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -2183,7 +2183,7 @@ static int tegra_xusb_enter_elpg(struct tegra_xusb *t= egra, bool runtime) goto out; } =20 - for (i =3D 0; i < tegra->num_usb_phys; i++) { + for (i =3D 0; i < xhci->usb2_rhub.num_ports; i++) { if (!xhci->usb2_rhub.ports[i]) continue; portsc =3D readl(xhci->usb2_rhub.ports[i]->addr); --=20 2.25.1