From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from CH4PR04CU002.outbound.protection.outlook.com (mail-northcentralusazon11013022.outbound.protection.outlook.com [40.107.201.22]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 71BFF70808; Thu, 4 Jun 2026 10:21:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.201.22 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780568461; cv=fail; b=mjD2+c/+m/4Z2tLoUHDsMyzAIbBqGW4TOoEvbbl5F1tvK3OT3Bs8pKKCO5xIedIoFzibTW+4BaH2J8LfPCJqdrhfK+KL3fKajHJI/7QuXTrcONmM+i145mwnGXpM5j89GhO061oZ5WiP6T0CqJmGFT5w4r4wMyVOuRtbGKVAAmM= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780568461; c=relaxed/simple; bh=jc3VBc30R/H5JCjAhri0/lcgSDdOemOB8+icUueRiwo=; h=Date:From:To:Cc:Subject:Message-ID:References:Content-Type: Content-Disposition:In-Reply-To:MIME-Version; b=LaE0V+nSEddhhKQmHKfz6+e+gg1XQSny4UWctPMHJMsdyqpzSsJc6Aqa/qIhK3+hKzIU0aOYpsSFm51oYtvKluyV7pjugg/4OCQMU6lp8QhIdo+uydbZo7NYhQjW3lnmMAAidnAFPHB13t6qvapaKKX4HGgW6oN1irx7GFKhF0o= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=uaIZChsN; arc=fail smtp.client-ip=40.107.201.22 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="uaIZChsN" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=wONWdrKokzZWxyOgltO6ulZFy1cJJl0kUzIT7+Z8urUgfUMKAszYVXoggefxgXktX25p+E6Of3bO+/gtZ01NbymzeDqqvmg1aJA4NYq/AeDaI2D6u31aWsH80Rhv7MrTM1XMuL83EtKv+fuZzDYLeQLNaLr8nKbsX7T/2hVFXLLhnroFeWCGJXzBlUgUFN2bH6j5DuIaD+ToTVOXShPpzc9CJniM7Sf65rfZmYxDbIJKBCMiD1dJ9kT0wz+LTIUAniVIURiLSFSr1Zqv6Lqa8ELhI6VN+7xgvhK6pCgVIaORhUVg64UpCmvd8OkW1B2uKNJ4d1gaClNHy4H4TSJMKg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=WSR3v6veNg2V0/JnY9YlQi+dCJzFS8wXoE4X0BQRz0s=; b=G3eNChOEE6Z6NdISCpjxho7/N+v2z3bIEd6+kvRgndkbbghznwyQmNoIuidaeIZQWIqpMabyZxPQtoM/RGGwiuJgvqBsQBdDEPExIlvl84rxYMa9WBjmvBM8T36WozTTj2wOSJ+ZoKP2n/F8cM47T7vSyi8f+S2xEmO/WmlVSVnngUJV7+9/Jf8x+pMB+j1x/r/+YTKBetgBEDwIqsxYP65V6deMjUTNN0trTAIhpGV7xaNN8o59x6/wJgM8imaR5k2YveBJox0inB7tnBQtPeUi5GtFx/Aq9I7OJY5ZT5MZcXYmP07igbP6TWstAM9DwC1BbUIEH7Nrp9kbNFLPmQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=WSR3v6veNg2V0/JnY9YlQi+dCJzFS8wXoE4X0BQRz0s=; b=uaIZChsNrEJqHj/JR20KChfTdLuxkv0ngG4qcCyEgv7HdHzQybNryX3p07oe8EkKMJAvK/WmZ3yyCwJ9pDD0cHrweN7Qa9+Oo4ukEbllPATrVmom1c83oqxpNY+FOBLMVzgJZ1qfTxcXP9SmvGeIuAtDIpkzmqOVNrZJqjugZwF25PZoaaArH7nepHiOTSLk0MjusIuRyru6JAjB6UX0NRzatx+ovam1+FHUcxg63hTg4CWnSdNTcyFDKDTpsCQr8lOGG7Qa3L8AwdMcGbuLgIXc9fRK/lJEV7WPe0R3NqayjZSeXeIXMwoUkIRbxbMicPzvOdUL8Dv0e3vnoQZNzQ== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from SA3PR12MB7901.namprd12.prod.outlook.com (2603:10b6:806:306::12) by PH7PR12MB7819.namprd12.prod.outlook.com (2603:10b6:510:27f::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.71.14; Thu, 4 Jun 2026 10:20:56 +0000 Received: from SA3PR12MB7901.namprd12.prod.outlook.com ([fe80::6f7f:5844:f0f7:acc2]) by SA3PR12MB7901.namprd12.prod.outlook.com ([fe80::6f7f:5844:f0f7:acc2%6]) with mapi id 15.21.0092.007; Thu, 4 Jun 2026 10:20:55 +0000 Date: Thu, 4 Jun 2026 13:20:44 +0300 From: Ido Schimmel To: Runyu Xiao Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, dsahern@kernel.org, edumazet@google.com, horms@kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, jianhao.xu@seu.edu.cn Subject: Re: [PATCH net v2] ipv6: use READ_ONCE() for bindv6only default in inet6_create() Message-ID: <20260604102044.GE771160@shredder> References: <20260602002414.1504106-1-runyu.xiao@seu.edu.cn> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260602002414.1504106-1-runyu.xiao@seu.edu.cn> X-ClientProxiedBy: FR4P281CA0033.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:c7::16) To SA3PR12MB7901.namprd12.prod.outlook.com (2603:10b6:806:306::12) Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA3PR12MB7901:EE_|PH7PR12MB7819:EE_ X-MS-Office365-Filtering-Correlation-Id: 3f7650ec-1abd-4c5f-2630-08dec222f6c1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|7416014|1800799024|376014|18002099003|22082099003|56012099006|11063799006; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:SA3PR12MB7901.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(7416014)(1800799024)(376014)(18002099003)(22082099003)(56012099006)(11063799006);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?dWEo5l6XywL0riw4QExrjkv+JBocsfWb+nfX73UQ0724jDWMwdPfB8lFSMEN?= =?us-ascii?Q?gF+g94/wjfABCLZOFAOW1JPfG2tbxosLhdQnk/i5M6k1fUSqi/RIRSNwb3/f?= =?us-ascii?Q?0VnLhWXqgVRo878saAiJXfEJvCtoFZ7ZNRK4r/uj/9idVYDzEuCHu7ysfDBR?= =?us-ascii?Q?U6tQtKMCFqi1Lw1eCjHGuMJlYdn8Ute9IlO8rAyZ1BPl5FOc8Oe2c3iaphv6?= =?us-ascii?Q?ks/zGmBQR+ZX0zqYrW4ZeffN+A4AQ5zyvHy+HqGRWVo8JuEEIOoH8qF2GLsk?= =?us-ascii?Q?tya8+3L1KYLwj23ktmy+SPe2nPdK33Trj4GDY4Lquw2d0ze7KXzWsQlx8fAY?= =?us-ascii?Q?SC0sGp35QOHpTS+ynlcGny/ljDj+eK/WU9gf4lRnPBLR0ZEPjiszGqTvpMYa?= =?us-ascii?Q?xrJhQ2yQzY9y7425STirsKSLJZtmfLDqipiiVaZNeU4eADvpu7oYamI1ujqB?= =?us-ascii?Q?Y5WCqz1K4qT6CJdRN3dK13T17GG9GpOAKCYagjj6Zm2FkRILmuy9Mfy5y0Da?= =?us-ascii?Q?E0prexEpL0d5bG620cKUXhg/BY4E2jW0qy8a7S4FxASEEaIMYI/rp7NjIbMP?= =?us-ascii?Q?Oka+H+ip7jCL2+CbnsEa2hDRFQ9lxMG8UwhFeNd8/qA3kZ2jPB+4LObko1j2?= =?us-ascii?Q?MN/fZGhYHLhY/lK+b+1aH4YVlaBZd4iNDWMap49DuRICwX8RhOQVvnAQefy5?= =?us-ascii?Q?eF6Y8KlKvM972V/9QIyvjnDM/pve5+ve45vXZ0s02ipPXPBzkT+WLJ+T0TF1?= =?us-ascii?Q?TxTBZG+WQDowOG+yZTxiIcOfgX38AjsKR4ZkTBPIn4gkIW6jEGn4zTsi6NLY?= =?us-ascii?Q?Zk778zdOuKS6izTbnIpOImVwSL4Ol42NM6sEjAtZDZbLURtS6jNzmed1VSwy?= =?us-ascii?Q?+U9B2TTnDKD20YgzRIqO3T1RbhgbnaICENhbMFLbZsz9Y/MHfCIapDuEpbTa?= =?us-ascii?Q?uD3Sl19A1GFwRd1rU2x6GbXic+phfdC1D47KV+7syehisdIpFhUeWyPpG0H5?= =?us-ascii?Q?JZw7Pf9ROQ2KKW2vcKQDPpyjAdhv+bAlABin4PLADNEUHo6y3R5mWWHgHaac?= =?us-ascii?Q?UrZ3Ck6xUxDh1rocHrQQ0pe1navhz3UX7Rfdg+Y2cbLbEirFdB9YBTQN9LQP?= =?us-ascii?Q?1aQbTXSSuuVQPVOjx4t5znOrez+RB6YFCCv2GU+mMSIkdcENBtO2cKuITvqq?= =?us-ascii?Q?vVsD27329cTHjSMGdBAUlFmIKFveV/iYhX8PTB2MDiFyr5pgi2F/zHX7sc25?= =?us-ascii?Q?OQ6ruuevV+vUxI2HFSXopy7fRwlYg7ngBED4mUpiRC2TJFwrtKG/cPbgIK7R?= =?us-ascii?Q?mWV84vdS+BU9plB1tEgt+mqJsTiMdMv+6Q7h7Yi6PT1gGBa0IKmVOm2Q/Uz6?= =?us-ascii?Q?c6fVhsTWP9BUzKNDHs0bDwoveP0QRe+X0KQerraE7r1DhZAYyYuGrF/0QuL4?= =?us-ascii?Q?OkCXXxjWzNtgfu+gm8KU1146vS2rBFB4FI3sCYNuqkepfPgrAXXAFTtfTuI2?= =?us-ascii?Q?i+VYUOL79URGafqIpzRl5MACi+Xlo2oUCJvpyGDZptMBrMYreMmEHxR2hv8t?= =?us-ascii?Q?9mGf2M4u5AIon73Y0RYjsj333Pcoi3/YCfh6ffSg35R3yZLWhBvSPl4yl+bC?= =?us-ascii?Q?ZqBvxTMFlMoM+6S4CD5R5L5olPN56sxemDjdUXiBzXpPOxLvmrlIxdRpAf8u?= =?us-ascii?Q?WvxEW+uAGIniKZ1EDIyLrbEuYNVoVb+arlZ8x3VPVBdTaOsz8KC92MINo7t8?= =?us-ascii?Q?Wyt8/tukKg=3D=3D?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3f7650ec-1abd-4c5f-2630-08dec222f6c1 X-MS-Exchange-CrossTenant-AuthSource: SA3PR12MB7901.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Jun 2026 10:20:55.8971 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: njmL1qQPYRx37L58D/hgICWX41hGs1eMLbktgW27jzl8ZA70r3K1os3sNoOyW7s2udYFIANBHYTGV6BmynABXA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB7819 On Tue, Jun 02, 2026 at 08:24:14AM +0800, Runyu Xiao wrote: > inet6_create() reads net->ipv6.sysctl.bindv6only locklessly. > > Use READ_ONCE() for this sysctl access. There should be a blank line here. > Signed-off-by: Runyu Xiao For net-next: Reviewed-by: Ido Schimmel