From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from EUR04-DB3-obe.outbound.protection.outlook.com (mail-eopbgr60057.outbound.protection.outlook.com [40.107.6.57]) (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 6F81D29CA for ; Wed, 29 Sep 2021 13:29:40 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=eliaqHzQjRNGZtDwlfIGyI6Qp1bRrswntEVdLphX4StE5wTj/8WY9/MqP03FQuX9bXyd+bWJ3JsVpDtowdLc45muuzzvKdUJQWD48Zc7v2eXDlfHnJqI3dgtswYsKsIOkc0Q2N8ni6Bcg1OLhanDC3ftzsdhcpRr12RKxYEBr7k2U3eEKiY96tqwPUVTquPJLcFfZH88ykQipmx5NVNqFISFSy2kjHWAiGTsr6/x7IG4EPZqZKyAWwbdzPmtfnwQ1SBq0xO62AlRmV9+p0BXuOHTf58ClZOWS8Pqa6LgV3x2nzaZNa0MhXl38sNbVl6KAgUX8M3JrbSGSqHGKsmL6g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=9fe0gqesOAPD6nIyD+HwiLivs0LnML75ncKU5Da/5K4=; b=lfbIfSZQ/n95fy4LhCnxlwCawUE/AX1Y9nrdYZl32J5QDegMP6efyxNJ0aptZjA9obOTbqJWN4iFvrevuA3X0vbAEv2NYGK8t/NzTknnY/aDi5jAQ1tWCJ1KUe2l2dFUXnT+5aL+K8i7UXz2Irgf7i5mKWc2exYgc1AeN+IZCKSuCmShCD2FdX2qMU2zpS3lxyYrhCU8kuDbl35kgzCe5sCUlEvTkU7aBh3QLA9Gdz9KD/z/KPfwLGsxEB2X/U8C/51yV2fJFloC6F2sPqqrmhWv3ubFHGBk/GftTrxnUAOsdBLrWdS5oOwq5fUYHeqjcah3O1YNGOtxffGvj76yug== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=9fe0gqesOAPD6nIyD+HwiLivs0LnML75ncKU5Da/5K4=; b=aWodotAJ13EcatTEI/Wu+FKP5itK/m51v5fLvc9Wz0NDrczh1BQTn8g0aavbHc49b6wuMPyJvK5E5zKd127xJXkUxYO49rb7A96Cnj5Jnw8jc08UpcXP0Pi/DI25wNZ+uGSRbOKg6qg/LJGEKkdgpeAoBXNaBe7s8QGKPw4kCD0= Received: from VI1PR04MB5136.eurprd04.prod.outlook.com (2603:10a6:803:55::19) by VI1PR04MB4221.eurprd04.prod.outlook.com (2603:10a6:803:3e::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4566.14; Wed, 29 Sep 2021 13:29:37 +0000 Received: from VI1PR04MB5136.eurprd04.prod.outlook.com ([fe80::e157:3280:7bc3:18c4]) by VI1PR04MB5136.eurprd04.prod.outlook.com ([fe80::e157:3280:7bc3:18c4%5]) with mapi id 15.20.4544.022; Wed, 29 Sep 2021 13:29:37 +0000 From: Vladimir Oltean To: Leon Romanovsky CC: "David S . Miller" , Jakub Kicinski , Leon Romanovsky , Alexandre Belloni , Andrew Lunn , Ariel Elior , Bin Luo , Claudiu Manoil , Coiby Xu , Derek Chickles , "drivers@pensando.io" , Eric Dumazet , Felix Manlunas , Florian Fainelli , Geetha sowjanya , Greg Kroah-Hartman , "GR-everest-linux-l2@marvell.com" , "GR-Linux-NIC-Dev@marvell.com" , hariprasad , Ido Schimmel , "intel-wired-lan@lists.osuosl.org" , Ioana Ciornei , Jerin Jacob , Jesse Brandeburg , Jiri Pirko , Jonathan Lemon , Linu Cherian , "linux-kernel@vger.kernel.org" , "linux-omap@vger.kernel.org" , "linux-rdma@vger.kernel.org" , "linux-staging@lists.linux.dev" , Manish Chopra , Michael Chan , Moshe Shemesh , "netdev@vger.kernel.org" , "oss-drivers@corigine.com" , Richard Cochran , Saeed Mahameed , Salil Mehta , Satanand Burla , Shannon Nelson , Shay Drory , Simon Horman , Subbaraya Sundeep , Sunil Goutham , Taras Chornyi , Tariq Toukan , Tony Nguyen , "UNGLinuxDriver@microchip.com" , Vadym Kochan , Vivien Didelot , Yisen Zhuang Subject: Re: [PATCH net-next v1 1/5] devlink: Add missed notifications iterators Thread-Topic: [PATCH net-next v1 1/5] devlink: Add missed notifications iterators Thread-Index: AQHXtSmu5y6IvLJs4EG01H02pouwAqu7AcQA Date: Wed, 29 Sep 2021 13:29:37 +0000 Message-ID: <20210929132936.hnts7lmweewqedxi@skbuf> References: <2ed1159291f2a589b013914f2b60d8172fc525c1.1632916329.git.leonro@nvidia.com> In-Reply-To: <2ed1159291f2a589b013914f2b60d8172fc525c1.1632916329.git.leonro@nvidia.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: kernel.org; dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=nxp.com; x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 699720a7-d124-458d-55e2-08d9834d2ef2 x-ms-traffictypediagnostic: VI1PR04MB4221: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:335; 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:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:VI1PR04MB5136.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(7916004)(4636009)(366004)(66446008)(64756008)(91956017)(76116006)(66946007)(8676002)(33716001)(7406005)(66476007)(66556008)(2906002)(7366002)(7416002)(8936002)(15650500001)(6486002)(45080400002)(86362001)(1076003)(316002)(54906003)(26005)(508600001)(5660300002)(4326008)(6916009)(6506007)(44832011)(9686003)(6512007)(71200400001)(186003)(38070700005)(38100700002)(122000001)(83380400001);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?us-ascii?Q?0XZ66elNCE/08GsOQxDNMuLWXfqXRSiD/S/bjUHBLZRGvmQtTfwR/y6ajXIR?= =?us-ascii?Q?dx5UTFFkNHHJG9d98n/NyGLzCjULosvoDMbiT8eRFCm7M7Gmqn1SfF4aRVrI?= =?us-ascii?Q?U8WRdA8t38T32tgxTlXoQU4Dx5IVt6+WYRWHgX7RMB28YwGGtl6X0t3pjMyd?= =?us-ascii?Q?SOGKsWCUGk8ha0QvSIRKzPxmiCqo53YDO7ghQ0TfYGYXCfYxwamEDd0cgxYX?= =?us-ascii?Q?UD5yDjo3xJZ+5fprfuyjWNeMjcyWpaz9vENSAt6cpUwASOe7shfuqRZn43Mz?= =?us-ascii?Q?yzObcnU/ETFxJAEKUX7VzmB/vcMDZDmOiYp+fM1MKsd1s/MnN4Y6nTgh1GkO?= =?us-ascii?Q?j1VFs9zLM9WyRB+fzbDHAGphSVmFzDVEfRU3pYRmyBMXQR2dzggL5RIRlELM?= =?us-ascii?Q?J1IhkAyXDqfWzeIMjFaFeBySU7kCFFBUg/EQ0wYykG5wKjQtMqkrUDXpmlTM?= =?us-ascii?Q?JfzufRqS6Rk4S16nMcrIq1kN4phfSMGxaETcIGLTaYP5VxKevIrSTud48ysC?= =?us-ascii?Q?rQf27Gj9lTEaI95GwvXM46TyGYh/fDKPr4Y8CqyOEyXlA7jkP13SGR8SIPo1?= =?us-ascii?Q?cUAVxbyu31p8yF4fJIkPRR05BX7haAx5BE1qUlzTdFAQQk+19ePG+U/ch/pB?= =?us-ascii?Q?yTN0I+8yFVDLBVuU2pHoAXG6PC3ECQ0KXU8QzrGeGpxl37LjgxahXJbyWgYY?= =?us-ascii?Q?Z0BGWQeNmmT9Po1lp5JRZjnWaQYkCwDmVkmYJEO795R9NVVxA/O5jFWmb3zf?= =?us-ascii?Q?sj87/rJjyP/eVWVnX6qEOQvRk797KhkYIDZV0GZPdpwNIkjOQxsq7wKNh2Vq?= =?us-ascii?Q?ySMvgqYfXVnwJdVTUh2SIIp/9+rqUeyigtUUdfm1KpnnOLHy7Kr2lnSBFK4w?= =?us-ascii?Q?yAa4znlsNXX9D8oqN41gCLnbvNMQCsqd2hjeCpVAWrezFJbRljTaTnxanAX+?= =?us-ascii?Q?HALnbPGfbQVeabdQatAZpPapwiEPbyxn3lbmpKxRUXgW+lPSZBB8G7wnp7D+?= =?us-ascii?Q?Z6HTR/RhiAaS5clZZKbKu6JpadUiwKf8c7S4bBblK7znpIr3VCRgeMwRUVfN?= =?us-ascii?Q?Bc6oCjj5WKuW/gq4l0ReVuei7j/PK2W2bc2T325p0NR6eXOwLb1jCrMweMcC?= =?us-ascii?Q?/gh5ECXB3CGRELxn0W/AsxjCX4MNgUhDaNgEUHee+IqX6scoxBU9579xLq+M?= =?us-ascii?Q?GCn6/LzbcFB/4AiM+j3k6a+2UPU8Ln8OskqQdhQLIKScP4u5AlTu9h/jQkgA?= =?us-ascii?Q?QFKJrl253pdhZNpCd2UYJSamnstAQ+1TB4pqWwSnVkoMvi9BgeeUh0Esl8C8?= =?us-ascii?Q?9zeSuFxPMFe+uTN2Es/oUx3G?= Content-Type: text/plain; charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: VI1PR04MB5136.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 699720a7-d124-458d-55e2-08d9834d2ef2 X-MS-Exchange-CrossTenant-originalarrivaltime: 29 Sep 2021 13:29:37.1990 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 874E3XGpVhXRoxyBB5sw13xGweMfS5gdq+7X8oi54LtQC0r1ZkJuyyb7iLWLloPWRCaoosr1gU4PUXvUEwMbVg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB4221 On Wed, Sep 29, 2021 at 03:00:42PM +0300, Leon Romanovsky wrote: > From: Leon Romanovsky >=20 > The commit mentioned in Fixes line missed a couple of notifications that > were registered before devlink_register() and should be delayed too. >=20 > As such, the too early placed WARN_ON() check spotted it. >=20 > WARNING: CPU: 1 PID: 6540 at net/core/devlink.c:5158 devlink_nl_region_no= tify+0x184/0x1e0 net/core/devlink.c:5158 > Modules linked in: > CPU: 1 PID: 6540 Comm: syz-executor.0 Not tainted 5.15.0-rc2-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS G= oogle 01/01/2011 > RIP: 0010:devlink_nl_region_notify+0x184/0x1e0 net/core/devlink.c:5158 > Code: 38 41 b8 c0 0c 00 00 31 d2 48 89 ee 4c 89 e7 e8 72 1a 26 00 48 83 c= 4 08 5b 5d 41 5c 41 5d 41 5e e9 01 bd 41 fa > e8 fc bc 41 fa <0f> 0b e9 f7 fe ff ff e8 f0 bc 41 fa 0f 0b eb da 4c 89 e7= e8 c4 18 > RSP: 0018:ffffc90002d6f658 EFLAGS: 00010293 > RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 > RDX: ffff88801f08d580 RSI: ffffffff87344e94 RDI: 0000000000000003 > RBP: ffff88801ee42100 R08: 0000000000000000 R09: 0000000000000000 > R10: ffffffff87344d8a R11: 0000000000000000 R12: ffff88801c1dc000 > R13: 0000000000000000 R14: 000000000000002c R15: ffff88801c1dc070 > FS: 0000555555e8e400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000= 000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 000055dd7c590310 CR3: 0000000069a09000 CR4: 00000000003506e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > Call Trace: > devlink_region_create+0x39f/0x4c0 net/core/devlink.c:10327 > nsim_dev_dummy_region_init drivers/net/netdevsim/dev.c:481 [inline] > nsim_dev_probe+0x5f6/0x1150 drivers/net/netdevsim/dev.c:1479 > call_driver_probe drivers/base/dd.c:517 [inline] > really_probe+0x245/0xcc0 drivers/base/dd.c:596 > __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751 > driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781 > __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:898 > bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 > __device_attach+0x228/0x4a0 drivers/base/dd.c:969 > bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 > device_add+0xc35/0x21b0 drivers/base/core.c:3359 > nsim_bus_dev_new drivers/net/netdevsim/bus.c:435 [inline] > new_device_store+0x48b/0x770 drivers/net/netdevsim/bus.c:302 > bus_attr_store+0x72/0xa0 drivers/base/bus.c:122 > sysfs_kf_write+0x110/0x160 fs/sysfs/file.c:139 > kernfs_fop_write_iter+0x342/0x500 fs/kernfs/file.c:296 > call_write_iter include/linux/fs.h:2163 [inline] > new_sync_write+0x429/0x660 fs/read_write.c:507 > vfs_write+0x7cf/0xae0 fs/read_write.c:594 > ksys_write+0x12d/0x250 fs/read_write.c:647 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x44/0xae > RIP: 0033:0x7f328409d3ef > Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 1= 8 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 > 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd= ff ff 48 > RSP: 002b:00007ffdc6851140 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 > RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f328409d3ef > RDX: 0000000000000003 RSI: 00007ffdc6851190 RDI: 0000000000000004 > RBP: 0000000000000004 R08: 0000000000000000 R09: 00007ffdc68510e0 > R10: 0000000000000000 R11: 0000000000000293 R12: 00007f3284144971 > R13: 00007ffdc6851190 R14: 0000000000000000 R15: 00007ffdc6851860 >=20 > Fixes: 474053c980a0 ("devlink: Notify users when objects are accessible") > Reported-by: Eric Dumazet > Signed-off-by: Leon Romanovsky > --- Tested-by: Vladimir Oltean = From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vladimir Oltean Date: Wed, 29 Sep 2021 13:29:37 +0000 Subject: [Intel-wired-lan] [PATCH net-next v1 1/5] devlink: Add missed notifications iterators In-Reply-To: <2ed1159291f2a589b013914f2b60d8172fc525c1.1632916329.git.leonro@nvidia.com> References: <2ed1159291f2a589b013914f2b60d8172fc525c1.1632916329.git.leonro@nvidia.com> Message-ID: <20210929132936.hnts7lmweewqedxi@skbuf> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: intel-wired-lan@osuosl.org List-ID: On Wed, Sep 29, 2021 at 03:00:42PM +0300, Leon Romanovsky wrote: > From: Leon Romanovsky > > The commit mentioned in Fixes line missed a couple of notifications that > were registered before devlink_register() and should be delayed too. > > As such, the too early placed WARN_ON() check spotted it. > > WARNING: CPU: 1 PID: 6540 at net/core/devlink.c:5158 devlink_nl_region_notify+0x184/0x1e0 net/core/devlink.c:5158 > Modules linked in: > CPU: 1 PID: 6540 Comm: syz-executor.0 Not tainted 5.15.0-rc2-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > RIP: 0010:devlink_nl_region_notify+0x184/0x1e0 net/core/devlink.c:5158 > Code: 38 41 b8 c0 0c 00 00 31 d2 48 89 ee 4c 89 e7 e8 72 1a 26 00 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e e9 01 bd 41 fa > e8 fc bc 41 fa <0f> 0b e9 f7 fe ff ff e8 f0 bc 41 fa 0f 0b eb da 4c 89 e7 e8 c4 18 > RSP: 0018:ffffc90002d6f658 EFLAGS: 00010293 > RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 > RDX: ffff88801f08d580 RSI: ffffffff87344e94 RDI: 0000000000000003 > RBP: ffff88801ee42100 R08: 0000000000000000 R09: 0000000000000000 > R10: ffffffff87344d8a R11: 0000000000000000 R12: ffff88801c1dc000 > R13: 0000000000000000 R14: 000000000000002c R15: ffff88801c1dc070 > FS: 0000555555e8e400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 000055dd7c590310 CR3: 0000000069a09000 CR4: 00000000003506e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > Call Trace: > devlink_region_create+0x39f/0x4c0 net/core/devlink.c:10327 > nsim_dev_dummy_region_init drivers/net/netdevsim/dev.c:481 [inline] > nsim_dev_probe+0x5f6/0x1150 drivers/net/netdevsim/dev.c:1479 > call_driver_probe drivers/base/dd.c:517 [inline] > really_probe+0x245/0xcc0 drivers/base/dd.c:596 > __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751 > driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781 > __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:898 > bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 > __device_attach+0x228/0x4a0 drivers/base/dd.c:969 > bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 > device_add+0xc35/0x21b0 drivers/base/core.c:3359 > nsim_bus_dev_new drivers/net/netdevsim/bus.c:435 [inline] > new_device_store+0x48b/0x770 drivers/net/netdevsim/bus.c:302 > bus_attr_store+0x72/0xa0 drivers/base/bus.c:122 > sysfs_kf_write+0x110/0x160 fs/sysfs/file.c:139 > kernfs_fop_write_iter+0x342/0x500 fs/kernfs/file.c:296 > call_write_iter include/linux/fs.h:2163 [inline] > new_sync_write+0x429/0x660 fs/read_write.c:507 > vfs_write+0x7cf/0xae0 fs/read_write.c:594 > ksys_write+0x12d/0x250 fs/read_write.c:647 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x44/0xae > RIP: 0033:0x7f328409d3ef > Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 > 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48 > RSP: 002b:00007ffdc6851140 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 > RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f328409d3ef > RDX: 0000000000000003 RSI: 00007ffdc6851190 RDI: 0000000000000004 > RBP: 0000000000000004 R08: 0000000000000000 R09: 00007ffdc68510e0 > R10: 0000000000000000 R11: 0000000000000293 R12: 00007f3284144971 > R13: 00007ffdc6851190 R14: 0000000000000000 R15: 00007ffdc6851860 > > Fixes: 474053c980a0 ("devlink: Notify users when objects are accessible") > Reported-by: Eric Dumazet > Signed-off-by: Leon Romanovsky > --- Tested-by: Vladimir Oltean