Received: by 2002:a25:1985:0:0:0:0:0 with SMTP id 127csp1084315ybz; Fri, 17 Apr 2020 15:42:26 -0700 (PDT) X-Google-Smtp-Source: APiQypKWxq2xeLf4JNFvPR6foonNMrlpbJR0+xzT+TjUTDvtVG2FdrQohEZIl5t3mbhgbbgLYAIZ X-Received: by 2002:aa7:d64e:: with SMTP id v14mr5230937edr.19.1587163345949; Fri, 17 Apr 2020 15:42:25 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1587163345; cv=pass; d=google.com; s=arc-20160816; b=KGbt1X+HpIetTR2woVmsXgJKfc0ha7y4b+Su1mI4XPl2L0EEb1gUE/JfA6yRrWwNV9 Q5H8Mfc8Ue9wWJlyWwZJ9mdzz1OHBVuat98z3FTchJPnkTDbiSyZ7CxMPFhi7quEntoh Yq6XODt167+E0fwAp9c4rKbKZOHdAP4Yw0DLOeVnHwi+YLYoqSPXkUf8OE+rcoMHvwXu RPQFCaDtV+CLJnQNfRwKplg7eqoiP+TUqfNYDhMn5W3kPv7gVda5/3Kmi6sfm0/1pUQA qkQFpPEp3MHjxNAd4XK9t9zhpc69ybPyGpJI7GtVnGyvUSX/3FOo2C+geoYf25C77zkV libA== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:user-agent:in-reply-to :content-disposition:references:message-id:subject:cc:to:from:date :dkim-signature:dkim-signature; bh=8awsTdtUXUkacfl7t6lf7HqPpjb5Hk45wGMQI1xpF68=; b=onCSRXLbRMpfoiRpJvPRB1AWJexqqp7Si658UfgkKMNp/GSI4cC+wgLIrogoTvxFU3 bsNR32fV+HuKYVI8Phi6anY4bCYxw5vQ8U+79bar55jaJhh7w2laPvJLIPsIPypcBljL yubnW1HE11FrkF5x5dwtP9QrgE0wzTSF/rCXnyGOboStBQawFe7rrvhqLlfA1S9Mhr3b fgYIWRZJYIVl1Vlg1yOpCk03RsLFVqK69m358RB094ZCmPhTimCTVtxHGl0M4Z+dtUX0 5kffQdthloJTSXFPcKncP54dkoVC+dAZSv9zorwqlFriGineQ/rzZAy3l+zZJt06zy7M T8Nw== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@fb.com header.s=facebook header.b=lblLDBr1; dkim=pass header.i=@fb.onmicrosoft.com header.s=selector2-fb-onmicrosoft-com header.b=JXpnxhep; arc=pass (i=1 spf=pass spfdomain=fb.com dkim=pass dkdomain=fb.com dmarc=pass fromdomain=fb.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=fb.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id ce2si16545163edb.26.2020.04.17.15.42.02; Fri, 17 Apr 2020 15:42:25 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@fb.com header.s=facebook header.b=lblLDBr1; dkim=pass header.i=@fb.onmicrosoft.com header.s=selector2-fb-onmicrosoft-com header.b=JXpnxhep; arc=pass (i=1 spf=pass spfdomain=fb.com dkim=pass dkdomain=fb.com dmarc=pass fromdomain=fb.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=fb.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728984AbgDQWjH (ORCPT + 99 others); Fri, 17 Apr 2020 18:39:07 -0400 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:14012 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728770AbgDQWjG (ORCPT ); Fri, 17 Apr 2020 18:39:06 -0400 Received: from pps.filterd (m0001303.ppops.net [127.0.0.1]) by m0001303.ppops.net (8.16.0.42/8.16.0.42) with SMTP id 03HMcVHc019592; Fri, 17 Apr 2020 15:38:33 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=date : from : to : cc : subject : message-id : references : content-type : in-reply-to : mime-version; s=facebook; bh=8awsTdtUXUkacfl7t6lf7HqPpjb5Hk45wGMQI1xpF68=; b=lblLDBr1GvRLfQbu3KNaOfZLEqdgbNoIQNAOUV8ZBuI85tVe+DtLSQAZuyVp5B2Unbj0 kiU80TT6BN8rO0yGLwTjcZ85Obc+lNDErtRLFcQVS/yy5VfwJ0zzA3qymmj2vOD31JrH iTTYWnZY/J0NxW8fjNitlsd0Jh6d+L95kws= Received: from mail.thefacebook.com ([163.114.132.120]) by m0001303.ppops.net with ESMTP id 30em7utsxy-4 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Fri, 17 Apr 2020 15:38:33 -0700 Received: from NAM12-DM6-obe.outbound.protection.outlook.com (100.104.98.9) by o365-in.thefacebook.com (100.104.94.199) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1847.3; Fri, 17 Apr 2020 15:38:31 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=LsGHhyOtmKznwUo37T/xur5NZlmf0OD7wkuZhlj/bvSByNnZ1AMLLaujyteSuD9kWZrtUdTtTrZn6EqKxiwrKRQEEgLeiw1Np0FM/50ogtLfQD7b1RPmFC0dXkqJfTxiuzVM6FuTiTjnavEZcu2APAwqJyAqX0OftnhXiF84atNO7Iq93aIrSvTgPE+p7EfKeMturXSZ+zSHJW7m1mz6BOR3WESk+XYOz7XE8/6Xnz4gwbB6SbdmYAKiS0hmx02fXOk17bbiVWAvNYmkFx5gABNfu9K/0J7JsojN6hkdfhbIYcbUZkWPz2dyeme5P5jkzdv34seP34ZagMCt/x+DtA== 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:X-MS-Exchange-SenderADCheck; bh=8awsTdtUXUkacfl7t6lf7HqPpjb5Hk45wGMQI1xpF68=; b=ZadIrsWnDcM2zVpCQ8w7sOo/v5SYUcpDdrOMTZo/eS2GkyHrAGWkVT8VBXQ199QJxzezFJP6N70CyMUptauz+cWe+x731grFKLgs/SHyTQnzs0HASQdQCn2Bho15gJzOVFOP8Mx8TKCI95D1DmTteqRT72eM5XRIpupsikwZ+2vneXxeWnfLn/COpTSFgu3Td+83uBhkvnqZVBFaAZWQoRE6d1u416XmKyWxJc4bpZQLwoVMNetJAAx0TXs37MFTBOjV9Fed3XFmwkU4bBzKXU9PxLN14TAyLPVcvqCu4XBPvaH1gy6cIV4cheHKVpwxetM/bmxzmmVEBn+hrbvMUA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=fb.com; dmarc=pass action=none header.from=fb.com; dkim=pass header.d=fb.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.onmicrosoft.com; s=selector2-fb-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=8awsTdtUXUkacfl7t6lf7HqPpjb5Hk45wGMQI1xpF68=; b=JXpnxhepp3LbjY7/w/FTKIYV6PwpZ1OwyQ4M669ytO/YqNd4+s/RMnSMwQ6JIcHmwMZxf8XsHPxzgzYS6qDpbdfGivzrlTdsTiVgnwgauPaPPOjbTVCct5cW/rR9ZbXf9YuCZiBpBqnId+tDmrrxOikHUN9V3AMvnPKHnkD5BkQ= Received: from BYAPR15MB4119.namprd15.prod.outlook.com (2603:10b6:a02:cd::20) by BYAPR15MB3333.namprd15.prod.outlook.com (2603:10b6:a03:10c::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2921.29; Fri, 17 Apr 2020 22:38:30 +0000 Received: from BYAPR15MB4119.namprd15.prod.outlook.com ([fe80::90d6:ec75:fde:e992]) by BYAPR15MB4119.namprd15.prod.outlook.com ([fe80::90d6:ec75:fde:e992%7]) with mapi id 15.20.2900.028; Fri, 17 Apr 2020 22:38:30 +0000 Date: Fri, 17 Apr 2020 15:38:28 -0700 From: Andrey Ignatov To: Matthew Wilcox CC: Christoph Hellwig , Kees Cook , Iurii Zaikin , Luis Chamberlain , Greg Kroah-Hartman , "Rafael J. Wysocki" , Alexei Starovoitov , Daniel Borkmann , , , , , Subject: Re: [PATCH 6/6] sysctl: pass kernel pointers to ->proc_handler Message-ID: <20200417223828.GA41441@rdna-mbp> References: <20200417064146.1086644-1-hch@lst.de> <20200417064146.1086644-7-hch@lst.de> <20200417193910.GA7011@rdna-mbp> <20200417195015.GO5820@bombadil.infradead.org> Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20200417195015.GO5820@bombadil.infradead.org> User-Agent: Mutt/1.12.1 (2019-06-15) X-ClientProxiedBy: CO2PR05CA0078.namprd05.prod.outlook.com (2603:10b6:102:2::46) To BYAPR15MB4119.namprd15.prod.outlook.com (2603:10b6:a02:cd::20) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost (2620:10d:c090:400::5:6540) by CO2PR05CA0078.namprd05.prod.outlook.com (2603:10b6:102:2::46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2937.6 via Frontend Transport; Fri, 17 Apr 2020 22:38:29 +0000 X-Originating-IP: [2620:10d:c090:400::5:6540] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 61d6c455-2065-4947-97ef-08d7e3200d51 X-MS-TrafficTypeDiagnostic: BYAPR15MB3333: X-Microsoft-Antispam-PRVS: X-FB-Source: Internal X-MS-Oob-TLC-OOBClassifiers: OLM:519; X-Forefront-PRVS: 0376ECF4DD X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BYAPR15MB4119.namprd15.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(10019020)(7916004)(136003)(346002)(366004)(376002)(396003)(39860400002)(1076003)(316002)(7416002)(16526019)(86362001)(186003)(54906003)(4744005)(81156014)(8676002)(8936002)(52116002)(33656002)(66946007)(66556008)(478600001)(6486002)(6496006)(6916009)(66476007)(5660300002)(4326008)(33716001)(9686003)(2906002);DIR:OUT;SFP:1102; Received-SPF: None (protection.outlook.com: fb.com does not designate permitted sender hosts) X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: IZgbSAktu/lNtxM70jMH4ZCg3RCH8ymHj/uzYjYPigDjjXARF7v2ImyU3yrvaSqSW/hN+ZQML306UDT0vrR/4lK6uneWLzlXmLxu7AoKcqQz8kKEWePDtiBw+8bdeWiGLGLb8kWOQQIkVmOWmjC48oYs9gz0fEPyZsBw4aSDxl3hnikQRvw2XqwnSW7fi7OmoTlyxqd11iF2k3DJFD0kkpnmg067Pdl7NGRBT9BK91Tk8WRfD1E7MJmJc9DIHInEdQiY12ZVPyzI4W5C7R+6IOXaix5E6+f1TpZDYGZaw8dKp7ZRtGdRotOz6C1qh4ZLMFN+xyK6VujCr9jqRhFXtWlQwbA+ntMdTHhUp+8BS4sSZx2PS7oFMjwJeSEd6kjTgVHGRAnUF7WdoXIVaQwaKEQuL9k7m7axCSC4g2vXs0LkRJklJHNYa8VjnvPBYxS3 X-MS-Exchange-AntiSpam-MessageData: S150+3KneqW/WeFesQtLePM0Ez74L4EQSxoVLPM+8H08AylhjujfgF+Frp/h57dFdnuGF7HGcYgvHIehZ4eVj8PNrLS78tKi0dhy2OKmCxqOqwtEWcM88n/Rj8LIaVJe8Bj02MA4mO0SPeyOKdyIzPp8igUlzk+jInflV52WTuKD1ua5mPOKkhfj3tk9E5+b X-MS-Exchange-CrossTenant-Network-Message-Id: 61d6c455-2065-4947-97ef-08d7e3200d51 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Apr 2020 22:38:30.2691 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: bu7PZ9VjFlyqfhXpkMd6fzQyWlrunnpjTyF3Nhjy35+QGqIBieWRqlOtdwBp8xwp X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR15MB3333 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.676 definitions=2020-04-17_10:2020-04-17,2020-04-17 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 bulkscore=0 adultscore=0 impostorscore=0 mlxscore=0 lowpriorityscore=0 clxscore=1011 malwarescore=0 suspectscore=0 priorityscore=1501 phishscore=0 spamscore=0 mlxlogscore=886 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004170166 X-FB-Internal: deliver Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Matthew Wilcox [Fri, 2020-04-17 12:50 -0700]: > On Fri, Apr 17, 2020 at 12:39:10PM -0700, Andrey Ignatov wrote: > > Though it breaks tools/testing/selftests/bpf/test_sysctl.c. I spent some > > time debugging and found a couple of problems -- see below. But there is > > something else .. Still I figured it's a good idea to give an early > > heads-up. > > "see below"? Really? You're going to say that and then make people > scroll through thousands of lines of quoted material to find your new > contributions? Please, learn to trim appropriately. Ack. > > Here's about what you should have sent: Thanks. -- Andrey Ignatov