From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id C0DD1C43219 for ; Sat, 8 Oct 2022 21:54:06 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 1D41D6B0071; Sat, 8 Oct 2022 17:54:06 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 15DE16B0073; Sat, 8 Oct 2022 17:54:06 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id EF1956B0074; Sat, 8 Oct 2022 17:54:05 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id D700C6B0071 for ; Sat, 8 Oct 2022 17:54:05 -0400 (EDT) Received: from smtpin17.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 5958C140675 for ; Sat, 8 Oct 2022 21:54:05 +0000 (UTC) X-FDA: 79999135650.17.13A1C7E Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.85.151]) by imf22.hostedemail.com (Postfix) with ESMTP id AC805C0023 for ; Sat, 8 Oct 2022 21:54:02 +0000 (UTC) Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-322-B0KkuonxN4-iDxIJpOcDbw-1; Sat, 08 Oct 2022 22:53:36 +0100 X-MC-Unique: B0KkuonxN4-iDxIJpOcDbw-1 Received: from AcuMS.Aculab.com (10.202.163.6) by AcuMS.aculab.com (10.202.163.6) with Microsoft SMTP Server (TLS) id 15.0.1497.38; Sat, 8 Oct 2022 22:53:33 +0100 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.040; Sat, 8 Oct 2022 22:53:33 +0100 From: David Laight To: "'Jason A. Donenfeld'" , Kees Cook CC: Christophe Leroy , "linux-kernel@vger.kernel.org" , "patches@lists.linux.dev" , Andreas Noever , Andrew Morton , "Andy Shevchenko" , Borislav Petkov , Catalin Marinas , =?utf-8?B?Q2hyaXN0b3BoIELDtmhtd2FsZGVy?= , Christoph Hellwig , Daniel Borkmann , "Dave Airlie" , Dave Hansen , "David S . Miller" , Eric Dumazet , Florian Westphal , Greg Kroah-Hartman , "H . Peter Anvin" , "Heiko Carstens" , Helge Deller , Herbert Xu , Huacai Chen , "Hugh Dickins" , Jakub Kicinski , "James E . J . Bottomley" , Jan Kara , Jason Gunthorpe , Jens Axboe , Johannes Berg , Jonathan Corbet , "Jozsef Kadlecsik" , KP Singh , Marco Elver , Mauro Carvalho Chehab , "Michael Ellerman" , Pablo Neira Ayuso , "Paolo Abeni" , Peter Zijlstra , "Richard Weinberger" , Russell King , "Theodore Ts'o" , Thomas Bogendoerfer , "Thomas Gleixner" , Thomas Graf , Ulf Hansson , Vignesh Raghavendra , WANG Xuerui , Will Deacon , Yury Norov , "dri-devel@lists.freedesktop.org" , "kasan-dev@googlegroups.com" , "kernel-janitors@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-block@vger.kernel.org" , "linux-crypto@vger.kernel.org" , "linux-doc@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-media@vger.kernel.org" , "linux-mips@vger.kernel.org" , "linux-mm@kvack.org" , "linux-mmc@vger.kernel.org" , "linux-mtd@lists.infradead.org" , "linux-nvme@lists.infradead.org" , "linux-parisc@vger.kernel.org" , "linux-rdma@vger.kernel.org" , "linux-s390@vger.kernel.org" , "linux-um@lists.infradead.org" , "linux-usb@vger.kernel.org" , "linux-wireless@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" , "loongarch@lists.linux.dev" , "netdev@vger.kernel.org" , "sparclinux@vger.kernel.org" , "x86@kernel.org" , =?utf-8?B?VG9rZSBIw7hpbGFuZC1Kw7hyZ2Vuc2Vu?= , Chuck Lever , Jan Kara Subject: RE: [PATCH v3 3/5] treewide: use get_random_u32() when possible Thread-Topic: [PATCH v3 3/5] treewide: use get_random_u32() when possible Thread-Index: AQHY2nYZ0LDp17FxT0u8eu+L+6kCF64FCBzw Date: Sat, 8 Oct 2022 21:53:33 +0000 Message-ID: <69080fb8cace486db4e28e2e90f1d550@AcuMS.aculab.com> References: <20221006165346.73159-1-Jason@zx2c4.com> <20221006165346.73159-4-Jason@zx2c4.com> <848ed24c-13ef-6c38-fd13-639b33809194@csgroup.eu> <6396875c-146a-acf5-dd9e-7f93ba1b4bc3@csgroup.eu> <501b0fc3-6c67-657f-781e-25ee0283bc2e@csgroup.eu> <202210071010.52C672FA9@keescook> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 ARC-Authentication-Results: i=1; imf22.hostedemail.com; dkim=none; spf=pass (imf22.hostedemail.com: domain of david.laight@aculab.com designates 185.58.85.151 as permitted sender) smtp.mailfrom=david.laight@aculab.com; dmarc=pass (policy=none) header.from=aculab.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1665266044; a=rsa-sha256; cv=none; b=rD3tnPgGbpZO0PelBEsX6EXQoNYNtH5G4yrPXkd4QewfCDBCb/2lVNyXPEm9Pw8mi4bXf1 vfEUwAyF84eMcYdDcF94/R3ZFVplxvIH+sYBKoa7+w3F5MJ50fU+ZkinCfbYpDg2iuQ6iz F+hvTjsvf1ytMNsemAQ5gvkNjDh1iSA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1665266044; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hb0VXCKLruF+ZNpCZzbOy07uBh6U/F7RD9v4TsKga4I=; b=op53iDZvLOzfwUjVSDxn7ytCFOU0mYnPMmbtLqwW9P4Gk2IxkqdRC7tBHcQbx0we65fZEr W7ffZusz4qVYnDDke2riAh+bMuTgjK87EhEcLvF2AZsBqZITvUmXAOokZ3/IcvkS0oGF+o MKHqA1WDGDeF0UsMWpMqQHNFF8O1V+I= X-Rspamd-Queue-Id: AC805C0023 X-Rspam-User: Authentication-Results: imf22.hostedemail.com; dkim=none; spf=pass (imf22.hostedemail.com: domain of david.laight@aculab.com designates 185.58.85.151 as permitted sender) smtp.mailfrom=david.laight@aculab.com; dmarc=pass (policy=none) header.from=aculab.com X-Rspamd-Server: rspam10 X-Stat-Signature: pnu3fwpfzpzjdc9ekuf7z1eg86bo4zow X-HE-Tag: 1665266042-476152 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: RnJvbTogSmFzb24gQS4gRG9uZW5mZWxkDQo+IFNlbnQ6IDA3IE9jdG9iZXIgMjAyMiAxODo1Ng0K Li4uDQo+ID4gR2l2ZW4gdGhlc2Uga2luZHMgb2YgbGVzcyBtZWNoYW5pY2FsIGNoYW5nZXMsIGl0 IG1heSBtYWtlIHNlbnNlIHRvIHNwbGl0DQo+ID4gdGhlc2UgZnJvbSB0aGUgInRyaXZpYWwiIGNv bnZlcnNpb25zIGluIGEgdHJlZXdpZGUgcGF0Y2guIFRoZSBjaGFuY2Ugb2YNCj4gPiBuZWVkaW5n IGEgcmV2ZXJ0IGZyb20gdGhlIHNpbXBsZSAxOjEgY29udmVyc2lvbnMgaXMgbXVjaCBsb3dlciB0 aGFuIHRoZQ0KPiA+IG5lZWQgdG8gcmV2ZXJ0IGJ5LWhhbmQgY2hhbmdlcy4NCj4gPg0KPiA+IFRo ZSBDb2NjaSBzY3JpcHQgSSBzdWdnZXN0ZWQgaW4gbXkgdjEgcmV2aWV3IGdldHMgODAlIG9mIHRo ZSBmaXJzdA0KPiA+IHBhdGNoLCBmb3IgZXhhbXBsZS4NCj4gDQo+IEknbGwgc3BsaXQgdGhpbmdz IHVwIGludG8gYSBtZWNoYW5pY2FsIHN0ZXAgYW5kIGEgbm9uLW1lY2hhbmljYWwgc3RlcC4NCj4g R29vZCBpZGVhLg0KDQpJJ2QgYWxzbyBkbyBzb21ldGhpbmcgYWJvdXQgdGhlICdnZXRfcmFuZG9t X2ludCgpICYgMycgY2FzZXMuDQooaWUgcmVtYWluZGVyIGJ5IDJebi0xKQ0KVGhlc2UgY2FuIGJl IGNvbnZlcnRlZCB0byAnZ2V0X3JhbmRvbV91OCgpICYgMycgKGV0YykuDQpTbyB0aGV5IG9ubHkg bmVlZCBvbmUgcmFuZG9tIGJ5dGUgKG5vdCA0KSBhbmQgbm8gbXVsdGlwbHkuDQoNClBvc3NpYmx5 IHNvbWV0aGluZyBiYXNlZCBvbiAodGhlIHF1aWNrbHkgdHlwZWQsIGFuZCBub3QgQyk6DQojZGVm aW5lIGdldF9yYW5kb21fYmVsb3codmFsKSBbDQoJaWYgKGJ1aWx0aW5fY29uc3RhbnQodmFsKSkN CgkJQlVJTERfQlVHX09OKCF2YWwgfHwgdmFsID4gMHgxMDAwMDAwMDB1bGwpDQoJCWlmICghKHZh bCAmICh2YWwgLSAxKSkgew0KCQkJaWYgKHZhbCA8PSAweDEwMCkNCgkJCQlyZXR1cm4gZ2V0X3Jh bmRvbV91OCgpICYgKHZhbCAtIDEpOw0KCQkJaWYgKHZhbCA8PSAweDEwMDAwKQ0KCQkJCXJldHVy biBnZXRfcmFuZG9tX3UxNigpICYgKHZhbCAtIDEpOw0KCQkJcmV0dXJuIGdldF9yYW5kb21fdTMy KCkgJiAodmFsIC0gMSk7DQoJCX0NCgl9DQoJQlVJTERfQlVHX09OKHNpemVvZiAodmFsKSA+IDQp Ow0KCXJldHVybiAoKHU2NClnZXRfcmFuZG9tX3UzMigpICogdmFsKSA+PiAzMjsNCn0NCg0KZ2V0 X3JhbmRvbV9iZWxvdygpIGlzIGEgbXVjaCBiZXR0ZXIgbmFtZSB0aGFuIHByYW5kb21fdTMyX21h eCgpLg0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExha2VzaWRlLCBCcmFtbGV5 IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQsIFVLDQpSZWdpc3RyYXRp b24gTm86IDEzOTczODYgKFdhbGVzKQ0K