Received: by 2002:a05:6a10:2726:0:0:0:0 with SMTP id ib38csp924806pxb; Wed, 6 Apr 2022 04:27:12 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxutTA32Vy4s4wGlrLTgV5GaNuWmkESjN2McxK+54OwwcAgCykz28Cg8jPcmC6WUVpmVudU X-Received: by 2002:a05:6a00:1da1:b0:4fa:a53d:d0a5 with SMTP id z33-20020a056a001da100b004faa53dd0a5mr8399580pfw.42.1649244432484; Wed, 06 Apr 2022 04:27:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1649244432; cv=none; d=google.com; s=arc-20160816; b=PIH0mhNNYtmoTo22Ih8ZJwEVhWyfLKNDvF3NMHbMR+ZHNvK/nXFeqAtnEB2qoYYb9A Rptj6H5xFKaw5wVy1V4s5SmE6Tm2Bp2KapHxyTGzBuTiDlkdpraa3bmcYZb+ukxo39LO rZHz9DJ8PvTVyYJ6EYUfK24qzzz3sjjcUNYas1pGpNRPw53jdYUdpSIdd5uXjRco+g3a Xs5HCviXzPX9D8SxEFCe/7Wzo5RGswpmWEjsnyUyGmD02SGULIUE1K/FX2eG4KBzTiNq MzcAlpsVb81ikMljpJU/wUMBSfwHEJySO9IYeflp83E7tMlRJYi4C4w7SfTKwgi57AN9 vxlQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:subject:message-id:date:from:in-reply-to :references:mime-version:dkim-signature; bh=OOYm7XyUiyywa+ltOBORW4i/OyBtu6Tfp2IZLFrWre8=; b=iZ34Apv6DL2Isa9PP2gZ4QnIR6Gdhk7PFwUM2qFWZuHhVIbPJhE5Yz/NcCtudDf0Us wcpjW6861S8AXBJfaxnhS2q1yZj8d2tbsASLlpOtsSMgqIBPppJG0TD2vawRafWIPAup 3DP073GotFFWxwNo7GEyayEGDfskoHr8QLGzWqRhVBK6Tp40TZIGrUj5dqdIUCauvikT vJLxqjBbCRKNEqh0P1g1qbgf+bZHlKacsRgwuWNoPcwpfGLeKtU4OtnCdBtJG+SXF2HR epmPin5Wn3yZPrvT5ak53035lzN+67rizJcSNOYM63AeqU9lsSYrt3UH0Ody7jyU+Gx0 IQYQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@zx2c4.com header.s=20210105 header.b=ZxKwp451; spf=softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=zx2c4.com Return-Path: Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net. [23.128.96.19]) by mx.google.com with ESMTPS id u2-20020a056a00158200b004fa3a8e000csi16421470pfk.195.2022.04.06.04.27.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Apr 2022 04:27:12 -0700 (PDT) Received-SPF: softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) client-ip=23.128.96.19; Authentication-Results: mx.google.com; dkim=pass header.i=@zx2c4.com header.s=20210105 header.b=ZxKwp451; spf=softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=zx2c4.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 686404E1CDE; Wed, 6 Apr 2022 02:49:40 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1850141AbiDFCrx (ORCPT + 99 others); Tue, 5 Apr 2022 22:47:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54656 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1584021AbiDEX5u (ORCPT ); Tue, 5 Apr 2022 19:57:50 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 14A4C1FB525; Tue, 5 Apr 2022 15:10:55 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4E59A61793; Tue, 5 Apr 2022 22:10:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4774BC385A1; Tue, 5 Apr 2022 22:10:47 +0000 (UTC) Authentication-Results: smtp.kernel.org; dkim=pass (1024-bit key) header.d=zx2c4.com header.i=@zx2c4.com header.b="ZxKwp451" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zx2c4.com; s=20210105; t=1649196645; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=OOYm7XyUiyywa+ltOBORW4i/OyBtu6Tfp2IZLFrWre8=; b=ZxKwp451Ilh9HPCZJwq1SZiFBMZPAX92jMGZWyiZCln9HYHPJn6pRK4eNttF7GEewHR6oI FhbABoOpf8AMmYFXr2iUSDRZ3+dmLGAYtfDlaixUgAWiVEjS7KdCDCx4zLnMmM/os7wAXc svbUYkBFzkX3xkuzIBQe8SV3C5TutGE= Received: by mail.zx2c4.com (ZX2C4 Mail Server) with ESMTPSA id 00dc344c (TLSv1.3:AEAD-AES256-GCM-SHA384:256:NO); Tue, 5 Apr 2022 22:10:44 +0000 (UTC) Received: by mail-yw1-f172.google.com with SMTP id 00721157ae682-2eb888cf7e7so6683567b3.13; Tue, 05 Apr 2022 15:10:44 -0700 (PDT) X-Gm-Message-State: AOAM532U3NuDM1zKiVSdHaAHdFQZUjDSA4pbzLXss9agVq3ueX8LANZh GAt5t7egxbIsQw56E264djBfKPbfaNlb3/ffWMw= X-Received: by 2002:a0d:e8c6:0:b0:2eb:1a8e:19c4 with SMTP id r189-20020a0de8c6000000b002eb1a8e19c4mr5145140ywe.404.1649196643486; Tue, 05 Apr 2022 15:10:43 -0700 (PDT) MIME-Version: 1.0 References: <20220328111828.1554086-1-sashal@kernel.org> <20220328111828.1554086-16-sashal@kernel.org> In-Reply-To: From: "Jason A. Donenfeld" Date: Wed, 6 Apr 2022 00:10:32 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH AUTOSEL 5.17 16/43] random: use computational hash for entropy extraction To: Sasha Levin , Greg Kroah-Hartman Cc: LKML , stable , "Theodore Ts'o" , Dominik Brodowski , Eric Biggers Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Greg, Sasha, On Tue, Mar 29, 2022 at 7:31 AM Jason A. Donenfeld wrote: > I'm inclined to agree with Eric here that you might be a bit careful > about autosel'ing 5.18, given how extensive the changes were. In > theory they should all be properly sequenced so that nothing breaks, > but I'd still be cautious. However, if you want, maybe we can work out > some plan for backporting. It's still way too early to backport these, but I'll maintain these two branches for a little while: https://git.kernel.org/pub/scm/linux/kernel/git/crng/random.git/log/?h=stable/linux-5.15.y https://git.kernel.org/pub/scm/linux/kernel/git/crng/random.git/log/?h=stable/linux-5.17.y So that when or if it does ever make sense to do that, it's been maintained incrementally while the knowledge is fresh. I'm omitting from those branches new feature development, such as vmgenid. Jason