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 lists.zx2c4.com (lists.zx2c4.com [165.227.139.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5E6F4C433EF for ; Wed, 29 Jun 2022 18:59:08 +0000 (UTC) Received: by lists.zx2c4.com (OpenSMTPD) with ESMTP id b44d4fd8; Wed, 29 Jun 2022 18:59:06 +0000 (UTC) Received: from ams.source.kernel.org (ams.source.kernel.org [2604:1380:4601:e00::1]) by lists.zx2c4.com (OpenSMTPD) with ESMTPS id 62b1435b (TLSv1.2:ECDHE-ECDSA-AES256-GCM-SHA384:256:NO) for ; Wed, 29 Jun 2022 18:59:05 +0000 (UTC) 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 ams.source.kernel.org (Postfix) with ESMTPS id E7D56B82670; Wed, 29 Jun 2022 18:59:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 81F05C34114; Wed, 29 Jun 2022 18:59:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1656529143; bh=9Tl8nspvMh6ngPRAWw8ovEMp2svi2hp6WG1mQ6AAVYo=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:From; b=GCCzvPBPnAEIapoBICOMeCtDdETDQJcQB/frQSnMZIyx5rVjnLokWQX4yXIp7Iyur ZzmNFroBQL2U3xKOXiCEeqRho2V9tVWrmR6BSBOY6mGvMYdxQ7z9LuxMj/yOL4FmN5 DFOw/qW62U6shjrw5OTJzQUGEUtI7Cyjh+JFqnvYQmlWr5IePQjBlnpjgiRQGecJAn XGmqtmGfYGyhpxaH7kHb9a1431dLdrZvq3zrI8mXK53DiB8+cBCEPmuOReBdCjEUPv LpCYxsUIAX0C3tma7BkcpkbqPsCPWVcxxwox5ZXHsCg/rOHyj+ytdxHAaiGPoHyquX LLnhhs8Ix073w== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id 2A3475C0E5F; Wed, 29 Jun 2022 11:59:03 -0700 (PDT) Date: Wed, 29 Jun 2022 11:59:03 -0700 From: "Paul E. McKenney" To: Greg Kroah-Hartman Cc: "Jason A. Donenfeld" , Christoph Hellwig , Arve =?iso-8859-1?B?SGr4bm5lduVn?= , Todd Kjos , Martijn Coenen , Joel Fernandes , Christian Brauner , Hridya Valsaraju , Suren Baghdasaryan , Theodore Ts'o , "David S. Miller" , Eric Dumazet , Jakub Kicinski , "Alex Xu (Hello71)" , Paolo Abeni , Rob Herring , Frederic Weisbecker , Neeraj Upadhyay , Josh Triplett , Steven Rostedt , Mathieu Desnoyers , Lai Jiangshan , Shuah Khan , LKML , WireGuard mailing list , Netdev , rcu@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH] remove CONFIG_ANDROID Message-ID: <20220629185903.GL1790663@paulmck-ThinkPad-P17-Gen-1> References: <20220629161527.GA24978@lst.de> <20220629163007.GA25279@lst.de> <20220629164543.GA25672@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-BeenThere: wireguard@lists.zx2c4.com X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: paulmck@kernel.org Errors-To: wireguard-bounces@lists.zx2c4.com Sender: "WireGuard" On Wed, Jun 29, 2022 at 07:19:36PM +0200, Greg Kroah-Hartman wrote: > On Wed, Jun 29, 2022 at 07:10:43PM +0200, Jason A. Donenfeld wrote: > > On Wed, Jun 29, 2022 at 07:00:25PM +0200, Greg Kroah-Hartman wrote: [ . . . ] > > That sounds like a false dichotomy. It's not about "fix Android" vs "fix > > distros". What I'm suggesting is fixing Android AND fixing distros, by > > looking at the problem holistically. Trading a bad problem on Android > > (wg connections are broken) for a manageable problem on distros (something > > something theoretical warm boot attack something) doesn't sound like a > > nice trade off. Let's instead get this all fixed at the same time. > > Agreed, so what should we use instead in the wg code? What userspace > functionality are you trying to trigger off of here in the current > CONFIG_ANDROID check? > > The RCU stuff is already handled as Paul has stated, so that's not an > issue. To be fair, one advantage that the RCU stuff has is that it only very recently hit mainline, so people are only just now starting to make use of it. Jason's code has been in for some time, so he has more existing practice to deal with. Thanx, Paul