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 X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F3C46C433E1 for ; Fri, 17 Jul 2020 08:02:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CD19220775 for ; Fri, 17 Jul 2020 08:02:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594972940; bh=pEmoznDf9gF70xYZ0kn/H4fgKmERVzSDzcKBW/BAJt8=; h=Date:From:To:Cc:Subject:In-Reply-To:References:List-ID:From; b=OHWnJ2LIDx2LL2B8YRrfrN0Zx00XybeKzyVDlcSfv5PeGPl+FuunFUHVUzyaiOzl8 8+KoV1iZREHiQv8/LXm9Tf70/lW7lmMLWwp8NQeefAvLF+FLaKFgJUJPXMlQxXkbSt Hb5wl8ZGO6H/rpmX2EYKYuakCN1pS4e4dwH/3hxQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728220AbgGQICN (ORCPT ); Fri, 17 Jul 2020 04:02:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:48790 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727853AbgGQICI (ORCPT ); Fri, 17 Jul 2020 04:02:08 -0400 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id AC4DB20704; Fri, 17 Jul 2020 08:02:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594972927; bh=pEmoznDf9gF70xYZ0kn/H4fgKmERVzSDzcKBW/BAJt8=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=U3CS3Xz68p3vMXm1ko7gqCHBUTMYtSJ2y3amw8cf43q4XBPBdLTbXiMR6nm5+B+xs zuCl6k3g9Tms9B+8ir1h39MMAfWw8FwF4awBmUlf5gF7g7HksMyaMw+gEa8T3vR+mu i7UWlXt9CTD11QJ7cTGnSTHWElXfzXmw9tvfeW+0= Received: from disco-boy.misterjones.org ([51.254.78.96] helo=www.loen.fr) by disco-boy.misterjones.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.92) (envelope-from ) id 1jwLJm-00CYk1-7g; Fri, 17 Jul 2020 09:02:06 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Fri, 17 Jul 2020 09:02:06 +0100 From: Marc Zyngier To: Greg KH Cc: stable@vger.kernel.org, arnd@arndb.de, sashal@kernel.org, naresh.kamboju@linaro.org, Mark Rutland , Will Deacon , Catalin Marinas , Daniel Lezcano , Vincenzo Frascino , Russell King , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel-team@android.com Subject: Re: [Stable-5.4][PATCH 0/3] arm64: Allow the compat vdso to be disabled at runtime In-Reply-To: <20200716115813.GB1668009@kroah.com> References: <20200715125614.3240269-1-maz@kernel.org> <20200716115813.GB1668009@kroah.com> User-Agent: Roundcube Webmail/1.4.5 Message-ID: X-Sender: maz@kernel.org X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: gregkh@linuxfoundation.org, stable@vger.kernel.org, arnd@arndb.de, sashal@kernel.org, naresh.kamboju@linaro.org, mark.rutland@arm.com, will@kernel.org, catalin.marinas@arm.com, daniel.lezcano@linaro.org, vincenzo.frascino@arm.com, linux@arm.linux.org.uk, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel-team@android.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org Hi Greg, On 2020-07-16 12:58, Greg KH wrote: > On Wed, Jul 15, 2020 at 01:56:11PM +0100, Marc Zyngier wrote: >> This is a backport of the series that recently went into 5.8. Note >> that the first patch is more a complete rewriting than a backport, as >> the vdso implementation in 5.4 doesn't have much in common with >> mainline. This affects the 32bit arch code in a benign way. >> >> It has seen very little testing, as I don't have the HW that triggers >> this issue. I have run it in VMs by faking the CPU MIDR, and nothing >> caught fire. Famous last words. > > These are also needed in 5.7.y, right? If so, I need that series > before > I can take this one as we don't want people moving to a newer kernel > and > suffer regressions :( The original mainline changes: 4b661d6133c5 arm64: arch_timer: Disable the compat vdso for cores affected by ARM64_WORKAROUND_1418040 c1fbec4ac0d7 arm64: arch_timer: Allow an workaround descriptor to disable compat vdso 97884ca8c292 arm64: Introduce a way to disable the 32bit vdso do apply cleanly to stable-5.7. Do you want me to resend them separately, or will you pick the patches directly from mainline? Thanks, M. -- Jazz is not dead. It just smells funny...