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=-3.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT autolearn=ham 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 442C4C43387 for ; Wed, 16 Jan 2019 19:33:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 138AF20873 for ; Wed, 16 Jan 2019 19:33:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1547667189; bh=Vdlpr3xWXRp0hHLkO7XaJ4FfFENPLgBnpTe/ZvndQEA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=M6zN9KoV8Z3fTaP018UWM0K+wXb7DlfgUP5OM4YZXMykGlbRD5cDBAYsgyM+h/ANM wqZ3ydFVRpnN5Cdv2xCd387lyUi0PTCuwkVZMRpLBRne+gW9nUS3R6p+7SDnzOmSFk JlC3JNkBihXpqKuzEzmPRavk3n8XWAzdHIj+Aa3A= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731236AbfAPTdI (ORCPT ); Wed, 16 Jan 2019 14:33:08 -0500 Received: from mail.kernel.org ([198.145.29.99]:45378 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730949AbfAPTdI (ORCPT ); Wed, 16 Jan 2019 14:33:08 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (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 3418520868; Wed, 16 Jan 2019 19:33:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1547667187; bh=Vdlpr3xWXRp0hHLkO7XaJ4FfFENPLgBnpTe/ZvndQEA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=SlzqScfrraBOTJiR+tB57n9hMQ1t9jm53tgQcTejiYNC7L/x72CZ8JnFQ9bXB3r2T xCZo3PbF0lHS3bb8J/K8I3+h9uHusnJoYoiHcoiy60InA/+BjngW2t7/Bk1PIT2i1a muITHrUizVNe37rdc/lnpryJQHVMDU4ZoT58oBuk= Date: Wed, 16 Jan 2019 20:33:05 +0100 From: Greg KH To: David Long Cc: Russell King - ARM Linux admin , stable@vger.kernel.org, Florian Fainelli , Julien Thierry , Tony Lindgren , Marc Zyngier , Mark Rutland , Mark Brown Subject: Re: [PATCH 4.14 00/17] V4.14 backport of more 32-bit arm spectre patches Message-ID: <20190116193305.GA6175@kroah.com> References: <20190110175150.5239-1-dave.long@linaro.org> <20190115154547.GA29144@kroah.com> <20190115163051.GA20323@kroah.com> <20190115170659.6gcgg32hpljmkzvs@e5254000004ec.dyn.armlinux.org.uk> <20190115171931.GA30853@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.11.2 (2019-01-07) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Wed, Jan 16, 2019 at 02:27:13PM -0500, David Long wrote: > On 1/15/19 12:19 PM, Greg KH wrote: > > On Tue, Jan 15, 2019 at 05:06:59PM +0000, Russell King - ARM Linux admin wrote: > > > On Tue, Jan 15, 2019 at 05:30:51PM +0100, Greg KH wrote: > > > > On Tue, Jan 15, 2019 at 11:07:08AM -0500, David Long wrote: > > > > > On 1/15/19 10:45 AM, Greg KH wrote: > > > > > > On Thu, Jan 10, 2019 at 12:51:33PM -0500, David Long wrote: > > > > > > > From: "David A. Long" > > > > > > > > > > > > > > V4.14 backport of spectre patches from Russell M. King's spectre branch. > > > > > > > > > > > > If I take these, than 4.19 is vulnerable. So someone upgrading from > > > > > > 4.14 to 4.19 will regress :( > > > > > > > > > > > > Can you please send me a 4.19 series so I can apply that before this > > > > > > one? > > > > > > > > > > > > thanks, > > > > > > > > > > > > greg k-h > > > > > > > > > > > > > > > > > > > > > OK, didn't think about that being a problem. Working on it. Pretty sure > > > > > there's exactly one patch needed for that. > > > > > > > > one? All of these except one showed up in 4.20 and were not backported > > > > to 4.19 from what I can tell. The last one is in 5.0-rc1 and not even > > > > backported to 4.20 either, which means someone messed up and didn't tag > > > > it properly with a cc: stable patch :( > > > > > My bad, I see now I was looking at v4.20 when I made that comment, not > v4.19. > > > > Or they didn't think it was important enough to warrant backporting. > > > > Fair enough, then I have to ask why it's included in this series at > > all... > > > > I've been backporting all "spectre" branch patches as kept in the linux-arm > repo, with the assumption they're all important. If the last patch is not > deemed worthy of going into stable now would be a good time to declare it so > as I have patch sets for v4.19 and v4.9 stable versions about ready to > publish. Isn't it up to you to determine what is and is not important to get this all working properly? You are testing all of this, right? :) thanks, greg k-h