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=-7.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 72711C433DF for ; Sat, 17 Oct 2020 01:49:04 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E913F2083B for ; Sat, 17 Oct 2020 01:49:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="YAdLQRTM"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=nifty.com header.i=@nifty.com header.b="chx05RkX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E913F2083B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:To:Subject:Message-ID:Date:From:In-Reply-To: References:MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=fk7gn38CW4FRK0e/AAJsRfsizcjjXBGv6T0AC/ZCLTU=; b=YAdLQRTMGRKreJZs2W/F6OlUN yHXObxYpwtRAx0osOkFaims3o95xNKeuLQGznbh1P/7tQp5LqCQlIRNBYgyzs70bbmpr8hZhV4Tiq 85BsYV0htQwIzgoR0Fky6Ssa7DGP43dsOE9TKMKNCl8y844rRDQp54j1kNg74NImrP74xkWBC8YLA 3J6fpNbuxa23C6xgTMlVBY+55ftp3r2jY9U6x6PNhpHrOMX/adf9VWJQ6j9cLaJm+JMKv+Pg7xAkd XJ45HED8OeMDlVBdc3sLfEyoG1ek2Utp39m69hZ6DaWA1Kt+oOIbc1QgQCDk/sF6KYdYkmU18sCU5 zbQHfucRA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kTbJW-0007vz-Sa; Sat, 17 Oct 2020 01:47:18 +0000 Received: from conssluserg-05.nifty.com ([210.131.2.90]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kTbJT-0007vg-2X for linux-arm-kernel@lists.infradead.org; Sat, 17 Oct 2020 01:47:16 +0000 Received: from mail-pj1-f48.google.com (mail-pj1-f48.google.com [209.85.216.48]) (authenticated) by conssluserg-05.nifty.com with ESMTP id 09H1km90006251 for ; Sat, 17 Oct 2020 10:46:48 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conssluserg-05.nifty.com 09H1km90006251 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1602899208; bh=/0ovXshOhxLJmlzp2NpX2ArKIwhaV5c9daLvgg85jsg=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=chx05RkX7GCKZyWpuSLuzUcaboKYmZoSKNbzGUJt0gBUdcrT2qa+LLPe9tQFy3cZ8 pl0jvQqfzdXtfaoOi6Wnzsewt5Q4fjtOQA7rvmShP8uoif8DXJBu5Vvc3SOgeM9D05 Hgd/aTo+tf1kqJ1bST0PafNHogLlTHwNpWOaAiKcJykTMfteinXCh4/xwgZpYB3dZl F9SjcKuk1GdRlzIapbjzlO9Zm1VUXdGHDOTMhpClXmx6qHhoiLn+pehUdUrv7Z6SH7 5auxFgEVmi5TxHkwpq4AghUGA2JM+0nv5kKxxwSfd3yaHhjqm3G0B7iG7We6rQWzZ5 7HgZYEV/GgtOA== X-Nifty-SrcIP: [209.85.216.48] Received: by mail-pj1-f48.google.com with SMTP id a1so2455520pjd.1 for ; Fri, 16 Oct 2020 18:46:48 -0700 (PDT) X-Gm-Message-State: AOAM533QnBfaZdpOHzkgX+CyWQojbS0gxSW3OOhedA9x3Ac1BVrfEeBZ /gK5KB/3dfEsDe7GVlSex6HWdFMDTn5QlhtvBqI= X-Google-Smtp-Source: ABdhPJwnDvT6VOCCvby8Z+dRxKHlAcETSIANPUgxy4yeQxdCEUHUrDGlLwfVIqt5UgjHFKL6uGwJ8RIXqDyJ0U/afPU= X-Received: by 2002:a17:90a:aa91:: with SMTP id l17mr6700984pjq.198.1602899207791; Fri, 16 Oct 2020 18:46:47 -0700 (PDT) MIME-Version: 1.0 References: <20201013003203.4168817-1-samitolvanen@google.com> <20201013003203.4168817-8-samitolvanen@google.com> <202010141541.E689442E@keescook> In-Reply-To: <202010141541.E689442E@keescook> From: Masahiro Yamada Date: Sat, 17 Oct 2020 10:46:10 +0900 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v6 07/25] treewide: remove DISABLE_LTO To: Kees Cook X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201016_214715_446610_4F675845 X-CRM114-Status: GOOD ( 18.46 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch , X86 ML , "Paul E. McKenney" , Kernel Hardening , Peter Zijlstra , Greg Kroah-Hartman , Linux Kbuild mailing list , Nick Desaulniers , Linux Kernel Mailing List , Steven Rostedt , clang-built-linux , Sami Tolvanen , linux-pci@vger.kernel.org, Will Deacon , linux-arm-kernel Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Oct 15, 2020 at 7:43 AM Kees Cook wrote: > > On Mon, Oct 12, 2020 at 05:31:45PM -0700, Sami Tolvanen wrote: > > This change removes all instances of DISABLE_LTO from > > Makefiles, as they are currently unused, and the preferred > > method of disabling LTO is to filter out the flags instead. > > > > Suggested-by: Kees Cook > > Signed-off-by: Sami Tolvanen > > Reviewed-by: Kees Cook > > Hi Masahiro, > > Since this is independent of anything else and could be seen as a > general cleanup, can this patch be taken into your tree, just to > separate it from the list of dependencies for this series? > > -Kees > > -- > Kees Cook Yes, this is stale code because GCC LTO was not pulled. Applied to linux-kbuild. I added the following historical background. Note added by Masahiro Yamada: DISABLE_LTO was added as preparation for GCC LTO, but GCC LTO was not pulled into the mainline. (https://lkml.org/lkml/2014/4/8/272) -- Best Regards Masahiro Yamada _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel