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=-5.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, 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 D9392C433E6 for ; Tue, 23 Feb 2021 20:53:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A7E5960233 for ; Tue, 23 Feb 2021 20:53:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234547AbhBWUwu (ORCPT ); Tue, 23 Feb 2021 15:52:50 -0500 Received: from mail2.protonmail.ch ([185.70.40.22]:34858 "EHLO mail2.protonmail.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234482AbhBWUub (ORCPT ); Tue, 23 Feb 2021 15:50:31 -0500 Date: Tue, 23 Feb 2021 20:49:42 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pm.me; s=protonmail; t=1614113387; bh=b6K9n2VrdVy+2EiLHTIR/SAICycUS8q6OJquatFdjug=; h=Date:To:From:Cc:Reply-To:Subject:In-Reply-To:References:From; b=V3Nj1iHilz85jaB1r1udLi5FbvC8cqqO6yRX9+QjO7QecGboRyW0D1GZtq2xzFS5b FgBz7QSohCnqLIdOiOkAdbqj7ls+3FydUEAeM/llXLiFZJ/fKliW8a+dKpK1rWrcwS 2VS/0evLOQY8GryR32TWPmxqCI5L/grxeNXtTaCPnAvlH8l50DZqYde2g3gBFd4luX QOqalW3kSY+E8O0s/ulEsn73LXPN8tMDfydAmpEaZuinIqTLfvZqI4Sjf4olAA6BOl jBfnkaM+NeeBNehRwc3J6VuMz3XSbLMWLDYg43npBLgiRUE4lXksWObyc2yXJJyRXf oZuvVpEbAFGEQ== To: Linus Torvalds From: Alexander Lobakin Cc: Alexander Lobakin , Kees Cook , Linux Kernel Mailing List , Sami Tolvanen , Bill Wendling , Bjorn Helgaas , George Burgess IV , Nick Desaulniers , Steven Rostedt , Will Deacon Reply-To: Alexander Lobakin Subject: Re: [GIT PULL v2] clang-lto for v5.12-rc1 Message-ID: <20210223204919.549167-1-alobakin@pm.me> In-Reply-To: References: <202102221504.0418BE2D1@keescook> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Linus Torvalds Date: Tue, 23 Feb 2021 12:33:05 -0800 > On Tue, Feb 23, 2021 at 9:49 AM Linus Torvalds > wrote: > > > > On Mon, Feb 22, 2021 at 3:11 PM Kees Cook wrote= : > > > > > > While x86 LTO enablement is done[1], it depends on some objtool > > > clean-ups[2], though it appears those actually have been in linux-nex= t > > > (via tip/objtool/core), so it's possible that if that tree lands [..] > > > > That tree is actually next on my list of things to merge after this > > one, so it should be out soonish. > > "soonish" turned out to be later than I thought, because my "build > changes" set of pulls included the module change that I then wasted a > lot of time on trying to figure out why it slowed down my build so > much. I guess it's about CONFIG_TRIM_UNUSED_KSYMS you disabled in your tree. Well, it's actually widely used, mostly in the embedded world where there are often no out-of-tree modules, but a need to save as much space as possible. For full-blown systems and distributions it's almost needless, right. > But it's out now, as pr-tracker-bot already noted. > > Linus Thanks, Al