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[23.128.96.33]) by mx.google.com with ESMTPS id d14-20020aa7868e000000b0068fcb9a734fsi1888465pfo.46.2023.09.14.11.01.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Sep 2023 11:01:57 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.33 as permitted sender) client-ip=23.128.96.33; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20230601 header.b=mdbvZyvM; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.33 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by lipwig.vger.email (Postfix) with ESMTP id 3DC7B8296F23; Thu, 14 Sep 2023 09:34:47 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at lipwig.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231339AbjINQei (ORCPT + 99 others); Thu, 14 Sep 2023 12:34:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44124 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229568AbjINQeg (ORCPT ); Thu, 14 Sep 2023 12:34:36 -0400 Received: from mail-qt1-x832.google.com (mail-qt1-x832.google.com [IPv6:2607:f8b0:4864:20::832]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 661861FD7 for ; Thu, 14 Sep 2023 09:34:32 -0700 (PDT) Received: by mail-qt1-x832.google.com with SMTP id d75a77b69052e-4179632293bso546131cf.3 for ; Thu, 14 Sep 2023 09:34:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1694709271; x=1695314071; darn=vger.kernel.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=XASZo9YTM/nTEYGFKuVlo/54fQU/sete5YVGxHMmtGE=; b=mdbvZyvMdLIvnMHhVmoG88SMm/RcUNndMKx/Tvz1ivqFfd73zAIwVmNCvVmRmIPV1K mjUS2+h/SQd3OUmYMN/SlRHP5rOR1DvVwGirIL7XFr6GwtbSC2u97h+EpcQZBfxZ/4g+ wQcAlDi/TsG5mf80MV3bYIT1aa5zpPDlASBRpEn7cCRb0/GC/0RkZ41IM98BkqyxUkMl 14tBUveULhtF0QaOd/FH/1+9tcb/QSJuAJERXIOxLgE01xjT2n7wYpjzVDG1nQflDpIm K6qFONMowmL8Veek8N0rpUVx2Jm/yEZNPiHlbaunLKuZebR8aEVAgDqrOHOsZdWozZew tiPA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694709271; x=1695314071; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=XASZo9YTM/nTEYGFKuVlo/54fQU/sete5YVGxHMmtGE=; b=XL1/OV8te/cvi19EByGm9cL6qEEWCTyULjstUm/XrZMAvhxGQm4KzUFyK5eNiAAQLr rUfBMmrqSs995iLhxxZtk62+2a/JXUp/dEn+mj55TBTrmooqDxbi4ndM7Yhq8Gntvv85 enbv5h0jSDyNy7CS5FW9zpPmFE9X4ObCUIxCxDDR6Y8YLcY1ujkgKFFo+U59w2oZYjHO 7zaL1HWLK5qCfg/gb+3woS8KHF22WAActo1m/hdqutiG/nnTAWsynDNzoFYjfKWLudkd cdNtipyhbJ1Z+2wAjZk0id0ar2rXKAUNo6GNvXIcct1wmzu2neCwjgqVmKmx6aBl3jXp nqIA== X-Gm-Message-State: AOJu0YzYCkXH9m7y2iRTL3h2nXWI8leBWuEUlMMRiEIXbg/tVXT3EIBB /G9e+3T3euWJJD3j6Bpahp6XMuHyhbSf2FWPPeRWzw== X-Received: by 2002:a05:6214:12e:b0:64f:59b8:cfd9 with SMTP id w14-20020a056214012e00b0064f59b8cfd9mr5860447qvs.18.1694709271421; Thu, 14 Sep 2023 09:34:31 -0700 (PDT) MIME-Version: 1.0 References: <20230908231244.1092614-1-song@kernel.org> In-Reply-To: From: Nick Desaulniers Date: Thu, 14 Sep 2023 09:34:17 -0700 Message-ID: Subject: Re: [PATCH v2] x86/purgatory: Remove LTO flags To: Song Liu Cc: linux-kernel@vger.kernel.org, Ricardo Ribalda , Sami Tolvanen , kexec@lists.infradead.org, x86@kernel.org, llvm@lists.linux.dev Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Thu, 14 Sep 2023 09:34:47 -0700 (PDT) X-Spam-Status: No, score=-8.4 required=5.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email On Thu, Sep 14, 2023 at 9:31=E2=80=AFAM Song Liu wrote: > > What would be the next step for this work? We hope to back port it > to our production kernel soon. Please send a v3 with the fixes tag updated. I wouldn't mind if you added a comment to the commit message to the effect of: We could also add the use of an explicit linker script to rejoin .text.* sections back into .text. Simply disable the production of more .text.* sections for now; -flto* implies -ffunction-sections. --=20 Thanks, ~Nick Desaulniers