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[2620:137:e000::1:20]) by mx.google.com with ESMTP id p6-20020a05680811c600b0032e48fdb2ecsi12809259oiv.68.2022.07.18.08.21.59; Mon, 18 Jul 2022 08:22:14 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=fBsqow0z; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235043AbiGRPEb (ORCPT + 99 others); Mon, 18 Jul 2022 11:04:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54512 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235041AbiGRPEa (ORCPT ); Mon, 18 Jul 2022 11:04:30 -0400 Received: from mail-yw1-x1132.google.com (mail-yw1-x1132.google.com [IPv6:2607:f8b0:4864:20::1132]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B33622DCB; Mon, 18 Jul 2022 08:04:28 -0700 (PDT) Received: by mail-yw1-x1132.google.com with SMTP id 00721157ae682-31e4c3b1977so7988077b3.6; Mon, 18 Jul 2022 08:04:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=rakaPpsPKgr9AgFMH3FHQ8xHpUEGCDbjnvgcfF2K4JQ=; b=fBsqow0znUWojma1Lsk0S+PJx+5XL0wfUd0UPlymTCrv3bfRh7NPXytp2ROtibNxN0 HytHpYDYPy9ulEnHjZY+Mwt1Wfs6JLbsQVOkzOMNeNkKcmeENegS8uns5et4DqIWuzej hS/KQpw8627eD434QYT3ECi+qsMWO1A7k906k4sbK3CzhKePLp6koh2kFto429GYnUfs fbeU5/QBYesXHv7DlcwL7wftxjEWqweJcVy/fDtO4qgfk1ZVpaUXuSzeuOVJl7QukpCe AE1jCFhY0/P/H0yF4Nm3FdJX2yb2vsTFIkOe+TcbnqSzjKhX9FElu29jpggBvWcrdEqu q3cA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=rakaPpsPKgr9AgFMH3FHQ8xHpUEGCDbjnvgcfF2K4JQ=; b=6dZKUwgL52rWpkShsD1BlEnEzwIId5ZXZ6TLkLX2eqKhSZgDnQWs4+Uys0+hrAhhmf jpejnErWhXL77VtrDY1JjgIua1n0aPJugo3oYycxslhLEvk7ErOeO7G14UjV5gYrWUhs lVNTjPyqys6cz17ZyDb4J57p/Q/GHwlvYKyN0WlFnS5v8PuTwXTbMuuFgnElVlAXJ5Yw LdoCAJablAFWP/0SwgcUGnYMVeSu2z9+gUV0nSmWT4IzJ2XhgTDi0SYR7pydNFNJyvUR giLuXmVKiLgvb++3BEOq1uu0e/spaSkbejz/Uzb5kGc3pWU+zNz6xr9R7Y6Bgpa4zMsm q7ww== X-Gm-Message-State: AJIora+MaWNm0grnSsTLpShSshHGCwen62G3C+DGi1wBq0ePocNZ+fqS CLoBUX+OIvqEgMkQWLqUvn8+SkjvBGVmRWPDOBYyy2UG5TU= X-Received: by 2002:a81:158a:0:b0:31c:a84a:d772 with SMTP id 132-20020a81158a000000b0031ca84ad772mr30375657ywv.233.1658156667940; Mon, 18 Jul 2022 08:04:27 -0700 (PDT) MIME-Version: 1.0 References: <87cze3docs.fsf@mpe.ellerman.id.au> <20220718134418.354114-1-mpe@ellerman.id.au> In-Reply-To: <20220718134418.354114-1-mpe@ellerman.id.au> From: Sudip Mukherjee Date: Mon, 18 Jul 2022 16:03:51 +0100 Message-ID: Subject: Re: [PATCH] powerpc/64s: Disable stack variable initialisation for prom_init To: Michael Ellerman Cc: linuxppc-dev , Kees Cook , linux-kernel , linux-hardening@vger.kernel.org, Linus Torvalds Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 18, 2022 at 2:44 PM Michael Ellerman wrote: > > With GCC 12 allmodconfig prom_init fails to build: > > Error: External symbol 'memset' referenced from prom_init.c > make[2]: *** [arch/powerpc/kernel/Makefile:204: arch/powerpc/kernel/prom_init_check] Error 1 > > > Reported-by: Sudip Mukherjee > Signed-off-by: Michael Ellerman And, this has fixed the build failure. Thanks Michael. -- Regards Sudip