From patchwork Sun Sep 12 16:01:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guenter Roeck X-Patchwork-Id: 510338 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 0BC56C43217 for ; Sun, 12 Sep 2021 16:02:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E726B60F4A for ; Sun, 12 Sep 2021 16:02:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236154AbhILQDb (ORCPT ); Sun, 12 Sep 2021 12:03:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56072 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236007AbhILQDV (ORCPT ); Sun, 12 Sep 2021 12:03:21 -0400 Received: from mail-ot1-x331.google.com (mail-ot1-x331.google.com [IPv6:2607:f8b0:4864:20::331]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 67375C061767; Sun, 12 Sep 2021 09:02:01 -0700 (PDT) Received: by mail-ot1-x331.google.com with SMTP id k12-20020a056830150c00b0051abe7f680bso9863720otp.1; Sun, 12 Sep 2021 09:02:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=1/KmRngdTFmzo/UZtKn8rZGj6ovhn9EKtKsKEFMmxn8=; b=amNjEwmKkK+EAJ9qU3oqx/lS59tXH0W5/YF8YlPF3GV2qc12vsrXWzh7XtqybrGlAs o6pIua5w6eKY4OoNzk01slxP4ZKoUpwEix20mxfLDymqeV6qI2QXBDtCpG/j/Axk/5Hn SL/Y6srbyHVRRcSQMUrQJX1adW0ddv0klYEXAcmoYLpDRJ0YEwI7heQhBx5g0pmX2EI9 a81hkcyl2X4pwumIopWL6c0I0MnYiRhIcqNy+fzEBpMbEWKPQmI90TT9YmHFZavmyr9s dNxNgJxkpemPqlCLDg+7wlA8W6T1DHqssu6DB6v754xvJKFfmGv/rH/iU1X1Jihdtho4 kwLw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=1/KmRngdTFmzo/UZtKn8rZGj6ovhn9EKtKsKEFMmxn8=; b=D6q+IqESzyMygrR/qu31acOgBFOqoLxI6r3hK9kfhaHSPKgdw2TU7TN4rrahLwbjXc d4XpX940c/3LZfunW4RfDut8Ezewnn88FpkD1+suAKYfLS7nBparuyQMpfaMI3horVVS pPGgIc0iI9yzleIzKCgRHAuwv1b9G5W5CRXK4mI3S//ZSmDGHzPF0xcuxNUIvjy5DKWb uY7llCXUWxci4GtmABIurI6ZBO3B30+nC+gJBN4GW/kuRx3h10aYesG9XvdFYkREolR0 dkAnT54A+iIIPpsrpAvpxjpmXcA5UDa9qeyk62h1JNdtX5ied4tlOgmWJCvII9fEg4Xh st3g== X-Gm-Message-State: AOAM53020z7QC+bK5j/SgKOIfmYv7WWby4HOOaGQ7H9E3c0o+H+slTYs QrUgjD1sThUkEc/RCFp9Fsg= X-Google-Smtp-Source: ABdhPJyHZowChSylgmGOCRZlO/Fx09vA0coF7aqUN5xcR70/VpKTCHElmrsr5xSOKIOtgEY5NKK4Ng== X-Received: by 2002:a9d:7a4e:: with SMTP id z14mr6569712otm.366.1631462520789; Sun, 12 Sep 2021 09:02:00 -0700 (PDT) Received: from server.roeck-us.net ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id s24sm1200792otp.37.2021.09.12.09.01.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 12 Sep 2021 09:02:00 -0700 (PDT) Sender: Guenter Roeck From: Guenter Roeck To: Linus Torvalds Cc: Richard Henderson , Ivan Kokshaysky , Matt Turner , "James E . J . Bottomley" , Helge Deller , "David S . Miller" , Jakub Kicinski , linux-alpha@vger.kernel.org, Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org, netdev@vger.kernel.org, linux-sparse@vger.kernel.org, Guenter Roeck Subject: [PATCH 3/4] parisc: Use absolute_pointer for memcmp on fixed memory location Date: Sun, 12 Sep 2021 09:01:48 -0700 Message-Id: <20210912160149.2227137-4-linux@roeck-us.net> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210912160149.2227137-1-linux@roeck-us.net> References: <20210912160149.2227137-1-linux@roeck-us.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org parisc:allmodconfig fails to build with the following error when using gcc 11.x. arch/parisc/kernel/setup.c: In function 'start_parisc': arch/parisc/kernel/setup.c:389:28: error: '__builtin_memcmp_eq' specified bound 8 exceeds source size 0 Avoid the problem by using absolute_pointer() when providing a memory address to memcmp(). Signed-off-by: Guenter Roeck --- arch/parisc/kernel/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c index cceb09855e03..4e13345b6581 100644 --- a/arch/parisc/kernel/setup.c +++ b/arch/parisc/kernel/setup.c @@ -384,7 +384,7 @@ void __init start_parisc(void) struct pdc_coproc_cfg coproc_cfg; /* check QEMU/SeaBIOS marker in PAGE0 */ - running_on_qemu = (memcmp(&PAGE0->pad0, "SeaBIOS", 8) == 0); + running_on_qemu = (memcmp(absolute_pointer(&PAGE0->pad0), "SeaBIOS", 8) == 0); cpunum = smp_processor_id();