From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 88573279DC6 for ; Tue, 1 Jul 2025 15:30:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=65.109.113.108 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751383813; cv=none; b=fnWCtyxRuV5UcvSbcx+H2noR7PrkktvHEWqUhJnAUxQPaKjiqzJ7cYo42VvBDyxY9b4p2vCxSUzKqvV4hKtK4qQ8mWLgqH5BSKzZoLcF5mChpn9lLgqqNO9XheZAO/EeMqBMfZQ3sXqXgrfqQjpcx9IMEgkS2SQco3OO2Hq2TNw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751383813; c=relaxed/simple; bh=BE+7U6Fwy6+8VckRpmG8hpzu9KcLW2wkEdjhtOqUbFc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=c4p48wKjPRtC/KcAX1QHnEN3LHJuNi0NnQohJFK7mZtfLh/XK4dKZAzVU6094R+6RO1r23ny9KaYpHKz+LWEI4LcofulQWB9ChqCzj1mxGO4qeEgR3knT7fVN+AN8L3iGRNTUBxMrZh82ohV1ePGsX0zq5Ka2FcXlsHcKEARG7E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de; spf=pass smtp.mailfrom=alien8.de; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b=VX3avmnd; arc=none smtp.client-ip=65.109.113.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alien8.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b="VX3avmnd" Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id 4CF1340E0213; Tue, 1 Jul 2025 15:30:09 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=pass (4096-bit key) header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id yWKuWzBBavnP; Tue, 1 Jul 2025 15:30:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1751383806; bh=uszi8/buQOTLRi/2mujTfuC1qyXlMsMpvJpL7B+ioXs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=VX3avmndXilxV5K9nYT7/pdWDmce1wt1advUtYOpz+vIvC2mYmOxvCG1FMvHf+bDB od5Bopd+AJPHDIIaPeJ/sgY1Kh2S/bxoWYes4jpemE8uifzCxLaxhSGEu4smrlwTPq 8REPcesLvoiBBIY6+6jloWDlHwGoJ5KuNI8Sog3p5QsDyvYnMszJ1BsqC0p0SyAF2m xmyoSCw3Q695bcJTOa8R3m8qWjJKPQNIZjvzzsSQILVp4CSylHYM4iXE4yDaoWK7IF WBmas+S9mbonA6JeZ2hPXKSdHBPsBcYmU5iX/HCqE0TYHApGtmf4v/Y1MosZ0K9C8B QP0iC65EtMu7aZ6r2Yqh3+PNvj8DLUH64bXL4WD7GMhV50A8+sbj/lLTLMSSISoN28 CRpIPAAgX88rysSZPIFHHeuukOPe6JwoAqYLTxU7fH5iqWapQLnhDW43bY4wzq9z1A noqsUBi2+bZIxi7FHWB16guI5JrbOL73oz7JMtcxVlckr+Gvsi3V3NwpE8C/A7KIui FVNCP6YSWnNvjmGlZeEWKCSbZ6HgAhbQ3UgLIRUOhxvXUG7zuVPLBpRtCDil54HtNI 2GTt/XZBjdtokk96F+dzdNCVTsvYA4DttiPR2Itrw0MsOazEB80vbc1cxr1RGp7Wfg VX8ooSXsnusDdmeROSsFlV+w= Received: from zn.tnic (p57969c58.dip0.t-ipconnect.de [87.150.156.88]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 0D9C540E020E; Tue, 1 Jul 2025 15:29:58 +0000 (UTC) Date: Tue, 1 Jul 2025 17:29:53 +0200 From: Borislav Petkov To: Nathan Chancellor Cc: kernel test robot , Nikunj A Dadhania , llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, x86@kernel.org Subject: Re: [tip:x86/urgent 1/1] arch/x86/coco/sev/core.c:2170:30: warning: variable 'dummy' set but not used Message-ID: <20250701152953.GCaGP-8bWPmRWI10Ec@fat_crate.local> References: <202507010218.3O5Ge0Xt-lkp@intel.com> <20250630192726.GBaGLlHl84xIopx4Pt@fat_crate.local> <20250701150644.GA3563357@ax162> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20250701150644.GA3563357@ax162> On Tue, Jul 01, 2025 at 08:06:44AM -0700, Nathan Chancellor wrote: > Citation needed. This reproduces with Clang 15 (earliest supported on > x86 now), Clang 19, and GCC 15 for me. Were you missing W=1? Nope. $ git checkout -b test 4a35d2b5254af89595fd90dae9ee0c8f990a148d Switched to a new branch 'test' $ make CC=clang-19 HOSTCC=clang-19 W=1 arch/x86/coco/sev/core.o ... LINK /mnt/kernel/kernel/linux/tools/objtool/objtool CC arch/x86/coco/sev/core.o $ clang-19 --version Debian clang version 19.1.7 (1+b1) Target: x86_64-pc-linux-gnu Thread model: posix InstalledDir: /usr/lib/llvm-19/bin -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette