From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) (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 9FC771B2EEC for ; Mon, 9 Sep 2024 13:26:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725888369; cv=none; b=KbuAk1CkBStTjp5A+KmivpFvwj79IwpYAxfBULIgqnwBaLnSdo5u9moE7leM3K/yX1BPj85ut90pbLdqz1O+P1qeJalXZ875LEvwkwlCTlNiyzc3MqXCrbdTse7w69ht36TWqn1M/+irymMmnaovq55DIK5WD83W8Z+5XYMQ7TY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725888369; c=relaxed/simple; bh=BOHthRl5/WqLkFhXr6md/AkQA1cMn8r5X/yoaMyuFtQ=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=CI9ZDJgMnAGeJdkAV/1Wn/DnxXP9O9FkOMzVkufF0g/+aqj1/VYLI9r0Wj0LfuixDnfHFmu7mv6xEKMwDnE5wNo0Tt+WHfyw8S+JhzhRMsixvLtXQrGS8DQHt/YoPbm8E43Qw5POUUyN/GuzOfnzId/4/soBPNvShXkr164uUqc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=fPlpyeEi; arc=none smtp.client-ip=198.175.65.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="fPlpyeEi" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1725888368; x=1757424368; h=date:from:to:cc:subject:message-id:mime-version; bh=BOHthRl5/WqLkFhXr6md/AkQA1cMn8r5X/yoaMyuFtQ=; b=fPlpyeEig5d9+X2eGgqovXE/e/OJFgj/LPQANO3mUFTV+e9DCkLym3Vz Xabs6qNh9qzAqCocWDEHicEMsrPAtXYRW66NQO8gtobH1T/zJZZKoAD+a TU3hEy1/RCqSqf8YTp9HqttaQcnhj7RbFA5nLoRUObGFdx4PhVIftg06x zlymFvRyD5+Sx4Vp3jMkSLvbtVb4uPCXOxtH4gTWKAOJyd8RNccZX07i0 NUmfmFFfmGP2cKDFdpR8FiwkSu1q9xu9NlmTC/GS/riY1Ui+h3MFkLSqv tNEd9FLXOmmef9wYEfqFWVZQ2xJoWzp+sVzu6SdCHCkFwL/ytJiP7LZ59 w==; X-CSE-ConnectionGUID: lGq4cB3aR8WJbdEgpdpIAQ== X-CSE-MsgGUID: Ipk9ng27RoWcUmY4PcY/VQ== X-IronPort-AV: E=McAfee;i="6700,10204,11190"; a="42060493" X-IronPort-AV: E=Sophos;i="6.10,214,1719903600"; d="scan'208";a="42060493" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Sep 2024 06:26:08 -0700 X-CSE-ConnectionGUID: +BCJ+aLgRViLDxSF3DBfAA== X-CSE-MsgGUID: 4OvWRs4CRYaxITOTSA9eWg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,214,1719903600"; d="scan'208";a="97376252" Received: from smile.fi.intel.com ([10.237.72.54]) by orviesa002.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Sep 2024 06:26:06 -0700 Received: from andy by smile.fi.intel.com with local (Exim 4.98) (envelope-from ) id 1sneP5-00000006nyp-3m4t; Mon, 09 Sep 2024 16:26:03 +0300 Date: Mon, 9 Sep 2024 16:26:03 +0300 From: Andy Shevchenko To: kees@kernel.org Cc: linux-hardening@vger.kernel.org Subject: -Wformat-trunctation with `make W=1` Message-ID: Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Recently I'm trying to compile my (almost) x86_64_defconfig based kernel with `make W=1` while having CONFIG_WERROR=y. With a handful of patches I was able to achieve that with clang-18, however GCC 14.2.0 issues a lot of additional warnings that are mostly related to -Wformat-truncation [1]. Any suggestions, plans, comments on how to address them? [1]: https://paste.debian.net/hidden/46106f2a/ -- With Best Regards, Andy Shevchenko