From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 B47752EDD62 for ; Fri, 9 Jan 2026 23:51:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768002663; cv=none; b=OXXvUQSV0YCPs5hY/1SRcabyO6DXlbbGgK1e9W1WLY43DahmEMvaZJcNw7mTLtTx1hX9d855I70uxxnC8JhaTuLK3uy98hvmiZSbS9nW9/nmWm+QSw5M2WxUpwpfAQ+6MK/FkCJLq3uM7tPnnZVtt+6XJDHeR1KL+CR2RwaY1/U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768002663; c=relaxed/simple; bh=wg1a971ZV81p1X2cSVvs2XCqIuTQ6nIT+RVZmomxAkw=; h=Date:From:To:Cc:Subject:Message-ID; b=BPeS9Q05bplnswdIqqP7N4JlF9HW8zHOxYSERHpcWlzKSFzzmvM1fgmrUIT0b9Zz0Bdz+COejYaLAVcnohddOCbj7cCjOf9hFWRzt8quTs1kugbNV27bn1pAcDlZwYQHPK/hxLEFPvFlYaD+joyzT9XsHg+zrzj9ZYNn686axOg= 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=ZwdH3gfC; arc=none smtp.client-ip=198.175.65.21 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="ZwdH3gfC" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1768002661; x=1799538661; h=date:from:to:cc:subject:message-id; bh=wg1a971ZV81p1X2cSVvs2XCqIuTQ6nIT+RVZmomxAkw=; b=ZwdH3gfC7ucC3FgeiNtbQ7qzt6ReHkTEk4bg1pmP3vgtoEgGAY1YuKta HeofySlgxmW2YLUSGIv7OBiW/XGRH8mdOw1UeK2EcQbP/xogiXSE7Pzqk RH/rH05A3b5WD21qpFDnYnl9OEPiCCtBtQKhpTNNfa6COcmoX+B+MS9NX eGWav1WslrKWeHagkYeXWcb2DAN294tH0x1pmRwTJruHgaL8IJru1RlLH rUwfPVb0nU+6c5WxyHmcSnG9+7FsCywPNxaI/s1h+I0h0JlS/vKgxsV6M yKuQzH6IE3ZGP96vqdOuyq1bKvJdeUHi47hu0cKdCruu2iJxX+fGv9m6w A==; X-CSE-ConnectionGUID: t3xnpGRCRpGPGyQIdE/OdA== X-CSE-MsgGUID: fvTIMOGuRk6nVcyr/1cIsw== X-IronPort-AV: E=McAfee;i="6800,10657,11666"; a="69314554" X-IronPort-AV: E=Sophos;i="6.21,215,1763452800"; d="scan'208";a="69314554" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jan 2026 15:50:59 -0800 X-CSE-ConnectionGUID: kE21eWVtTiaGhuNxGCqsEA== X-CSE-MsgGUID: WAlGkRV3S5qRD/FLre9rxg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,215,1763452800"; d="scan'208";a="226938797" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by fmviesa002.fm.intel.com with ESMTP; 09 Jan 2026 15:50:57 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1veMFr-000000007r2-2iSG; Fri, 09 Jan 2026 23:50:55 +0000 Date: Sat, 10 Jan 2026 07:50:44 +0800 From: kernel test robot To: Arnd Bergmann Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Hans de Goede Subject: include/uapi/linux/vbox_vmmdev_types.h:254:6: warning: field u within 'struct vmmdev_hgcm_function_parameter64::(unnamed at include/uapi/linux/vbox_vmmdev_types.h:249:3)' is less aligned than 'union (unnamed union at include/uapi/linux/vbox_vmmdev_types.h... Message-ID: <202601100754.L6nl4dGs-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Hi Arnd, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 372800cb95a35a7c40a07e2e0f7de4ce6786d230 commit: c99e1e1d0850ff157f1bc16871acd2dff5a9bcc3 vbox: add HAS_IOPORT dependency date: 11 months ago config: arm-randconfig-r052-20260110 (https://download.01.org/0day-ci/archive/20260110/202601100754.L6nl4dGs-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260110/202601100754.L6nl4dGs-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202601100754.L6nl4dGs-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/virt/vboxguest/vboxguest_linux.c:15: In file included from include/linux/vbox_utils.h:8: include/uapi/linux/vbox_vmmdev_types.h:239:4: warning: field u within 'struct vmmdev_hgcm_function_parameter32' is less aligned than 'union (unnamed union at include/uapi/linux/vbox_vmmdev_types.h:223:2)' and is usually due to 'struct vmmdev_hgcm_function_parameter32' being packed, which can lead to unaligned accesses [-Wunaligned-access] 239 | } u; | ^ >> include/uapi/linux/vbox_vmmdev_types.h:254:6: warning: field u within 'struct vmmdev_hgcm_function_parameter64::(unnamed at include/uapi/linux/vbox_vmmdev_types.h:249:3)' is less aligned than 'union (unnamed union at include/uapi/linux/vbox_vmmdev_types.h:251:4)' and is usually due to 'struct vmmdev_hgcm_function_parameter64::(unnamed at include/uapi/linux/vbox_vmmdev_types.h:249:3)' being packed, which can lead to unaligned accesses [-Wunaligned-access] 254 | } u; | ^ 2 warnings generated. vim +254 include/uapi/linux/vbox_vmmdev_types.h f6ddd094f57934 Hans de Goede 2017-11-30 242 f6ddd094f57934 Hans de Goede 2017-11-30 243 /** HGCM function parameter, 64-bit client. */ f6ddd094f57934 Hans de Goede 2017-11-30 244 struct vmmdev_hgcm_function_parameter64 { f6ddd094f57934 Hans de Goede 2017-11-30 245 enum vmmdev_hgcm_function_parameter_type type; f6ddd094f57934 Hans de Goede 2017-11-30 246 union { f6ddd094f57934 Hans de Goede 2017-11-30 247 __u32 value32; f6ddd094f57934 Hans de Goede 2017-11-30 248 __u64 value64; f6ddd094f57934 Hans de Goede 2017-11-30 249 struct { f6ddd094f57934 Hans de Goede 2017-11-30 250 __u32 size; f6ddd094f57934 Hans de Goede 2017-11-30 251 union { f6ddd094f57934 Hans de Goede 2017-11-30 252 __u64 phys_addr; f6ddd094f57934 Hans de Goede 2017-11-30 253 __u64 linear_addr; f6ddd094f57934 Hans de Goede 2017-11-30 @254 } u; f6ddd094f57934 Hans de Goede 2017-11-30 255 } __packed pointer; f6ddd094f57934 Hans de Goede 2017-11-30 256 struct { f6ddd094f57934 Hans de Goede 2017-11-30 257 /** Size of the buffer described by the page list. */ f6ddd094f57934 Hans de Goede 2017-11-30 258 __u32 size; f6ddd094f57934 Hans de Goede 2017-11-30 259 /** Relative to the request header. */ f6ddd094f57934 Hans de Goede 2017-11-30 260 __u32 offset; f6ddd094f57934 Hans de Goede 2017-11-30 261 } page_list; f6ddd094f57934 Hans de Goede 2017-11-30 262 } __packed u; f6ddd094f57934 Hans de Goede 2017-11-30 263 } __packed; f6ddd094f57934 Hans de Goede 2017-11-30 264 VMMDEV_ASSERT_SIZE(vmmdev_hgcm_function_parameter64, 4 + 12); f6ddd094f57934 Hans de Goede 2017-11-30 265 :::::: The code at line 254 was first introduced by commit :::::: f6ddd094f5793447d594aa9f42032a7aba12b4d2 virt: Add vboxguest driver for Virtual Box Guest integration UAPI :::::: TO: Hans de Goede :::::: CC: Greg Kroah-Hartman -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki