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 18E6231E823 for ; Thu, 5 Mar 2026 09:40:47 +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=1772703650; cv=none; b=bssy5OjuN9Z4Aes5EviAUzixJHsbl4Ea5r7rVQQWJSezBf9EApgEOdGvqi64yS7W9CMqMuuTkmyrFJst4AA2OZ/Fzzc89d6SXjM6pIJtmYXa6PAXGw+VcA83ckGi3DV8lrD0+VoQOmX7UMeayPef7f91TmMpVsKpsoXfDFJ/054= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772703650; c=relaxed/simple; bh=LvMtC5Es2zdP2uSfy78WiJ9eCMEa+XDyOii1X1gzxqg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=beIkek1GnYnMLvxIdIsrJBb06ZlexipMhm6RPfnBxNr17eovr0AQsFWCumdgx5N1zPKFfYKQHGGG1NX3kCA6kacsNNcnOIhVuD12FptI0F9c03Uh2j2VokgpWjMmLbos/n+2PiR0IdVCidkmOmA68gv1Me4WvV0BjpmdzEuu92c= 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=lWvd8qkQ; 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="lWvd8qkQ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772703648; x=1804239648; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=LvMtC5Es2zdP2uSfy78WiJ9eCMEa+XDyOii1X1gzxqg=; b=lWvd8qkQfvO2jhsxPo9fyHmnpB0zPVhaN295+jhOYpawvRnReaVRWqtb znHWKImioLbdU2tZhdx/DGmmnk4qj5Zyru8Jgdqi/Sr6YmuHJddNY+ivA mg1ilKmeusF5W71H42oV+L7+Bxn/1Pk9PbKZ2JyhTVklSwUI9MyZDDO+1 rsYRhT5JqhPrU1dtNffZoTrMqURHRNzsCmc1fuP++q8NlmazhBAKqf+BH KGbayD5dSUGYXTO4sWF1/oCRtNXAMxF4BOunnl1bIqY22bssFdFpVErNh FmWjWRQNGHjvZ7c5Ko/cv+E6oUh/c9RWtelUVsLVfxq6hjjlnKFoJotCh Q==; X-CSE-ConnectionGUID: mrDXTz8GSlu/DfEDxXIV4Q== X-CSE-MsgGUID: 1zchDUuKQzqEtU2z9a2xuA== X-IronPort-AV: E=McAfee;i="6800,10657,11719"; a="73655006" X-IronPort-AV: E=Sophos;i="6.23,102,1770624000"; d="scan'208";a="73655006" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Mar 2026 01:40:47 -0800 X-CSE-ConnectionGUID: Jk7zocwMTbSxx9Uwx4I9DA== X-CSE-MsgGUID: ywdnkGDjTh+TV1ylWGRkSQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,102,1770624000"; d="scan'208";a="249091282" Received: from lkp-server01.sh.intel.com (HELO cadc4577a874) ([10.239.97.150]) by orviesa002.jf.intel.com with ESMTP; 05 Mar 2026 01:40:44 -0800 Received: from kbuild by cadc4577a874 with local (Exim 4.98.2) (envelope-from ) id 1vy5CD-000000000QM-3cVS; Thu, 05 Mar 2026 09:40:41 +0000 Date: Thu, 5 Mar 2026 17:39:48 +0800 From: kernel test robot To: Thanos Makatos , "seanjc@google.com" Cc: oe-kbuild-all@lists.linux.dev, "pbonzini@redhat.com" , John Levon , "kvm@vger.kernel.org" , Thanos Makatos Subject: Re: [PATCH] KVM: optionally post write on ioeventfd write Message-ID: <202603051704.nmQyEAnO-lkp@intel.com> References: <20260302122826.2572-1-thanos.makatos@nutanix.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260302122826.2572-1-thanos.makatos@nutanix.com> Hi Thanos, kernel test robot noticed the following build errors: [auto build test ERROR on kvm/queue] [also build test ERROR on kvm/next linus/master v7.0-rc2 next-20260304] [cannot apply to kvm/linux-next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Thanos-Makatos/KVM-optionally-post-write-on-ioeventfd-write/20260302-204031 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue patch link: https://lore.kernel.org/r/20260302122826.2572-1-thanos.makatos%40nutanix.com patch subject: [PATCH] KVM: optionally post write on ioeventfd write config: i386-randconfig-141-20260305 (https://download.01.org/0day-ci/archive/20260305/202603051704.nmQyEAnO-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) smatch: v0.5.0-9004-gb810ac53 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260305/202603051704.nmQyEAnO-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/202603051704.nmQyEAnO-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from arch/x86/events/intel/core.c:17: In file included from include/linux/kvm_host.h:40: >> include/uapi/linux/kvm.h:669:16: error: static assertion failed due to requirement 'sizeof(struct kvm_ioeventfd) == 1 << 6': bad size 669 | _Static_assert(sizeof(struct kvm_ioeventfd) == 1 << 6, "bad size"); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/uapi/linux/kvm.h:669:45: note: expression evaluates to '56 == 64' 669 | _Static_assert(sizeof(struct kvm_ioeventfd) == 1 << 6, "bad size"); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~ 1 error generated. vim +669 include/uapi/linux/kvm.h 659 660 struct kvm_ioeventfd { 661 __u64 datamatch; 662 __u64 addr; /* legal pio/mmio address */ 663 __u32 len; /* 1, 2, 4, or 8 bytes; or 0 to ignore length */ 664 __s32 fd; 665 __u32 flags; 666 void __user *post_addr; /* address to write to if POST_WRITE is set */ 667 __u8 pad[24]; 668 }; > 669 _Static_assert(sizeof(struct kvm_ioeventfd) == 1 << 6, "bad size"); 670 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki