From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (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 9862033D4F4; Tue, 10 Feb 2026 10:18:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770718719; cv=none; b=LfV+USvShJIout1gkJRTyIhigr7Q+7Ib1WViGT4l9oD+SodSL2bSMLSwChhjhVh7KPT7+8RR/oCFwtM0w0PUyYuoEKZ7UTD6ptFDzW1/gtOay2EMEc54IlqZfLRsd+M61RSFtpIbDRFHckth8QPRD86jNcv3D6Bb1JYOA1Rx7X0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770718719; c=relaxed/simple; bh=VByuqXrEQmBsKkYivqT/TtUcuoLQ4j1KAE0Ku65oy+A=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=CvV8NBWYdvSyU5xioKJdVWXY/KcW+m7wCzwS0c7gYDJazWD7WEc6Sio7R+4Kn9eN9TGzOXFe8oYAIHBXtQb/AxnBZg9bZOccfWH39OyRtR1AefSK3tX1balDkH89+UIYjKmVkS6L2f7KtvdeBc9MCQWrQXcmsSAkpuf0rH2Pyuk= 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=hAgrsoGx; arc=none smtp.client-ip=192.198.163.19 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="hAgrsoGx" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1770718718; x=1802254718; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=VByuqXrEQmBsKkYivqT/TtUcuoLQ4j1KAE0Ku65oy+A=; b=hAgrsoGxzUBmuh5rgvjjfELbJaQGpFTEPlJbFVEeJP9QjQ0YJi+eite+ UrqG9X6AtQwecxRJLlnPKlYCEblou1WzXj2eRT6XxliNCkSsUrdkgUl4H 30tCyGrmVy8svLZkDhMEC6Yp7P4fOydIrGR/BVK5XdYS//W9qMugXooae /iQFx9vwP9SeGhgppck3zOGqRaibTcVFccHn3qTk+jLgpypOjb46oe+Z/ xlOxpisQOzsPf53e2gKwZviOiYMdn+o92CoB4vXlh3kDRvvZi5GNkEwQG x6qY+geXCThaGDktsSWyX2qesh9c4mBVJSDmcRyyBGEKWKqkp+qiyLTGR w==; X-CSE-ConnectionGUID: 9uKkCVYUQVuM9GjLtFdxpQ== X-CSE-MsgGUID: uzGZkBIAQ1GyTZNcuSKnUw== X-IronPort-AV: E=McAfee;i="6800,10657,11696"; a="70858098" X-IronPort-AV: E=Sophos;i="6.21,283,1763452800"; d="scan'208";a="70858098" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Feb 2026 02:18:37 -0800 X-CSE-ConnectionGUID: e0YGTRz4QjCzgy/V6e91UQ== X-CSE-MsgGUID: +Uf5Gb+vSuGknNHyAMwl/w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,283,1763452800"; d="scan'208";a="211916395" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by orviesa008.jf.intel.com with ESMTP; 10 Feb 2026 02:18:36 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vpkpF-00000000ouI-1IYi; Tue, 10 Feb 2026 10:18:33 +0000 Date: Tue, 10 Feb 2026 18:17:43 +0800 From: kernel test robot To: Liviu Dudau Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: Re: [RFC PATCH] iommu/io-pgtable: Add support for Arm Mali v10+ GPUs page table format Message-ID: <202602101827.8rqDJVFA-lkp@intel.com> References: <20260209112542.194140-1-liviu.dudau@arm.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260209112542.194140-1-liviu.dudau@arm.com> Hi Liviu, [This is a private test report for your RFC patch.] kernel test robot noticed the following build warnings: [auto build test WARNING on arm-perf/for-next/perf] [also build test WARNING on linus/master v6.19 next-20260209] [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/Liviu-Dudau/iommu-io-pgtable-Add-support-for-Arm-Mali-v10-GPUs-page-table-format/20260209-193039 base: https://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git for-next/perf patch link: https://lore.kernel.org/r/20260209112542.194140-1-liviu.dudau%40arm.com patch subject: [RFC PATCH] iommu/io-pgtable: Add support for Arm Mali v10+ GPUs page table format config: sparc64-allmodconfig (https://download.01.org/0day-ci/archive/20260210/202602101827.8rqDJVFA-lkp@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9b8addffa70cee5b2acc5454712d9cf78ce45710) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260210/202602101827.8rqDJVFA-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/202602101827.8rqDJVFA-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/iommu/io-pgtable-arm.c:870:38: warning: overlapping comparisons always evaluate to true [-Wtautological-overlap-compare] 870 | if (data->iop.fmt != ARM_64_LPAE_S1 || | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~ 871 | data->iop.fmt != ARM_MALI_CSF) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. vim +870 drivers/iommu/io-pgtable-arm.c 847 848 static int arm_lpae_read_and_clear_dirty(struct io_pgtable_ops *ops, 849 unsigned long iova, size_t size, 850 unsigned long flags, 851 struct iommu_dirty_bitmap *dirty) 852 { 853 struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops); 854 struct io_pgtable_cfg *cfg = &data->iop.cfg; 855 struct io_pgtable_walk_data walk_data = { 856 .iop = &data->iop, 857 .data = dirty, 858 .visit = visit_dirty, 859 .flags = flags, 860 .addr = iova, 861 .end = iova + size, 862 }; 863 arm_lpae_iopte *ptep = data->pgd; 864 int lvl = data->start_level; 865 866 if (WARN_ON(!size)) 867 return -EINVAL; 868 if (WARN_ON((iova + size - 1) & ~(BIT(cfg->ias) - 1))) 869 return -EINVAL; > 870 if (data->iop.fmt != ARM_64_LPAE_S1 || 871 data->iop.fmt != ARM_MALI_CSF) 872 return -EINVAL; 873 874 return __arm_lpae_iopte_walk(data, &walk_data, ptep, lvl); 875 } 876 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki