From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) (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 0DF1E34BA5B; Fri, 6 Mar 2026 14:36:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772807817; cv=none; b=t6NAln0TErWm8sxKzWRcSSrZ43C+QlkRfpBu1BbOrQO5A1e8srSmj9xrD/pwFBCTJxsKx4dszBWRQjq/9bkMrx/wzZQItzBziLjZ1SVlAU5Es7IFp5V/iKsUN2ZMD3XxmvTPGFoTeitPtv+irwHnWsR85/fkY7xIO7vlQOf4s0k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772807817; c=relaxed/simple; bh=QqkFcFahsd0op5XjYc6lYSwgGgomR2TfWx7WyjH4taw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=YNhoLPDAqkQeKq8NwkkZTbfORsYGdR6JVNo/M37eXjwjpRN4yhA2dRkGjQPPXbQkljt25e2TKE4ctDWrzPKGMrWSYD2pOkMytJcuS/9P5Cii19WqVzHMPwXA+7yLMzM06IeIzD73ilRW1kHTJy9EPpy/5/bK3PJ0USfrJS2jHSI= 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=atIYUquD; arc=none smtp.client-ip=198.175.65.11 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="atIYUquD" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772807817; x=1804343817; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=QqkFcFahsd0op5XjYc6lYSwgGgomR2TfWx7WyjH4taw=; b=atIYUquDLiika2bYHk2ecinUP94Ezw61zLZS08Z2RlZ1lYWKVc9hPOPU bxB5Tac0zNNS9i1jp0UZ2p48vrVE66f8/BzXBtIiKqTgFdmuQhloDxEpa NiCeFgk/l1FxL4VILJ9I/AWYuk+8dM9faRGmS/u679HzaUQP3PAUjPvAD hwL3sM7P19xrN+V7Zbo/N+BLc+S002p8DrtmiwJxr1GllykYNHl1Lf4Vx VegCKfGKYz4pkjuiXBlCTbQ75gXKw2J+o9Mxo08HcXrqS4uZVA1/81Lp5 x4bUToMrGXp/hIzPUAc1TcX2extue8iAYdjIPsBiKpl5j8QlkvM7GepmB Q==; X-CSE-ConnectionGUID: Dd5ZB45RTm2Ybs/NXKjd8A== X-CSE-MsgGUID: E6L6Z62kRsWS1rOBZiZsBg== X-IronPort-AV: E=McAfee;i="6800,10657,11721"; a="84241910" X-IronPort-AV: E=Sophos;i="6.23,105,1770624000"; d="scan'208";a="84241910" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2026 06:36:56 -0800 X-CSE-ConnectionGUID: 5eLOZ5sMRgyJU2Um/15HDA== X-CSE-MsgGUID: eEHtQg9bQY+UOB1keMyEXQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,105,1770624000"; d="scan'208";a="221831643" Received: from lkp-server01.sh.intel.com (HELO 058beb05654c) ([10.239.97.150]) by fmviesa004.fm.intel.com with ESMTP; 06 Mar 2026 06:36:48 -0800 Received: from kbuild by 058beb05654c with local (Exim 4.98.2) (envelope-from ) id 1vyWIG-000000000wX-3MaE; Fri, 06 Mar 2026 14:36:44 +0000 Date: Fri, 6 Mar 2026 22:35:58 +0800 From: kernel test robot To: Lance Yang , akpm@linux-foundation.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, david@kernel.org, dave.hansen@intel.com, dave.hansen@linux.intel.com, ypodemsk@redhat.com, hughd@google.com, will@kernel.org, aneesh.kumar@kernel.org, npiggin@gmail.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com, arnd@arndb.de, lorenzo.stoakes@oracle.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, Liam.Howlett@oracle.com, npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com, baohua@kernel.org, shy828301@gmail.com, riel@surriel.com, jannh@google.com, jgross@suse.com, seanjc@google.com, pbonzini@redhat.com Subject: Re: [PATCH v6 2/2] x86/tlb: skip redundant sync IPIs for native TLB flush Message-ID: <202603062249.9Wwr2mux-lkp@intel.com> References: <20260304021046.18550-3-lance.yang@linux.dev> 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: <20260304021046.18550-3-lance.yang@linux.dev> Hi Lance, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] [also build test WARNING on next-20260305] [cannot apply to tip/x86/core arnd-asm-generic/master peterz-queue/sched/core tip/x86/mm linus/master v7.0-rc2] [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/Lance-Yang/mm-mmu_gather-prepare-to-skip-redundant-sync-IPIs/20260304-101422 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20260304021046.18550-3-lance.yang%40linux.dev patch subject: [PATCH v6 2/2] x86/tlb: skip redundant sync IPIs for native TLB flush config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20260306/202603062249.9Wwr2mux-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/20260306/202603062249.9Wwr2mux-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/202603062249.9Wwr2mux-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/x86/mm/tlb.c:1841:13: warning: no previous prototype for function 'native_pv_tlb_init' [-Wmissing-prototypes] 1841 | void __init native_pv_tlb_init(void) | ^ arch/x86/mm/tlb.c:1841:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1841 | void __init native_pv_tlb_init(void) | ^ | static 1 warning generated. vim +/native_pv_tlb_init +1841 arch/x86/mm/tlb.c 1839 1840 #ifndef CONFIG_PARAVIRT > 1841 void __init native_pv_tlb_init(void) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki