From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) (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 900DB3E7161 for ; Fri, 6 Mar 2026 15:42:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772811724; cv=none; b=bgt8PCcP5XNhMNV+Y80Nlh62C6vrwuTc+OaWHbzvlDhFO7wljH2xBFD3lxp5t/kyLKlzJUnC0kDOBWM4YJd137pK4T372OzVxXgOfskYtBRS15VL67FYqJZug1BmDnPEt8OW7f3dfXPYvOWH3Ry6m0+1KyG2F0j8CykRxIAj3bI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772811724; c=relaxed/simple; bh=umyrFu3WOwFJbNni3/EL5Fr1sY4WnckVP+5RxfSer/Y=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=cR55c0NfMCD/E3C7ncsYQllAvrKZ8uKW0Fd4I9FVg6cARxgW/1zmnCOwvyga4RBTnsglQJ9bZJy+a3jT3a11WFOhQ2v4jwgPsoVjpgRgnNVnHnqVIWRXZv8I89qtTIwWcS4jCCLPxK+i8IQbCYCCbma/4m608JNPpuOkiYgobfA= 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=BPdhnYsP; arc=none smtp.client-ip=192.198.163.18 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="BPdhnYsP" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772811721; x=1804347721; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=umyrFu3WOwFJbNni3/EL5Fr1sY4WnckVP+5RxfSer/Y=; b=BPdhnYsPJFlZiLn+4oOaWFZSoQ7DGnDvx/N7dyl/AKIkfQ1qMTdbGGy/ vSIiFj+wQUOy7Kjb1P2hRjcNVhCiyx41eqWBVLfzEoDrF91z8/YmTCtU2 6LUcREoWVe39Im5Yfj2YEzBxSP6HFdLpimkhK9NGW4hh3a0VqJaEK8Ne2 sybVG8owP07jx/oeB1iZz4oqIGSzVm1BQV5FYCR6Tem2D25/id9EN0Jfc hJ86klU3rRYuRGzP/+XY5BspNPMXr5qIyRRNmXf8DoIpIG0Kzp191v2Sh Ibtg0fvlFgHDhpTnGMMsUNjj04WSqoYlFT1+EmUsX5tDuTnLkjCynEp0a w==; X-CSE-ConnectionGUID: e6kYriapSgGXFfurTYTNLg== X-CSE-MsgGUID: I9Qz+mqUT1WcAiHuS6vN/w== X-IronPort-AV: E=McAfee;i="6800,10657,11721"; a="73116635" X-IronPort-AV: E=Sophos;i="6.23,105,1770624000"; d="scan'208";a="73116635" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2026 07:42:00 -0800 X-CSE-ConnectionGUID: 1FFWmMl6SCiiy4dZU2gJlQ== X-CSE-MsgGUID: TyeDGX56RHWbLqcVF1eSsQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,105,1770624000"; d="scan'208";a="224020148" Received: from lkp-server01.sh.intel.com (HELO 058beb05654c) ([10.239.97.150]) by orviesa005.jf.intel.com with ESMTP; 06 Mar 2026 07:41:53 -0800 Received: from kbuild by 058beb05654c with local (Exim 4.98.2) (envelope-from ) id 1vyXJF-00000000105-0p0h; Fri, 06 Mar 2026 15:41:49 +0000 Date: Fri, 6 Mar 2026 23:41:14 +0800 From: kernel test robot To: Lance Yang , akpm@linux-foundation.org Cc: 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: <202603062315.vLgD8smL-lkp@intel.com> References: <20260304021046.18550-3-lance.yang@linux.dev> Precedence: bulk X-Mailing-List: oe-kbuild-all@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: i386-allnoconfig (https://download.01.org/0day-ci/archive/20260306/202603062315.vLgD8smL-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260306/202603062315.vLgD8smL-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/202603062315.vLgD8smL-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/x86/mm/tlb.c:1841:13: warning: no previous prototype for 'native_pv_tlb_init' [-Wmissing-prototypes] 1841 | void __init native_pv_tlb_init(void) | ^~~~~~~~~~~~~~~~~~ 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