From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (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 B7F6E2EB10 for ; Thu, 15 Jan 2026 12:45:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768481106; cv=none; b=I0W6rUHieDXVHmK4uRHwQs/OhRWtQWAnKFxfVvAsZeZVK7abEdQH0W76B76FUlkRFx2cThmWEJpCT8lEH66WLqM/Vo4IFTwhamsp9e/uuOR8KQcWu+grZ19V1d3jUdcN5ytXv5fgLL5PefklWcyUW9u60zg4iv4/mEQFfLHMjlE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768481106; c=relaxed/simple; bh=NCsEQshptRvwWgmGrbshuhWnaCe9OeY7RtWIK7p1BYs=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=QG0pYqK4VvYI2V83Yz7S43aZSPA7ImmUB2FiEkHsGswkFGQKdkiMYaByne1GUNIQ5BowejsihZgBn2r2TQ0nnfmG2zPoE5mBKjhdtYxLzP1grjdvgQvzk8nKgQwqOx6m1Fyo5eJ35GwnsVwnSQd9qAJTtTfg3QO4eaIpJoKi1uU= 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=IGkHynxN; arc=none smtp.client-ip=192.198.163.17 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="IGkHynxN" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1768481105; x=1800017105; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=NCsEQshptRvwWgmGrbshuhWnaCe9OeY7RtWIK7p1BYs=; b=IGkHynxN2rTy++1xUqfANML+tkH04M0toqdzO6e/b/yhDQyJNznasrJo MlH11DKuIMg3bh+5Ubado3n6Qx+r9RDlxCRXtLOGzQISt1g0BHeUqhzxF OOMYq4zc0QK1nk7oRZRuaE95UastIcOP9dG/CGKX6aGMpY8YiCrF34zKu PKyR9iCnx4U4a/wql2mqs7C1g4DcBNEV+o9XUz2cAtH97HClDtJ4gAZUS 3j6o3JZX9VihRbymmdf3d8Bb6iMyZZaEq/DIj3Un6oLiBRLnjsk2BEGIo cnyTpMGXJONuQih9arFCFSv+/e/serElppjQW8/wAv7MiNQGbTxbWfhsj g==; X-CSE-ConnectionGUID: Tcku1y95TpKvSZ1Dfp0SvA== X-CSE-MsgGUID: fw2gLnEiQ16vnD6fQf0BrQ== X-IronPort-AV: E=McAfee;i="6800,10657,11671"; a="69692841" X-IronPort-AV: E=Sophos;i="6.21,228,1763452800"; d="scan'208";a="69692841" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Jan 2026 04:45:04 -0800 X-CSE-ConnectionGUID: wm1S6lJUToSnS3z3uVX/fw== X-CSE-MsgGUID: KvCstCq9ToO2JoO2vMNEoQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,228,1763452800"; d="scan'208";a="209806944" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by fmviesa004.fm.intel.com with ESMTP; 15 Jan 2026 04:45:03 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vgMij-00000000Hxo-01Z7; Thu, 15 Jan 2026 12:45:01 +0000 Date: Thu, 15 Jan 2026 20:44:38 +0800 From: kernel test robot To: Qi Zheng Cc: oe-kbuild-all@lists.linux.dev Subject: Re: [PATCH v3 24/30] mm: memcontrol: prepare for reparenting LRU pages for lruvec lock Message-ID: <202601152015.1a3y2IHZ-lkp@intel.com> References: <0252f9acc29d4b1e9b8252dc003aff065c8ac1f6.1768389889.git.zhengqi.arch@bytedance.com> 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: <0252f9acc29d4b1e9b8252dc003aff065c8ac1f6.1768389889.git.zhengqi.arch@bytedance.com> Hi Qi, kernel test robot noticed the following build errors: [auto build test ERROR on next-20260114] [cannot apply to akpm-mm/mm-everything brauner-vfs/vfs.all trace/for-next linus/master dennis-percpu/for-next v6.19-rc5 v6.19-rc4 v6.19-rc3 v6.19-rc5] [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/Qi-Zheng/mm-memcontrol-remove-dead-code-of-checking-parent-memory-cgroup/20260114-193921 base: next-20260114 patch link: https://lore.kernel.org/r/0252f9acc29d4b1e9b8252dc003aff065c8ac1f6.1768389889.git.zhengqi.arch%40bytedance.com patch subject: [PATCH v3 24/30] mm: memcontrol: prepare for reparenting LRU pages for lruvec lock config: mips-randconfig-r071-20260115 (https://download.01.org/0day-ci/archive/20260115/202601152015.1a3y2IHZ-lkp@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9b8addffa70cee5b2acc5454712d9cf78ce45710) smatch version: v0.5.0-8985-g2614ff1a reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260115/202601152015.1a3y2IHZ-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/202601152015.1a3y2IHZ-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from kernel/sched/core.c:16: In file included from include/linux/syscalls_api.h:1: In file included from include/linux/syscalls.h:96: In file included from include/trace/syscall.h:7: In file included from include/linux/trace_events.h:10: In file included from include/linux/perf_event.h:53: In file included from include/linux/security.h:35: In file included from include/linux/bpf.h:32: >> include/linux/memcontrol.h:1507:13: error: use of undeclared identifier 'rcu' 1507 | __acquires(rcu) | ^~~ include/linux/memcontrol.h:1515:13: error: use of undeclared identifier 'rcu' 1515 | __releases(rcu) | ^~~ include/linux/memcontrol.h:1523:13: error: use of undeclared identifier 'rcu' 1523 | __releases(rcu) | ^~~ include/linux/memcontrol.h:1532:13: error: use of undeclared identifier 'rcu' 1532 | __releases(rcu) | ^~~ In file included from kernel/sched/core.c:83: In file included from arch/mips/include/asm/tlb.h:24: In file included from include/asm-generic/tlb.h:15: >> include/linux/swap.h:333:14: error: use of undeclared identifier 'rcu' 333 | __releases(rcu) | ^~~ kernel/sched/core.c:7764:12: warning: array index -1 is before the beginning of the array [-Warray-bounds] 7764 | preempt_modes[preempt_dynamic_mode] : "undef", | ^ ~~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:7739:1: note: array 'preempt_modes' declared here 7739 | const char *preempt_modes[] = { | ^ 1 warning and 5 errors generated. -- In file included from kernel/sched/fair.c:57: In file included from kernel/sched/sched.h:47: >> include/linux/memcontrol.h:1507:13: error: use of undeclared identifier 'rcu' 1507 | __acquires(rcu) | ^~~ include/linux/memcontrol.h:1515:13: error: use of undeclared identifier 'rcu' 1515 | __releases(rcu) | ^~~ include/linux/memcontrol.h:1523:13: error: use of undeclared identifier 'rcu' 1523 | __releases(rcu) | ^~~ include/linux/memcontrol.h:1532:13: error: use of undeclared identifier 'rcu' 1532 | __releases(rcu) | ^~~ 4 errors generated. vim +/rcu +1507 include/linux/memcontrol.h 1504 1505 static inline void lruvec_lock_irq(struct lruvec *lruvec) 1506 __acquires(&lruvec->lru_lock) > 1507 __acquires(rcu) 1508 { 1509 rcu_read_lock(); 1510 spin_lock_irq(&lruvec->lru_lock); 1511 } 1512 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki