From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.12]) (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 EF1EB3A900B for ; Mon, 31 Aug 2026 18:10:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.12 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788199854; cv=none; b=evuoOkgILsC6oi/e8m/LKLdx08EAwRUJWeCP+mkPfFoQ2hfxUM1yJzHnZt+xHQMZm9kmTazIiOH+Sh6oxbMDsQlSQZ+P27qsfBeiMVIAgQNZkZNU2QxH3NhPKLRTZv1Sl9XM0k3GqlJzf+XxOKSWIJsP6EX/Rvnd+Swuba/C8+k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788199854; c=relaxed/simple; bh=TpBAultzycBZwCZ1SJIVgSffLoq6qcKgRM84uufJsiA=; h=Date:From:To:Cc:Subject:Message-ID; b=VRQtS1qSNOw9wOcE6CeMQsXmw8HJM8GGAitR3lubz0twLYrz1sm/0IMvnHZ1wy5vmkHQ9N+kZT+q9qm6Bz9yKhkBIiwPCdBIVE4Re1zT4MWIUsJBN1b8UcmLTeFsWXrSwFmsXB8adaScueoXSPkgNftcqtW20LPcUCHBjYV2z2Y= 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=nc6JPhd2; arc=none smtp.client-ip=198.175.65.12 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="nc6JPhd2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1788199852; x=1819735852; h=date:from:to:cc:subject:message-id; bh=TpBAultzycBZwCZ1SJIVgSffLoq6qcKgRM84uufJsiA=; b=nc6JPhd25w0H3e8TsAGz4uutZPDYFxFD3JFwoZwKnYzIbmxQMS9/AN4j chC/JjLQj/3hFlfaOBb98qEb06tsv4qkIGWXJEuRAjU1RfPf8ZrOoLatB c+ncwBo0Lt8Izz7wXyNdfAguhK66xAL5eP+7RE8UIxfMPy3elSiCC8eOM Mz1CKKFfmFD7sSYjjWqu7NJfNUmpB0zVB4bD0cey0DXKbHz+FzgRwpuYP SgJTHWyiNq3RnA2KtuozfBxoJeICZLnuwdVigXPem2uoR1OCQ/Mn/xJXi sH6rggtiQ69TLPdN5fkM8ykCIgvbWsjpxdj4imRd4ohbf4/ZVsp4xAiU1 g==; X-CSE-ConnectionGUID: ZBiU11gwSfSl2rTCJwfivw== X-CSE-MsgGUID: I++7bxXOTGWP1jpxaNXg1A== X-IronPort-AV: E=McAfee;i="6800,10657,11892"; a="100127836" X-IronPort-AV: E=Sophos;i="6.25,254,1779174000"; d="scan'208";a="100127836" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by orvoesa104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Aug 2026 11:10:51 -0700 X-CSE-ConnectionGUID: TRuOkF7ZSC62tRNjAa1QsA== X-CSE-MsgGUID: hFxahqXFSIeRt4Jcgu/zvg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,254,1779174000"; d="scan'208";a="292359270" Received: from lkp-server01.sh.intel.com (HELO 78edef60ff5d) ([10.239.97.150]) by fmviesa002.fm.intel.com with ESMTP; 31 Aug 2026 11:10:50 -0700 Received: from kbuild by 78edef60ff5d with local (Exim 4.98.2) (envelope-from ) id 1x16T1-000000000zF-350a; Mon, 31 Aug 2026 18:10:47 +0000 Date: Tue, 01 Sep 2026 02:10:04 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Julia Lawall Subject: fs/proc/base.c:3279:4-39: opportunity for str_yes_no(mm_flags_test ( MMF_VM_MERGE_ANY , mm )) Message-ID: <202609010248.vFbMtF1I-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev CC: linux-kernel@vger.kernel.org TO: Lorenzo Stoakes CC: Andrew Morton CC: Linux Memory Management List CC: "Liam R. Howlett" CC: "Mike Rapoport (Microsoft)" Hi Lorenzo, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: cee9395acd8043be0644b25c34bfa86623f2b935 commit: d14d3f535e13ff0661b9a74133a8d6b9f9950712 mm: convert remaining users to mm_flags_*() accessors date: 12 months ago :::::: branch date: 21 hours ago :::::: commit date: 12 months ago config: arc-randconfig-r053-20260831 (https://download.01.org/0day-ci/archive/20260901/202609010248.vFbMtF1I-lkp@intel.com/config) compiler: arc-linux-gcc (GCC) 9.5.0 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 | Fixes: d14d3f535e13 ("mm: convert remaining users to mm_flags_*() accessors") | Reported-by: kernel test robot | Reported-by: Julia Lawall | Closes: https://lore.kernel.org/r/202609010248.vFbMtF1I-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) fs/proc/base.c:3286:4-29: opportunity for str_yes_no(ksm_process_mergeable ( mm )) >> fs/proc/base.c:3279:4-39: opportunity for str_yes_no(mm_flags_test ( MMF_VM_MERGE_ANY , mm )) vim +3279 fs/proc/base.c 7c23b330011690 Josh Poimboeuf 2017-02-13 3251 7609385337a4fe xu xin 2022-04-28 3252 #ifdef CONFIG_KSM 7609385337a4fe xu xin 2022-04-28 3253 static int proc_pid_ksm_merging_pages(struct seq_file *m, struct pid_namespace *ns, 7609385337a4fe xu xin 2022-04-28 3254 struct pid *pid, struct task_struct *task) 7609385337a4fe xu xin 2022-04-28 3255 { 7609385337a4fe xu xin 2022-04-28 3256 struct mm_struct *mm; 7609385337a4fe xu xin 2022-04-28 3257 7609385337a4fe xu xin 2022-04-28 3258 mm = get_task_mm(task); 7609385337a4fe xu xin 2022-04-28 3259 if (mm) { 7609385337a4fe xu xin 2022-04-28 3260 seq_printf(m, "%lu\n", mm->ksm_merging_pages); 7609385337a4fe xu xin 2022-04-28 3261 mmput(mm); 7609385337a4fe xu xin 2022-04-28 3262 } 7609385337a4fe xu xin 2022-04-28 3263 7609385337a4fe xu xin 2022-04-28 3264 return 0; 7609385337a4fe xu xin 2022-04-28 3265 } cb4df4cae4f2bd xu xin 2022-08-30 3266 static int proc_pid_ksm_stat(struct seq_file *m, struct pid_namespace *ns, cb4df4cae4f2bd xu xin 2022-08-30 3267 struct pid *pid, struct task_struct *task) cb4df4cae4f2bd xu xin 2022-08-30 3268 { cb4df4cae4f2bd xu xin 2022-08-30 3269 struct mm_struct *mm; 3ab76c767bc783 xu xin 2025-01-10 3270 int ret = 0; cb4df4cae4f2bd xu xin 2022-08-30 3271 cb4df4cae4f2bd xu xin 2022-08-30 3272 mm = get_task_mm(task); cb4df4cae4f2bd xu xin 2022-08-30 3273 if (mm) { cb4df4cae4f2bd xu xin 2022-08-30 3274 seq_printf(m, "ksm_rmap_items %lu\n", mm->ksm_rmap_items); c2dc78b86e0821 Chengming Zhou 2024-05-28 3275 seq_printf(m, "ksm_zero_pages %ld\n", mm_ksm_zero_pages(mm)); d21077fbc2fc98 Stefan Roesch 2023-04-17 3276 seq_printf(m, "ksm_merging_pages %lu\n", mm->ksm_merging_pages); d21077fbc2fc98 Stefan Roesch 2023-04-17 3277 seq_printf(m, "ksm_process_profit %ld\n", ksm_process_profit(mm)); 3ab76c767bc783 xu xin 2025-01-10 3278 seq_printf(m, "ksm_merge_any: %s\n", d14d3f535e13ff Lorenzo Stoakes 2025-08-12 @3279 mm_flags_test(MMF_VM_MERGE_ANY, mm) ? "yes" : "no"); 3ab76c767bc783 xu xin 2025-01-10 3280 ret = mmap_read_lock_killable(mm); 3ab76c767bc783 xu xin 2025-01-10 3281 if (ret) { 3ab76c767bc783 xu xin 2025-01-10 3282 mmput(mm); 3ab76c767bc783 xu xin 2025-01-10 3283 return ret; 3ab76c767bc783 xu xin 2025-01-10 3284 } 3ab76c767bc783 xu xin 2025-01-10 3285 seq_printf(m, "ksm_mergeable: %s\n", 3ab76c767bc783 xu xin 2025-01-10 3286 ksm_process_mergeable(mm) ? "yes" : "no"); 3ab76c767bc783 xu xin 2025-01-10 3287 mmap_read_unlock(mm); cb4df4cae4f2bd xu xin 2022-08-30 3288 mmput(mm); cb4df4cae4f2bd xu xin 2022-08-30 3289 } cb4df4cae4f2bd xu xin 2022-08-30 3290 cb4df4cae4f2bd xu xin 2022-08-30 3291 return 0; cb4df4cae4f2bd xu xin 2022-08-30 3292 } 7609385337a4fe xu xin 2022-04-28 3293 #endif /* CONFIG_KSM */ 7609385337a4fe xu xin 2022-04-28 3294 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki