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 8178B2EA499; Wed, 13 Aug 2025 13:39:10 +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=1755092352; cv=none; b=J18O9I8N2iGvkj/cUokg2Ah5LtYFi4hR4R5Aj4/jFTI1tZB1WEgcfV8fDEI9pO7PHWbZXCTWG+ofrUp2GreZpg19svkL6dIy8D0wNpUHzbyX1S4uT4giWBHls/W5zkMGFfVmQxacSKGqi8VLXa4VCzCNQb+T60MfCferwxtI34M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755092352; c=relaxed/simple; bh=ey8eSMdRLAlmFC09vuKwkFOnHkFG0NstFyZA4ySXPNo=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=pqplpefDW02Odnb8JCz/VsNiFoE68axEUd2BUe2PNgbZd1Cfh44901f440rPWxx+bgt5lK5PS/gc0bHTeyJijQhNd2xyKilseMaNtGW7MK/kBQxuWp0VguMxhSi8TmIz1lDHCBXmkd5eTRxz6euasS6Y4oqiH43YFkz2oPp+xAY= 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=UYxs+i2k; 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="UYxs+i2k" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1755092350; x=1786628350; h=date:from:to:cc:subject:message-id:mime-version; bh=ey8eSMdRLAlmFC09vuKwkFOnHkFG0NstFyZA4ySXPNo=; b=UYxs+i2kBqxwP8qZpHre+ecAP5Sk3vD8JwP3JfOjVk10ypKvx00FTfS1 YLzqIWfsWS/9DFpMhMDQAyoeK+5jA8KMNRMPHbkrSPFBirV1d0J7+wI7u MujYKV93BnU8dvBV4RRCY1kquENp/EvBc+ReN/BR0fYtXLEvAU0105VcS yKArPAdgPxeRcixQiSpOSdJIqeHDMjyQHHybb2CJD1TAH5wnpaGWFBo3y /d8Kh+PLRLQDl5dQQ9sz2FGVnEFnPWB4FvlwQdmUaUV73X17ZeMDtitRf 2rprDY/AXPtF73lelCpsOxslpwQTzsts3S5RfAvB16OdLBG2WGCJBB9OH w==; X-CSE-ConnectionGUID: LL2OnvSNQ2imF43jUdDj2Q== X-CSE-MsgGUID: 4EPWexdiS9CFwaRjrSfZMw== X-IronPort-AV: E=McAfee;i="6800,10657,11520"; a="67659877" X-IronPort-AV: E=Sophos;i="6.17,285,1747724400"; d="scan'208";a="67659877" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Aug 2025 06:39:10 -0700 X-CSE-ConnectionGUID: 6KWxgs+yQ02+qcBirhtOmg== X-CSE-MsgGUID: w3KQMHZORJOS1da0gFH+uw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.17,285,1747724400"; d="scan'208";a="165660598" Received: from lkp-server02.sh.intel.com (HELO 4ea60e6ab079) ([10.239.97.151]) by orviesa006.jf.intel.com with ESMTP; 13 Aug 2025 06:39:09 -0700 Received: from kbuild by 4ea60e6ab079 with local (Exim 4.96) (envelope-from ) id 1umBgK-0009wo-1d; Wed, 13 Aug 2025 13:38:31 +0000 Date: Wed, 13 Aug 2025 21:34:15 +0800 From: kernel test robot To: Lorenzo Stoakes Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Andrew Morton , Linux Memory Management List , "Liam R. Howlett" Subject: [akpm-mm:mm-new 123/137] arch/s390/mm/mmap.c:188:3: error: call to undeclared function 'mm_flag_set'; ISO C99 and later do not support implicit function declarations Message-ID: <202508132154.feFNDPyq-lkp@intel.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 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/akpm/mm.git mm-new head: 694c8e78f486b09137ee3efadae044d01aba971b commit: 70fd92efa9e96967353bb39665bac8f5276aaaae [123/137] mm: convert arch-specific code to mm_flags_*() accessors config: s390-allnoconfig (https://download.01.org/0day-ci/archive/20250813/202508132154.feFNDPyq-lkp@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 3769ce013be2879bf0b329c14a16f5cb766f26ce) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250813/202508132154.feFNDPyq-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/202508132154.feFNDPyq-lkp@intel.com/ All errors (new ones prefixed by >>): >> arch/s390/mm/mmap.c:188:3: error: call to undeclared function 'mm_flag_set'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 188 | mm_flag_set(MMF_TOPDOWN, mm); | ^ arch/s390/mm/mmap.c:188:3: note: did you mean 'mm_flags_set'? include/linux/mm.h:740:20: note: 'mm_flags_set' declared here 740 | static inline void mm_flags_set(int flag, struct mm_struct *mm) | ^ 1 error generated. vim +/mm_flag_set +188 arch/s390/mm/mmap.c 167 168 /* 169 * This function, called very early during the creation of a new 170 * process VM image, sets up which VM layout function to use: 171 */ 172 void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack) 173 { 174 unsigned long random_factor = 0UL; 175 176 if (current->flags & PF_RANDOMIZE) 177 random_factor = arch_mmap_rnd(); 178 179 /* 180 * Fall back to the standard layout if the personality 181 * bit is set, or if the expected stack growth is unlimited: 182 */ 183 if (mmap_is_legacy(rlim_stack)) { 184 mm->mmap_base = mmap_base_legacy(random_factor); 185 mm_flags_clear(MMF_TOPDOWN, mm); 186 } else { 187 mm->mmap_base = mmap_base(random_factor, rlim_stack); > 188 mm_flag_set(MMF_TOPDOWN, mm); 189 } 190 } 191 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki