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 E5265261B71; Thu, 28 May 2026 15:28:37 +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=1779982118; cv=none; b=dvUFKWve/gwKGmhd+83PUjJysuU7Tsvodi2qGA+9gxrdx3ldfLz3Rn5QEbTnJu3y53NQtOUOpPWxoVVdMzmYjpvs5T48iAzelmiB1V+E6XyzvKq3u9Kq2+rwnmfCgPiypVmklrPAeuMtigKSf12mFkOg1eeYFyxZV+/MpsanI3I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779982118; c=relaxed/simple; bh=h6gIQSh7EnSLP0hziwCdjn4VeCMknpf+zkhPz4Yk5XQ=; h=Date:From:To:Cc:Subject:Message-ID; b=jA03YWKwfMdkpkl2t65S+ssZJODUMSW3d8EeknZus+krcOeniDYHacddTszq9+o3+Z8NZ6X++s0nCH4C+Mat/QXe70RfPZumRh1662ALnzLJxcF/6G1v8946Ev/8aCL5sNQSp/9h8ezpEGiyWGP2+Zt/4jFLQOd3XxcsutWIdFI= 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=IKTxhQRi; 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="IKTxhQRi" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1779982118; x=1811518118; h=date:from:to:cc:subject:message-id; bh=h6gIQSh7EnSLP0hziwCdjn4VeCMknpf+zkhPz4Yk5XQ=; b=IKTxhQRiXivgtvBs7dDkMWacEOrHMNFfp6l5X+Cby62zp1WracOjyJ74 FXHAs86jMG3xMVEz26UkWqxxgAnMe+DerXmuO7PE7ozqxIIQLUTFV3SAX orw3VFKabzQJYKxTJmByxG+29Ara8OEBcllwObOyOOlJz216sTuH8BVP9 Meh9kgYDeuRzf1UQ/7ktTlqNy1w94I44ZlfflcM5HVnw9XRRbw01IDleO iVlACyNgPC9MEAVNFvbE0f334MNYHyK5+lxpPqX5+H6GyD4okonmtSZI+ if9PS5D+h0j08IJXeHaADhz2sAhWULMG/lT9lo52rgyPjA3rDqR3NvCPR g==; X-CSE-ConnectionGUID: oFxoWpwgRsCHTy94tdt5kw== X-CSE-MsgGUID: y4o0RIHkSayXKlQefn3gvQ== X-IronPort-AV: E=McAfee;i="6800,10657,11800"; a="79975587" X-IronPort-AV: E=Sophos;i="6.24,173,1774335600"; d="scan'208";a="79975587" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 May 2026 08:28:37 -0700 X-CSE-ConnectionGUID: DMwmCKApSv+F9qWfLRbzpA== X-CSE-MsgGUID: e7+FBSsnRKK8gBnb32NJVQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.24,173,1774335600"; d="scan'208";a="238399635" Received: from lkp-server01.sh.intel.com (HELO f0d55cb201f0) ([10.239.97.150]) by fmviesa010.fm.intel.com with ESMTP; 28 May 2026 08:28:35 -0700 Received: from kbuild by f0d55cb201f0 with local (Exim 4.98.2) (envelope-from ) id 1wSceu-0000000064g-0QZ5; Thu, 28 May 2026 15:28:32 +0000 Date: Thu, 28 May 2026 23:28:25 +0800 From: kernel test robot To: "Mike Rapoport (Microsoft)" Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, David Hildenbrand , Andrew Morton , Linux Memory Management List , mm-commits@vger.kernel.org Subject: [akpm-mm:mm-unstable 273/420] mm/userfaultfd.c:4475:1: warning: alias and aliasee have different types 'long (int)' and 'long (typeof (__builtin_choose_expr((__builtin_types_compatible_p(typeof ((int)0), typeof (0LL)) || __builtin_types_compatible_p(typeof ((int)0), typeof (0ULL))), 0... Message-ID: <202605282311.BlbuvsRF-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable head: 8a74e22643189e0ae339afc91110ddb4cab1941b commit: 688eee218159283140c8c4b48429cfe400cb64e4 [273/420] userfaultfd: merge fs/userfaultfd.c into mm/userfaultfd.c config: arm-randconfig-003-20260528 (https://download.01.org/0day-ci/archive/20260528/202605282311.BlbuvsRF-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 9409c07de6378507397ecdb6f05f628f58110112) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260528/202605282311.BlbuvsRF-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/202605282311.BlbuvsRF-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/userfaultfd.c:4475:1: warning: alias and aliasee have different types 'long (int)' and 'long (typeof (__builtin_choose_expr((__builtin_types_compatible_p(typeof ((int)0), typeof (0LL)) || __builtin_types_compatible_p(typeof ((int)0), typeof (0ULL))), 0LL, 0L)))' (aka 'long (long)') [-Wattribute-alias] 4475 | SYSCALL_DEFINE1(userfaultfd, int, flags) | ^ include/linux/syscalls.h:225:36: note: expanded from macro 'SYSCALL_DEFINE1' 225 | #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) | ^ include/linux/syscalls.h:236:2: note: expanded from macro 'SYSCALL_DEFINEx' 236 | __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) | ^ include/linux/syscalls.h:251:18: note: expanded from macro '__SYSCALL_DEFINEx' 251 | __attribute__((alias(__stringify(__se_sys##name)))); \ | ^ mm/userfaultfd.c:4475:1: note: aliasee is declared here include/linux/syscalls.h:225:36: note: expanded from macro 'SYSCALL_DEFINE1' 225 | #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) | ^ include/linux/syscalls.h:236:2: note: expanded from macro 'SYSCALL_DEFINEx' 236 | __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) | ^ include/linux/syscalls.h:255:18: note: expanded from macro '__SYSCALL_DEFINEx' 255 | asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ | ^ :46:1: note: expanded from here 46 | __se_sys_userfaultfd | ^ 1 warning generated. vim +4475 mm/userfaultfd.c 4474 > 4475 SYSCALL_DEFINE1(userfaultfd, int, flags) 4476 { 4477 if (!userfaultfd_syscall_allowed(flags)) 4478 return -EPERM; 4479 4480 return new_userfaultfd(flags); 4481 } 4482 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki