From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (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 D79B91272D6 for ; Fri, 24 May 2024 05:54:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716530073; cv=none; b=ScXE1jBdAdTsQTjpF2EfKsRfGaGu//TnBgcCl0v205D7+WZ6rDVsG/zKMtu15rj/LrnM6E2zt5ixBB7gqz+1fzadUzIKghACbhkZJUDSx9r4poevjmiL+5Lk31Xvuum42deDcKTaJdqJStKBihivoXp6hPaFESJt9txsF4gy2SM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716530073; c=relaxed/simple; bh=wR8rUQACo/Q4pIO6BcwJTj40/z8mHALtyajLOOSORS8=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=Wt+LoZTDZDcyDzF96axezDMezZpuY+PXUaLAglpAnHiGSTuZ/QMngVlXziBB6B7Jo6vyXriwGCCZjLCMDrDFlFHoeFU9Xs1TRJ98YfmEJXOZMxSyA81JJGXxiNaSmK8K8lRqxdaeamXe7qPt6cSKuzqFRC8MaVHi6Yo9UQkLciE= 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=mQUq88SS; arc=none smtp.client-ip=192.198.163.15 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="mQUq88SS" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1716530072; x=1748066072; h=date:from:to:cc:subject:message-id:mime-version; bh=wR8rUQACo/Q4pIO6BcwJTj40/z8mHALtyajLOOSORS8=; b=mQUq88SSrxtcQ9/dfaAJhdKkWKa0iyAfrkRMOsntiMAkc5qeBUpMwaYk c7K14ozWwmqCxOh8zAspLhOlYEjv+YapNsT4FMyBVhgPTVC6VPV2w/ULI VJ0DkQV8JNy/rA3/Tzii/BjSvQnOLi2WG845Zr7G78OaI4aLz7CXl2m3Q t9YwQR/8DPf2L6mtF2KVjSyb1T4AV3lbLIPBxHBBUrPTDevsfk0+O7MdT rAr51nJfpx8FKTUNm2LbOHqk++uZjMkLv+6LQiPgElB4KkPDjLR06R8w3 feebhGlpV7BcgeATW/E25Uy4iPOCulXEsYHDEO2leIXzspbiAgdzNX7mA w==; X-CSE-ConnectionGUID: NuJL7HRcQXyBNtg/tm5vRA== X-CSE-MsgGUID: Z5E1M1TvS4eIjucLaonzAA== X-IronPort-AV: E=McAfee;i="6600,9927,11081"; a="13079015" X-IronPort-AV: E=Sophos;i="6.08,184,1712646000"; d="scan'208";a="13079015" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 May 2024 22:54:32 -0700 X-CSE-ConnectionGUID: lXZLfJuYSUWYrD/CVMvlAA== X-CSE-MsgGUID: J8lFF2VeRnmMBbSpa8FSPA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,184,1712646000"; d="scan'208";a="38481817" Received: from unknown (HELO 0610945e7d16) ([10.239.97.151]) by fmviesa004.fm.intel.com with ESMTP; 23 May 2024 22:54:30 -0700 Received: from kbuild by 0610945e7d16 with local (Exim 4.96) (envelope-from ) id 1sANsp-0003w5-25; Fri, 24 May 2024 05:54:27 +0000 Date: Fri, 24 May 2024 13:53:35 +0800 From: kernel test robot To: Alexander Egorenkov Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Alexander Gordeev , Heiko Carstens Subject: arch/s390/kernel/ipl.c:1973 sys_vmcmd_on_reboot_store() warn: unsigned 'len' is never less than zero. Message-ID: <202405241351.CnSo0Sim-lkp@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 6d69b6c12fce479fde7bc06f686212451688a102 commit: 247576bf624a200b9d4dba6126e760af0d5ebe0e s390/ipl: Do not accept z/VM CP diag X'008' cmds longer than max length date: 9 days ago config: s390-randconfig-r081-20240524 (https://download.01.org/0day-ci/archive/20240524/202405241351.CnSo0Sim-lkp@intel.com/config) compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6) 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/202405241351.CnSo0Sim-lkp@intel.com/ smatch warnings: arch/s390/kernel/ipl.c:1973 sys_vmcmd_on_reboot_store() warn: unsigned 'len' is never less than zero. arch/s390/kernel/ipl.c:1974 sys_vmcmd_on_panic_store() warn: unsigned 'len' is never less than zero. arch/s390/kernel/ipl.c:1975 sys_vmcmd_on_halt_store() warn: unsigned 'len' is never less than zero. arch/s390/kernel/ipl.c:1976 sys_vmcmd_on_poff_store() warn: unsigned 'len' is never less than zero. arch/s390/kernel/ipl.c:1977 sys_vmcmd_on_restart_store() warn: unsigned 'len' is never less than zero. vim +/len +1973 arch/s390/kernel/ipl.c 99ca4e582d4a40 Michael Holzheu 2008-01-26 1972 99ca4e582d4a40 Michael Holzheu 2008-01-26 @1973 DEFINE_IPL_ATTR_STR_RW(vmcmd, on_reboot, "%s\n", "%s\n", vmcmd_on_reboot); 99ca4e582d4a40 Michael Holzheu 2008-01-26 @1974 DEFINE_IPL_ATTR_STR_RW(vmcmd, on_panic, "%s\n", "%s\n", vmcmd_on_panic); 99ca4e582d4a40 Michael Holzheu 2008-01-26 @1975 DEFINE_IPL_ATTR_STR_RW(vmcmd, on_halt, "%s\n", "%s\n", vmcmd_on_halt); 99ca4e582d4a40 Michael Holzheu 2008-01-26 @1976 DEFINE_IPL_ATTR_STR_RW(vmcmd, on_poff, "%s\n", "%s\n", vmcmd_on_poff); 7dd6b3343fdc19 Michael Holzheu 2011-08-03 @1977 DEFINE_IPL_ATTR_STR_RW(vmcmd, on_restart, "%s\n", "%s\n", vmcmd_on_restart); 99ca4e582d4a40 Michael Holzheu 2008-01-26 1978 :::::: The code at line 1973 was first introduced by commit :::::: 99ca4e582d4a4088969681efff97be44d98421a1 [S390] kernel: Shutdown Actions Interface :::::: TO: Michael Holzheu :::::: CC: Martin Schwidefsky -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki