From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) (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 8E17C64A for ; Sun, 15 Sep 2024 00:14:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726359270; cv=none; b=P4yv49yTTLy613nwWG9zQzwngbPfIkomarm6B9CNop0hZRl/3lluvHz1L2vMXin1bW+R8nl4ieIGESPwXevzUnD7lAPzI21EyfXAGk+aFSJaqkMovNWdHD6pgWiPgm2riTJEnrfEdv5p6wdji8G4yP9mNHy08Bh0zEMLRFeo0U0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726359270; c=relaxed/simple; bh=BdYacXOqQohaxunfJ3Ex29cYyhUX8gvn4VF/Sr/EtnE=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=haGZUIsUBLirmrZitRcABbW5t3XS7OATZ5Hwe++3gjjc1l6Qet5+T2zD4EVWmMumICZYkvWPl5AZ4bPbxtkAHZNhLXHmminJ5O7Mc8/tDArQwbKulnM3YZ2GhCoCM+v2obmXIT9d07UPI1gm5S13sWS7CcUnQ3GWy2PLfPSG/gw= 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=TjVqZKo9; arc=none smtp.client-ip=192.198.163.10 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="TjVqZKo9" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1726359268; x=1757895268; h=date:from:to:cc:subject:message-id:mime-version; bh=BdYacXOqQohaxunfJ3Ex29cYyhUX8gvn4VF/Sr/EtnE=; b=TjVqZKo9vjOe7ervMWX4sVoL0puSiW1iCWBWrFnSnOHh/Ou7nlifArtw S6e/U07g9Yy9dgMiQk7631IsXRNPUG+qsDZeQv2xkQN+46rL2610a3gVa 9snyW4c87nwTcaGXfgj+E569xXNkCwWWg8ppzayxrlqmN7vMYgQ8jmZUw IcXtw/1Ms2ibiF1B4JWDOe8MSTEo9O0wyeoDQs8M5C+lb12/qNB13wMlb SPDh80Rj6H8UbcgTTtyxwr5PP+5ZhJfQPC3OS3OkG5eoJNu3/Hjesk1v+ OQQ9yZBPrdYX+MLvPxPYJZIljRDvhuGbZ3EqCuVwmWKaIjQozs8+ouTwY Q==; X-CSE-ConnectionGUID: lIymC5bYQd+ufGFBqWVPXA== X-CSE-MsgGUID: 8yHMrstSRm+KGP5wiwq0gg== X-IronPort-AV: E=McAfee;i="6700,10204,11195"; a="36611763" X-IronPort-AV: E=Sophos;i="6.10,230,1719903600"; d="scan'208";a="36611763" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Sep 2024 17:14:28 -0700 X-CSE-ConnectionGUID: AxzMmjRSSG+5FSiUoBekfg== X-CSE-MsgGUID: 9YwPrlfTTPmOOoh1T0bihg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,230,1719903600"; d="scan'208";a="73330222" Received: from lkp-server01.sh.intel.com (HELO 53e96f405c61) ([10.239.97.150]) by orviesa005.jf.intel.com with ESMTP; 14 Sep 2024 17:14:25 -0700 Received: from kbuild by 53e96f405c61 with local (Exim 4.96) (envelope-from ) id 1spcuD-0008Gs-36; Sun, 15 Sep 2024 00:14:21 +0000 Date: Sun, 15 Sep 2024 08:13:32 +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: <202409150811.A0rDxG88-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: 0babf683783ddca06551537c6781e413cfe8d27b commit: 247576bf624a200b9d4dba6126e760af0d5ebe0e s390/ipl: Do not accept z/VM CP diag X'008' cmds longer than max length date: 4 months ago config: s390-randconfig-r072-20240915 (https://download.01.org/0day-ci/archive/20240915/202409150811.A0rDxG88-lkp@intel.com/config) compiler: s390-linux-gcc (GCC) 14.1.0 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 | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202409150811.A0rDxG88-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