From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.18]) (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 0E3911D6DA1 for ; Thu, 5 Dec 2024 14:03:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733407385; cv=none; b=TymnYKXpYhgvvMw0hMJG7pkDySknOwBf2UHZPyyaz0H5hg4t+f6GWgWXAiDfnDwWXhj0dT3Zlw9xafhwjU37mFU7OhJf7nnwmoke5xpmv5nq3KQpskZg+YbFIIRu/iUmLQ/bHwU9wS+2JtQAwstrrMUQ0e1/hMMXezRH6vaC/l8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733407385; c=relaxed/simple; bh=3kEXiJLlnYSuzkHnXZ1BabgAuuDSBSP8ND4pQEjG7BM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ST7uVS+Js+g0cb5+F5SuJL8Nx3539jXqwGGvboJaAiE4Viw0FiakNAD4MYSWcY8RQc8IPEW2of8ECnLqkJFZjTxC45YdttWI3AHYMrcBHQAZEP3p/rex7w/36qDcCRo5z95/NhbQjzmD7hbGv7uAGGO+j0OzLmkHqfENI+fyzS4= 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=IUSnms22; arc=none smtp.client-ip=198.175.65.18 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="IUSnms22" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1733407384; x=1764943384; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=3kEXiJLlnYSuzkHnXZ1BabgAuuDSBSP8ND4pQEjG7BM=; b=IUSnms22WoO8mZ2yF+HdCA39LGomzcQUXQyOvuREvH9EivXO26zDvOqo zuJQ+6P/63VZynU/zGQLME01GNpf1JvghjpMnab54bERl0deUkHMvebNn 2v4TvmtEMe54+Lvy30cxRZHCYQR8vd3Eyp2U2tkdyxA0D4ATUBmRyRnyY iGqArWMIiJmzDxLH6B0XOyA1z9cz1Ik/t//9SXxLjm5qzIu/frPUzE2Rp u1UWKMbt2N17lMQOk1jhPSv+NxO6n+5WiM98/IrP2bxSf/i9GDmxdy9uI UHl5GGHgt5eGw5DQPDnh3w6AOLGt60rj1IVCmdBfUbOdYQ08FmwDfIVpV A==; X-CSE-ConnectionGUID: Y1+nmuiZSCOyFdm0aOvGkw== X-CSE-MsgGUID: /novtb5JTYy3Dboiw2FNHQ== X-IronPort-AV: E=McAfee;i="6700,10204,11276"; a="33865010" X-IronPort-AV: E=Sophos;i="6.12,210,1728975600"; d="scan'208";a="33865010" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Dec 2024 06:03:04 -0800 X-CSE-ConnectionGUID: JtlULMVbT26iiK6GuSHWjA== X-CSE-MsgGUID: MaqpSYwgTPSSLGC3BtuRgA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,210,1728975600"; d="scan'208";a="94577836" Received: from lkp-server01.sh.intel.com (HELO 82a3f569d0cb) ([10.239.97.150]) by fmviesa009.fm.intel.com with ESMTP; 05 Dec 2024 06:03:02 -0800 Received: from kbuild by 82a3f569d0cb with local (Exim 4.96) (envelope-from ) id 1tJCRY-00003j-1Y; Thu, 05 Dec 2024 14:03:00 +0000 Date: Thu, 5 Dec 2024 22:02:07 +0800 From: kernel test robot To: Lorenzo Stoakes Cc: oe-kbuild-all@lists.linux.dev Subject: Re: [PATCH 4/5] mm/vma: move stack expansion logic to mm/vma.c Message-ID: <202412052111.B5Jmi2yT-lkp@intel.com> References: <0feb104eff85922019d4fb29280f3afb130c5204.1733248985.git.lorenzo.stoakes@oracle.com> Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0feb104eff85922019d4fb29280f3afb130c5204.1733248985.git.lorenzo.stoakes@oracle.com> Hi Lorenzo, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Lorenzo-Stoakes/mm-vma-move-brk-internals-to-mm-vma-c/20241204-115150 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/0feb104eff85922019d4fb29280f3afb130c5204.1733248985.git.lorenzo.stoakes%40oracle.com patch subject: [PATCH 4/5] mm/vma: move stack expansion logic to mm/vma.c config: x86_64-randconfig-161-20241205 (https://download.01.org/0day-ci/archive/20241205/202412052111.B5Jmi2yT-lkp@intel.com/config) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) 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/202412052111.B5Jmi2yT-lkp@intel.com/ smatch warnings: mm/vma.c:2816 expand_downwards() warn: unsigned 'address' is never less than zero. vim +/address +2816 mm/vma.c 2798 2799 /* 2800 * vma is the first one with address < vma->vm_start. Have to extend vma. 2801 * mmap_lock held for writing. 2802 */ 2803 int expand_downwards(struct vm_area_struct *vma, unsigned long address) 2804 { 2805 struct mm_struct *mm = vma->vm_mm; 2806 struct vm_area_struct *prev; 2807 int error = 0; 2808 VMA_ITERATOR(vmi, mm, vma->vm_start); 2809 2810 if (!(vma->vm_flags & VM_GROWSDOWN)) 2811 return -EFAULT; 2812 2813 mmap_assert_write_locked(mm); 2814 2815 address &= PAGE_MASK; > 2816 if (address < mmap_min_addr || address < FIRST_USER_ADDRESS) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki