From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (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 83DBCDDC5 for ; Mon, 17 Feb 2025 01:09:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739754562; cv=none; b=Ma+eDVKrd9qnoWBVFrfgkFUAT7k5JJseSsfEArFO0UrOJLgR55WycTlAsJiyqW7o/q2d9Bt/UCLzvCkGR4/Auq8Yt3uSHEFz0o2E4I1mziEuuY3jR6Twb8TX/4zedbxBR4a5vKSupDPaIV5BS8Ztu8obHxPc0IX5VY2MiMYSMZo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739754562; c=relaxed/simple; bh=IyP9K/2xv4Wu5JcOU6n0ubuJzXLjZvryxyFocxIL09c=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=i8/cv+rv2lYeSK011xR5FM0/NVRhKoworNl0AkxTfPNBain3jvFL9JHqaFChfWBV6uC47KOgnplMoHMl7Zjpr+7jr1Ekia7YZEQbqzuQvVFc9yKT4cDlFz4JsCv/SAKVODJHp4ywotLqn/oqFCdNPr+ECbyoBWQGBN0fVCI8boY= 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=ZIqYNGFm; arc=none smtp.client-ip=198.175.65.13 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="ZIqYNGFm" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1739754559; x=1771290559; h=date:from:to:cc:subject:message-id:mime-version; bh=IyP9K/2xv4Wu5JcOU6n0ubuJzXLjZvryxyFocxIL09c=; b=ZIqYNGFmrlho9HAVWEX4yuJvm8T7wsWShezP04YKzg2dS9IkJpyyfr8w K30BH5s9FNLwyY3FXZ1C2NcLofRh26UF5iqOFfEujLBMWl3Kj8feBckR7 u/rr0VmgIylOVAxc62yVMqamRlTXoTw4XSz946ZZKXo8pGYkol7j+xKx6 zi64mw+K29QTPL6/gvIDh+DjWz+VZ1PD36jhwEW6XoftKaqKmzXXHFDgN mUk88lnX9AED7UywjhT7dA8NXfSELcv+mTs6qoZVDOkxEwOuXRZZa/DRt E5YRgJ9/3lKoP/cYvougqPm2M1r/KXTmdZwD5COvbdinbPeHQRQ2b7pcz Q==; X-CSE-ConnectionGUID: srU0G54GTn2g9wAjMmZ8Tw== X-CSE-MsgGUID: YztWpcVIQ1+2aywrKLnJ0Q== X-IronPort-AV: E=McAfee;i="6700,10204,11347"; a="51410563" X-IronPort-AV: E=Sophos;i="6.13,291,1732608000"; d="scan'208";a="51410563" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Feb 2025 17:09:19 -0800 X-CSE-ConnectionGUID: HhaaUKYyReacNHhiBpzScg== X-CSE-MsgGUID: iUPkY01LQ3yGCEIvsPrunQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="118133064" Received: from lkp-server01.sh.intel.com (HELO d63d4d77d921) ([10.239.97.150]) by fmviesa003.fm.intel.com with ESMTP; 16 Feb 2025 17:09:17 -0800 Received: from kbuild by d63d4d77d921 with local (Exim 4.96) (envelope-from ) id 1tjpdL-001CQv-14; Mon, 17 Feb 2025 01:09:15 +0000 Date: Mon, 17 Feb 2025 09:08:43 +0800 From: kernel test robot To: Yunsheng Lin Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Jakub Kicinski , Alexander Duyck Subject: mm/page_frag_cache.c:46 encoded_page_decode_page() warn: unsigned '_x' is never less than zero. Message-ID: <202502170903.Daw5Q7fC-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: 0ad2507d5d93f39619fc42372c347d6006b64319 commit: 0c3ce2f50261cd2f654d931eeb933c370a3a7d7a mm: page_frag: reuse existing space for 'size' and 'pfmemalloc' date: 3 months ago config: riscv-randconfig-r073-20250213 (https://download.01.org/0day-ci/archive/20250217/202502170903.Daw5Q7fC-lkp@intel.com/config) compiler: riscv32-linux-gcc (GCC) 14.2.0 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/202502170903.Daw5Q7fC-lkp@intel.com/ New smatch warnings: mm/page_frag_cache.c:46 encoded_page_decode_page() warn: unsigned '_x' is never less than zero. Old smatch warnings: include/linux/mm.h:1275 virt_to_head_page() warn: unsigned '_x' is never less than zero. vim +/_x +46 mm/page_frag_cache.c 43 44 static struct page *encoded_page_decode_page(unsigned long encoded_page) 45 { > 46 return virt_to_page((void *)encoded_page); 47 } 48 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki