From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (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 4BA732AE78; Sat, 29 Nov 2025 09:07:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764407279; cv=none; b=RDZsq704WU/mW5T/VJZMIhcVe3C6RFFr98USJb6itU/R8IDVBqIkmv+T6BAhHniYEwhZPyb03vqre4i1atYCcf70j+vn0U+EB9LTFmv4az7FOSxP3e12MVNbW99K26ZiIVaOtf2lOQjbNUON4LopKsx92DPzaYfaJYNrN/YNG08= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764407279; c=relaxed/simple; bh=LaFWmCSuL4KQQ+UT/MEIhGMRgAIrz8Sy2tDbRWfHTC8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ePmtTWW7xkAoPbT/Nnd2D/26bm3wQgpJJU4u1Mi6+RlL7IwhWODZhMSZ+S6eXLPptzuAUtv8TLWFrTg739C7clIN8Z0vkFjsFXwy0Bceg4Pav904d3WXFcpVdwvEfU3YB4X5ghNJFkS77BVei4/C5RQP0aHdPSElHTkDpqS8rE8= 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=k/vN6QfU; arc=none smtp.client-ip=192.198.163.19 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="k/vN6QfU" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1764407277; x=1795943277; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=LaFWmCSuL4KQQ+UT/MEIhGMRgAIrz8Sy2tDbRWfHTC8=; b=k/vN6QfU4CBWujrdj/sHFhpODHlC5EHgnpQH6lkFiEPbYG3kyQFVrPgp 3gMz9adH9SlIcWMIWnzv69rPt6dQ44eIazTCiws+vB2BctZKO3lHCLFcE QJ7BcrwGlGgDAVRfTJWqw1TjT17YJ38/SA15WRXeyx9isGuq7W5TOg6uq j2tHOXlIwSHHQDG/MV8F3Co+I3E7zr6JaBHlJtriowcRJBkqDyLLSJeJn JNN28Qq488MGqGY4+fHGYYNw2td2GrhE/qhaai8YOX9sqkrYKv9Lc0wq8 u61N+EZqCmLA43Y9Fv2FbJ1+BUQZaZSjKWAR/FPlDIsB5dAYrmFO0IrAF A==; X-CSE-ConnectionGUID: o+5XY5E1SfeTH8XAbKl22A== X-CSE-MsgGUID: KH2H2Eg+TGqkNUlEMGfXuQ== X-IronPort-AV: E=McAfee;i="6800,10657,11627"; a="65419288" X-IronPort-AV: E=Sophos;i="6.20,236,1758610800"; d="scan'208";a="65419288" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Nov 2025 01:07:56 -0800 X-CSE-ConnectionGUID: fmPpZhEQRmiKI3VGGnD6Uw== X-CSE-MsgGUID: Iv5FX28QRx6kcI6sEUS0Pw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.20,236,1758610800"; d="scan'208";a="193289632" Received: from lkp-server01.sh.intel.com (HELO 4664bbef4914) ([10.239.97.150]) by fmviesa007.fm.intel.com with ESMTP; 29 Nov 2025 01:07:54 -0800 Received: from kbuild by 4664bbef4914 with local (Exim 4.98.2) (envelope-from ) id 1vPGvo-0000000074r-1bCf; Sat, 29 Nov 2025 09:07:52 +0000 Date: Sat, 29 Nov 2025 17:07:17 +0800 From: kernel test robot To: Sergey Senozhatsky , Andrew Morton , Richard Chang Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , Brian Geffon , Minchan Kim , linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, Sergey Senozhatsky Subject: Re: [PATCH 1/2] zram: introduce compressed data writeback Message-ID: <202511291628.NZif1jdx-lkp@intel.com> References: <20251128170442.2988502-2-senozhatsky@chromium.org> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251128170442.2988502-2-senozhatsky@chromium.org> Hi Sergey, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] [also build test WARNING on next-20251128] [cannot apply to axboe/for-next linus/master v6.18-rc7] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Sergey-Senozhatsky/zram-introduce-compressed-data-writeback/20251129-010716 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20251128170442.2988502-2-senozhatsky%40chromium.org patch subject: [PATCH 1/2] zram: introduce compressed data writeback config: x86_64-randconfig-011-20251129 (https://download.01.org/0day-ci/archive/20251129/202511291628.NZif1jdx-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251129/202511291628.NZif1jdx-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/202511291628.NZif1jdx-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/block/zram/zram_drv.c:2099:12: warning: 'zram_read_from_zspool_raw' defined but not used [-Wunused-function] 2099 | static int zram_read_from_zspool_raw(struct zram *zram, struct page *page, | ^~~~~~~~~~~~~~~~~~~~~~~~~ vim +/zram_read_from_zspool_raw +2099 drivers/block/zram/zram_drv.c 2098 > 2099 static int zram_read_from_zspool_raw(struct zram *zram, struct page *page, 2100 u32 index) 2101 { 2102 struct zcomp_strm *zstrm; 2103 unsigned long handle; 2104 unsigned int size; 2105 void *src; 2106 2107 handle = zram_get_handle(zram, index); 2108 size = zram_get_obj_size(zram, index); 2109 2110 /* 2111 * We need to get stream just for ->local_copy buffer, in 2112 * case if object spans two physical pages. No decompression 2113 * takes place here, as we read raw compressed data. 2114 */ 2115 zstrm = zcomp_stream_get(zram->comps[ZRAM_PRIMARY_COMP]); 2116 src = zs_obj_read_begin(zram->mem_pool, handle, zstrm->local_copy); 2117 memcpy_to_page(page, 0, src, size); 2118 zs_obj_read_end(zram->mem_pool, handle, src); 2119 zcomp_stream_put(zstrm); 2120 2121 return 0; 2122 } 2123 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki