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X-CSE-ConnectionGUID: gjWZGj0KRi6KNOqN0d0uVQ== X-CSE-MsgGUID: BaWLw3k7QsOAFAOSXQ7FUA== X-IronPort-AV: E=McAfee;i="6800,10657,11627"; a="65419290" X-IronPort-AV: E=Sophos;i="6.20,236,1758610800"; d="scan'208";a="65419290" 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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251128170442.2988502-2-senozhatsky@chromium.org> X-Rspamd-Queue-Id: B4CE620002 X-Rspamd-Server: rspam02 X-Stat-Signature: tpkpdwtznj7it3oixssr3xgp6to7k6h8 X-Rspam-User: X-HE-Tag: 1764407278-574567 X-HE-Meta: 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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