linux-kernel - Re: [PATCH v2 17/20] mm/zsmalloc: convert get/set_first_obj

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Message-ID: <202407052102.qbT7nLMK-lkp@intel.com>
Date: Fri, 5 Jul 2024 22:43:41 +0800
From: kernel test robot <lkp@...el.com>
To: alexs@...nel.org, Vitaly Wool <vitaly.wool@...sulko.com>,
	Miaohe Lin <linmiaohe@...wei.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, minchan@...nel.org,
	willy@...radead.org, senozhatsky@...omium.org, david@...hat.com,
	42.hyeyoo@...il.com, Yosry Ahmed <yosryahmed@...gle.com>,
	nphamcs@...il.com
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	Linux Memory Management List <linux-mm@...ck.org>,
	Alex Shi <alexs@...nel.org>
Subject: Re: [PATCH v2 17/20] mm/zsmalloc: convert get/set_first_obj_offset()
 to take zpdesc

Hi,

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/alexs-kernel-org/mm-zsmalloc-add-zpdesc-memory-descriptor-for-zswap-zpool/20240703-182314
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20240703040613.681396-18-alexs%40kernel.org
patch subject: [PATCH v2 17/20] mm/zsmalloc: convert get/set_first_obj_offset() to take zpdesc
config: i386-randconfig-002-20240705 (https://download.01.org/0day-ci/archive/20240705/202407052102.qbT7nLMK-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240705/202407052102.qbT7nLMK-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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407052102.qbT7nLMK-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> mm/zsmalloc.c:471:12: warning: function 'is_first_zpdesc' is not needed and will not be emitted [-Wunneeded-internal-declaration]
     471 | static int is_first_zpdesc(struct zpdesc *zpdesc)
         |            ^~~~~~~~~~~~~~~
   1 warning generated.


vim +/is_first_zpdesc +471 mm/zsmalloc.c

61989a80fb3ac9 drivers/staging/zsmalloc/zsmalloc-main.c Nitin Gupta 2012-01-09  470  
3844a7927dcecc mm/zsmalloc.c                            Alex Shi    2024-07-03 @471  static int is_first_zpdesc(struct zpdesc *zpdesc)
3844a7927dcecc mm/zsmalloc.c                            Alex Shi    2024-07-03  472  {
3844a7927dcecc mm/zsmalloc.c                            Alex Shi    2024-07-03  473  	return PagePrivate(zpdesc_page(zpdesc));
3844a7927dcecc mm/zsmalloc.c                            Alex Shi    2024-07-03  474  }
3844a7927dcecc mm/zsmalloc.c                            Alex Shi    2024-07-03  475  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki