linux-kernel - Re: [PATCH V2 3/5] sys_info: add help to translate sys

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Message-ID: <202506161234.wRZSzo5v-lkp@intel.com>
Date: Mon, 16 Jun 2025 12:25:29 +0800
From: kernel test robot <lkp@...el.com>
To: Feng Tang <feng.tang@...ux.alibaba.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Petr Mladek <pmladek@...e.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Lance Yang <lance.yang@...ux.dev>, Jonathan Corbet <corbet@....net>,
	linux-kernel@...r.kernel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	Linux Memory Management List <linux-mm@...ck.org>,
	paulmck@...nel.org, john.ogness@...utronix.de,
	Feng Tang <feng.tang@...ux.alibaba.com>
Subject: Re: [PATCH V2 3/5] sys_info: add help to translate sys_info string
 to bitmap

Hi Feng,

kernel test robot noticed the following build warnings:

[auto build test WARNING on akpm-mm/mm-nonmm-unstable]
[also build test WARNING on akpm-mm/mm-everything linus/master v6.16-rc2 next-20250613]
[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/Feng-Tang/panic-clean-up-code-for-console-replay/20250616-091042
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable
patch link:    https://lore.kernel.org/r/20250616010840.38258-4-feng.tang%40linux.alibaba.com
patch subject: [PATCH V2 3/5] sys_info: add help to translate sys_info string to bitmap
config: x86_64-buildonly-randconfig-001-20250616 (https://download.01.org/0day-ci/archive/20250616/202506161234.wRZSzo5v-lkp@intel.com/config)
compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
rustc: rustc 1.78.0 (9b00956e5 2024-04-29)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250616/202506161234.wRZSzo5v-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/202506161234.wRZSzo5v-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> lib/sys_info.c:13:19: warning: unused variable 'sys_info_avail' [-Wunused-const-variable]
      13 | static const char sys_info_avail[] = "tasks,mem,timer,lock,ftrace,all_bt,blocked_tasks";
         |                   ^~~~~~~~~~~~~~
   1 warning generated.


vim +/sys_info_avail +13 lib/sys_info.c

    12	
  > 13	static const char sys_info_avail[] = "tasks,mem,timer,lock,ftrace,all_bt,blocked_tasks";
    14	

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