linux-kernel - Re: [PATCH v4] fs/coredump: Enable dynamic configuration of max file note size

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Date: Wed, 8 May 2024 00:55:47 +0800
From: kernel test robot <lkp@...el.com>
To: Allen Pais <apais@...ux.microsoft.com>, linux-fsdevel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, viro@...iv.linux.org.uk, brauner@...nel.org,
	jack@...e.cz, ebiederm@...ssion.com, keescook@...omium.org,
	mcgrof@...nel.org, j.granados@...sung.com, allen.lkml@...il.com
Subject: Re: [PATCH v4] fs/coredump: Enable dynamic configuration of max file
 note size

Hi Allen,

kernel test robot noticed the following build warnings:

[auto build test WARNING on kees/for-next/execve]
[also build test WARNING on brauner-vfs/vfs.all linus/master v6.9-rc7 next-20240507]
[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/Allen-Pais/fs-coredump-Enable-dynamic-configuration-of-max-file-note-size/20240507-033907
base:   https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/execve
patch link:    https://lore.kernel.org/r/20240506193700.7884-1-apais%40linux.microsoft.com
patch subject: [PATCH v4] fs/coredump: Enable dynamic configuration of max file note size
config: arm64-randconfig-r054-20240507 (https://download.01.org/0day-ci/archive/20240508/202405080045.cTS3F5Or-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240508/202405080045.cTS3F5Or-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/202405080045.cTS3F5Or-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> fs/coredump.c:67:27: warning: 'core_file_note_size_max' defined but not used [-Wunused-const-variable=]
      67 | static const unsigned int core_file_note_size_max = CORE_FILE_NOTE_SIZE_MAX;
         |                           ^~~~~~~~~~~~~~~~~~~~~~~


vim +/core_file_note_size_max +67 fs/coredump.c

    62	
    63	static int core_uses_pid;
    64	static unsigned int core_pipe_limit;
    65	static char core_pattern[CORENAME_MAX_SIZE] = "core";
    66	static int core_name_size = CORENAME_MAX_SIZE;
  > 67	static const unsigned int core_file_note_size_max = CORE_FILE_NOTE_SIZE_MAX;
    68	unsigned int core_file_note_size_min = CORE_FILE_NOTE_SIZE_DEFAULT;
    69	

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