linux-kernel - Re: [PATCH v1] tmpfs: Unsigned expression compared with zero

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Message-ID: <202411221128.qSNFAkty-lkp@intel.com>
Date: Fri, 22 Nov 2024 11:31:16 +0800
From: kernel test robot <lkp@...el.com>
To: guanjing <guanjing@...s.chinamobile.com>, krisman@...nel.org,
	hughd@...gle.com, akpm@...ux-foundation.org, andrealmeid@...lia.com,
	brauner@...nel.org, tytso@....edu
Cc: oe-kbuild-all@...ts.linux.dev, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	guanjing <guanjing@...s.chinamobile.com>
Subject: Re: [PATCH v1] tmpfs: Unsigned expression compared with zero

Hi guanjing,

kernel test robot noticed the following build warnings:

[auto build test WARNING on brauner-vfs/vfs.all]
[also build test WARNING on linus/master next-20241121]
[cannot apply to v6.12]
[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/guanjing/tmpfs-Unsigned-expression-compared-with-zero/20241121-152806
base:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git vfs.all
patch link:    https://lore.kernel.org/r/20241120105150.24008-1-guanjing%40cmss.chinamobile.com
patch subject: [PATCH v1] tmpfs: Unsigned expression compared with zero
config: arc-randconfig-001-20241122 (https://download.01.org/0day-ci/archive/20241122/202411221128.qSNFAkty-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241122/202411221128.qSNFAkty-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/202411221128.qSNFAkty-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> fs/unicode/utf8-core.c:225: warning: Function parameter or struct member 'version_str' not described in 'utf8_parse_version'


vim +225 fs/unicode/utf8-core.c

9d53690f0d4e56 Gabriel Krisman Bertazi 2019-04-25  216  
142fa60f61f938 André Almeida           2024-10-21  217  /**
142fa60f61f938 André Almeida           2024-10-21  218   * utf8_parse_version - Parse a UTF-8 version number from a string
142fa60f61f938 André Almeida           2024-10-21  219   *
142fa60f61f938 André Almeida           2024-10-21  220   * @version: input string
142fa60f61f938 André Almeida           2024-10-21  221   *
fd9b2236cc1a2d guanjing                2024-11-20  222   * Returns 0 on success, negative code on error
142fa60f61f938 André Almeida           2024-10-21  223   */
fd9b2236cc1a2d guanjing                2024-11-20  224  int utf8_parse_version(char *version_str, unsigned int *version)
142fa60f61f938 André Almeida           2024-10-21 @225  {

-- 
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https://github.com/intel/lkp-tests/wiki