[rw-ubifs:next 19/33] fs/ubifs/find.c:86: warning: Function parameter or struct member 'arg' not described in 'scan_for_dirty_cb'

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs.git next
head:   3ce485803da1b79b2692b6d0c2792829292ad838
commit: ec724e534dfdd592abc5ac066be77ef15c455ccc [19/33] ubifs: fix function pointer cast warnings
config: i386-buildonly-randconfig-001-20240226 (https://download.01.org/0day-ci/archive/20240226/202402261559.cYtMOkIn-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240226/202402261559.cYtMOkIn-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202402261559.cYtMOkIn-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> fs/ubifs/find.c:86: warning: Function parameter or struct member 'arg' not described in 'scan_for_dirty_cb'
>> fs/ubifs/find.c:86: warning: Excess function parameter 'data' description in 'scan_for_dirty_cb'
>> fs/ubifs/find.c:353: warning: Function parameter or struct member 'arg' not described in 'scan_for_free_cb'
>> fs/ubifs/find.c:353: warning: Excess function parameter 'data' description in 'scan_for_free_cb'
>> fs/ubifs/find.c:594: warning: Function parameter or struct member 'arg' not described in 'scan_for_idx_cb'
>> fs/ubifs/find.c:594: warning: Excess function parameter 'data' description in 'scan_for_idx_cb'
>> fs/ubifs/find.c:786: warning: Function parameter or struct member 'arg' not described in 'scan_dirty_idx_cb'
>> fs/ubifs/find.c:786: warning: Excess function parameter 'data' description in 'scan_dirty_idx_cb'
--
>> fs/ubifs/lprops.c:1018: warning: Function parameter or struct member 'arg' not described in 'scan_check_cb'
   fs/ubifs/lprops.c:1018: warning: Excess function parameter 'lst' description in 'scan_check_cb'


vim +86 fs/ubifs/find.c

1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   70  
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   71  /**
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   72   * scan_for_dirty_cb - dirty space scan callback.
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   73   * @c: the UBIFS file-system description object
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   74   * @lprops: LEB properties to scan
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   75   * @in_tree: whether the LEB properties are in main memory
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   76   * @data: information passed to and from the caller of the scan
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   77   *
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   78   * This function returns a code that indicates whether the scan should continue
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   79   * (%LPT_SCAN_CONTINUE), whether the LEB properties should be added to the tree
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   80   * in main memory (%LPT_SCAN_ADD), or whether the scan should stop
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   81   * (%LPT_SCAN_STOP).
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   82   */
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   83  static int scan_for_dirty_cb(struct ubifs_info *c,
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   84  			     const struct ubifs_lprops *lprops, int in_tree,
ec724e534dfdd5 Arnd Bergmann    2024-02-13   85  			     void *arg)
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  @86  {
ec724e534dfdd5 Arnd Bergmann    2024-02-13   87  	struct scan_data *data = arg;
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   88  	int ret = LPT_SCAN_CONTINUE;
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   89  
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   90  	/* Exclude LEBs that are currently in use */
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   91  	if (lprops->flags & LPROPS_TAKEN)
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   92  		return LPT_SCAN_CONTINUE;
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   93  	/* Determine whether to add these LEB properties to the tree */
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   94  	if (!in_tree && valuable(c, lprops))
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   95  		ret |= LPT_SCAN_ADD;
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   96  	/* Exclude LEBs with too little space */
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   97  	if (lprops->free + lprops->dirty < data->min_space)
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   98  		return ret;
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14   99  	/* If specified, exclude index LEBs */
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  100  	if (data->exclude_index && lprops->flags & LPROPS_INDEX)
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  101  		return ret;
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  102  	/* If specified, exclude empty or freeable LEBs */
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  103  	if (lprops->free + lprops->dirty == c->leb_size) {
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  104  		if (!data->pick_free)
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  105  			return ret;
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  106  	/* Exclude LEBs with too little dirty space (unless it is empty) */
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  107  	} else if (lprops->dirty < c->dead_wm)
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  108  		return ret;
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  109  	/* Finally we found space */
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  110  	data->lnum = lprops->lnum;
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  111  	return LPT_SCAN_ADD | LPT_SCAN_STOP;
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  112  }
1e51764a3c2ac0 Artem Bityutskiy 2008-07-14  113  

:::::: The code at line 86 was first introduced by commit
:::::: 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d UBIFS: add new flash file system

:::::: TO: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
:::::: CC: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

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