linux-kernel - security/landlock/ruleset.c:644: warning: Function parameter or struct member '' not described in 'landlock_init_layer

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Date: Wed, 7 Feb 2024 06:13:24 +0800
From: kernel test robot <lkp@...el.com>
To: Konstantin Meskhidze <konstantin.meskhidze@...wei.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Mickaël Salaün <mic@...ikod.net>
Subject: security/landlock/ruleset.c:644: warning: Function parameter or
 struct member '' not described in 'landlock_init_layer_masks'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   99bd3cb0d12e85d5114425353552121ec8f93adc
commit: 0e7410112964168a65578002269ae3b80b207936 landlock: Move and rename layer helpers
date:   3 months ago
config: i386-randconfig-141-20240206 (https://download.01.org/0day-ci/archive/20240207/202402070653.ovMJd41U-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/20240207/202402070653.ovMJd41U-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/202402070653.ovMJd41U-lkp@intel.com/

All warnings (new ones prefixed by >>):

   Use of uninitialized value $param in regexp compilation at scripts/kernel-doc line 1518, <IN_FILE> line 182.
   Use of uninitialized value $actual in substitution (s///) at scripts/kernel-doc line 1470, <IN_FILE> line 182.
   Use of uninitialized value $actual in substitution (s///) at scripts/kernel-doc line 1470, <IN_FILE> line 182.
   Use of uninitialized value $param in substitution (s///) at scripts/kernel-doc line 1576, <IN_FILE> line 182.
   Use of uninitialized value $param in pattern match (m//) at scripts/kernel-doc line 1605, <IN_FILE> line 182.
   Use of uninitialized value $param in hash element at scripts/kernel-doc line 1615, <IN_FILE> line 182.
   Use of uninitialized value $param in pattern match (m//) at scripts/kernel-doc line 1615, <IN_FILE> line 182.
   Use of uninitialized value $param in hash element at scripts/kernel-doc line 1616, <IN_FILE> line 182.
   Use of uninitialized value $param in pattern match (m//) at scripts/kernel-doc line 1618, <IN_FILE> line 182.
   Use of uninitialized value $param in concatenation (.) or string at scripts/kernel-doc line 1619, <IN_FILE> line 182.
   security/landlock/ruleset.c:182: warning: Function parameter or struct member '' not described in 'insert_rule'
   Use of uninitialized value $param in hash element at scripts/kernel-doc line 1634, <IN_FILE> line 182.
   Use of uninitialized value $parameterlist[2] in join or string at scripts/kernel-doc line 1793, <IN_FILE> line 182.
   security/landlock/ruleset.c:182: warning: Excess function parameter 'layers' description in 'insert_rule'
   Use of uninitialized value $param in regexp compilation at scripts/kernel-doc line 1518, <IN_FILE> line 644.
   Use of uninitialized value $actual in substitution (s///) at scripts/kernel-doc line 1470, <IN_FILE> line 644.
   Use of uninitialized value $actual in substitution (s///) at scripts/kernel-doc line 1470, <IN_FILE> line 644.
   Use of uninitialized value $param in substitution (s///) at scripts/kernel-doc line 1576, <IN_FILE> line 644.
   Use of uninitialized value $param in pattern match (m//) at scripts/kernel-doc line 1605, <IN_FILE> line 644.
   Use of uninitialized value $param in hash element at scripts/kernel-doc line 1615, <IN_FILE> line 644.
   Use of uninitialized value $param in pattern match (m//) at scripts/kernel-doc line 1615, <IN_FILE> line 644.
   Use of uninitialized value $param in hash element at scripts/kernel-doc line 1616, <IN_FILE> line 644.
   Use of uninitialized value $param in pattern match (m//) at scripts/kernel-doc line 1618, <IN_FILE> line 644.
   Use of uninitialized value $param in concatenation (.) or string at scripts/kernel-doc line 1619, <IN_FILE> line 644.
>> security/landlock/ruleset.c:644: warning: Function parameter or struct member '' not described in 'landlock_init_layer_masks'
   Use of uninitialized value $param in hash element at scripts/kernel-doc line 1634, <IN_FILE> line 644.
   Use of uninitialized value $parameterlist[2] in join or string at scripts/kernel-doc line 1793, <IN_FILE> line 644.
>> security/landlock/ruleset.c:644: warning: Excess function parameter 'layer_masks' description in 'landlock_init_layer_masks'


vim +644 security/landlock/ruleset.c

   626	
   627	/**
   628	 * landlock_init_layer_masks - Initialize layer masks from an access request
   629	 *
   630	 * Populates @layer_masks such that for each access right in @access_request,
   631	 * the bits for all the layers are set where this access right is handled.
   632	 *
   633	 * @domain: The domain that defines the current restrictions.
   634	 * @access_request: The requested access rights to check.
   635	 * @layer_masks: The layer masks to populate.
   636	 *
   637	 * Returns: An access mask where each access right bit is set which is handled
   638	 * in any of the active layers in @domain.
   639	 */
   640	access_mask_t landlock_init_layer_masks(
   641		const struct landlock_ruleset *const domain,
   642		const access_mask_t access_request,
   643		layer_mask_t (*const layer_masks)[LANDLOCK_NUM_ACCESS_FS])
 > 644	{

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