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Date:   Sat, 7 Oct 2023 05:03:20 +0800
From:   kernel test robot <lkp@intel.com>
To:     James Morse <james.morse@arm.com>
Cc:     oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
        Borislav Petkov <bp@suse.de>, Jamie Iles <jamie@nuviainc.com>,
        Reinette Chatre <reinette.chatre@intel.com>
Subject: arch/x86/kernel/cpu/resctrl/rdtgroup.c:1196: warning: Function
 parameter or member 'type' not described in '__rdtgroup_cbm_overlaps'
Message-ID: <202310070434.mD8eRNAz-lkp@intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Precedence: bulk

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   af95dc6fdc25e616051d0234aad638e15c02ec8f
commit: fa8f711d2f14381d1a47420b6da94b62e6484c56 x86/resctrl: Pass configuration type to resctrl_arch_get_config()
date:   2 years, 2 months ago
config: x86_64-randconfig-003-20230909 (https://download.01.org/0day-ci/archive/20231007/202310070434.mD8eRNAz-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231007/202310070434.mD8eRNAz-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/202310070434.mD8eRNAz-lkp@intel.com/

All warnings (new ones prefixed by >>):

   arch/x86/kernel/cpu/resctrl/rdtgroup.c:900: warning: Function parameter or member 'of' not described in 'rdt_bit_usage_show'
   arch/x86/kernel/cpu/resctrl/rdtgroup.c:900: warning: Function parameter or member 'seq' not described in 'rdt_bit_usage_show'
   arch/x86/kernel/cpu/resctrl/rdtgroup.c:900: warning: Function parameter or member 'v' not described in 'rdt_bit_usage_show'
>> arch/x86/kernel/cpu/resctrl/rdtgroup.c:1196: warning: Function parameter or member 'type' not described in '__rdtgroup_cbm_overlaps'
   arch/x86/kernel/cpu/resctrl/rdtgroup.c:1279: warning: Function parameter or member 'rdtgrp' not described in 'rdtgroup_mode_test_exclusive'
   arch/x86/kernel/cpu/resctrl/rdtgroup.c:1315: warning: Function parameter or member 'of' not described in 'rdtgroup_mode_write'
   arch/x86/kernel/cpu/resctrl/rdtgroup.c:1315: warning: Function parameter or member 'buf' not described in 'rdtgroup_mode_write'
   arch/x86/kernel/cpu/resctrl/rdtgroup.c:1315: warning: Function parameter or member 'nbytes' not described in 'rdtgroup_mode_write'
   arch/x86/kernel/cpu/resctrl/rdtgroup.c:1315: warning: Function parameter or member 'off' not described in 'rdtgroup_mode_write'
   arch/x86/kernel/cpu/resctrl/rdtgroup.c:1424: warning: Function parameter or member 'of' not described in 'rdtgroup_size_show'
   arch/x86/kernel/cpu/resctrl/rdtgroup.c:1424: warning: Function parameter or member 's' not described in 'rdtgroup_size_show'
   arch/x86/kernel/cpu/resctrl/rdtgroup.c:1424: warning: Function parameter or member 'v' not described in 'rdtgroup_size_show'


vim +1196 arch/x86/kernel/cpu/resctrl/rdtgroup.c

521348b011d64c arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-10-03  1172  
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1173  /**
e5f3530c391105 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-10-03  1174   * __rdtgroup_cbm_overlaps - Does CBM for intended closid overlap with other
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1175   * @r: Resource to which domain instance @d belongs.
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1176   * @d: The domain instance for which @closid is being tested.
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1177   * @cbm: Capacity bitmask being tested.
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1178   * @closid: Intended closid for @cbm.
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1179   * @exclusive: Only check if overlaps with exclusive resource groups
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1180   *
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1181   * Checks if provided @cbm intended to be used for @closid on domain
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1182   * @d overlaps with any other closids or other hardware usage associated
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1183   * with this domain. If @exclusive is true then only overlaps with
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1184   * resource groups in exclusive mode will be considered. If @exclusive
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1185   * is false then overlaps with any resource group or hardware entities
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1186   * will be considered.
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1187   *
49e00eee00612b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-10-04  1188   * @cbm is unsigned long, even if only 32 bits are used, to make the
49e00eee00612b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-10-04  1189   * bitmap functions work correctly.
49e00eee00612b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-10-04  1190   *
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1191   * Return: false if CBM does not overlap, true if it does.
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1192   */
e5f3530c391105 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-10-03  1193  static bool __rdtgroup_cbm_overlaps(struct rdt_resource *r, struct rdt_domain *d,
fa8f711d2f1438 arch/x86/kernel/cpu/resctrl/rdtgroup.c   James Morse     2021-07-28  1194  				    unsigned long cbm, int closid,
fa8f711d2f1438 arch/x86/kernel/cpu/resctrl/rdtgroup.c   James Morse     2021-07-28  1195  				    enum resctrl_conf_type type, bool exclusive)
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22 @1196  {
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1197  	enum rdtgrp_mode mode;
49e00eee00612b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-10-04  1198  	unsigned long ctrl_b;
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1199  	int i;
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1200  
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1201  	/* Check for any overlap with regions used by hardware directly */
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1202  	if (!exclusive) {
49e00eee00612b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-10-04  1203  		ctrl_b = r->cache.shareable_bits;
49e00eee00612b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-10-04  1204  		if (bitmap_intersects(&cbm, &ctrl_b, r->cache.cbm_len))
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1205  			return true;
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1206  	}
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1207  
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1208  	/* Check for overlap with other resource groups */
f07e9d0250577a arch/x86/kernel/cpu/resctrl/rdtgroup.c   James Morse     2021-07-28  1209  	for (i = 0; i < closids_supported(); i++) {
fa8f711d2f1438 arch/x86/kernel/cpu/resctrl/rdtgroup.c   James Morse     2021-07-28  1210  		resctrl_arch_get_config(r, d, i, type, (u32 *)&ctrl_b);
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1211  		mode = rdtgroup_mode_by_closid(i);
dfe9674b04ff6b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1212  		if (closid_allocated(i) && i != closid &&
dfe9674b04ff6b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1213  		    mode != RDT_MODE_PSEUDO_LOCKSETUP) {
49e00eee00612b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-10-04  1214  			if (bitmap_intersects(&cbm, &ctrl_b, r->cache.cbm_len)) {
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1215  				if (exclusive) {
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1216  					if (mode == RDT_MODE_EXCLUSIVE)
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1217  						return true;
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1218  					continue;
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1219  				}
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1220  				return true;
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1221  			}
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1222  		}
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1223  	}
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1224  
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1225  	return false;
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1226  }
49f7b4efa1101b arch/x86/kernel/cpu/intel_rdt_rdtgroup.c Reinette Chatre 2018-06-22  1227  

:::::: The code at line 1196 was first introduced by commit
:::::: 49f7b4efa1101bbc143a960eff3a9c8f9d6f7358 x86/intel_rdt: Enable setting of exclusive mode

:::::: TO: Reinette Chatre <reinette.chatre@intel.com>
:::::: CC: Thomas Gleixner <tglx@linutronix.de>

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