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Fri, 06 Oct 2023 15:57:16 +0000 Date: Fri, 6 Oct 2023 23:57:05 +0800 From: kernel test robot To: Johannes Weiner Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Borislav Petkov Subject: arch/x86/kernel/cpu/resctrl/monitor.c:38: warning: Cannot understand * @rmid_free_lru A least recently used list of free RMIDs Message-ID: <202310062356.lX3xpLP9-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Johannes, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b78b18fb8ee19f7a05f20c3abc865b3bfe182884 commit: e6d429313ea5c776d2e76b4494df69102e6b7115 x86/resctrl: Avoid confusion over the new X86_RESCTRL config date: 4 years, 8 months ago config: x86_64-randconfig-003-20230909 (https://download.01.org/0day-ci/archive/20231006/202310062356.lX3xpLP9-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/20231006/202310062356.lX3xpLP9-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202310062356.lX3xpLP9-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/x86/kernel/cpu/resctrl/monitor.c:38: warning: Cannot understand * @rmid_free_lru A least recently used list of free RMIDs on line 38 - I thought it was a doc line >> arch/x86/kernel/cpu/resctrl/monitor.c:45: warning: Cannot understand * @rmid_limbo_count count of currently unused but (potentially) on line 45 - I thought it was a doc line >> arch/x86/kernel/cpu/resctrl/monitor.c:54: warning: Cannot understand * @rmid_entry - The entry in the limbo and free lists. on line 54 - I thought it was a doc line -- >> arch/x86/kernel/cpu/resctrl/rdtgroup.c:803: warning: Function parameter or member 'of' not described in 'rdt_bit_usage_show' >> arch/x86/kernel/cpu/resctrl/rdtgroup.c:803: warning: Function parameter or member 'seq' not described in 'rdt_bit_usage_show' >> arch/x86/kernel/cpu/resctrl/rdtgroup.c:803: warning: Function parameter or member 'v' not described in 'rdt_bit_usage_show' >> arch/x86/kernel/cpu/resctrl/rdtgroup.c:1148: warning: Function parameter or member 'rdtgrp' not described in 'rdtgroup_mode_test_exclusive' >> arch/x86/kernel/cpu/resctrl/rdtgroup.c:1181: warning: Function parameter or member 'of' not described in 'rdtgroup_mode_write' >> arch/x86/kernel/cpu/resctrl/rdtgroup.c:1181: warning: Function parameter or member 'buf' not described in 'rdtgroup_mode_write' >> arch/x86/kernel/cpu/resctrl/rdtgroup.c:1181: warning: Function parameter or member 'nbytes' not described in 'rdtgroup_mode_write' >> arch/x86/kernel/cpu/resctrl/rdtgroup.c:1181: warning: Function parameter or member 'off' not described in 'rdtgroup_mode_write' >> arch/x86/kernel/cpu/resctrl/rdtgroup.c:1290: warning: Function parameter or member 'of' not described in 'rdtgroup_size_show' >> arch/x86/kernel/cpu/resctrl/rdtgroup.c:1290: warning: Function parameter or member 's' not described in 'rdtgroup_size_show' >> arch/x86/kernel/cpu/resctrl/rdtgroup.c:1290: warning: Function parameter or member 'v' not described in 'rdtgroup_size_show' arch/x86/kernel/cpu/resctrl/rdtgroup.c:2483: warning: Function parameter or member 'rdtgrp' not described in 'rdtgroup_init_alloc' vim +38 arch/x86/kernel/cpu/resctrl/monitor.c 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 36 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 37 /** 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 @38 * @rmid_free_lru A least recently used list of free RMIDs 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 39 * These RMIDs are guaranteed to have an occupancy less than the 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 40 * threshold occupancy 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 41 */ 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 42 static LIST_HEAD(rmid_free_lru); 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 43 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 44 /** 24247aeeabe99e arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-08-15 @45 * @rmid_limbo_count count of currently unused but (potentially) 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 46 * dirty RMIDs. 24247aeeabe99e arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-08-15 47 * This counts RMIDs that no one is currently using but that 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 48 * may have a occupancy value > intel_cqm_threshold. User can change 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 49 * the threshold occupancy value. 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 50 */ 5fd88b60e11b7d arch/x86/kernel/cpu/intel_rdt_monitor.c Colin Ian King 2017-10-02 51 static unsigned int rmid_limbo_count; 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 52 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 53 /** 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 @54 * @rmid_entry - The entry in the limbo and free lists. 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 55 */ 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 56 static struct rmid_entry *rmid_ptrs; 6a445edce65781 arch/x86/kernel/cpu/intel_rdt_monitor.c Vikas Shivappa 2017-07-25 57 :::::: The code at line 38 was first introduced by commit :::::: 6a445edce657810992594c7b9e679219aaf78ad9 x86/intel_rdt/cqm: Add RDT monitoring initialization :::::: TO: Vikas Shivappa :::::: CC: Thomas Gleixner -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki