Hi Jani, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-tip/drm-tip] url: https://github.com/intel-lab-lkp/linux/commits/Jani-Nikula/drm-i915-run-kernel-doc-on-headers-as-part-of-HDRTEST/20230404-170637 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip patch link: https://lore.kernel.org/r/20230404090528.173075-1-jani.nikula%40intel.com patch subject: [PATCH] drm/i915: run kernel-doc on headers as part of HDRTEST config: i386-defconfig (https://download.01.org/0day-ci/archive/20230404/202304042026.uZBs3cC2-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/336391cc647b2fbdf0ebd2eda8a10fb4509918b7 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Jani-Nikula/drm-i915-run-kernel-doc-on-headers-as-part-of-HDRTEST/20230404-170637 git checkout 336391cc647b2fbdf0ebd2eda8a10fb4509918b7 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 olddefconfig make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304042026.uZBs3cC2-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:27: warning: Function parameter or member 'size' not described in '__guc_capture_bufstate' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:27: warning: Function parameter or member 'data' not described in '__guc_capture_bufstate' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:27: warning: Function parameter or member 'rd' not described in '__guc_capture_bufstate' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:27: warning: Function parameter or member 'wr' not described in '__guc_capture_bufstate' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:59: warning: Function parameter or member 'link' not described in '__guc_capture_parsed_output' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:59: warning: Function parameter or member 'is_partial' not described in '__guc_capture_parsed_output' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:59: warning: Function parameter or member 'eng_class' not described in '__guc_capture_parsed_output' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:59: warning: Function parameter or member 'eng_inst' not described in '__guc_capture_parsed_output' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:59: warning: Function parameter or member 'guc_id' not described in '__guc_capture_parsed_output' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:59: warning: Function parameter or member 'lrca' not described in '__guc_capture_parsed_output' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:59: warning: Function parameter or member 'reginfo' not described in '__guc_capture_parsed_output' >> drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:62: warning: wrong kernel-doc identifier on line: * struct guc_debug_capture_list_header / struct guc_debug_capture_list drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:80: warning: wrong kernel-doc identifier on line: * struct __guc_mmio_reg_descr / struct __guc_mmio_reg_descr_group drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:105: warning: wrong kernel-doc identifier on line: * struct guc_state_capture_header_t / struct guc_state_capture_t / drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:163: warning: Function parameter or member 'is_valid' not described in '__guc_capture_ads_cache' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:163: warning: Function parameter or member 'ptr' not described in '__guc_capture_ads_cache' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:163: warning: Function parameter or member 'size' not described in '__guc_capture_ads_cache' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:163: warning: Function parameter or member 'status' not described in '__guc_capture_ads_cache' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:216: warning: Function parameter or member 'ads_null_cache' not described in 'intel_guc_state_capture' drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h:216: warning: Function parameter or member 'max_mmio_per_node' not described in 'intel_guc_state_capture' -- drivers/gpu/drm/i915/i915_pmu.h:21: warning: cannot understand function prototype: 'enum i915_pmu_tracked_events ' drivers/gpu/drm/i915/i915_pmu.h:32: warning: cannot understand function prototype: 'enum ' >> drivers/gpu/drm/i915/i915_pmu.h:41: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * How many different events we track in the global PMU mask. -- >> drivers/gpu/drm/i915/i915_request.h:176: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Request queue structure. drivers/gpu/drm/i915/i915_request.h:477: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Returns true if seq1 is later than seq2. -- >> drivers/gpu/drm/i915/i915_vma.h:145: warning: expecting prototype for i915_vma_offset(). Prototype was for i915_vma_size() instead -- >> drivers/gpu/drm/i915/intel_wakeref.h:118: warning: expecting prototype for intel_wakeref_get_if_in_use(). Prototype was for intel_wakeref_get_if_active() instead vim +62 drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h 24492514ccbd57 Alan Previn 2022-03-21 14 f5718a7265a6f5 Alan Previn 2022-03-21 15 /** f5718a7265a6f5 Alan Previn 2022-03-21 16 * struct __guc_capture_bufstate f5718a7265a6f5 Alan Previn 2022-03-21 17 * f5718a7265a6f5 Alan Previn 2022-03-21 18 * Book-keeping structure used to track read and write pointers f5718a7265a6f5 Alan Previn 2022-03-21 19 * as we extract error capture data from the GuC-log-buffer's f5718a7265a6f5 Alan Previn 2022-03-21 20 * error-capture region as a stream of dwords. f5718a7265a6f5 Alan Previn 2022-03-21 21 */ f5718a7265a6f5 Alan Previn 2022-03-21 22 struct __guc_capture_bufstate { f5718a7265a6f5 Alan Previn 2022-03-21 23 u32 size; f5718a7265a6f5 Alan Previn 2022-03-21 24 void *data; f5718a7265a6f5 Alan Previn 2022-03-21 25 u32 rd; f5718a7265a6f5 Alan Previn 2022-03-21 26 u32 wr; f5718a7265a6f5 Alan Previn 2022-03-21 @27 }; f5718a7265a6f5 Alan Previn 2022-03-21 28 f5718a7265a6f5 Alan Previn 2022-03-21 29 /** f5718a7265a6f5 Alan Previn 2022-03-21 30 * struct __guc_capture_parsed_output - extracted error capture node f5718a7265a6f5 Alan Previn 2022-03-21 31 * f5718a7265a6f5 Alan Previn 2022-03-21 32 * A single unit of extracted error-capture output data grouped together f5718a7265a6f5 Alan Previn 2022-03-21 33 * at an engine-instance level. We keep these nodes in a linked list. 247f8071d58933 Alan Previn 2022-03-21 34 * See cachelist and outlist below. f5718a7265a6f5 Alan Previn 2022-03-21 35 */ f5718a7265a6f5 Alan Previn 2022-03-21 36 struct __guc_capture_parsed_output { f5718a7265a6f5 Alan Previn 2022-03-21 37 /* f5718a7265a6f5 Alan Previn 2022-03-21 38 * A single set of 3 capture lists: a global-list f5718a7265a6f5 Alan Previn 2022-03-21 39 * an engine-class-list and an engine-instance list. f5718a7265a6f5 Alan Previn 2022-03-21 40 * outlist in __guc_capture_parsed_output will keep f5718a7265a6f5 Alan Previn 2022-03-21 41 * a linked list of these nodes that will eventually f5718a7265a6f5 Alan Previn 2022-03-21 42 * be detached from outlist and attached into to f5718a7265a6f5 Alan Previn 2022-03-21 43 * i915_gpu_codedump in response to a context reset f5718a7265a6f5 Alan Previn 2022-03-21 44 */ f5718a7265a6f5 Alan Previn 2022-03-21 45 struct list_head link; f5718a7265a6f5 Alan Previn 2022-03-21 46 bool is_partial; f5718a7265a6f5 Alan Previn 2022-03-21 47 u32 eng_class; f5718a7265a6f5 Alan Previn 2022-03-21 48 u32 eng_inst; f5718a7265a6f5 Alan Previn 2022-03-21 49 u32 guc_id; f5718a7265a6f5 Alan Previn 2022-03-21 50 u32 lrca; f5718a7265a6f5 Alan Previn 2022-03-21 51 struct gcap_reg_list_info { f5718a7265a6f5 Alan Previn 2022-03-21 52 u32 vfid; f5718a7265a6f5 Alan Previn 2022-03-21 53 u32 num_regs; f5718a7265a6f5 Alan Previn 2022-03-21 54 struct guc_mmio_reg *regs; f5718a7265a6f5 Alan Previn 2022-03-21 55 } reginfo[GUC_CAPTURE_LIST_TYPE_MAX]; f5718a7265a6f5 Alan Previn 2022-03-21 56 #define GCAP_PARSED_REGLIST_INDEX_GLOBAL BIT(GUC_CAPTURE_LIST_TYPE_GLOBAL) f5718a7265a6f5 Alan Previn 2022-03-21 57 #define GCAP_PARSED_REGLIST_INDEX_ENGCLASS BIT(GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS) f5718a7265a6f5 Alan Previn 2022-03-21 58 #define GCAP_PARSED_REGLIST_INDEX_ENGINST BIT(GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE) f5718a7265a6f5 Alan Previn 2022-03-21 59 }; f5718a7265a6f5 Alan Previn 2022-03-21 60 24492514ccbd57 Alan Previn 2022-03-21 61 /** 24492514ccbd57 Alan Previn 2022-03-21 @62 * struct guc_debug_capture_list_header / struct guc_debug_capture_list 24492514ccbd57 Alan Previn 2022-03-21 63 * 24492514ccbd57 Alan Previn 2022-03-21 64 * As part of ADS registration, these header structures (followed by 24492514ccbd57 Alan Previn 2022-03-21 65 * an array of 'struct guc_mmio_reg' entries) are used to register with 24492514ccbd57 Alan Previn 2022-03-21 66 * GuC microkernel the list of registers we want it to dump out prior 24492514ccbd57 Alan Previn 2022-03-21 67 * to a engine reset. 24492514ccbd57 Alan Previn 2022-03-21 68 */ 24492514ccbd57 Alan Previn 2022-03-21 69 struct guc_debug_capture_list_header { 24492514ccbd57 Alan Previn 2022-03-21 70 u32 info; 24492514ccbd57 Alan Previn 2022-03-21 71 #define GUC_CAPTURELISTHDR_NUMDESCR GENMASK(15, 0) 24492514ccbd57 Alan Previn 2022-03-21 72 } __packed; 24492514ccbd57 Alan Previn 2022-03-21 73 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
