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charset=us-ascii Content-Disposition: inline Hi Alexander, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 0bc21e701a6ffacfdde7f04f87d664d82e8a13bf commit: 615c164da0eb42cbfb1688cb429cc4d5039db5d8 intel_th: msu: Introduce buffer interface date: 5 years ago config: parisc-randconfig-r016-20230411 (https://download.01.org/0day-ci/archive/20250104/202501040214.DyemqWbj-lkp@intel.com/config) compiler: hppa-linux-gcc (GCC) 12.4.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250104/202501040214.DyemqWbj-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/202501040214.DyemqWbj-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/hwtracing/intel_th/msu.c:77: warning: Function parameter or struct member 'msc' not described in 'msc_window' drivers/hwtracing/intel_th/msu.c:122: warning: bad line: drivers/hwtracing/intel_th/msu.c:162: warning: Function parameter or struct member 'msu_base' not described in 'msc' >> drivers/hwtracing/intel_th/msu.c:162: warning: Function parameter or struct member 'mbuf_priv' not described in 'msc' >> drivers/hwtracing/intel_th/msu.c:162: warning: Function parameter or struct member 'work' not described in 'msc' drivers/hwtracing/intel_th/msu.c:162: warning: Function parameter or struct member 'iter_list' not described in 'msc' drivers/hwtracing/intel_th/msu.c:162: warning: Function parameter or struct member 'do_irq' not described in 'msc' drivers/hwtracing/intel_th/msu.c:1276: warning: Function parameter or struct member 'nr_pages' not described in 'msc_buffer_alloc' drivers/hwtracing/intel_th/msu.c:1276: warning: Function parameter or struct member 'nr_wins' not described in 'msc_buffer_alloc' drivers/hwtracing/intel_th/msu.c:1276: warning: Excess function parameter 'size' description in 'msc_buffer_alloc' vim +162 drivers/hwtracing/intel_th/msu.c ba82664c134ef7 Alexander Shishkin 2015-09-22 104 ba82664c134ef7 Alexander Shishkin 2015-09-22 105 /** ba82664c134ef7 Alexander Shishkin 2015-09-22 106 * struct msc - MSC device representation ba82664c134ef7 Alexander Shishkin 2015-09-22 107 * @reg_base: register window base address ba82664c134ef7 Alexander Shishkin 2015-09-22 108 * @thdev: intel_th_device pointer 615c164da0eb42 Alexander Shishkin 2019-07-05 109 * @mbuf: MSU buffer, if assigned 615c164da0eb42 Alexander Shishkin 2019-07-05 110 * @mbuf_priv MSU buffer's private data, if @mbuf ba82664c134ef7 Alexander Shishkin 2015-09-22 111 * @win_list: list of windows in multiblock mode 4e0eaf239fb33e Alexander Shishkin 2019-05-03 112 * @single_sgt: single mode buffer aad14ad3cf3a63 Alexander Shishkin 2019-05-03 113 * @cur_win: current window ba82664c134ef7 Alexander Shishkin 2015-09-22 114 * @nr_pages: total number of pages allocated for this buffer ba82664c134ef7 Alexander Shishkin 2015-09-22 115 * @single_sz: amount of data in single mode ba82664c134ef7 Alexander Shishkin 2015-09-22 116 * @single_wrap: single mode wrap occurred ba82664c134ef7 Alexander Shishkin 2015-09-22 117 * @base: buffer's base pointer ba82664c134ef7 Alexander Shishkin 2015-09-22 118 * @base_addr: buffer's base address ba82664c134ef7 Alexander Shishkin 2015-09-22 119 * @user_count: number of users of the buffer ba82664c134ef7 Alexander Shishkin 2015-09-22 120 * @mmap_count: number of mappings ba82664c134ef7 Alexander Shishkin 2015-09-22 121 * @buf_mutex: mutex to serialize access to buffer-related bits ba82664c134ef7 Alexander Shishkin 2015-09-22 122 ba82664c134ef7 Alexander Shishkin 2015-09-22 123 * @enabled: MSC is enabled ba82664c134ef7 Alexander Shishkin 2015-09-22 124 * @wrap: wrapping is enabled ba82664c134ef7 Alexander Shishkin 2015-09-22 125 * @mode: MSC operating mode ba82664c134ef7 Alexander Shishkin 2015-09-22 126 * @burst_len: write burst length ba82664c134ef7 Alexander Shishkin 2015-09-22 127 * @index: number of this MSC in the MSU ba82664c134ef7 Alexander Shishkin 2015-09-22 128 */ ba82664c134ef7 Alexander Shishkin 2015-09-22 129 struct msc { ba82664c134ef7 Alexander Shishkin 2015-09-22 130 void __iomem *reg_base; aac8da65174a35 Alexander Shishkin 2019-05-03 131 void __iomem *msu_base; ba82664c134ef7 Alexander Shishkin 2015-09-22 132 struct intel_th_device *thdev; ba82664c134ef7 Alexander Shishkin 2015-09-22 133 615c164da0eb42 Alexander Shishkin 2019-07-05 134 const struct msu_buffer *mbuf; 615c164da0eb42 Alexander Shishkin 2019-07-05 135 void *mbuf_priv; 615c164da0eb42 Alexander Shishkin 2019-07-05 136 615c164da0eb42 Alexander Shishkin 2019-07-05 137 struct work_struct work; ba82664c134ef7 Alexander Shishkin 2015-09-22 138 struct list_head win_list; 4e0eaf239fb33e Alexander Shishkin 2019-05-03 139 struct sg_table single_sgt; aad14ad3cf3a63 Alexander Shishkin 2019-05-03 140 struct msc_window *cur_win; ba82664c134ef7 Alexander Shishkin 2015-09-22 141 unsigned long nr_pages; ba82664c134ef7 Alexander Shishkin 2015-09-22 142 unsigned long single_sz; ba82664c134ef7 Alexander Shishkin 2015-09-22 143 unsigned int single_wrap : 1; ba82664c134ef7 Alexander Shishkin 2015-09-22 144 void *base; ba82664c134ef7 Alexander Shishkin 2015-09-22 145 dma_addr_t base_addr; ba82664c134ef7 Alexander Shishkin 2015-09-22 146 ba82664c134ef7 Alexander Shishkin 2015-09-22 147 /* <0: no buffer, 0: no users, >0: active users */ ba82664c134ef7 Alexander Shishkin 2015-09-22 148 atomic_t user_count; ba82664c134ef7 Alexander Shishkin 2015-09-22 149 ba82664c134ef7 Alexander Shishkin 2015-09-22 150 atomic_t mmap_count; ba82664c134ef7 Alexander Shishkin 2015-09-22 151 struct mutex buf_mutex; ba82664c134ef7 Alexander Shishkin 2015-09-22 152 ba82664c134ef7 Alexander Shishkin 2015-09-22 153 struct list_head iter_list; ba82664c134ef7 Alexander Shishkin 2015-09-22 154 ba82664c134ef7 Alexander Shishkin 2015-09-22 155 /* config */ ba82664c134ef7 Alexander Shishkin 2015-09-22 156 unsigned int enabled : 1, aac8da65174a35 Alexander Shishkin 2019-05-03 157 wrap : 1, aac8da65174a35 Alexander Shishkin 2019-05-03 158 do_irq : 1; ba82664c134ef7 Alexander Shishkin 2015-09-22 159 unsigned int mode; ba82664c134ef7 Alexander Shishkin 2015-09-22 160 unsigned int burst_len; ba82664c134ef7 Alexander Shishkin 2015-09-22 161 unsigned int index; ba82664c134ef7 Alexander Shishkin 2015-09-22 @162 }; ba82664c134ef7 Alexander Shishkin 2015-09-22 163 :::::: The code at line 162 was first introduced by commit :::::: ba82664c134ef7ab97808f09a3c5e894b0a4900d intel_th: Add Memory Storage Unit driver :::::: TO: Alexander Shishkin :::::: CC: Greg Kroah-Hartman -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki