tree: https://github.com/projectacrn/acrn-kernel acrn_6.1.80 head: 2355d104a177c9f9bd98729076fe20f1bf0d03f3 commit: f528146c92c545c17a21206b87e70c7087247f88 [31/32] virt: acrn: add acrn hypervisor log back config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20240608/202406081513.h0su7fOy-lkp@xxxxxxxxx/config) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240608/202406081513.h0su7fOy-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202406081513.h0su7fOy-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/virt/acrn/hvlog.c:226: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * base0 = hvlog_buf_phyaddr_base; vim +226 drivers/virt/acrn/hvlog.c 224 225 /** > 226 * base0 = hvlog_buf_phyaddr_base; 227 * base1 = hvlog_buf_phyaddr_base + (hvlog_buf_size >> 1) 228 * if there is valid data in base0, cur_logbuf = base1, last_logbuf = base0. 229 * if there is valid data in base1, cur_logbuf = base0, last_logbuf = base1. 230 * if there is no valid data both in base0 and base1, cur_logbuf = base0, 231 * last_logbuf = 0. 232 */ 233 static void assign_hvlog_buf_base(uint64_t *cur_logbuf, uint64_t *last_logbuf) 234 { 235 uint64_t base0, base1, offset; 236 uint32_t ele_num, size; 237 uint16_t pcpu_id; 238 void *sbuf; 239 240 base0 = hvlog_buf_phyaddr_base; 241 base1 = hvlog_buf_phyaddr_base + (hvlog_buf_size >> 1); 242 size = (hvlog_buf_size >> 1) / pcpu_nr; 243 ele_num = (size - SBUF_HEAD_SIZE) / LOG_ENTRY_SIZE; 244 245 foreach_cpu(pcpu_id, pcpu_nr) { 246 offset = (base0 + (size * pcpu_id)) - hvlog_buf_phyaddr_base; 247 sbuf = hvlog_buf_virtaddr_base + offset; 248 if (sbuf_check_valid(ele_num, LOG_ENTRY_SIZE, sbuf)) { 249 *last_logbuf = base0; 250 *cur_logbuf = base1; 251 return; 252 } 253 } 254 255 foreach_cpu(pcpu_id, pcpu_nr) { 256 offset = (base1 + (size * pcpu_id)) - hvlog_buf_phyaddr_base; 257 sbuf = hvlog_buf_virtaddr_base + offset; 258 if (sbuf_check_valid(ele_num, LOG_ENTRY_SIZE, sbuf)) { 259 *last_logbuf = base1; 260 *cur_logbuf = base0; 261 return; 262 } 263 } 264 265 /* No last logbuf found */ 266 *last_logbuf = 0; 267 *cur_logbuf = base0; 268 } 269 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
