tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: a3ca59b9af21e68069555ffff1ad89bd2a7c40fc commit: d6815c5c43d4f9d18e557d27fd27ae8d9cfd450c [1792/2766] soc: qcom: cmd-db: Add debugfs dumping file reproduce: # apt-get install sparse # sparse version: git checkout d6815c5c43d4f9d18e557d27fd27ae8d9cfd450c make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) vim +257 drivers/soc/qcom/cmd-db.c 239 240 #ifdef CONFIG_DEBUG_FS 241 static int cmd_db_debugfs_dump(struct seq_file *seq, void *p) 242 { 243 int i, j; 244 const struct rsc_hdr *rsc; 245 const struct entry_header *ent; 246 const char *name; 247 u16 len, version; 248 u8 major, minor; 249 250 seq_puts(seq, "Command DB DUMP\n"); 251 252 for (i = 0; i < MAX_SLV_ID; i++) { 253 rsc = &cmd_db_header->header[i]; 254 if (!rsc->slv_id) 255 break; 256 258 case CMD_DB_HW_ARC: 259 name = "ARC"; 260 break; 261 case CMD_DB_HW_VRM: 262 name = "VRM"; 263 break; 264 case CMD_DB_HW_BCM: 265 name = "BCM"; 266 break; 267 default: 268 name = "Unknown"; 269 break; 270 } 271 272 version = le16_to_cpu(rsc->version); 273 major = version >> 8; 274 minor = version; 275 276 seq_printf(seq, "Slave %s (v%u.%u)\n", name, major, minor); 277 seq_puts(seq, "-------------------------\n"); 278 279 ent = rsc_to_entry_header(rsc); 280 for (j = 0; j < le16_to_cpu(rsc->cnt); j++, ent++) { 281 seq_printf(seq, "0x%08x: %*pEp", le32_to_cpu(ent->addr), 282 sizeof(ent->id), ent->id); 283 284 len = le16_to_cpu(ent->len); 285 if (len) { 286 seq_printf(seq, " [%*ph]", 287 len, rsc_offset(rsc, ent)); 288 } 289 seq_putc(seq, '\n'); 290 } 291 } 292 293 return 0; 294 } 295 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org