tree: https://github.com/mchinth/linux  sep_socwatch_linux_5_9 head: 7296486889985b9d9895a39f551764a4b0425bea commit: 4a8adda8065c4c6944ffedd3025605c845c262a5 [32/41] SEP/SOCWATCH resolve build errors after rebasing to linux v5.6-rc3 config: x86_64-randconfig-s022-20210413 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-280-g2cd6d34e-dirty # https://github.com/mchinth/linux/commit/4a8adda8065c4c6944ffedd3025605c84... git remote add mchinth https://github.com/mchinth/linux git fetch --no-tags mchinth  sep_socwatch_linux_5_9 git checkout 4a8adda8065c4c6944ffedd3025605c845c262a5 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/platform/x86/socperf/npk_uncore.c:492:10: sparse: sparse: Initializer entry defined twice drivers/platform/x86/socperf/npk_uncore.c:496:10: sparse: also defined here -- drivers/platform/x86/socperf/haswellunc_sa.c:395:10: sparse: sparse: Initializer entry defined twice drivers/platform/x86/socperf/haswellunc_sa.c:399:10: sparse: also defined here -- drivers/platform/x86/socperf/soc_uncore.c:889:10: sparse: sparse: Initializer entry defined twice drivers/platform/x86/socperf/soc_uncore.c:893:10: sparse: also defined here vim +/__iomem +292 drivers/platform/x86/socperf/npk_uncore.c 162 163 /*! 164 * @fn static VOID uncore_Write_PMU(VOID*) 165 * 166 * @brief Initial write of PMU registers 167 * Walk through the entries and write the value of the register accordingly. 168 * When current_group = 0, then this is the first time this routine is called, 169 * 170 * @param param - device index 171 * 172 * @return None 173 * 174 * <I>Special Notes:</I> 175 */ 176 static VOID uncore_Write_PMU(VOID *param) 177 { 178 U32 dev_idx = *((U32 *)param); 179 ECB pecb; 180 DRV_PCI_DEVICE_ENTRY dpden; 181 U32 pci_address; 182 U32 bar_lo; 183 U64 bar_hi; 184 U64 final_bar; 185 U64 physical_address; 186 U32 dev_index = 0; 187 S32 bar_list[SOC_NPK_UNCORE_MAX_PCI_DEVICES]; 188 U32 bar_index = 0; 189 U64 virtual_address = 0; 190 U32 bar_name = 0; 191 DRV_PCI_DEVICE_ENTRY curr_pci_entry = NULL; 192 U32 next_bar_offset = 0; 193 U64 mmio_offset = 0; 194 U32 i = 0; 195 U32 map_size = 0; 196 U32 cur_grp; 197 198 if (device_uncore == NULL) { 199 SOCPERF_PRINT_ERROR("ERROR: NULL device_uncore!\n"); 200 return; 201 } 202 cur_grp = LWPMU_DEVICE_cur_group(device_uncore); 203 204 pecb = (ECB)LWPMU_DEVICE_PMU_register_data(device_uncore)[cur_grp]; 205 if (pecb == NULL) { 206 SOCPERF_PRINT_ERROR("ERROR: null pecb!\n"); 207 return; 208 } 209 210 for (dev_index = 0; dev_index < SOC_NPK_UNCORE_MAX_PCI_DEVICES; 211 dev_index++) { 212 bar_list[dev_index] = -1; 213 } 214 215 // initialize the per-counter overflow numbers 216 for (i = 0; i < SOC_NPK_COUNTER_MAX_COUNTERS; i++) { 217 counter_overflow[i] = 0; 218 socperf_pcb[0].last_uncore_count[i] = 0; 219 } 220 221 ECB_pcidev_entry_list(pecb) = (DRV_PCI_DEVICE_ENTRY)( 222 (S8 *)pecb + ECB_pcidev_list_offset(pecb)); 223 dpden = ECB_pcidev_entry_list(pecb); 224 225 uncore_Reset_Counters(dev_idx); 226 227 SOCPERF_PRINT_DEBUG( 228 "Inside VISA Driver Write PMU: Number of entries=%d\n", 229 ECB_num_pci_devices(pecb)); 230 for (dev_index = 0; dev_index < ECB_num_pci_devices(pecb); 231 dev_index++) { 232 curr_pci_entry = &dpden[dev_index]; 233 bar_name = DRV_PCI_DEVICE_ENTRY_bar_name(curr_pci_entry); 234 mmio_offset = DRV_PCI_DEVICE_ENTRY_base_offset_for_mmio( 235 curr_pci_entry); 236 237 // UNC_MMIO programming 238 if (bar_list[bar_name] != -1) { 239 bar_index = bar_list[bar_name]; 240 virtual_address = DRV_PCI_DEVICE_ENTRY_virtual_address( 241 &dpden[bar_index]); 242 DRV_PCI_DEVICE_ENTRY_virtual_address(curr_pci_entry) = 243 DRV_PCI_DEVICE_ENTRY_virtual_address( 244 &dpden[bar_index]); 245 write_To_Register(virtual_address, mmio_offset, 246 (U32)DRV_PCI_DEVICE_ENTRY_value( 247 curr_pci_entry)); 248 continue; 249 } 250 251 pci_address = FORM_PCI_ADDR( 252 DRV_PCI_DEVICE_ENTRY_bus_no(curr_pci_entry), 253 DRV_PCI_DEVICE_ENTRY_dev_no(curr_pci_entry), 254 DRV_PCI_DEVICE_ENTRY_func_no(curr_pci_entry), 255 DRV_PCI_DEVICE_ENTRY_bar_offset(curr_pci_entry)); 256 bar_lo = SOCPERF_PCI_Read_Ulong(pci_address); 257 SOCPERF_PRINT_DEBUG( 258 "The bus=%x device=%x function=%x offset=%x\n", 259 DRV_PCI_DEVICE_ENTRY_bus_no(curr_pci_entry), 260 DRV_PCI_DEVICE_ENTRY_dev_no(curr_pci_entry), 261 DRV_PCI_DEVICE_ENTRY_func_no(curr_pci_entry), 262 DRV_PCI_DEVICE_ENTRY_bar_offset(curr_pci_entry)); 263 next_bar_offset = 264 DRV_PCI_DEVICE_ENTRY_bar_offset(curr_pci_entry) + 265 SOC_NPK_UNCORE_NEXT_ADDR_OFFSET; 266 pci_address = FORM_PCI_ADDR( 267 DRV_PCI_DEVICE_ENTRY_bus_no(curr_pci_entry), 268 DRV_PCI_DEVICE_ENTRY_dev_no(curr_pci_entry), 269 DRV_PCI_DEVICE_ENTRY_func_no(curr_pci_entry), 270 next_bar_offset); 271 bar_hi = SOCPERF_PCI_Read_Ulong(pci_address); 272 SOCPERF_PRINT_DEBUG( 273 "The bus=%x device=%x function=%x offset=%x\n", 274 DRV_PCI_DEVICE_ENTRY_bus_no(curr_pci_entry), 275 DRV_PCI_DEVICE_ENTRY_dev_no(curr_pci_entry), 276 DRV_PCI_DEVICE_ENTRY_func_no(curr_pci_entry), 277 next_bar_offset); 278 final_bar = (bar_hi << SOC_NPK_UNCORE_BAR_ADDR_SHIFT) | bar_lo; 279 if (bar_name == UNC_MCHBAR) { 280 final_bar &= SOC_NPK_UNCORE_MCHBAR_ADDR_MASK; 281 map_size = SOC_NPK_UNCORE_MCHBAR_MMIO_PAGE_SIZE; 282 } else { 283 final_bar &= SOC_NPK_UNCORE_BAR_ADDR_MASK; 284 map_size = SOC_NPK_UNCORE_NPK_BAR_MMIO_PAGE_SIZE; 285 } 286 DRV_PCI_DEVICE_ENTRY_bar_address(curr_pci_entry) = final_bar; 287 physical_address = 288 DRV_PCI_DEVICE_ENTRY_bar_address(curr_pci_entry); 289 290 if (physical_address) { 291 DRV_PCI_DEVICE_ENTRY_virtual_address(curr_pci_entry) = 293 map_size); 294 virtual_address = DRV_PCI_DEVICE_ENTRY_virtual_address( 295 curr_pci_entry); 296 297 if (virtual_address) { 298 write_To_Register(virtual_address, mmio_offset, 299 (U32)DRV_PCI_DEVICE_ENTRY_value( 300 curr_pci_entry)); 301 bar_list[bar_name] = dev_index; 302 if (counter_virtual_address == 0) { 303 counter_virtual_address = virtual_address; 304 } 305 if (mchbar_virtual_address == 0 && 306 bar_name == UNC_MCHBAR) { 307 mchbar_virtual_address = virtual_address; 308 mchbar_offset = mmio_offset; 309 } 310 } 311 } 312 } 313 } 314 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org