Hi Borislav, [auto build test ERROR on pm/linux-next] [also build test ERROR on v4.13-rc7 next-20170901] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Borislav-Petkov/ACPICA-Check-whether-ACPI-is-disabled-before-getting-a-table/20170823-041359 base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next config: arm64-defconfig (attached as .config) compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm64 All errors (new ones prefixed by >>): drivers/acpi/acpica/tbxface.c: In function 'acpi_get_table_header': >> drivers/acpi/acpica/tbxface.c:254:6: error: 'acpi_disabled' undeclared (first use in this function) if (acpi_disabled) ^~~~~~~~~~~~~ drivers/acpi/acpica/tbxface.c:254:6: note: each undeclared identifier is reported only once for each function it appears in vim +/acpi_disabled +254 drivers/acpi/acpica/tbxface.c 229 230 /******************************************************************************* 231 * 232 * FUNCTION: acpi_get_table_header 233 * 234 * PARAMETERS: signature - ACPI signature of needed table 235 * instance - Which instance (for SSDTs) 236 * out_table_header - The pointer to the table header to fill 237 * 238 * RETURN: Status and pointer to mapped table header 239 * 240 * DESCRIPTION: Finds an ACPI table header. 241 * 242 * NOTE: Caller is responsible in unmapping the header with 243 * acpi_os_unmap_memory 244 * 245 ******************************************************************************/ 246 acpi_status 247 acpi_get_table_header(char *signature, 248 u32 instance, struct acpi_table_header *out_table_header) 249 { 250 u32 i; 251 u32 j; 252 struct acpi_table_header *header; 253 > 254 if (acpi_disabled) 255 return (AE_ERROR); 256 257 /* Parameter validation */ 258 259 if (!signature || !out_table_header) { 260 return (AE_BAD_PARAMETER); 261 } 262 263 /* Walk the root table list */ 264 265 for (i = 0, j = 0; i < acpi_gbl_root_table_list.current_table_count; 266 i++) { 267 if (!ACPI_COMPARE_NAME 268 (&(acpi_gbl_root_table_list.tables[i].signature), 269 signature)) { 270 continue; 271 } 272 273 if (++j < instance) { 274 continue; 275 } 276 277 if (!acpi_gbl_root_table_list.tables[i].pointer) { 278 if ((acpi_gbl_root_table_list.tables[i].flags & 279 ACPI_TABLE_ORIGIN_MASK) == 280 ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL) { 281 header = 282 acpi_os_map_memory(acpi_gbl_root_table_list. 283 tables[i].address, 284 sizeof(struct 285 acpi_table_header)); 286 if (!header) { 287 return (AE_NO_MEMORY); 288 } 289 290 memcpy(out_table_header, header, 291 sizeof(struct acpi_table_header)); 292 acpi_os_unmap_memory(header, 293 sizeof(struct 294 acpi_table_header)); 295 } else { 296 return (AE_NOT_FOUND); 297 } 298 } else { 299 memcpy(out_table_header, 300 acpi_gbl_root_table_list.tables[i].pointer, 301 sizeof(struct acpi_table_header)); 302 } 303 return (AE_OK); 304 } 305 306 return (AE_NOT_FOUND); 307 } 308 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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