tree: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next head: 7e946849977d59d3e6c0b3112da6a36757051bc7 commit: fef98671194be005853cbbf51b164a3927589b64 [18/21] ACPI: PM: s2idle: Move x86-specific code to the x86 directory config: i386-randconfig-s001-20201221 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-184-g1b896707-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?id=fef98671194be005853cbbf51b164a3927589b64 git remote add pm https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git git fetch --no-tags pm linux-next git checkout fef98671194be005853cbbf51b164a3927589b64 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> "sparse warnings: (new ones prefixed by >>)" >> drivers/acpi/x86/s2idle.c:395:13: sparse: sparse: restricted suspend_state_t degrades to integer drivers/acpi/x86/s2idle.c:395:33: sparse: sparse: restricted suspend_state_t degrades to integer vim +395 drivers/acpi/x86/s2idle.c 348 349 static int lps0_device_attach(struct acpi_device *adev, 350 const struct acpi_device_id *not_used) 351 { 352 union acpi_object *out_obj; 353 354 if (lps0_device_handle) 355 return 0; 356 357 if (!(acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0)) 358 return 0; 359 360 if (acpi_s2idle_vendor_amd()) { 361 guid_parse(ACPI_LPS0_DSM_UUID_AMD, &lps0_dsm_guid); 362 out_obj = acpi_evaluate_dsm(adev->handle, &lps0_dsm_guid, 0, 0, NULL); 363 rev_id = 0; 364 } else { 365 guid_parse(ACPI_LPS0_DSM_UUID, &lps0_dsm_guid); 366 out_obj = acpi_evaluate_dsm(adev->handle, &lps0_dsm_guid, 1, 0, NULL); 367 rev_id = 1; 368 } 369 370 /* Check if the _DSM is present and as expected. */ 371 if (!out_obj || out_obj->type != ACPI_TYPE_BUFFER) { 372 acpi_handle_debug(adev->handle, 373 "_DSM function 0 evaluation failed\n"); 374 return 0; 375 } 376 377 lps0_dsm_func_mask = *(char *)out_obj->buffer.pointer; 378 379 ACPI_FREE(out_obj); 380 381 acpi_handle_debug(adev->handle, "_DSM function mask: 0x%x\n", 382 lps0_dsm_func_mask); 383 384 lps0_device_handle = adev->handle; 385 386 if (acpi_s2idle_vendor_amd()) 387 lpi_device_get_constraints_amd(); 388 else 389 lpi_device_get_constraints(); 390 391 /* 392 * Use suspend-to-idle by default if the default suspend mode was not 393 * set from the command line. 394 */ > 395 if (mem_sleep_default > PM_SUSPEND_MEM && !acpi_sleep_default_s3) 396 mem_sleep_current = PM_SUSPEND_TO_IDLE; 397 398 /* 399 * Some LPS0 systems, like ASUS Zenbook UX430UNR/i7-8550U, require the 400 * EC GPE to be enabled while suspended for certain wakeup devices to 401 * work, so mark it as wakeup-capable. 402 */ 403 acpi_ec_mark_gpe_for_wake(); 404 405 return 0; 406 } 407 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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