Hi Thomas, kernel test robot noticed the following build errors: [auto build test ERROR on next-20240816] [also build test ERROR on v6.11-rc3] [cannot apply to drm-xe/drm-xe-next linus/master v6.11-rc3 v6.11-rc2 v6.11-rc1] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Thomas-Hellstr-m/drm-ttm-Add-a-virtual-base-class-for-graphics-memory-backup/20240816-213947 base: next-20240816 patch link: https://lore.kernel.org/r/20240816133717.3102-4-thomas.hellstrom%40linux.intel.com patch subject: [PATCH v8 3/6] drm/ttm: Use fault-injection to test error paths config: x86_64-rhel-8.3-rust (https://download.01.org/0day-ci/archive/20240817/202408170144.N7YoWTCX-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/20240817/202408170144.N7YoWTCX-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/202408170144.N7YoWTCX-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/gpu/drm/ttm/ttm_pool.c:456:8: error: call to undeclared function 'should_fail'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 456 | should_fail(&backup_fault_inject, 1)) { | ^ >> drivers/gpu/drm/ttm/ttm_pool.c:456:21: error: use of undeclared identifier 'backup_fault_inject' 456 | should_fail(&backup_fault_inject, 1)) { | ^ drivers/gpu/drm/ttm/ttm_pool.c:908:44: error: call to undeclared function 'should_fail'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 908 | if (IS_ENABLED(CONFIG_FAULT_INJECTION) && should_fail(&backup_fault_inject, 1)) | ^ drivers/gpu/drm/ttm/ttm_pool.c:908:57: error: use of undeclared identifier 'backup_fault_inject' 908 | if (IS_ENABLED(CONFIG_FAULT_INJECTION) && should_fail(&backup_fault_inject, 1)) | ^ 4 errors generated. vim +/should_fail +456 drivers/gpu/drm/ttm/ttm_pool.c 434 435 static int ttm_pool_restore_tt(struct ttm_pool_tt_restore *restore, 436 struct ttm_backup *backup, 437 struct ttm_operation_ctx *ctx) 438 { 439 static unsigned long __maybe_unused swappedin; 440 unsigned int i, nr = 1 << restore->order; 441 int ret = 0; 442 443 if (!ttm_pool_restore_valid(restore)) 444 return 0; 445 446 for (i = restore->restored_pages; i < nr; ++i) { 447 struct page *p = restore->old_pages[i]; 448 449 if (ttm_backup_page_ptr_is_handle(p)) { 450 unsigned long handle = ttm_backup_page_ptr_to_handle(p); 451 452 if (handle == 0) 453 continue; 454 455 if (IS_ENABLED(CONFIG_FAULT_INJECTION) && ctx->interruptible && > 456 should_fail(&backup_fault_inject, 1)) { 457 ret = -EINTR; 458 break; 459 } 460 461 ret = backup->ops->copy_backed_up_page 462 (backup, restore->first_page[i], 463 handle, ctx->interruptible); 464 if (ret) 465 break; 466 467 backup->ops->drop(backup, handle); 468 } else if (p) { 469 /* 470 * We could probably avoid splitting the old page 471 * using clever logic, but ATM we don't care. 472 */ 473 ttm_pool_split_for_swap(restore->pool, p); 474 copy_highpage(restore->first_page[i], p); 475 __free_pages(p, 0); 476 } 477 478 restore->restored_pages++; 479 restore->old_pages[i] = NULL; 480 cond_resched(); 481 } 482 483 return ret; 484 } 485 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
