Hi Matthew, Thank you for the patch! Yet something to improve: [auto build test ERROR on drm-tip/drm-tip] [cannot apply to drm-intel/for-linux-next drm/drm-next v5.17-rc1 next-20220125] [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] url: https://github.com/0day-ci/linux/commits/Matthew-Auld/Initial-support-for-small-BAR-recovery/20220126-232640 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: i386-randconfig-a002-20220124 (https://download.01.org/0day-ci/archive/20220127/202201270314.tWKIUNdM-lkp@xxxxxxxxx/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/33b0a9f1f9810bd16cef89ce1e5787751583661e git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Matthew-Auld/Initial-support-for-small-BAR-recovery/20220126-232640 git checkout 33b0a9f1f9810bd16cef89ce1e5787751583661e # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/i915/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c: In function 'i915_gem_do_execbuffer': >> drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c:3426:6: error: void value not ignored as it ought to be 3426 | err = eb_capture_stage(&eb); | ^ vim +3426 drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c 3381 3382 if (args->flags & I915_EXEC_FENCE_OUT) { 3383 out_fence_fd = get_unused_fd_flags(O_CLOEXEC); 3384 if (out_fence_fd < 0) { 3385 err = out_fence_fd; 3386 goto err_in_fence; 3387 } 3388 } 3389 3390 err = eb_create(&eb); 3391 if (err) 3392 goto err_out_fence; 3393 3394 GEM_BUG_ON(!eb.lut_size); 3395 3396 err = eb_select_context(&eb); 3397 if (unlikely(err)) 3398 goto err_destroy; 3399 3400 err = eb_select_engine(&eb); 3401 if (unlikely(err)) 3402 goto err_context; 3403 3404 err = eb_lookup_vmas(&eb); 3405 if (err) { 3406 eb_release_vmas(&eb, true); 3407 goto err_engine; 3408 } 3409 3410 i915_gem_ww_ctx_init(&eb.ww, true); 3411 3412 err = eb_relocate_parse(&eb); 3413 if (err) { 3414 /* 3415 * If the user expects the execobject.offset and 3416 * reloc.presumed_offset to be an exact match, 3417 * as for using NO_RELOC, then we cannot update 3418 * the execobject.offset until we have completed 3419 * relocation. 3420 */ 3421 args->flags &= ~__EXEC_HAS_RELOC; 3422 goto err_vma; 3423 } 3424 3425 ww_acquire_done(&eb.ww.ctx); > 3426 err = eb_capture_stage(&eb); 3427 if (err) 3428 goto err_vma; 3429 3430 out_fence = eb_requests_create(&eb, in_fence, out_fence_fd); 3431 if (IS_ERR(out_fence)) { 3432 err = PTR_ERR(out_fence); 3433 out_fence = NULL; 3434 if (eb.requests[0]) 3435 goto err_request; 3436 else 3437 goto err_vma; 3438 } 3439 3440 err = eb_submit(&eb); 3441 3442 err_request: 3443 eb_requests_get(&eb); 3444 err = eb_requests_add(&eb, err); 3445 3446 if (eb.fences) 3447 signal_fence_array(&eb, eb.composite_fence ? 3448 eb.composite_fence : 3449 &eb.requests[0]->fence); 3450 3451 if (out_fence) { 3452 if (err == 0) { 3453 fd_install(out_fence_fd, out_fence->file); 3454 args->rsvd2 &= GENMASK_ULL(31, 0); /* keep in-fence */ 3455 args->rsvd2 |= (u64)out_fence_fd << 32; 3456 out_fence_fd = -1; 3457 } else { 3458 fput(out_fence->file); 3459 } 3460 } 3461 3462 if (unlikely(eb.gem_context->syncobj)) { 3463 drm_syncobj_replace_fence(eb.gem_context->syncobj, 3464 eb.composite_fence ? 3465 eb.composite_fence : 3466 &eb.requests[0]->fence); 3467 } 3468 3469 if (!out_fence && eb.composite_fence) 3470 dma_fence_put(eb.composite_fence); 3471 3472 eb_requests_put(&eb); 3473 3474 err_vma: 3475 eb_release_vmas(&eb, true); 3476 WARN_ON(err == -EDEADLK); 3477 i915_gem_ww_ctx_fini(&eb.ww); 3478 3479 if (eb.batch_pool) 3480 intel_gt_buffer_pool_put(eb.batch_pool); 3481 err_engine: 3482 eb_put_engine(&eb); 3483 err_context: 3484 i915_gem_context_put(eb.gem_context); 3485 err_destroy: 3486 eb_destroy(&eb); 3487 err_out_fence: 3488 if (out_fence_fd != -1) 3489 put_unused_fd(out_fence_fd); 3490 err_in_fence: 3491 dma_fence_put(in_fence); 3492 err_ext: 3493 put_fence_array(eb.fences, eb.num_fences); 3494 return err; 3495 } 3496 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx