Hi Daniel,
I love your patch! Perhaps something to improve:
[auto build test WARNING on drm-tip/drm-tip] [cannot apply to drm-intel/for-linux-next drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next drm/drm-next v5.14-rc3 next-20210730] [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/Daniel-Vetter/remove-rcu-support-fr... base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: i386-randconfig-s002-20210802 (attached as .config) compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-341-g8af24329-dirty # https://github.com/0day-ci/linux/commit/4a70c02a8b49ee9845e8222c55b4bf932e84... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Daniel-Vetter/remove-rcu-support-from-i915_address_space/20210802-234929 git checkout 4a70c02a8b49ee9845e8222c55b4bf932e843224 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot lkp@intel.com
sparse warnings: (new ones prefixed by >>) drivers/gpu/drm/i915/gem/i915_gem_context.c: note: in included file (through drivers/gpu/drm/i915/gt/intel_gt_requests.h, drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c): /usr/lib/gcc/x86_64-linux-gnu/10/include/stddef.h:406:9: sparse: sparse: preprocessor token offsetof redefined drivers/gpu/drm/i915/gem/i915_gem_context.c: note: in included file (through include/uapi/linux/posix_types.h, include/uapi/linux/types.h, include/linux/types.h, ...): include/linux/stddef.h:17:9: sparse: this was the original definition drivers/gpu/drm/i915/gem/i915_gem_context.c: note: in included file:
drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c:698:33: sparse: sparse: incompatible types in comparison expression (different address spaces): drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c:698:33: sparse: struct i915_address_space [noderef] __rcu * drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c:698:33: sparse: struct i915_address_space *
vim +698 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
f2085c8e950d53 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 631 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 632 static int igt_ctx_exec(void *arg) 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 633 { 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 634 struct drm_i915_private *i915 = arg; e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 635 struct intel_engine_cs *engine; 6e1281412ab9e6 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-11-14 636 int err = -ENODEV; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 637 0fdbe58c4a0f8c drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2018-07-06 638 /* 0fdbe58c4a0f8c drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2018-07-06 639 * Create a few different contexts (with different mm) and write 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 640 * through each ctx/mm using the GPU making sure those writes end 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 641 * up in the expected pages of our obj. 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 642 */ 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 643 0fdbe58c4a0f8c drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2018-07-06 644 if (!DRIVER_CAPS(i915)->has_logical_contexts) 0fdbe58c4a0f8c drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2018-07-06 645 return 0; 0fdbe58c4a0f8c drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2018-07-06 646 51757cf4d7e6e1 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Tvrtko Ursulin 2019-10-22 647 for_each_uabi_engine(engine, i915) { e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 648 struct drm_i915_gem_object *obj = NULL; e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 649 unsigned long ncontexts, ndwords, dw; f2085c8e950d53 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 650 struct i915_request *tq[5] = {}; e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 651 struct igt_live_test t; e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 652 IGT_TIMEOUT(end_time); e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 653 LIST_HEAD(objects); a8c9a7f52ec5a4 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-11-07 654 struct file *file; e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 655 e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 656 if (!intel_engine_can_store_dword(engine)) e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 657 continue; e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 658 e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 659 if (!engine->context_size) e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 660 continue; /* No logical context support in HW */ e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 661 ef47a0e0f49d53 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-03-13 662 file = mock_file(i915); ef47a0e0f49d53 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-03-13 663 if (IS_ERR(file)) ef47a0e0f49d53 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-03-13 664 return PTR_ERR(file); ef47a0e0f49d53 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-03-13 665 e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 666 err = igt_live_test_begin(&t, i915, __func__, engine->name); 8dd0f8d37eaec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2018-10-12 667 if (err) a4e7ccdac38ec8 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-10-04 668 goto out_file; 8dd0f8d37eaec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2018-10-12 669 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 670 ncontexts = 0; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 671 ndwords = 0; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 672 dw = 0; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 673 while (!time_after(jiffies, end_time)) { 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 674 struct i915_gem_context *ctx; 75b974a859e5d9 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-24 675 struct intel_context *ce; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 676 5888d588597408 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Jason Ekstrand 2021-07-08 677 ctx = kernel_context(i915, NULL); 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 678 if (IS_ERR(ctx)) { 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 679 err = PTR_ERR(ctx); a4e7ccdac38ec8 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-10-04 680 goto out_file; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 681 } 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 682 75b974a859e5d9 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-24 683 ce = i915_gem_context_get_engine(ctx, engine->legacy_idx); 21b0c32bdaba7c drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 684 GEM_BUG_ON(IS_ERR(ce)); 75b974a859e5d9 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-24 685 ca83d5840cb641 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-05-23 686 if (!obj) { 75b974a859e5d9 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-24 687 obj = create_test_object(ce->vm, file, &objects); 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 688 if (IS_ERR(obj)) { 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 689 err = PTR_ERR(obj); 75b974a859e5d9 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-24 690 intel_context_put(ce); c4e6488120e9ef drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 691 kernel_context_close(ctx); a4e7ccdac38ec8 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-10-04 692 goto out_file; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 693 } 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 694 } 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 695 75b974a859e5d9 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-24 696 err = gpu_fill(ce, obj, dw); 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 697 if (err) { 2935ed5339c495 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-10-04 @698 pr_err("Failed to fill dword %lu [%lu/%lu] with gpu (%s) [full-ppgtt? %s], err=%d\n", 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 699 ndwords, dw, max_dwords(obj), 2935ed5339c495 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-10-04 700 engine->name, a4e7ccdac38ec8 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-10-04 701 yesno(!!rcu_access_pointer(ctx->vm)), a4e7ccdac38ec8 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-10-04 702 err); f2085c8e950d53 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 703 intel_context_put(ce); c4e6488120e9ef drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 704 kernel_context_close(ctx); a4e7ccdac38ec8 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-10-04 705 goto out_file; f2085c8e950d53 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 706 } f2085c8e950d53 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 707 f2085c8e950d53 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 708 err = throttle(ce, tq, ARRAY_SIZE(tq)); f2085c8e950d53 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 709 if (err) { f2085c8e950d53 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 710 intel_context_put(ce); c4e6488120e9ef drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 711 kernel_context_close(ctx); a4e7ccdac38ec8 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-10-04 712 goto out_file; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 713 } 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 714 ca83d5840cb641 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-05-23 715 if (++dw == max_dwords(obj)) { ca83d5840cb641 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-05-23 716 obj = NULL; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 717 dw = 0; ca83d5840cb641 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-05-23 718 } e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 719 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 720 ndwords++; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 721 ncontexts++; f2085c8e950d53 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 722 f2085c8e950d53 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 723 intel_context_put(ce); c4e6488120e9ef drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 724 kernel_context_close(ctx); 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 725 } 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 726 e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 727 pr_info("Submitted %lu contexts to %s, filling %lu dwords\n", e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 728 ncontexts, engine->name, ndwords); e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 729 e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 730 ncontexts = dw = 0; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 731 list_for_each_entry(obj, &objects, st_link) { 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 732 unsigned int rem = 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 733 min_t(unsigned int, ndwords - dw, max_dwords(obj)); 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 734 e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 735 err = cpu_check(obj, ncontexts++, rem); 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 736 if (err) 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 737 break; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 738 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 739 dw += rem; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 740 } 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 741 a4e7ccdac38ec8 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-10-04 742 out_file: f2085c8e950d53 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-08-27 743 throttle_release(tq, ARRAY_SIZE(tq)); e4a8c8130ba3ac drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-01-21 744 if (igt_live_test_end(&t)) 7c2f5bc5f0f41a drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2018-05-05 745 err = -EIO; 791ff39ae32a34 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2017-02-13 746 a8c9a7f52ec5a4 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-11-07 747 fput(file); e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 748 if (err) e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 749 return err; 6582f4f613e352 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-07-04 750 6582f4f613e352 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c Chris Wilson 2019-07-04 751 i915_gem_drain_freed_objects(i915); e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 752 } e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 753 e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 754 return 0; e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 755 } e0695db7298ec2 drivers/gpu/drm/i915/selftests/i915_gem_context.c Chris Wilson 2019-03-22 756
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