tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: cb690f5238d71f543f4ce874aa59237cf53a877c commit: e4165ae8304e5ea822fbe5909dd3be5445c058b7 drm/v3d: add multiple syncobjs support date: 5 weeks ago config: riscv-allyesconfig (attached as .config) compiler: riscv64-linux-gcc (GCC) 11.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout e4165ae8304e5ea822fbe5909dd3be5445c058b7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash drivers/gpu/drm/v3d/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/gpu/drm/v3d/v3d_gem.c:1011:45: sparse: sparse: Using plain integer as NULL pointer vim +778 drivers/gpu/drm/v3d/v3d_gem.c 705 706 /** 707 * v3d_submit_cl_ioctl() - Submits a job (frame) to the V3D. 708 * @dev: DRM device 709 * @data: ioctl argument 710 * @file_priv: DRM file for this fd 711 * 712 * This is the main entrypoint for userspace to submit a 3D frame to 713 * the GPU. Userspace provides the binner command list (if 714 * applicable), and the kernel sets up the render command list to draw 715 * to the framebuffer described in the ioctl, using the command lists 716 * that the 3D engine's binner will produce. 717 */ 718 int 719 v3d_submit_cl_ioctl(struct drm_device *dev, void *data, 720 struct drm_file *file_priv) 721 { 722 struct v3d_dev *v3d = to_v3d_dev(dev); 723 struct v3d_file_priv *v3d_priv = file_priv->driver_priv; 724 struct drm_v3d_submit_cl *args = data; 725 struct v3d_submit_ext se = {0}; 726 struct v3d_bin_job *bin = NULL; 727 struct v3d_render_job *render = NULL; 728 struct v3d_job *clean_job = NULL; 729 struct v3d_job *last_job; 730 struct ww_acquire_ctx acquire_ctx; 731 int ret = 0; 732 733 trace_v3d_submit_cl_ioctl(&v3d->drm, args->rcl_start, args->rcl_end); 734 735 if (args->pad) 736 return -EINVAL; 737 738 if (args->flags && 739 args->flags & ~(DRM_V3D_SUBMIT_CL_FLUSH_CACHE | 740 DRM_V3D_SUBMIT_EXTENSION)) { 741 DRM_INFO("invalid flags: %d\n", args->flags); 742 return -EINVAL; 743 } 744 745 if (args->flags & DRM_V3D_SUBMIT_EXTENSION) { 746 ret = v3d_get_extensions(file_priv, args->extensions, &se); 747 if (ret) { 748 DRM_DEBUG("Failed to get extensions.\n"); 749 return ret; 750 } 751 } 752 753 ret = v3d_job_init(v3d, file_priv, (void *)&render, sizeof(*render), 754 v3d_render_job_free, args->in_sync_rcl, &se, V3D_RENDER); 755 if (ret) 756 goto fail; 757 758 render->start = args->rcl_start; 759 render->end = args->rcl_end; 760 INIT_LIST_HEAD(&render->unref_list); 761 762 if (args->bcl_start != args->bcl_end) { 763 ret = v3d_job_init(v3d, file_priv, (void *)&bin, sizeof(*bin), 764 v3d_job_free, args->in_sync_bcl, &se, V3D_BIN); 765 if (ret) 766 goto fail; 767 768 bin->start = args->bcl_start; 769 bin->end = args->bcl_end; 770 bin->qma = args->qma; 771 bin->qms = args->qms; 772 bin->qts = args->qts; 773 bin->render = render; 774 } 775 776 if (args->flags & DRM_V3D_SUBMIT_CL_FLUSH_CACHE) { 777 ret = v3d_job_init(v3d, file_priv, (void *)&clean_job, sizeof(*clean_job), 779 if (ret) 780 goto fail; 781 782 last_job = clean_job; 783 } else { 784 last_job = &render->base; 785 } 786 787 ret = v3d_lookup_bos(dev, file_priv, last_job, 788 args->bo_handles, args->bo_handle_count); 789 if (ret) 790 goto fail; 791 792 ret = v3d_lock_bo_reservations(last_job, &acquire_ctx); 793 if (ret) 794 goto fail; 795 796 if (args->perfmon_id) { 797 render->base.perfmon = v3d_perfmon_find(v3d_priv, 798 args->perfmon_id); 799 800 if (!render->base.perfmon) { 801 ret = -ENOENT; 802 goto fail; 803 } 804 } 805 806 mutex_lock(&v3d->sched_lock); 807 if (bin) { 808 bin->base.perfmon = render->base.perfmon; 809 v3d_perfmon_get(bin->base.perfmon); 810 v3d_push_job(&bin->base); 811 812 ret = drm_sched_job_add_dependency(&render->base.base, 813 dma_fence_get(bin->base.done_fence)); 814 if (ret) 815 goto fail_unreserve; 816 } 817 818 v3d_push_job(&render->base); 819 820 if (clean_job) { 821 struct dma_fence *render_fence = 822 dma_fence_get(render->base.done_fence); 823 ret = drm_sched_job_add_dependency(&clean_job->base, 824 render_fence); 825 if (ret) 826 goto fail_unreserve; 827 clean_job->perfmon = render->base.perfmon; 828 v3d_perfmon_get(clean_job->perfmon); 829 v3d_push_job(clean_job); 830 } 831 832 mutex_unlock(&v3d->sched_lock); 833 834 v3d_attach_fences_and_unlock_reservation(file_priv, 835 last_job, 836 &acquire_ctx, 837 args->out_sync, 838 &se, 839 last_job->done_fence); 840 841 if (bin) 842 v3d_job_put(&bin->base); 843 v3d_job_put(&render->base); 844 if (clean_job) 845 v3d_job_put(clean_job); 846 847 return 0; 848 849 fail_unreserve: 850 mutex_unlock(&v3d->sched_lock); 851 drm_gem_unlock_reservations(last_job->bo, 852 last_job->bo_count, &acquire_ctx); 853 fail: 854 v3d_job_cleanup((void *)bin); 855 v3d_job_cleanup((void *)render); 856 v3d_job_cleanup(clean_job); 857 v3d_put_multisync_post_deps(&se); 858 859 return ret; 860 } 861 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org