tree: https://gitlab.freedesktop.org/drm/msm.git msm-next-pgtables head: b36100ea7b2a6d4b285f04b118b46e58b20b3f94 commit: b36100ea7b2a6d4b285f04b118b46e58b20b3f94 [57/57] WIP: drm/msm: show process names in gem_describe config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout b36100ea7b2a6d4b285f04b118b46e58b20b3f94 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/gpu/drm/msm/msm_gem.c: In function 'msm_gem_describe': 872 | (unsigned long long)vma->aspace, | ^ vim +872 drivers/gpu/drm/msm/msm_gem.c 818 819 void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m) 820 { 821 struct msm_gem_object *msm_obj = to_msm_bo(obj); 822 struct dma_resv *robj = obj->resv; 823 struct dma_resv_list *fobj; 824 struct dma_fence *fence; 825 struct msm_gem_vma *vma; 826 uint64_t off = drm_vma_node_start(&obj->vma_node); 827 const char *madv; 828 829 mutex_lock(&msm_obj->lock); 830 831 switch (msm_obj->madv) { 832 case __MSM_MADV_PURGED: 833 madv = " purged"; 834 break; 835 case MSM_MADV_DONTNEED: 836 madv = " purgeable"; 837 break; 838 case MSM_MADV_WILLNEED: 839 default: 840 madv = ""; 841 break; 842 } 843 844 seq_printf(m, "%08x: %c %2d (%2d) %08llx %p", 845 msm_obj->flags, is_active(msm_obj) ? 'A' : 'I', 846 obj->name, kref_read(&obj->refcount), 847 off, msm_obj->vaddr); 848 849 seq_printf(m, " %08zu %9s %-32s\n", obj->size, madv, msm_obj->name); 850 851 if (!list_empty(&msm_obj->vmas)) { 852 853 seq_puts(m, " vmas:"); 854 855 list_for_each_entry(vma, &msm_obj->vmas, list) { 856 const char *name, *comm; 857 if (vma->aspace) { 858 struct msm_gem_address_space *aspace = vma->aspace; 859 struct task_struct *task = 860 get_pid_task(aspace->pid, PIDTYPE_PID); 861 if (task) { 862 comm = kstrdup(task->comm, GFP_KERNEL); 863 } else { 864 comm = NULL; 865 } 866 name = aspace->name; 867 } else { 868 name = comm = NULL; 869 } 870 seq_printf(m, " [%s%s%s: aspace=%llx, %08llx,%s,inuse=%d]", 871 name, comm ? ":" : "", comm ? comm : "", 873 vma->iova, vma->mapped ? "mapped" : "unmapped", 874 vma->inuse); 875 kfree(comm); 876 } 877 878 seq_puts(m, "\n"); 879 } 880 881 rcu_read_lock(); 882 fobj = rcu_dereference(robj->fence); 883 if (fobj) { 884 unsigned int i, shared_count = fobj->shared_count; 885 886 for (i = 0; i < shared_count; i++) { 887 fence = rcu_dereference(fobj->shared[i]); 888 describe_fence(fence, "Shared", m); 889 } 890 } 891 892 fence = rcu_dereference(robj->fence_excl); 893 if (fence) 894 describe_fence(fence, "Exclusive", m); 895 rcu_read_unlock(); 896 897 mutex_unlock(&msm_obj->lock); 898 } 899 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org