tree: git://anongit.freedesktop.org/drm/drm-misc for-linux-next head: dd9e329af7236e34c566d3705ea32a63069b9b13 commit: 686b21b5f6ca2f8a716f9a4ade07246dbfb2713e [5/10] drm: Add fdinfo memory stats config: x86_64-randconfig-m001-20230524 compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Reported-by: Dan Carpenter <error27@xxxxxxxxx> | Closes: https://lore.kernel.org/r/202305260440.7dv6FZHq-lkp@xxxxxxxxx/ smatch warnings: drivers/gpu/drm/drm_file.c:967 drm_show_memory_stats() error: uninitialized symbol 'supported_status'. vim +/supported_status +967 drivers/gpu/drm/drm_file.c 686b21b5f6ca2f Rob Clark 2023-05-24 923 void drm_show_memory_stats(struct drm_printer *p, struct drm_file *file) 686b21b5f6ca2f Rob Clark 2023-05-24 924 { 686b21b5f6ca2f Rob Clark 2023-05-24 925 struct drm_gem_object *obj; 686b21b5f6ca2f Rob Clark 2023-05-24 926 struct drm_memory_stats status = {}; 686b21b5f6ca2f Rob Clark 2023-05-24 927 enum drm_gem_object_status supported_status; 686b21b5f6ca2f Rob Clark 2023-05-24 928 int id; 686b21b5f6ca2f Rob Clark 2023-05-24 929 686b21b5f6ca2f Rob Clark 2023-05-24 930 spin_lock(&file->table_lock); 686b21b5f6ca2f Rob Clark 2023-05-24 931 idr_for_each_entry (&file->object_idr, obj, id) { 686b21b5f6ca2f Rob Clark 2023-05-24 932 enum drm_gem_object_status s = 0; 686b21b5f6ca2f Rob Clark 2023-05-24 933 686b21b5f6ca2f Rob Clark 2023-05-24 934 if (obj->funcs && obj->funcs->status) { 686b21b5f6ca2f Rob Clark 2023-05-24 935 s = obj->funcs->status(obj); 686b21b5f6ca2f Rob Clark 2023-05-24 936 supported_status = DRM_GEM_OBJECT_RESIDENT | 686b21b5f6ca2f Rob Clark 2023-05-24 937 DRM_GEM_OBJECT_PURGEABLE; Smatch is concerned that we might not hit this assignment. That seems reasonable, because otherwise why not hard code it at the start? 686b21b5f6ca2f Rob Clark 2023-05-24 938 } 686b21b5f6ca2f Rob Clark 2023-05-24 939 686b21b5f6ca2f Rob Clark 2023-05-24 940 if (obj->handle_count > 1) { 686b21b5f6ca2f Rob Clark 2023-05-24 941 status.shared += obj->size; 686b21b5f6ca2f Rob Clark 2023-05-24 942 } else { 686b21b5f6ca2f Rob Clark 2023-05-24 943 status.private += obj->size; 686b21b5f6ca2f Rob Clark 2023-05-24 944 } 686b21b5f6ca2f Rob Clark 2023-05-24 945 686b21b5f6ca2f Rob Clark 2023-05-24 946 if (s & DRM_GEM_OBJECT_RESIDENT) { 686b21b5f6ca2f Rob Clark 2023-05-24 947 status.resident += obj->size; 686b21b5f6ca2f Rob Clark 2023-05-24 948 } else { 686b21b5f6ca2f Rob Clark 2023-05-24 949 /* If already purged or not yet backed by pages, don't 686b21b5f6ca2f Rob Clark 2023-05-24 950 * count it as purgeable: 686b21b5f6ca2f Rob Clark 2023-05-24 951 */ 686b21b5f6ca2f Rob Clark 2023-05-24 952 s &= ~DRM_GEM_OBJECT_PURGEABLE; 686b21b5f6ca2f Rob Clark 2023-05-24 953 } 686b21b5f6ca2f Rob Clark 2023-05-24 954 686b21b5f6ca2f Rob Clark 2023-05-24 955 if (!dma_resv_test_signaled(obj->resv, dma_resv_usage_rw(true))) { 686b21b5f6ca2f Rob Clark 2023-05-24 956 status.active += obj->size; 686b21b5f6ca2f Rob Clark 2023-05-24 957 686b21b5f6ca2f Rob Clark 2023-05-24 958 /* If still active, don't count as purgeable: */ 686b21b5f6ca2f Rob Clark 2023-05-24 959 s &= ~DRM_GEM_OBJECT_PURGEABLE; 686b21b5f6ca2f Rob Clark 2023-05-24 960 } 686b21b5f6ca2f Rob Clark 2023-05-24 961 686b21b5f6ca2f Rob Clark 2023-05-24 962 if (s & DRM_GEM_OBJECT_PURGEABLE) 686b21b5f6ca2f Rob Clark 2023-05-24 963 status.purgeable += obj->size; 686b21b5f6ca2f Rob Clark 2023-05-24 964 } 686b21b5f6ca2f Rob Clark 2023-05-24 965 spin_unlock(&file->table_lock); 686b21b5f6ca2f Rob Clark 2023-05-24 966 686b21b5f6ca2f Rob Clark 2023-05-24 @967 drm_print_memory_stats(p, &status, supported_status, "memory"); 686b21b5f6ca2f Rob Clark 2023-05-24 968 } -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
