tree: https://github.com/intel/linux-intel-lts.git 5.4/yocto head: 8e2b1510d279aecb1f89907553283c79c1b2b226 commit: 8e2b1510d279aecb1f89907553283c79c1b2b226 [5/5] drm/edid: Fix DispID tile parsing for override EDID config: i386-randconfig-m021-20210517 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com&gt; New smatch warnings: drivers/gpu/drm/drm_edid.c:5597 drm_update_tile_info() error: uninitialized symbol 'length'. drivers/gpu/drm/drm_edid.c:5597 drm_update_tile_info() error: uninitialized symbol 'idx'. Old smatch warnings: drivers/gpu/drm/drm_edid.c:1485 drm_edid_are_equal() error: we previously assumed 'edid2' could be null (see line 1478) vim +/length +5597 drivers/gpu/drm/drm_edid.c 8e2b1510d279ae Ville Syrjälä 2020-03-13 5584 void drm_update_tile_info(struct drm_connector *connector, 8e2b1510d279ae Ville Syrjälä 2020-03-13 5585 const struct edid *edid) 40d9b043a89e23 Dave Airlie 2014-10-20 5586 { 8e2b1510d279ae Ville Syrjälä 2020-03-13 5587 const void *displayid = NULL; 8e2b1510d279ae Ville Syrjälä 2020-03-13 5588 int length, idx; ^^^^^^^^^^^^^^^ 40d9b043a89e23 Dave Airlie 2014-10-20 5589 int ret; 40d9b043a89e23 Dave Airlie 2014-10-20 5590 connector->has_tile = false; 40d9b043a89e23 Dave Airlie 2014-10-20 5591 displayid = drm_find_displayid_extension(edid); 40d9b043a89e23 Dave Airlie 2014-10-20 5592 if (!displayid) { 40d9b043a89e23 Dave Airlie 2014-10-20 5593 /* drop reference to any tile group we had */ 40d9b043a89e23 Dave Airlie 2014-10-20 5594 goto out_drop_ref; 40d9b043a89e23 Dave Airlie 2014-10-20 5595 } 40d9b043a89e23 Dave Airlie 2014-10-20 5596 8e2b1510d279ae Ville Syrjälä 2020-03-13 @5597 ret = drm_displayid_parse_tiled(connector, displayid, length, idx); ^^^^^^^^^^^ Uninitialized. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org _______________________________________________ kbuild mailing list -- kbuild(a)lists.01.org To unsubscribe send an email to kbuild-leave(a)lists.01.org