Hi Anthony, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.6.y head: 61aba373f5708f2aebc3f72078e51949a068aa6f commit: 5fc20b04d12c0827dbf498532e8a736a1f88ad6f [1567/1864] drm/amd/display: Split program front end part that occur outside lock config: i386-allmodconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-14) 9.3.0 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/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:72:6: warning: no previous prototype for 'print_microsec' [-Wmissing-prototypes] 72 | void print_microsec(struct dc_context *dc_ctx, | ^~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:126:6: warning: no previous prototype for 'dcn10_log_hubbub_state' [-Wmissing-prototypes] 126 | void dcn10_log_hubbub_state(struct dc *dc, struct dc_log_buffer_ctx *log_ctx) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:1878:6: warning: no previous prototype for 'dcn10_program_pte_vm' [-Wmissing-prototypes] 1878 | void dcn10_program_pte_vm(struct dce_hwseq *hws, struct hubp *hubp) | ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c: In function 'dcn10_post_unlock_program_front_end': 2623 | struct dc_stream_status *stream_status = NULL; | ^~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:85, from drivers/gpu/drm/amd/amdgpu/../display/dc/basics/dc_common.h:29, from drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:28: At top level: drivers/gpu/drm/amd/amdgpu/../display/dc/inc/hw/dpp.h:50:42: warning: 'dpp_input_csc_matrix' defined but not used [-Wunused-const-variable=] 50 | static const struct dpp_input_csc_matrix dpp_input_csc_matrix[] = { | ^~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:32, from drivers/gpu/drm/amd/amdgpu/../display/dc/basics/dc_common.h:29, from drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:28: drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:124:22: warning: 'DP_DVI_CONVERTER_ID_4' defined but not used [-Wunused-const-variable=] 124 | static const uint8_t DP_DVI_CONVERTER_ID_4[] = "m2DVIa"; | ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:122:22: warning: 'DP_VGA_LVDS_CONVERTER_ID_3' defined but not used [-Wunused-const-variable=] 122 | static const uint8_t DP_VGA_LVDS_CONVERTER_ID_3[] = "dnomlA"; | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:120:22: warning: 'DP_VGA_LVDS_CONVERTER_ID_2' defined but not used [-Wunused-const-variable=] 120 | static const uint8_t DP_VGA_LVDS_CONVERTER_ID_2[] = "sivarT"; | ^~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services.h:37, from drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:27: drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=] 76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=] 75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=] 74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL }; | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=] 73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=] 72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL }; | ^~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=] 67 | static const struct fixed31_32 dc_fixpt_zero = { 0 }; | ^~~~~~~~~~~~~ vim +/stream_status +2623 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c 2608 2609 void dcn10_post_unlock_program_front_end( 2610 struct dc *dc, 2611 struct dc_state *context) 2612 { 2613 int i, j; 2614 2615 DC_LOGGER_INIT(dc->ctx->logger); 2616 2617 for (i = 0; i < dc->res_pool->pipe_count; i++) { 2618 struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i]; 2619 2620 if (!pipe_ctx->top_pipe && 2621 !pipe_ctx->prev_odm_pipe && 2622 pipe_ctx->stream) { 2624 struct timing_generator *tg = pipe_ctx->stream_res.tg; 2625 2626 for (j = 0; j < context->stream_count; j++) { 2627 if (pipe_ctx->stream == context->streams[j]) 2628 stream_status = &context->stream_status[j]; 2629 } 2630 2631 if (context->stream_status[i].plane_count == 0) 2632 false_optc_underflow_wa(dc, pipe_ctx->stream, tg); 2633 } 2634 } 2635 2636 for (i = 0; i < dc->res_pool->pipe_count; i++) 2637 if (context->res_ctx.pipe_ctx[i].update_flags.bits.disable) 2638 dc->hwss.disable_plane(dc, &dc->current_state->res_ctx.pipe_ctx[i]); 2639 2640 for (i = 0; i < dc->res_pool->pipe_count; i++) 2641 if (context->res_ctx.pipe_ctx[i].update_flags.bits.disable) { 2642 dc->hwss.optimize_bandwidth(dc, context); 2643 break; 2644 } 2645 2646 if (dc->hwseq->wa.DEGVIDCN10_254) 2647 hubbub1_wm_change_req_wa(dc->res_pool->hubbub); 2648 } 2649 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org