[kbuild-all] drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_init.c:107:20: warning: initialized field overwritten

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 69119673bd50b176ded34032fadd41530fb5af21 commit: 78c7738211e027f122ada3f59c2c5e8a83ee3c59 drm/amd/display: cleanup of function pointer tables date: 7 months ago config: i386-randconfig-s001-20200617 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-rc1-6-g78f577f8-dirty git checkout 78c7738211e027f122ada3f59c2c5e8a83ee3c59 # save the attached .config to linux build tree make W=1 C=1 ARCH=i386 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' 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 >>, old ones prefixed by <<): 107 | .dsc_pg_control = dcn20_dsc_pg_control, | ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_init.c:107:20: note: (near initialization for 'dcn20_funcs.dsc_pg_control') drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_init.c:119:6: warning: no previous prototype for 'dcn20_hw_sequencer_construct' [-Wmissing-prototypes] 119 | void dcn20_hw_sequencer_construct(struct dc *dc) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:32, from drivers/gpu/drm/amd/amdgpu/../display/dc/dce110/dce110_hw_sequencer.h:29, from drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_init.c:26: 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:34, from drivers/gpu/drm/amd/amdgpu/../display/dc/dc.h:29, from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:29, from drivers/gpu/drm/amd/amdgpu/../display/dc/dce110/dce110_hw_sequencer.h:29, from drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_init.c:26: 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 +107 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_init.c 29 30 static const struct hw_sequencer_funcs dcn20_funcs = { 31 .program_gamut_remap = dcn10_program_gamut_remap, 32 .init_hw = dcn10_init_hw, 33 .init_pipes = dcn10_init_pipes, 34 .apply_ctx_to_hw = dce110_apply_ctx_to_hw, 35 .apply_ctx_for_surface = NULL, 36 .program_front_end_for_ctx = dcn20_program_front_end_for_ctx, 37 .update_plane_addr = dcn20_update_plane_addr, 38 .plane_atomic_disconnect = dcn10_plane_atomic_disconnect, 39 .update_dchub = dcn10_update_dchub, 40 .update_mpcc = dcn20_update_mpcc, 41 .update_pending_status = dcn10_update_pending_status, 42 .set_input_transfer_func = dcn20_set_input_transfer_func, 43 .set_output_transfer_func = dcn20_set_output_transfer_func, 44 .program_output_csc = dcn20_program_output_csc, 45 .power_down = dce110_power_down, 46 .enable_accelerated_mode = dce110_enable_accelerated_mode, 47 .enable_timing_synchronization = dcn10_enable_timing_synchronization, 48 .enable_per_frame_crtc_position_reset = dcn10_enable_per_frame_crtc_position_reset, 49 .update_info_frame = dce110_update_info_frame, 50 .send_immediate_sdp_message = dcn10_send_immediate_sdp_message, 51 .enable_stream = dcn20_enable_stream, 52 .disable_stream = dce110_disable_stream, 53 .unblank_stream = dcn20_unblank_stream, 54 .blank_stream = dce110_blank_stream, 55 .enable_audio_stream = dce110_enable_audio_stream, 56 .disable_audio_stream = dce110_disable_audio_stream, 57 .enable_display_power_gating = dcn10_dummy_display_power_gating, 58 .disable_plane = dcn20_disable_plane, 59 .blank_pixel_data = dcn20_blank_pixel_data, 60 .pipe_control_lock = dcn20_pipe_control_lock, 61 .pipe_control_lock_global = dcn20_pipe_control_lock_global, 62 .prepare_bandwidth = dcn20_prepare_bandwidth, 63 .optimize_bandwidth = dcn20_optimize_bandwidth, 64 .update_bandwidth = dcn20_update_bandwidth, 65 .reset_hw_ctx_wrap = dcn20_reset_hw_ctx_wrap, 66 .enable_stream_timing = dcn20_enable_stream_timing, 67 .set_drr = dcn10_set_drr, 68 .get_position = dcn10_get_position, 69 .set_static_screen_control = dcn10_set_static_screen_control, 70 .setup_stereo = dcn10_setup_stereo, 71 .set_avmute = dce110_set_avmute, 72 .log_hw_state = dcn10_log_hw_state, 73 .get_hw_state = dcn10_get_hw_state, 74 .clear_status_bits = dcn10_clear_status_bits, 75 .wait_for_mpcc_disconnect = dcn10_wait_for_mpcc_disconnect, 76 .edp_backlight_control = dce110_edp_backlight_control, 77 .edp_power_control = dce110_edp_power_control, 78 .edp_wait_for_hpd_ready = dce110_edp_wait_for_hpd_ready, 79 .set_cursor_position = dcn10_set_cursor_position, 80 .set_cursor_attribute = dcn10_set_cursor_attribute, 81 .set_cursor_sdr_white_level = dcn10_set_cursor_sdr_white_level, 82 .disable_stream_gating = dcn20_disable_stream_gating, 83 .enable_stream_gating = dcn20_enable_stream_gating, 84 .setup_periodic_interrupt = dcn10_setup_periodic_interrupt, 85 .setup_vupdate_interrupt = dcn20_setup_vupdate_interrupt, 86 .set_clock = dcn10_set_clock, 87 .get_clock = dcn10_get_clock, 88 .did_underflow_occur = dcn10_did_underflow_occur, 89 .init_blank = dcn20_init_blank, 90 .disable_vga = dcn20_disable_vga, 91 .bios_golden_init = dcn10_bios_golden_init, 92 .plane_atomic_disable = dcn20_plane_atomic_disable, 93 .plane_atomic_power_down = dcn10_plane_atomic_power_down, 94 .enable_power_gating_plane = dcn20_enable_power_gating_plane, 95 .dpp_pg_control = dcn20_dpp_pg_control, 96 .hubp_pg_control = dcn20_hubp_pg_control, 97 .dsc_pg_control = NULL, 98 .program_triplebuffer = dcn20_program_triple_buffer, 99 .enable_writeback = dcn20_enable_writeback, 100 .disable_writeback = dcn20_disable_writeback, 101 .update_odm = dcn20_update_odm, 102 .dmdata_status_done = dcn20_dmdata_status_done, 103 .program_dmdata_engine = dcn20_program_dmdata_engine, 104 .init_sys_ctx = dcn20_init_sys_ctx, 105 .init_vm_ctx = dcn20_init_vm_ctx, 106 .set_flip_control_gsl = dcn20_set_flip_control_gsl, 108 .get_surface_visual_confirm_color = dcn10_get_surface_visual_confirm_color, 109 .get_hdr_visual_confirm_color = dcn10_get_hdr_visual_confirm_color, 110 .set_hdr_multiplier = dcn10_set_hdr_multiplier, 111 .verify_allow_pstate_change_high = dcn10_verify_allow_pstate_change_high, 112 .wait_for_blank_complete = dcn20_wait_for_blank_complete, 113 .dccg_init = dcn20_dccg_init, 114 .set_blend_lut = dcn20_set_blend_lut, 115 .set_shaper_3dlut = dcn20_set_shaper_3dlut, 116 .get_vupdate_offset_from_vsync = dcn10_get_vupdate_offset_from_vsync, 117 }; 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