Hi Alex, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 9abf2313adc1ca1b6180c508c25f22f9395cc780 commit: 20f2ffe504728612d7b0c34e4f8280e34251e704 drm/amdgpu: fold CONFIG_DRM_AMD_DC_DCN3* into CONFIG_DRM_AMD_DC_DCN (v3) date: 1 year, 11 months ago config: i386-buildonly-randconfig-r005-20221017 compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=20f2ffe504728612d7b0c34e4f8280e34251e704 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 20f2ffe504728612d7b0c34e4f8280e34251e704 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/ kernel/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All warnings (new ones prefixed by >>): drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_hwseq.c: In function 'dcn30_enable_writeback': >> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_hwseq.c:322:34: warning: variable 'optc' set but not used [-Wunused-but-set-variable] 322 | struct timing_generator *optc; | ^~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_hwseq.c: In function 'dcn30_update_info_frame': drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_hwseq.c:654:14: warning: variable 'is_dp' set but not used [-Wunused-but-set-variable] 654 | bool is_dp; | ^~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:86, from drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_hwseq.c:29: 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/dcn30/dcn30_hwseq.c:29: drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:126:22: warning: 'DP_DVI_CONVERTER_ID_5' defined but not used [-Wunused-const-variable=] 126 | static const uint8_t DP_DVI_CONVERTER_ID_5[] = "3393N2"; | ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:125:22: warning: 'DP_DVI_CONVERTER_ID_4' defined but not used [-Wunused-const-variable=] 125 | static const uint8_t DP_DVI_CONVERTER_ID_4[] = "m2DVIa"; | ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:123:22: warning: 'DP_VGA_LVDS_CONVERTER_ID_3' defined but not used [-Wunused-const-variable=] 123 | static const uint8_t DP_VGA_LVDS_CONVERTER_ID_3[] = "dnomlA"; | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:121:22: warning: 'DP_VGA_LVDS_CONVERTER_ID_2' defined but not used [-Wunused-const-variable=] 121 | 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:35, from drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_hwseq.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/dc/dcn30/dcn30_afmt.c: In function 'afmt3_se_audio_setup': >> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_afmt.c:122:18: warning: variable 'speakers' set but not used [-Wunused-but-set-variable] 122 | uint32_t speakers = 0; | ^~~~~~~~ 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:35, from drivers/gpu/drm/amd/amdgpu/../display/include/bios_parser_types.h:30, from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_bios_types.h:39, from drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_afmt.c:27: At top level: 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/dc/dcn30/dcn30_hubp.c: In function 'hubp3_set_vm_system_aperture_settings': >> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_hubp.c:50:30: warning: variable 'mc_vm_apt_default' set but not used [-Wunused-but-set-variable] 50 | PHYSICAL_ADDRESS_LOC mc_vm_apt_default; | ^~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33, from drivers/gpu/drm/amd/amdgpu/../display/dc/dc.h:29, from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/hw/mem_input.h:28, from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/hw/hubp.h:29, from drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/../dcn10/dcn10_hubp.h:28, from drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_hubp.h:29, from drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_hubp.h:29, from drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_hubp.c:26: At top level: 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 }; | ^~~~~~~~~~~ vim +/optc +322 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_hwseq.c d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 314 d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 315 void dcn30_enable_writeback( d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 316 struct dc *dc, d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 317 struct dc_writeback_info *wb_info, d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 318 struct dc_state *context) d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 319 { d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 320 struct dwbc *dwb; d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 321 struct mcif_wb *mcif_wb; d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 @322 struct timing_generator *optc; d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 323 d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 324 dwb = dc->res_pool->dwbc[wb_info->dwb_pipe_inst]; d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 325 mcif_wb = dc->res_pool->mcif_wb[wb_info->dwb_pipe_inst]; d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 326 d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 327 /* set the OPTC source mux */ d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 328 optc = dc->res_pool->timing_generators[dwb->otg_inst]; d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 329 DC_LOG_DWB("%s dwb_pipe_inst = %d, mpcc_inst = %d",\ d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 330 __func__, wb_info->dwb_pipe_inst,\ d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 331 wb_info->mpcc_inst); d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 332 if (IS_DIAG_DC(dc->ctx->dce_environment)) { d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 333 /*till diags switch to warmup interface*/ d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 334 dcn30_mmhubbub_warmup(dc, 1, wb_info); d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 335 } d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 336 /* Update writeback pipe */ d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 337 dcn30_set_writeback(dc, wb_info, context); d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 338 d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 339 /* Enable MCIF_WB */ d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 340 mcif_wb->funcs->enable_mcif(mcif_wb); d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 341 /* Enable DWB */ d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 342 dwb->funcs->enable(dwb, &wb_info->dwb_params); d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 343 } d99f13878d6f9c2 Bhawanpreet Lakha 2020-05-21 344 :::::: The code at line 322 was first introduced by commit :::::: d99f13878d6f9c286b13860d8bf0b4db9ffb189a drm/amd/display: Add DCN3 HWSEQ :::::: TO: Bhawanpreet Lakha :::::: CC: Alex Deucher -- 0-DAY CI Kernel Test Service https://01.org/lkp