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Mon, 05 Sep 2022 20:52:53 +0000 Date: Tue, 6 Sep 2022 04:52:10 +0800 From: kernel test robot To: Fangzhi Zuo Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Alex Deucher , Nicholas Kazlauskas Subject: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c:439:14: warning: variable 'sdp_stream_enable' set but not used Message-ID: <202209060420.Wzjr6Sj2-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Fangzhi, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 7e18e42e4b280c85b76967a9106a13ca61c16179 commit: 83228ebb82e4fe2e5513f35d9b0b0eded3c44cbc drm/amd/display: Add DP 2.0 HPO Stream Encoder date: 1 year ago config: i386-buildonly-randconfig-r004-20220905 (https://download.01.org/0day-ci/archive/20220906/202209060420.Wzjr6Sj2-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-5) 11.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=83228ebb82e4fe2e5513f35d9b0b0eded3c44cbc git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 83228ebb82e4fe2e5513f35d9b0b0eded3c44cbc # 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/ 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/dcn31/dcn31_hpo_dp_stream_encoder.c: In function 'dcn31_hpo_dp_stream_enc_update_dp_info_packets': >> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c:439:14: warning: variable 'sdp_stream_enable' set but not used [-Wunused-but-set-variable] 439 | bool sdp_stream_enable = false; | ^~~~~~~~~~~~~~~~~ vim +/sdp_stream_enable +439 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn31/dcn31_hpo_dp_stream_encoder.c 432 433 static void dcn31_hpo_dp_stream_enc_update_dp_info_packets( 434 struct hpo_dp_stream_encoder *enc, 435 const struct encoder_info_frame *info_frame) 436 { 437 struct dcn31_hpo_dp_stream_encoder *enc3 = DCN3_1_HPO_DP_STREAM_ENC_FROM_HPO_STREAM_ENC(enc); 438 uint32_t dmdata_packet_enabled = 0; > 439 bool sdp_stream_enable = false; 440 441 if (info_frame->vsc.valid) { 442 enc->vpg->funcs->update_generic_info_packet( 443 enc->vpg, 444 0, /* packetIndex */ 445 &info_frame->vsc); 446 sdp_stream_enable = true; 447 } 448 if (info_frame->spd.valid) { 449 enc->vpg->funcs->update_generic_info_packet( 450 enc->vpg, 451 2, /* packetIndex */ 452 &info_frame->spd); 453 sdp_stream_enable = true; 454 } 455 if (info_frame->hdrsmd.valid) { 456 enc->vpg->funcs->update_generic_info_packet( 457 enc->vpg, 458 3, /* packetIndex */ 459 &info_frame->hdrsmd); 460 sdp_stream_enable = true; 461 } 462 /* enable/disable transmission of packet(s). 463 * If enabled, packet transmission begins on the next frame 464 */ 465 REG_UPDATE(DP_SYM32_ENC_SDP_GSP_CONTROL0, GSP_VIDEO_CONTINUOUS_TRANSMISSION_ENABLE, info_frame->vsc.valid); 466 REG_UPDATE(DP_SYM32_ENC_SDP_GSP_CONTROL2, GSP_VIDEO_CONTINUOUS_TRANSMISSION_ENABLE, info_frame->spd.valid); 467 REG_UPDATE(DP_SYM32_ENC_SDP_GSP_CONTROL3, GSP_VIDEO_CONTINUOUS_TRANSMISSION_ENABLE, info_frame->hdrsmd.valid); 468 469 /* check if dynamic metadata packet transmission is enabled */ 470 REG_GET(DP_SYM32_ENC_SDP_METADATA_PACKET_CONTROL, 471 METADATA_PACKET_ENABLE, &dmdata_packet_enabled); 472 473 /* Enable secondary data path */ 474 REG_UPDATE(DP_SYM32_ENC_SDP_CONTROL, 475 SDP_STREAM_ENABLE, 1); 476 } 477 -- 0-DAY CI Kernel Test Service https://01.org/lkp