[kbuild-all] Re: [chrome-os:chromeos-4.19 1/1] drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:497:18: warning: variable 'dpb_fields' set but not used

tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-4.19 head: 6c21ad6b2e8c303ad5c1f7c0fbeec2dcb2590584 commit: 6c21ad6b2e8c303ad5c1f7c0fbeec2dcb2590584 [1/1] CHROMIUM: media: align H.264 stateless interface with upstream config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-4.19 git checkout 6c21ad6b2e8c303ad5c1f7c0fbeec2dcb2590584 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 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/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c: In function 'get_vdec_decode_parameters': >> drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:497:18: warning: variable 'dpb_fields' set but not used [-Wunused-but-set-variable] 497 | enum v4l2_field dpb_fields[V4L2_H264_NUM_DPB_ENTRIES]; | ^~~~~~~~~~ drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c: In function 'get_pic_info': drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:602:27: warning: parameter 'pic' set but not used [-Wunused-but-set-parameter] 602 | struct vdec_pic_info *pic) | ~~~~~~~~~~~~~~~~~~~~~~^~~ drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c: In function 'vdec_h264_slice_decode': drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:736:28: warning: variable 'dst_buf_info' set but not used [-Wunused-but-set-variable] 736 | struct mtk_video_dec_buf *dst_buf_info; | ^~~~~~~~~~~~ drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:735:28: warning: variable 'src_buf_info' set but not used [-Wunused-but-set-variable] 735 | struct mtk_video_dec_buf *src_buf_info; | ^~~~~~~~~~~~ drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'chroma_format_idc' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'bit_depth_luma_minus8' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'bit_depth_chroma_minus8' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'log2_max_frame_num_minus4' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'pic_order_cnt_type' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'log2_max_pic_order_cnt_lsb_minus4' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'max_num_ref_frames' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'separate_colour_plane_flag' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'pic_width_in_mbs_minus1' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'pic_height_in_map_units_minus1' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'max_frame_nums' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'qpprime_y_zero_transform_bypass_flag' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'delta_pic_order_always_zero_flag' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'frame_mbs_only_flag' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'mb_adaptive_frame_field_flag' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'direct_8x8_inference_flag' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:71: warning: Function parameter or member 'reserved' not described in 'mtk_h264_sps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'num_ref_idx_l0_default_active_minus1' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'num_ref_idx_l1_default_active_minus1' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'weighted_bipred_idc' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'pic_init_qp_minus26' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'chroma_qp_index_offset' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'second_chroma_qp_index_offset' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'entropy_coding_mode_flag' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'pic_order_present_flag' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'deblocking_filter_control_present_flag' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'constrained_intra_pred_flag' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'weighted_pred_flag' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'redundant_pic_cnt_present_flag' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'transform_8x8_mode_flag' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'scaling_matrix_present_flag' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:92: warning: Function parameter or member 'reserved' not described in 'mtk_h264_pps_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:122: warning: Function parameter or member 'dpb' not described in 'slice_api_h264_decode_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:122: warning: Function parameter or member 'num_slices' not described in 'slice_api_h264_decode_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:122: warning: Function parameter or member 'nal_ref_idc' not described in 'slice_api_h264_decode_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:122: warning: Function parameter or member 'ref_pic_list_p0' not described in 'slice_api_h264_decode_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:122: warning: Function parameter or member 'ref_pic_list_b0' not described in 'slice_api_h264_decode_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:122: warning: Function parameter or member 'ref_pic_list_b1' not described in 'slice_api_h264_decode_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:122: warning: Function parameter or member 'top_field_order_cnt' not described in 'slice_api_h264_decode_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:122: warning: Function parameter or member 'bottom_field_order_cnt' not described in 'slice_api_h264_decode_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:122: warning: Function parameter or member 'flags' not described in 'slice_api_h264_decode_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:133: warning: Function parameter or member 'sps' not described in 'mtk_h264_dec_slice_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:133: warning: Function parameter or member 'pps' not described in 'mtk_h264_dec_slice_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:133: warning: Function parameter or member 'scaling_matrix' not described in 'mtk_h264_dec_slice_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:133: warning: Function parameter or member 'decode_params' not described in 'mtk_h264_dec_slice_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:133: warning: Function parameter or member 'h264_dpb_info' not described in 'mtk_h264_dec_slice_param' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:194: warning: Function parameter or member 'h264_slice_params' not described in 'vdec_h264_vsi' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:217: warning: Function parameter or member 'h264_slice_param' not described in 'vdec_h264_slice_inst' drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c:217: warning: Function parameter or member 'dpb' not described in 'vdec_h264_slice_inst' vim +/dpb_fields +497 drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c 700c75679aed6f Alexandre Courbot 2019-11-14 482 31f9ea2329ceef Yunfei Dong 2019-05-17 483 static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst) 31f9ea2329ceef Yunfei Dong 2019-05-17 484 { 700c75679aed6f Alexandre Courbot 2019-11-14 485 const struct v4l2_ctrl_h264_decode_params *dec_params = 6c21ad6b2e8c30 Alexandre Courbot 2021-02-24 486 get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_DECODE_PARAMS); 2533b049b95777 Alexandre Courbot 2021-02-19 487 const struct v4l2_ctrl_h264_sps *sps = 6c21ad6b2e8c30 Alexandre Courbot 2021-02-24 488 get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SPS); 2533b049b95777 Alexandre Courbot 2021-02-19 489 const struct v4l2_ctrl_h264_pps *pps = 6c21ad6b2e8c30 Alexandre Courbot 2021-02-24 490 get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_PPS); 6c21ad6b2e8c30 Alexandre Courbot 2021-02-24 491 const struct v4l2_ctrl_h264_scaling_matrix *scaling_matrix = 6c21ad6b2e8c30 Alexandre Courbot 2021-02-24 492 get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SCALING_MATRIX); 6c21ad6b2e8c30 Alexandre Courbot 2021-02-24 493 struct mtk_h264_dec_slice_param *slice_param = &inst->h264_slice_param; 700c75679aed6f Alexandre Courbot 2019-11-14 494 struct v4l2_ctrl_h264_decode_params fixed_params = *dec_params; 2533b049b95777 Alexandre Courbot 2021-02-19 495 u8 translation_table[V4L2_H264_NUM_DPB_ENTRIES] = { 0x20, }; 2533b049b95777 Alexandre Courbot 2021-02-19 496 struct v4l2_h264_reflist_builder reflist_builder; 2533b049b95777 Alexandre Courbot 2021-02-19 @497 enum v4l2_field dpb_fields[V4L2_H264_NUM_DPB_ENTRIES]; 2533b049b95777 Alexandre Courbot 2021-02-19 498 u8 *p0_reflist = slice_param->decode_params.ref_pic_list_p0; 2533b049b95777 Alexandre Courbot 2021-02-19 499 u8 *b0_reflist = slice_param->decode_params.ref_pic_list_b0; 2533b049b95777 Alexandre Courbot 2021-02-19 500 u8 *b1_reflist = slice_param->decode_params.ref_pic_list_b1; 2533b049b95777 Alexandre Courbot 2021-02-19 501 int i; 700c75679aed6f Alexandre Courbot 2019-11-14 502 700c75679aed6f Alexandre Courbot 2019-11-14 503 update_dpb(dec_params, inst->dpb, translation_table); 700c75679aed6f Alexandre Courbot 2019-11-14 504 memcpy(fixed_params.dpb, inst->dpb, sizeof(inst->dpb)); 700c75679aed6f Alexandre Courbot 2019-11-14 505 2533b049b95777 Alexandre Courbot 2021-02-19 506 get_h264_sps_parameters(&slice_param->sps, sps); 2533b049b95777 Alexandre Courbot 2021-02-19 507 get_h264_pps_parameters(&slice_param->pps, pps); 6c21ad6b2e8c30 Alexandre Courbot 2021-02-24 508 get_h264_scaling_matrix(&slice_param->scaling_matrix, scaling_matrix); 700c75679aed6f Alexandre Courbot 2019-11-14 509 get_h264_decode_parameters(&slice_param->decode_params, &fixed_params); 17c95456b9a923 Alexandre Courbot 2019-10-11 510 get_h264_dpb_list(inst, slice_param); 17c95456b9a923 Alexandre Courbot 2019-10-11 511 2533b049b95777 Alexandre Courbot 2021-02-19 512 /* Prepare the fields for our reference lists */ 2533b049b95777 Alexandre Courbot 2021-02-19 513 for (i = 0; i < V4L2_H264_NUM_DPB_ENTRIES; i++) 2533b049b95777 Alexandre Courbot 2021-02-19 514 dpb_fields[i] = slice_param->h264_dpb_info[i].field; 2533b049b95777 Alexandre Courbot 2021-02-19 515 /* Build the reference lists */ 6c21ad6b2e8c30 Alexandre Courbot 2021-02-24 516 v4l2_h264_init_reflist_builder(&reflist_builder, &fixed_params, sps, 6c21ad6b2e8c30 Alexandre Courbot 2021-02-24 517 dec_params->dpb); 2533b049b95777 Alexandre Courbot 2021-02-19 518 v4l2_h264_build_p_ref_list(&reflist_builder, p0_reflist); 2533b049b95777 Alexandre Courbot 2021-02-19 519 v4l2_h264_build_b_ref_lists(&reflist_builder, b0_reflist, b1_reflist); 2533b049b95777 Alexandre Courbot 2021-02-19 520 /* Adapt the built lists to the firmware's expectations */ 2533b049b95777 Alexandre Courbot 2021-02-19 521 fixup_ref_list(p0_reflist, translation_table, reflist_builder.num_valid); 2533b049b95777 Alexandre Courbot 2021-02-19 522 fixup_ref_list(b0_reflist, translation_table, reflist_builder.num_valid); 2533b049b95777 Alexandre Courbot 2021-02-19 523 fixup_ref_list(b1_reflist, translation_table, reflist_builder.num_valid); 2533b049b95777 Alexandre Courbot 2021-02-19 524 cff93e7cfaa386 Alexandre Courbot 2020-02-10 525 memcpy(&inst->vsi_ctx.h264_slice_params, slice_param, cff93e7cfaa386 Alexandre Courbot 2020-02-10 526 sizeof(inst->vsi_ctx.h264_slice_params)); 31f9ea2329ceef Yunfei Dong 2019-05-17 527 } 31f9ea2329ceef Yunfei Dong 2019-05-17 528 :::::: The code at line 497 was first introduced by commit :::::: 2533b049b957778892305d1efd59ce7dd749f2d0 CHROMIUM: media: mtk-vcodec: compute P/B0/B1 reflists in-driver :::::: TO: Alexandre Courbot <acourbot(a)chromium.org&gt; :::::: CC: Commit Bot <commit-bot(a)chromium.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation 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