Hi Abhinav, kernel test robot noticed the following build warnings: [auto build test WARNING on next-20231207] [also build test WARNING on v6.7-rc4] [cannot apply to drm-misc/drm-misc-next linus/master v6.7-rc4 v6.7-rc3 v6.7-rc2] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Abhinav-Kumar/drm-msm-dpu-add-formats-check-for-writeback-encoder/20231208-130820 base: next-20231207 patch link: https://lore.kernel.org/r/20231208050641.32582-11-quic_abhinavk%40quicinc.com patch subject: [PATCH v2 10/16] drm/msm/dpu: add CDM related logic to dpu_hw_ctl layer config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20231210/202312102047.S0I69pCs-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231210/202312102047.S0I69pCs-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202312102047.S0I69pCs-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c:537:6: warning: variable 'cdm_active' set but not used [-Wunused-but-set-variable] u32 cdm_active = 0; ^ 1 warning generated. vim +/cdm_active +537 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c 528 529 530 static void dpu_hw_ctl_intf_cfg_v1(struct dpu_hw_ctl *ctx, 531 struct dpu_hw_intf_cfg *cfg) 532 { 533 struct dpu_hw_blk_reg_map *c = &ctx->hw; 534 u32 intf_active = 0; 535 u32 wb_active = 0; 536 u32 mode_sel = 0; > 537 u32 cdm_active = 0; 538 539 /* CTL_TOP[31:28] carries group_id to collate CTL paths 540 * per VM. Explicitly disable it until VM support is 541 * added in SW. Power on reset value is not disable. 542 */ 543 if ((test_bit(DPU_CTL_VM_CFG, &ctx->caps->features))) 544 mode_sel = CTL_DEFAULT_GROUP_ID << 28; 545 546 if (cfg->intf_mode_sel == DPU_CTL_MODE_SEL_CMD) 547 mode_sel |= BIT(17); 548 549 intf_active = DPU_REG_READ(c, CTL_INTF_ACTIVE); 550 wb_active = DPU_REG_READ(c, CTL_WB_ACTIVE); 551 cdm_active = DPU_REG_READ(c, CTL_CDM_ACTIVE); 552 553 if (cfg->intf) 554 intf_active |= BIT(cfg->intf - INTF_0); 555 556 if (cfg->wb) 557 wb_active |= BIT(cfg->wb - WB_0); 558 559 DPU_REG_WRITE(c, CTL_TOP, mode_sel); 560 DPU_REG_WRITE(c, CTL_INTF_ACTIVE, intf_active); 561 DPU_REG_WRITE(c, CTL_WB_ACTIVE, wb_active); 562 563 if (cfg->merge_3d) 564 DPU_REG_WRITE(c, CTL_MERGE_3D_ACTIVE, 565 BIT(cfg->merge_3d - MERGE_3D_0)); 566 567 if (cfg->dsc) 568 DPU_REG_WRITE(c, CTL_DSC_ACTIVE, cfg->dsc); 569 570 if (cfg->cdm) 571 DPU_REG_WRITE(c, CTL_CDM_ACTIVE, cfg->cdm); 572 } 573 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
