Hi Akhil, kernel test robot noticed the following build warnings:
url: https://github.com/intel-lab-lkp/linux/commits/Akhil-P-Oommen/drm-msm-a6xx-Add-support-for-Adreno-612/20251018-011020 base: cb6649f6217c0331b885cf787f1d175963e2a1d2 patch link: https://lore.kernel.org/r/20251017-qcs615-spin-2-v1-1-0baa44f80905%40oss.qualcomm.com patch subject: [PATCH 1/6] drm/msm/a6xx: Add support for Adreno 612 config: powerpc-randconfig-r073-20251021 (https://download.01.org/0day-ci/archive/20251021/[email protected]/config) compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6) 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 <[email protected]> | Reported-by: Dan Carpenter <[email protected]> | Closes: https://lore.kernel.org/r/[email protected]/ smatch warnings: drivers/gpu/drm/msm/adreno/a6xx_gpu.c:641 a6xx_set_hwcg() error: uninitialized symbol 'cgc_hyst'. vim +/cgc_hyst +641 drivers/gpu/drm/msm/adreno/a6xx_gpu.c 4b565ca5a2cbbbb Jordan Crouse 2018-08-06 600 static void a6xx_set_hwcg(struct msm_gpu *gpu, bool state) 4b565ca5a2cbbbb Jordan Crouse 2018-08-06 601 { 4b565ca5a2cbbbb Jordan Crouse 2018-08-06 602 struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); 4b565ca5a2cbbbb Jordan Crouse 2018-08-06 603 struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); 4b565ca5a2cbbbb Jordan Crouse 2018-08-06 604 struct a6xx_gmu *gmu = &a6xx_gpu->gmu; b1c53a2a2d395d4 Jonathan Marek 2020-07-10 605 const struct adreno_reglist *reg; 4b565ca5a2cbbbb Jordan Crouse 2018-08-06 606 unsigned int i; 40c297eb245b1c9 Konrad Dybcio 2024-08-28 607 u32 cgc_delay, cgc_hyst; 51682bc4abf4b55 Konrad Dybcio 2024-08-28 608 u32 val, clock_cntl_on; 4b565ca5a2cbbbb Jordan Crouse 2018-08-06 609 dff2f69f3e8a6ea Rob Clark 2024-06-18 610 if (!(adreno_gpu->info->a6xx->hwcg || adreno_is_a7xx(adreno_gpu))) b1c53a2a2d395d4 Jonathan Marek 2020-07-10 611 return; b1c53a2a2d395d4 Jonathan Marek 2020-07-10 612 66ffb9150b00f3f Jonathan Marek 2020-07-10 613 if (adreno_is_a630(adreno_gpu)) 66ffb9150b00f3f Jonathan Marek 2020-07-10 614 clock_cntl_on = 0x8aa8aa02; 5cb9695ccef2305 Jie Zhang 2025-10-17 615 else if (adreno_is_a610(adreno_gpu) || adreno_is_a612(adreno_gpu)) e7fc9398e608a7b Konrad Dybcio 2023-06-16 616 clock_cntl_on = 0xaaa8aa82; 18397519cb62248 Konrad Dybcio 2024-02-23 617 else if (adreno_is_a702(adreno_gpu)) 18397519cb62248 Konrad Dybcio 2024-02-23 618 clock_cntl_on = 0xaaaaaa82; 66ffb9150b00f3f Jonathan Marek 2020-07-10 619 else 66ffb9150b00f3f Jonathan Marek 2020-07-10 620 clock_cntl_on = 0x8aa8aa82; 66ffb9150b00f3f Jonathan Marek 2020-07-10 621 5cb9695ccef2305 Jie Zhang 2025-10-17 622 if (adreno_is_a612(adreno_gpu)) 5cb9695ccef2305 Jie Zhang 2025-10-17 623 cgc_delay = 0x11; 5cb9695ccef2305 Jie Zhang 2025-10-17 624 else if (adreno_is_a615_family(adreno_gpu)) 5cb9695ccef2305 Jie Zhang 2025-10-17 625 cgc_delay = 0x111; 5cb9695ccef2305 Jie Zhang 2025-10-17 626 else 5cb9695ccef2305 Jie Zhang 2025-10-17 627 cgc_delay = 0x10111; 5cb9695ccef2305 Jie Zhang 2025-10-17 628 5cb9695ccef2305 Jie Zhang 2025-10-17 629 if (adreno_is_a612(adreno_gpu)) 5cb9695ccef2305 Jie Zhang 2025-10-17 630 cgc_hyst = 0x55; Only initialized here and not on other paths. 5cb9695ccef2305 Jie Zhang 2025-10-17 631 else if (adreno_is_a615_family(adreno_gpu)) 5cb9695ccef2305 Jie Zhang 2025-10-17 632 cgc_delay = 0x555; 5cb9695ccef2305 Jie Zhang 2025-10-17 633 else 5cb9695ccef2305 Jie Zhang 2025-10-17 634 cgc_delay = 0x5555; 40c297eb245b1c9 Konrad Dybcio 2024-08-28 635 af66706accdf5af Konrad Dybcio 2023-09-25 636 gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_MODE_CNTL, 51682bc4abf4b55 Konrad Dybcio 2024-08-28 637 state ? adreno_gpu->info->a6xx->gmu_cgc_mode : 0); af66706accdf5af Konrad Dybcio 2023-09-25 638 gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_DELAY_CNTL, 40c297eb245b1c9 Konrad Dybcio 2024-08-28 639 state ? cgc_delay : 0); af66706accdf5af Konrad Dybcio 2023-09-25 640 gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_HYST_CNTL, 40c297eb245b1c9 Konrad Dybcio 2024-08-28 @641 state ? cgc_hyst : 0); ^^^^^^^^ Uninitialized af66706accdf5af Konrad Dybcio 2023-09-25 642 dff2f69f3e8a6ea Rob Clark 2024-06-18 643 if (!adreno_gpu->info->a6xx->hwcg) { d2bcca0ccccfa5e Neil Armstrong 2024-02-16 644 gpu_write(gpu, REG_A7XX_RBBM_CLOCK_CNTL_GLOBAL, 1); -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
