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charset=us-ascii Content-Disposition: inline BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev In-Reply-To: <20250725154136.1008132-5-ivecera@redhat.com> References: <20250725154136.1008132-5-ivecera@redhat.com> TO: Ivan Vecera TO: netdev@vger.kernel.org CC: Jiri Pirko CC: Eric Dumazet CC: Jakub Kicinski CC: Paolo Abeni CC: Simon Horman CC: Jonathan Corbet CC: Prathosh Satish CC: linux-doc@vger.kernel.org CC: linux-kernel@vger.kernel.org CC: Michal Schmidt CC: Petr Oros Hi Ivan, kernel test robot noticed the following build warnings: [auto build test WARNING on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/Ivan-Vecera/dpll-zl3073x-Add-functions-to-access-hardware-registers/20250725-234600 base: net-next/main patch link: https://lore.kernel.org/r/20250725154136.1008132-5-ivecera%40redhat.com patch subject: [PATCH net-next 4/5] dpll: zl3073x: Refactor DPLL initialization :::::: branch date: 3 days ago :::::: commit date: 3 days ago config: nios2-randconfig-r072-20250728 (https://download.01.org/0day-ci/archive/20250728/202507282309.ToVNHlep-lkp@intel.com/config) compiler: nios2-linux-gcc (GCC) 8.5.0 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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202507282309.ToVNHlep-lkp@intel.com/ smatch warnings: drivers/dpll/zl3073x/core.c:996 zl3073x_dev_phase_meas_setup() error: uninitialized symbol 'mask'. vim +/mask +996 drivers/dpll/zl3073x/core.c 75a71ecc24125f Ivan Vecera 2025-07-04 958 cafbc8d62bf9bd Ivan Vecera 2025-07-25 959 /** cafbc8d62bf9bd Ivan Vecera 2025-07-25 960 * zl3073x_dev_phase_meas_setup - setup phase offset measurement cafbc8d62bf9bd Ivan Vecera 2025-07-25 961 * @zldev: pointer to zl3073x_dev structure cafbc8d62bf9bd Ivan Vecera 2025-07-25 962 * cafbc8d62bf9bd Ivan Vecera 2025-07-25 963 * Enable phase offset measurement block, set measurement averaging factor cafbc8d62bf9bd Ivan Vecera 2025-07-25 964 * and enable DPLL-to-its-ref phase measurement for all DPLLs. cafbc8d62bf9bd Ivan Vecera 2025-07-25 965 * cafbc8d62bf9bd Ivan Vecera 2025-07-25 966 * Returns: 0 on success, <0 on error cafbc8d62bf9bd Ivan Vecera 2025-07-25 967 */ cafbc8d62bf9bd Ivan Vecera 2025-07-25 968 static int cafbc8d62bf9bd Ivan Vecera 2025-07-25 969 zl3073x_dev_phase_meas_setup(struct zl3073x_dev *zldev) cafbc8d62bf9bd Ivan Vecera 2025-07-25 970 { cafbc8d62bf9bd Ivan Vecera 2025-07-25 971 struct zl3073x_dpll *zldpll; cafbc8d62bf9bd Ivan Vecera 2025-07-25 972 u8 dpll_meas_ctrl, mask; cafbc8d62bf9bd Ivan Vecera 2025-07-25 973 int rc; cafbc8d62bf9bd Ivan Vecera 2025-07-25 974 cafbc8d62bf9bd Ivan Vecera 2025-07-25 975 /* Read DPLL phase measurement control register */ cafbc8d62bf9bd Ivan Vecera 2025-07-25 976 rc = zl3073x_read_u8(zldev, ZL_REG_DPLL_MEAS_CTRL, &dpll_meas_ctrl); cafbc8d62bf9bd Ivan Vecera 2025-07-25 977 if (rc) cafbc8d62bf9bd Ivan Vecera 2025-07-25 978 return rc; cafbc8d62bf9bd Ivan Vecera 2025-07-25 979 cafbc8d62bf9bd Ivan Vecera 2025-07-25 980 /* Setup phase measurement averaging factor */ cafbc8d62bf9bd Ivan Vecera 2025-07-25 981 dpll_meas_ctrl &= ~ZL_DPLL_MEAS_CTRL_AVG_FACTOR; cafbc8d62bf9bd Ivan Vecera 2025-07-25 982 dpll_meas_ctrl |= FIELD_PREP(ZL_DPLL_MEAS_CTRL_AVG_FACTOR, 3); cafbc8d62bf9bd Ivan Vecera 2025-07-25 983 cafbc8d62bf9bd Ivan Vecera 2025-07-25 984 /* Enable DPLL measurement block */ cafbc8d62bf9bd Ivan Vecera 2025-07-25 985 dpll_meas_ctrl |= ZL_DPLL_MEAS_CTRL_EN; cafbc8d62bf9bd Ivan Vecera 2025-07-25 986 cafbc8d62bf9bd Ivan Vecera 2025-07-25 987 /* Update phase measurement control register */ cafbc8d62bf9bd Ivan Vecera 2025-07-25 988 rc = zl3073x_write_u8(zldev, ZL_REG_DPLL_MEAS_CTRL, dpll_meas_ctrl); cafbc8d62bf9bd Ivan Vecera 2025-07-25 989 if (rc) cafbc8d62bf9bd Ivan Vecera 2025-07-25 990 return rc; cafbc8d62bf9bd Ivan Vecera 2025-07-25 991 cafbc8d62bf9bd Ivan Vecera 2025-07-25 992 /* Enable DPLL-to-connected-ref measurement for each channel */ cafbc8d62bf9bd Ivan Vecera 2025-07-25 993 list_for_each_entry(zldpll, &zldev->dplls, list) cafbc8d62bf9bd Ivan Vecera 2025-07-25 994 mask |= BIT(zldpll->id); cafbc8d62bf9bd Ivan Vecera 2025-07-25 995 cafbc8d62bf9bd Ivan Vecera 2025-07-25 @996 return zl3073x_write_u8(zldev, ZL_REG_DPLL_PHASE_ERR_READ_MASK, mask); cafbc8d62bf9bd Ivan Vecera 2025-07-25 997 } cafbc8d62bf9bd Ivan Vecera 2025-07-25 998 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki