Hi Svyatoslav, kernel test robot noticed the following build warnings:
[auto build test WARNING on tegra/for-next] [also build test WARNING on robh/for-next clk/clk-next linus/master v6.17-rc6] [cannot apply to next-20250912] [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/Svyatoslav-Ryhel/clk-tegra-set-CSUS-as-vi_sensors-gate-for-Tegra20-Tegra30-and-Tegra114/20250906-215750 base: https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux.git for-next patch link: https://lore.kernel.org/r/20250906135345.241229-24-clamor95%40gmail.com patch subject: [PATCH v2 23/23] staging: media: tegra-video: add CSI support for Tegra20 and Tegra30 config: arm-randconfig-r131-20250915 (https://download.01.org/0day-ci/archive/20250915/202509151319.m4lqxwa8-...@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 21857ae337e0892a5522b6e7337899caa61de2a6) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250915/202509151319.m4lqxwa8-...@intel.com/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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202509151319.m4lqxwa8-...@intel.com/ All warnings (new ones prefixed by >>): In file included from <built-in>:3: In file included from include/linux/compiler_types.h:171: include/linux/compiler-clang.h:28:9: warning: '__SANITIZE_ADDRESS__' macro redefined [-Wmacro-redefined] 28 | #define __SANITIZE_ADDRESS__ | ^ <built-in>:366:9: note: previous definition is here 366 | #define __SANITIZE_ADDRESS__ 1 | ^ >> drivers/staging/media/tegra-video/tegra20.c:909:6: warning: variable 'pp' is >> used uninitialized whenever 'if' condition is true >> [-Wsometimes-uninitialized] 909 | if (ret < 0) { | ^~~~~~~ drivers/staging/media/tegra-video/tegra20.c:923:53: note: uninitialized use occurs here 923 | tegra20_mipi_write(mipi, TEGRA_CSI_CSI_CIL_STATUS, pp); | ^~ drivers/staging/media/tegra-video/tegra20.c:909:2: note: remove the 'if' if its condition is always false 909 | if (ret < 0) { | ^~~~~~~~~~~~~~ 910 | dev_warn(csi->dev, "MIPI calibration status timeout!\n"); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 911 | goto exit; | ~~~~~~~~~~ 912 | } | ~ drivers/staging/media/tegra-video/tegra20.c:900:6: warning: variable 'pp' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized] 900 | if (ret < 0) { | ^~~~~~~ drivers/staging/media/tegra-video/tegra20.c:923:53: note: uninitialized use occurs here 923 | tegra20_mipi_write(mipi, TEGRA_CSI_CSI_CIL_STATUS, pp); | ^~ drivers/staging/media/tegra-video/tegra20.c:900:2: note: remove the 'if' if its condition is always false 900 | if (ret < 0) { | ^~~~~~~~~~~~~~ 901 | dev_warn(csi->dev, "MIPI calibration timeout!\n"); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 902 | goto exit; | ~~~~~~~~~~ 903 | } | ~ drivers/staging/media/tegra-video/tegra20.c:886:15: note: initialize the variable 'pp' to silence this warning 886 | u32 value, pp, cil; | ^ | = 0 3 warnings generated. vim +909 drivers/staging/media/tegra-video/tegra20.c 880 881 static int tegra20_finish_pad_calibration(struct tegra_mipi_device *mipi) 882 { 883 struct tegra_csi *csi = mipi->csi; 884 void __iomem *cil_status_reg = csi->iomem + TEGRA_CSI_CSI_CIL_STATUS; 885 unsigned int port = mipi->pads; 886 u32 value, pp, cil; 887 int ret; 888 889 /* This part is only for CSI */ 890 if (port > PORT_B) { 891 pm_runtime_put(csi->dev); 892 893 return 0; 894 } 895 896 guard(mutex)(&csi->mipi_lock); 897 898 ret = readl_relaxed_poll_timeout(cil_status_reg, value, 899 value & CSI_MIPI_AUTO_CAL_DONE, 50, 250000); 900 if (ret < 0) { 901 dev_warn(csi->dev, "MIPI calibration timeout!\n"); 902 goto exit; 903 } 904 905 /* clear status */ 906 tegra20_mipi_write(mipi, TEGRA_CSI_CSI_CIL_STATUS, value); 907 ret = readl_relaxed_poll_timeout(cil_status_reg, value, 908 !(value & CSI_MIPI_AUTO_CAL_DONE), 50, 250000); > 909 if (ret < 0) { 910 dev_warn(csi->dev, "MIPI calibration status timeout!\n"); 911 goto exit; 912 } 913 914 pp = tegra20_mipi_read(mipi, TEGRA_CSI_CSI_PIXEL_PARSER_STATUS); 915 cil = tegra20_mipi_read(mipi, TEGRA_CSI_CSI_CIL_STATUS); 916 if (pp | cil) { 917 dev_warn(csi->dev, "Calibration status not been cleared!\n"); 918 ret = -EINVAL; 919 goto exit; 920 } 921 922 exit: 923 tegra20_mipi_write(mipi, TEGRA_CSI_CSI_CIL_STATUS, pp); 924 925 /* un-select to avoid interference with DSI */ 926 tegra20_mipi_write(mipi, TEGRA_CSI_CILB_MIPI_CAL_CONFIG, 927 CSI_CIL_MIPI_CAL_HSPDOS(0) | 928 CSI_CIL_MIPI_CAL_HSPUOS(0) | 929 CSI_CIL_MIPI_CAL_TERMOS(4)); 930 931 tegra20_mipi_write(mipi, TEGRA_CSI_CILA_MIPI_CAL_CONFIG, 932 CSI_CIL_MIPI_CAL_NOISE_FLT(0xa) | 933 CSI_CIL_MIPI_CAL_PRESCALE(0x2) | 934 CSI_CIL_MIPI_CAL_HSPDOS(0) | 935 CSI_CIL_MIPI_CAL_HSPUOS(0) | 936 CSI_CIL_MIPI_CAL_TERMOS(4)); 937 938 pm_runtime_put(csi->dev); 939 940 return ret; 941 } 942 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
