Hi LeoLiu-oc, kernel test robot noticed the following build warnings: [auto build test WARNING on char-misc/char-misc-testing] [also build test WARNING on char-misc/char-misc-next char-misc/char-misc-linus herbert-cryptodev-2.6/master linus/master v6.7-rc6 next-20231222] [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/LeoLiu-oc/hwrng-add-Zhaoxin-rng-driver-base-on-rep_xstore-instruction/20231222-174625 base: char-misc/char-misc-testing patch link: https://lore.kernel.org/r/20231221062602.799432-1-LeoLiu-oc%40zhaoxin.com patch subject: [PATCH v3] hwrng: add Zhaoxin rng driver base on rep_xstore instruction config: i386-buildonly-randconfig-003-20231223 (https://download.01.org/0day-ci/archive/20231223/202312230731.XIJLqDeg-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/20231223/202312230731.XIJLqDeg-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/202312230731.XIJLqDeg-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/char/hw_random/via-rng.c:38:32: warning: tentative array definition assumed to have one element static const struct x86_cpu_id via_rng_cpu_ids[]; ^ >> drivers/char/hw_random/via-rng.c:220:26: warning: unused variable 'via_rng_cpu_id' [-Wunused-variable] static struct x86_cpu_id via_rng_cpu_id[] = { ^ 2 warnings generated. vim +/via_rng_cpu_id +220 drivers/char/hw_random/via-rng.c 219 > 220 static struct x86_cpu_id via_rng_cpu_id[] = { 221 X86_MATCH_VENDOR_FAM_FEATURE(CENTAUR, 6, X86_FEATURE_XSTORE, NULL), 222 {} 223 }; 224 MODULE_DEVICE_TABLE(x86cpu, via_rng_cpu_id); 225 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
