Hi Akhil, kernel test robot noticed the following build warnings: [auto build test WARNING on herbert-cryptodev-2.6/master] [also build test WARNING on herbert-crypto-2.6/master tegra/for-next linus/master v6.7 next-20240112] [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/Akhil-R/dt-bindings-crypto-Add-Tegra-Security-Engine/20240109-172454 base: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master patch link: https://lore.kernel.org/r/20240109091708.66977-4-akhilrajeev%40nvidia.com patch subject: [PATCH v3 3/5] crypto: tegra: Add Tegra Security Engine driver config: powerpc64-randconfig-r123-20240112 (https://download.01.org/0day-ci/archive/20240113/202401131257.8RjvB7OG-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce: (https://download.01.org/0day-ci/archive/20240113/202401131257.8RjvB7OG-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/202401131257.8RjvB7OG-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/crypto/tegra/tegra-se-key.c:20:1: sparse: sparse: symbol 'kslt_lock' was not declared. Should it be static? drivers/crypto/tegra/tegra-se-key.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/umh.h, include/linux/kmod.h, ...): include/linux/page-flags.h:242:46: sparse: sparse: self-comparison always evaluates to false vim +/kslt_lock +20 drivers/crypto/tegra/tegra-se-key.c 18 19 /* Mutex lock to guard keyslots */ > 20 DEFINE_MUTEX(kslt_lock); 21 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki