Hi Petr, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] [also build test WARNING on linus/master v6.8-rc4 next-20240215] [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/Petr-Tesarik/sbm-SandBox-Mode-core-data-types-and-functions/20240214-193528 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20240214113035.2117-5-petrtesarik%40huaweicloud.com patch subject: [PATCH v1 4/5] sbm: SandBox Mode KUnit test suite config: mips-randconfig-r121-20240215 (https://download.01.org/0day-ci/archive/20240216/202402160907.r0qgAoRs-lkp@xxxxxxxxx/config) compiler: mips-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20240216/202402160907.r0qgAoRs-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/202402160907.r0qgAoRs-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> kernel/sbm_test.c:300:13: sparse: sparse: symbol 'static_bss' was not declared. Should it be static? vim +/static_bss +300 kernel/sbm_test.c 293 294 /************************************************************** 295 * Memory write to kernel BSS. 296 * 297 * Sandbox mode cannot write to kernel BSS. 298 */ 299 > 300 struct data static_bss; 301 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki