Hi Cyan, kernel test robot noticed the following build warnings: [auto build test WARNING on robh/for-next] [also build test WARNING on linus/master v6.15-rc5 next-20250507] [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/Cyan-Yang/dt-bindings-riscv-Add-xsfvqmaccdod-and-xsfvqmaccqoq-ISA-extension-description/20250418-133832 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20250418053239.4351-3-cyan.yang%40sifive.com patch subject: [PATCH 02/12] riscv: Add SiFive xsfvqmaccdod and xsfvqmaccqoq vendor extensions config: riscv-randconfig-r112-20250426 (https://download.01.org/0day-ci/archive/20250507/202505072100.TZlEp8h1-lkp@xxxxxxxxx/config) compiler: riscv64-linux-gcc (GCC) 8.5.0 reproduce: (https://download.01.org/0day-ci/archive/20250507/202505072100.TZlEp8h1-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/202505072100.TZlEp8h1-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> arch/riscv/kernel/vendor_extensions/sifive.c:11:33: sparse: sparse: symbol 'riscv_isa_vendor_ext_sifive' was not declared. Should it be static? vim +/riscv_isa_vendor_ext_sifive +11 arch/riscv/kernel/vendor_extensions/sifive.c 9 10 /* All SiFive vendor extensions supported in Linux */ > 11 const struct riscv_isa_ext_data riscv_isa_vendor_ext_sifive[] = { 12 __RISCV_ISA_EXT_DATA(xsfvqmaccdod, RISCV_ISA_VENDOR_EXT_XSFVQMACCDOD), 13 __RISCV_ISA_EXT_DATA(xsfvqmaccqoq, RISCV_ISA_VENDOR_EXT_XSFVQMACCQOQ), 14 }; 15 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki