Hi James, I love your patch! Perhaps something to improve: [auto build test WARNING on arm64/for-next/core] [also build test WARNING on robh/for-next arm/for-next arm/fixes kvmarm/next soc/for-next linus/master v6.3-rc4 next-20230330] [cannot apply to xilinx-xlnx/master] [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/James-Morse/dt-bindings-firmware-Add-arm-errata-management/20230331-005505 base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core patch link: https://lore.kernel.org/r/20230330165128.3237939-6-james.morse%40arm.com patch subject: [PATCH 5/6] firmware: smccc: Allow errata management to be overridden by device tree config: arm64-randconfig-r032-20230329 (https://download.01.org/0day-ci/archive/20230331/202303310444.3JHIsByA-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/79e2d2cd6684ebd4e8c4787905486b63301117a9 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review James-Morse/dt-bindings-firmware-Add-arm-errata-management/20230331-005505 git checkout 79e2d2cd6684ebd4e8c4787905486b63301117a9 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/firmware/smccc/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303310444.3JHIsByA-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/firmware/smccc/em.c:142:5: warning: no previous prototype for 'arm_smccc_em_dt_alloc_tbl_entry' [-Wmissing-prototypes] 142 | int arm_smccc_em_dt_alloc_tbl_entry(struct device_node *np, const char *name, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/arm_smccc_em_dt_alloc_tbl_entry +142 drivers/firmware/smccc/em.c 141 > 142 int arm_smccc_em_dt_alloc_tbl_entry(struct device_node *np, const char *name, 143 struct arm_em_dt_supplement_array *entry) 144 { 145 int ret = of_property_count_u32_elems(np, name); 146 147 if (ret <= 0) 148 return 0; 149 if (ret > ARRAY_SIZE(entry->val)) 150 return -E2BIG; 151 152 entry->num = ret; 153 return of_property_read_u32_array(np, name, entry->val, entry->num); 154 } 155 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests