Hi Shawn, I love your patch! Perhaps something to improve: [auto build test WARNING on tip/irq/core] [also build test WARNING on robh/for-next linus/master v5.17-rc5 next-20220222] [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] url: https://github.com/0day-ci/linux/commits/Shawn-Guo/Add-Qualcomm-MPM-irqchip-driver-support/20220223-210123 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git d2206fcabdfaff3958ab67cc5b8f63257e57b889 config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20220224/202202240730.8ES2LbM6-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 11.2.0 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/0day-ci/linux/commit/17f8a23f57bf6d0177f6ef6f78237b37bd853e8d git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Shawn-Guo/Add-Qualcomm-MPM-irqchip-driver-support/20220223-210123 git checkout 17f8a23f57bf6d0177f6ef6f78237b37bd853e8d # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/irqchip/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/irqchip/qcom-mpm.c:210:21: warning: no previous prototype for 'get_mpm_gic_map' [-Wmissing-prototypes] 210 | struct mpm_gic_map *get_mpm_gic_map(struct qcom_mpm_priv *priv, int pin) | ^~~~~~~~~~~~~~~ vim +/get_mpm_gic_map +210 drivers/irqchip/qcom-mpm.c 209 > 210 struct mpm_gic_map *get_mpm_gic_map(struct qcom_mpm_priv *priv, int pin) 211 { 212 struct mpm_gic_map *maps = priv->maps; 213 int i; 214 215 for (i = 0; i < priv->map_cnt; i++) { 216 if (maps[i].pin == pin) 217 return &maps[i]; 218 } 219 220 return NULL; 221 } 222 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx