Hi, I love your patch! Perhaps something to improve: [auto build test WARNING on soc/for-next] [also build test WARNING on linus/master v6.0-rc3 next-20220901] [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/guoren-kernel-org/riscv-Add-GENERIC_ENTRY-IRQ_STACKS-support/20220904-003954 base: https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next config: riscv-allyesconfig (https://download.01.org/0day-ci/archive/20220904/202209040118.GmG1Lby1-lkp@xxxxxxxxx/config) compiler: riscv64-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/6ed1ef93b372116f7d4586b13bfd352e19453740 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review guoren-kernel-org/riscv-Add-GENERIC_ENTRY-IRQ_STACKS-support/20220904-003954 git checkout 6ed1ef93b372116f7d4586b13bfd352e19453740 # 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=riscv SHELL=/bin/bash arch/riscv/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> arch/riscv/kernel/irq.c:48:6: warning: no previous prototype for 'do_softirq_own_stack' [-Wmissing-prototypes] 48 | void do_softirq_own_stack(void) | ^~~~~~~~~~~~~~~~~~~~ arch/riscv/kernel/irq.c:74:25: warning: no previous prototype for 'handle_riscv_irq' [-Wmissing-prototypes] 74 | asmlinkage void noinstr handle_riscv_irq(struct pt_regs *regs) | ^~~~~~~~~~~~~~~~ arch/riscv/kernel/irq.c:85:25: warning: no previous prototype for 'do_riscv_irq' [-Wmissing-prototypes] 85 | asmlinkage void noinstr do_riscv_irq(struct pt_regs *regs) | ^~~~~~~~~~~~ vim +/do_softirq_own_stack +48 arch/riscv/kernel/irq.c 47 > 48 void do_softirq_own_stack(void) 49 { 50 ulong *sp = per_cpu(irq_stack_ptr, smp_processor_id()); 51 52 call_on_stack(NULL, sp, do_riscv_softirq, 0); 53 } 54 #endif /* CONFIG_PREEMPT_RT */ 55 -- 0-DAY CI Kernel Test Service https://01.org/lkp