Hi Youling, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v6.0-rc6 next-20220923] [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/Youling-Tang/LoongArch-Use-generic-BUG-handler/20220922-190855 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git dc164f4fb00a0abebdfff132f8bc7291a28f5401 config: loongarch-randconfig-m041-20220925 compiler: loongarch64-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/233fbb60106526bdb7cb8496ff5d1c735b5c975e git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Youling-Tang/LoongArch-Use-generic-BUG-handler/20220922-190855 git checkout 233fbb60106526bdb7cb8496ff5d1c735b5c975e # 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=loongarch SHELL=/bin/bash arch/loongarch/kernel/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All warnings (new ones prefixed by >>): arch/loongarch/kernel/traps.c:213:6: warning: no previous prototype for 'show_registers' [-Wmissing-prototypes] 213 | void show_registers(struct pt_regs *regs) | ^~~~~~~~~~~~~~ arch/loongarch/kernel/traps.c:276:6: warning: no previous prototype for 'force_fcsr_sig' [-Wmissing-prototypes] 276 | void force_fcsr_sig(unsigned long fcsr, void __user *fault_addr, | ^~~~~~~~~~~~~~ arch/loongarch/kernel/traps.c:295:5: warning: no previous prototype for 'process_fpemu_return' [-Wmissing-prototypes] 295 | int process_fpemu_return(int sig, void __user *fault_addr, unsigned long fcsr) | ^~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/traps.c:330:25: warning: no previous prototype for 'do_fpe' [-Wmissing-prototypes] 330 | asmlinkage void noinstr do_fpe(struct pt_regs *regs, unsigned long fcsr) | ^~~~~~ arch/loongarch/kernel/traps.c:357:25: warning: no previous prototype for 'do_ade' [-Wmissing-prototypes] 357 | asmlinkage void noinstr do_ade(struct pt_regs *regs) | ^~~~~~ arch/loongarch/kernel/traps.c:367:25: warning: no previous prototype for 'do_ale' [-Wmissing-prototypes] 367 | asmlinkage void noinstr do_ale(struct pt_regs *regs) | ^~~~~~ >> arch/loongarch/kernel/traps.c:379:5: warning: no previous prototype for 'is_valid_bugaddr' [-Wmissing-prototypes] 379 | int is_valid_bugaddr(unsigned long addr) | ^~~~~~~~~~~~~~~~ arch/loongarch/kernel/traps.c:400:25: warning: no previous prototype for 'do_bp' [-Wmissing-prototypes] 400 | asmlinkage void noinstr do_bp(struct pt_regs *regs) | ^~~~~ arch/loongarch/kernel/traps.c:479:25: warning: no previous prototype for 'do_watch' [-Wmissing-prototypes] 479 | asmlinkage void noinstr do_watch(struct pt_regs *regs) | ^~~~~~~~ arch/loongarch/kernel/traps.c:484:25: warning: no previous prototype for 'do_ri' [-Wmissing-prototypes] 484 | asmlinkage void noinstr do_ri(struct pt_regs *regs) | ^~~~~ arch/loongarch/kernel/traps.c: In function 'do_ri': arch/loongarch/kernel/traps.c:487:22: warning: variable 'opcode' set but not used [-Wunused-but-set-variable] 487 | unsigned int opcode = 0; | ^~~~~~ arch/loongarch/kernel/traps.c: At top level: arch/loongarch/kernel/traps.c:537:25: warning: no previous prototype for 'do_fpu' [-Wmissing-prototypes] 537 | asmlinkage void noinstr do_fpu(struct pt_regs *regs) | ^~~~~~ arch/loongarch/kernel/traps.c:552:25: warning: no previous prototype for 'do_lsx' [-Wmissing-prototypes] 552 | asmlinkage void noinstr do_lsx(struct pt_regs *regs) | ^~~~~~ arch/loongarch/kernel/traps.c:563:25: warning: no previous prototype for 'do_lasx' [-Wmissing-prototypes] 563 | asmlinkage void noinstr do_lasx(struct pt_regs *regs) | ^~~~~~~ arch/loongarch/kernel/traps.c:574:25: warning: no previous prototype for 'do_lbt' [-Wmissing-prototypes] 574 | asmlinkage void noinstr do_lbt(struct pt_regs *regs) | ^~~~~~ arch/loongarch/kernel/traps.c:585:25: warning: no previous prototype for 'do_reserved' [-Wmissing-prototypes] 585 | asmlinkage void noinstr do_reserved(struct pt_regs *regs) | ^~~~~~~~~~~ arch/loongarch/kernel/traps.c:604:17: warning: no previous prototype for 'cache_parity_error' [-Wmissing-prototypes] 604 | asmlinkage void cache_parity_error(void) | ^~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/traps.c:613:25: warning: no previous prototype for 'handle_loongarch_irq' [-Wmissing-prototypes] 613 | asmlinkage void noinstr handle_loongarch_irq(struct pt_regs *regs) | ^~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/traps.c:624:25: warning: no previous prototype for 'do_vint' [-Wmissing-prototypes] 624 | asmlinkage void noinstr do_vint(struct pt_regs *regs, unsigned long sp) | ^~~~~~~ vim +/is_valid_bugaddr +379 arch/loongarch/kernel/traps.c 378 > 379 int is_valid_bugaddr(unsigned long addr) 380 { 381 return 1; 382 } 383 -- 0-DAY CI Kernel Test Service https://01.org/lkp