Hi Tianrui, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on kvm/queue] [also build test WARNING on linus/master v6.2-rc8] [cannot apply to kvm/linux-next next-20230214] [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/Tianrui-Zhao/LoongArch-KVM-Implement-kvm-module-related-interface/20230214-110506 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue patch link: https://lore.kernel.org/r/20230214025648.1898508-23-zhaotianrui%40loongson.cn patch subject: [PATCH v1 22/24] LoongArch: KVM: Implement vcpu world switch config: loongarch-allyesconfig (https://download.01.org/0day-ci/archive/20230214/202302141408.1hBkpMAf-lkp@xxxxxxxxx/config) 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/1adfa2faabc606d0813446b2d2111e04aa3d2828 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Tianrui-Zhao/LoongArch-KVM-Implement-kvm-module-related-interface/20230214-110506 git checkout 1adfa2faabc606d0813446b2d2111e04aa3d2828 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=loongarch olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=loongarch prepare 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/202302141408.1hBkpMAf-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): arch/loongarch/kernel/asm-offsets.c:17:6: warning: no previous prototype for 'output_ptreg_defines' [-Wmissing-prototypes] 17 | void output_ptreg_defines(void) | ^~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:64:6: warning: no previous prototype for 'output_task_defines' [-Wmissing-prototypes] 64 | void output_task_defines(void) | ^~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:79:6: warning: no previous prototype for 'output_thread_info_defines' [-Wmissing-prototypes] 79 | void output_thread_info_defines(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:95:6: warning: no previous prototype for 'output_thread_defines' [-Wmissing-prototypes] 95 | void output_thread_defines(void) | ^~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:138:6: warning: no previous prototype for 'output_thread_fpu_defines' [-Wmissing-prototypes] 138 | void output_thread_fpu_defines(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:178:6: warning: no previous prototype for 'output_mm_defines' [-Wmissing-prototypes] 178 | void output_mm_defines(void) | ^~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:210:6: warning: no previous prototype for 'output_sc_defines' [-Wmissing-prototypes] 210 | void output_sc_defines(void) | ^~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:218:6: warning: no previous prototype for 'output_signal_defines' [-Wmissing-prototypes] 218 | void output_signal_defines(void) | ^~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:256:6: warning: no previous prototype for 'output_smpboot_defines' [-Wmissing-prototypes] 256 | void output_smpboot_defines(void) | ^~~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:266:6: warning: no previous prototype for 'output_pbe_defines' [-Wmissing-prototypes] 266 | void output_pbe_defines(void) | ^~~~~~~~~~~~~~~~~~ >> arch/loongarch/kernel/asm-offsets.c:277:6: warning: no previous prototype for 'output_kvm_defines' [-Wmissing-prototypes] 277 | void output_kvm_defines(void) | ^~~~~~~~~~~~~~~~~~ -- arch/loongarch/kernel/asm-offsets.c:17:6: warning: no previous prototype for 'output_ptreg_defines' [-Wmissing-prototypes] 17 | void output_ptreg_defines(void) | ^~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:64:6: warning: no previous prototype for 'output_task_defines' [-Wmissing-prototypes] 64 | void output_task_defines(void) | ^~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:79:6: warning: no previous prototype for 'output_thread_info_defines' [-Wmissing-prototypes] 79 | void output_thread_info_defines(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:95:6: warning: no previous prototype for 'output_thread_defines' [-Wmissing-prototypes] 95 | void output_thread_defines(void) | ^~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:138:6: warning: no previous prototype for 'output_thread_fpu_defines' [-Wmissing-prototypes] 138 | void output_thread_fpu_defines(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:178:6: warning: no previous prototype for 'output_mm_defines' [-Wmissing-prototypes] 178 | void output_mm_defines(void) | ^~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:210:6: warning: no previous prototype for 'output_sc_defines' [-Wmissing-prototypes] 210 | void output_sc_defines(void) | ^~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:218:6: warning: no previous prototype for 'output_signal_defines' [-Wmissing-prototypes] 218 | void output_signal_defines(void) | ^~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:256:6: warning: no previous prototype for 'output_smpboot_defines' [-Wmissing-prototypes] 256 | void output_smpboot_defines(void) | ^~~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:266:6: warning: no previous prototype for 'output_pbe_defines' [-Wmissing-prototypes] 266 | void output_pbe_defines(void) | ^~~~~~~~~~~~~~~~~~ >> arch/loongarch/kernel/asm-offsets.c:277:6: warning: no previous prototype for 'output_kvm_defines' [-Wmissing-prototypes] 277 | void output_kvm_defines(void) | ^~~~~~~~~~~~~~~~~~ <stdin>:569:2: warning: #warning syscall fstat not implemented [-Wcpp] vim +/output_kvm_defines +277 arch/loongarch/kernel/asm-offsets.c 217 > 218 void output_signal_defines(void) 219 { 220 COMMENT("Linux signal numbers."); 221 DEFINE(_SIGHUP, SIGHUP); 222 DEFINE(_SIGINT, SIGINT); 223 DEFINE(_SIGQUIT, SIGQUIT); 224 DEFINE(_SIGILL, SIGILL); 225 DEFINE(_SIGTRAP, SIGTRAP); 226 DEFINE(_SIGIOT, SIGIOT); 227 DEFINE(_SIGABRT, SIGABRT); 228 DEFINE(_SIGFPE, SIGFPE); 229 DEFINE(_SIGKILL, SIGKILL); 230 DEFINE(_SIGBUS, SIGBUS); 231 DEFINE(_SIGSEGV, SIGSEGV); 232 DEFINE(_SIGSYS, SIGSYS); 233 DEFINE(_SIGPIPE, SIGPIPE); 234 DEFINE(_SIGALRM, SIGALRM); 235 DEFINE(_SIGTERM, SIGTERM); 236 DEFINE(_SIGUSR1, SIGUSR1); 237 DEFINE(_SIGUSR2, SIGUSR2); 238 DEFINE(_SIGCHLD, SIGCHLD); 239 DEFINE(_SIGPWR, SIGPWR); 240 DEFINE(_SIGWINCH, SIGWINCH); 241 DEFINE(_SIGURG, SIGURG); 242 DEFINE(_SIGIO, SIGIO); 243 DEFINE(_SIGSTOP, SIGSTOP); 244 DEFINE(_SIGTSTP, SIGTSTP); 245 DEFINE(_SIGCONT, SIGCONT); 246 DEFINE(_SIGTTIN, SIGTTIN); 247 DEFINE(_SIGTTOU, SIGTTOU); 248 DEFINE(_SIGVTALRM, SIGVTALRM); 249 DEFINE(_SIGPROF, SIGPROF); 250 DEFINE(_SIGXCPU, SIGXCPU); 251 DEFINE(_SIGXFSZ, SIGXFSZ); 252 BLANK(); 253 } 254 255 #ifdef CONFIG_SMP 256 void output_smpboot_defines(void) 257 { 258 COMMENT("Linux smp cpu boot offsets."); 259 OFFSET(CPU_BOOT_STACK, secondary_data, stack); 260 OFFSET(CPU_BOOT_TINFO, secondary_data, thread_info); 261 BLANK(); 262 } 263 #endif 264 265 #ifdef CONFIG_HIBERNATION 266 void output_pbe_defines(void) 267 { 268 COMMENT(" Linux struct pbe offsets. "); 269 OFFSET(PBE_ADDRESS, pbe, address); 270 OFFSET(PBE_ORIG_ADDRESS, pbe, orig_address); 271 OFFSET(PBE_NEXT, pbe, next); 272 DEFINE(PBE_SIZE, sizeof(struct pbe)); 273 BLANK(); 274 } 275 #endif 276 > 277 void output_kvm_defines(void) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
