Hi Rohan, Thank you for the patch! Yet something to improve:
[auto build test ERROR on v5.18] [also build test ERROR on next-20220601] [cannot apply to powerpc/next scottwood/next] [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/intel-lab-lkp/linux/commits/Rohan-McLure/powerpc-Add-ZERO_GPRS-macros-for-register-clears/20220601-135400 base: 4b0986a3613c92f4ec1bdc7f60ec66fea135991f config: powerpc-allnoconfig (https://download.01.org/0day-ci/archive/20220601/202206011740.fugdnwnm-...@intel.com/config) compiler: powerpc-linux-gcc (GCC) 11.3.0 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/c3efdfac99806b0d7ef4ee781283404448addc69 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Rohan-McLure/powerpc-Add-ZERO_GPRS-macros-for-register-clears/20220601-135400 git checkout c3efdfac99806b0d7ef4ee781283404448addc69 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/kernel/ fs/ kernel/ mm/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <l...@intel.com> All error/warnings (new ones prefixed by >>): In file included from include/linux/syscalls.h:98, from arch/powerpc/kernel/syscalls.c:19: >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: error: no previous >> prototype for 'sys_switch_endian' [-Werror=missing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ arch/powerpc/kernel/syscalls.c:114:1: note: in expansion of macro 'SYSCALL_DEFINE0' 114 | SYSCALL_DEFINE0(switch_endian) | ^~~~~~~~~~~~~~~ cc1: all warnings being treated as errors -- kernel/fork.c:163:13: warning: no previous prototype for 'arch_release_task_struct' [-Wmissing-prototypes] 163 | void __weak arch_release_task_struct(struct task_struct *tsk) | ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/fork.c:854:20: warning: no previous prototype for 'arch_task_cache_init' [-Wmissing-prototypes] 854 | void __init __weak arch_task_cache_init(void) { } | ^~~~~~~~~~~~~~~~~~~~ In file included from include/linux/syscalls.h:98, from kernel/fork.c:55: >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_fork' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/fork.c:2695:1: note: in expansion of macro 'SYSCALL_DEFINE0' 2695 | SYSCALL_DEFINE0(fork) | ^~~~~~~~~~~~~~~ >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_vfork' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/fork.c:2711:1: note: in expansion of macro 'SYSCALL_DEFINE0' 2711 | SYSCALL_DEFINE0(vfork) | ^~~~~~~~~~~~~~~ -- In file included from include/linux/syscalls.h:98, from kernel/signal.c:30: >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_restart_syscall' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/signal.c:3004:1: note: in expansion of macro 'SYSCALL_DEFINE0' 3004 | SYSCALL_DEFINE0(restart_syscall) | ^~~~~~~~~~~~~~~ >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_sgetmask' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/signal.c:4568:1: note: in expansion of macro 'SYSCALL_DEFINE0' 4568 | SYSCALL_DEFINE0(sgetmask) | ^~~~~~~~~~~~~~~ >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_pause' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/signal.c:4607:1: note: in expansion of macro 'SYSCALL_DEFINE0' 4607 | SYSCALL_DEFINE0(pause) | ^~~~~~~~~~~~~~~ -- In file included from include/linux/compat.h:34, from kernel/sys.c:47: >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_getpid' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/sys.c:933:1: note: in expansion of macro 'SYSCALL_DEFINE0' 933 | SYSCALL_DEFINE0(getpid) | ^~~~~~~~~~~~~~~ >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_gettid' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/sys.c:939:1: note: in expansion of macro 'SYSCALL_DEFINE0' 939 | SYSCALL_DEFINE0(gettid) | ^~~~~~~~~~~~~~~ >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_getppid' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/sys.c:950:1: note: in expansion of macro 'SYSCALL_DEFINE0' 950 | SYSCALL_DEFINE0(getppid) | ^~~~~~~~~~~~~~~ >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_getuid' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/sys.c:961:1: note: in expansion of macro 'SYSCALL_DEFINE0' 961 | SYSCALL_DEFINE0(getuid) | ^~~~~~~~~~~~~~~ >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_geteuid' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/sys.c:967:1: note: in expansion of macro 'SYSCALL_DEFINE0' 967 | SYSCALL_DEFINE0(geteuid) | ^~~~~~~~~~~~~~~ >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_getgid' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/sys.c:973:1: note: in expansion of macro 'SYSCALL_DEFINE0' 973 | SYSCALL_DEFINE0(getgid) | ^~~~~~~~~~~~~~~ >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_getegid' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/sys.c:979:1: note: in expansion of macro 'SYSCALL_DEFINE0' 979 | SYSCALL_DEFINE0(getegid) | ^~~~~~~~~~~~~~~ >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_getpgrp' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/sys.c:1154:1: note: in expansion of macro 'SYSCALL_DEFINE0' 1154 | SYSCALL_DEFINE0(getpgrp) | ^~~~~~~~~~~~~~~ >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_setsid' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/sys.c:1233:1: note: in expansion of macro 'SYSCALL_DEFINE0' 1233 | SYSCALL_DEFINE0(setsid) | ^~~~~~~~~~~~~~~ -- In file included from include/linux/syscalls.h:98, from mm/mlock.c:19: >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_munlockall' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ mm/mlock.c:725:1: note: in expansion of macro 'SYSCALL_DEFINE0' 725 | SYSCALL_DEFINE0(munlockall) | ^~~~~~~~~~~~~~~ -- In file included from include/linux/syscalls.h:98, from fs/open.c:27: >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_vhangup' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ fs/open.c:1375:1: note: in expansion of macro 'SYSCALL_DEFINE0' 1375 | SYSCALL_DEFINE0(vhangup) | ^~~~~~~~~~~~~~~ -- In file included from include/linux/syscalls.h:98, from fs/sync.c:15: >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_sync' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ fs/sync.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE0' 111 | SYSCALL_DEFINE0(sync) | ^~~~~~~~~~~~~~~ -- kernel/sched/core.c:5235:20: warning: no previous prototype for 'task_sched_runtime' [-Wmissing-prototypes] 5235 | unsigned long long task_sched_runtime(struct task_struct *p) | ^~~~~~~~~~~~~~~~~~ In file included from include/linux/syscalls.h:98, from include/linux/syscalls_api.h:1, from kernel/sched/core.c:13: >> arch/powerpc/include/asm/syscall_wrapper.h:78:14: warning: no previous >> prototype for 'sys_sched_yield' [-Wmissing-prototypes] 78 | long sys_##sname(void) \ | ^~~~ kernel/sched/core.c:8150:1: note: in expansion of macro 'SYSCALL_DEFINE0' 8150 | SYSCALL_DEFINE0(sched_yield) | ^~~~~~~~~~~~~~~ kernel/sched/core.c:9426:13: warning: no previous prototype for 'sched_init_smp' [-Wmissing-prototypes] 9426 | void __init sched_init_smp(void) | ^~~~~~~~~~~~~~ kernel/sched/core.c:9454:13: warning: no previous prototype for 'sched_init' [-Wmissing-prototypes] 9454 | void __init sched_init(void) | ^~~~~~~~~~ vim +/sys_switch_endian +78 arch/powerpc/include/asm/syscall_wrapper.h 49 50 #define __SYSCALL_DEFINEx(x, name, ...) \ 51 asmlinkage long __powerpc_sys##name(const struct pt_regs *regs); \ 52 ALLOW_ERROR_INJECTION(__powerpc_sys##name, ERRNO); \ 53 long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ 54 static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ 55 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ 56 asmlinkage long __powerpc_sys##name(const struct pt_regs *regs) \ 57 { \ 58 return __se_sys##name(SC_POWERPC_REGS_TO_ARGS(x,__VA_ARGS__)); \ 59 } \ 60 long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ 61 { \ 62 return __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \ 63 } \ 64 static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ 65 { \ 66 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \ 67 __MAP(x,__SC_TEST,__VA_ARGS__); \ 68 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ 69 return ret; \ 70 } \ 71 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) 72 73 #define SYSCALL_DEFINE0(sname) \ 74 SYSCALL_METADATA(_##sname, 0); \ 75 long sys_##name(void); \ 76 asmlinkage long __powerpc_sys_##sname(const struct pt_regs *__unused); \ 77 ALLOW_ERROR_INJECTION(__powerpc_sys_##sname, ERRNO); \ > 78 long sys_##sname(void) \ 79 { \ 80 return __powerpc_sys_##sname(NULL); \ 81 } \ 82 asmlinkage long __powerpc_sys_##sname(const struct pt_regs *__unused) 83 -- 0-DAY CI Kernel Test Service https://01.org/lkp