Hi Rohan, Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on v5.18] [also build test WARNING 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-allyesconfig (https://download.01.org/0day-ci/archive/20220601/202206011624.srj0dsyf-...@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/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <l...@intel.com> All 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: warning: no previous >> prototype for 'sys_switch_endian' [-Wmissing-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) | ^~~~~~~~~~~~~~~ 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