[kbuild-all] Re: [RESEND PATCH] sys_personality: Add optional arch hook arch_check_personality

Hi Wang, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on arm64/for-next/core] [also build test WARNING on linux/master v5.7] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Wang-ShaoBo/sys_personality-Add-... base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core config: arm64-randconfig-c021-20200608 (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): 31 | int arch_check_personality(unsigned int personality) | ^~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kernel/sys.c:42:17: warning: no previous prototype for '__arm64_sys_ni_syscall' [-Wmissing-prototypes] 42 | asmlinkage long __arm64_sys_ni_syscall(const struct pt_regs *__unused) | ^~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kernel/sys.c:55:35: warning: initialized field overwritten [-Woverride-init] 55 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ include/uapi/asm-generic/unistd.h:29:37: note: in expansion of macro '__SYSCALL' 29 | #define __SC_COMP(_nr, _sys, _comp) __SYSCALL(_nr, _sys) | ^~~~~~~~~ include/uapi/asm-generic/unistd.h:34:1: note: in expansion of macro '__SC_COMP' 34 | __SC_COMP(__NR_io_setup, sys_io_setup, compat_sys_io_setup) | ^~~~~~~~~ arch/arm64/kernel/sys.c:55:35: note: (near initialization for 'sys_call_table[0]') 55 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ include/uapi/asm-generic/unistd.h:29:37: note: in expansion of macro '__SYSCALL' 29 | #define __SC_COMP(_nr, _sys, _comp) __SYSCALL(_nr, _sys) | ^~~~~~~~~ include/uapi/asm-generic/unistd.h:34:1: note: in expansion of macro '__SC_COMP' 34 | __SC_COMP(__NR_io_setup, sys_io_setup, compat_sys_io_setup) | ^~~~~~~~~ arch/arm64/kernel/sys.c:55:35: warning: initialized field overwritten [-Woverride-init] 55 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ include/uapi/asm-generic/unistd.h:36:1: note: in expansion of macro '__SYSCALL' 36 | __SYSCALL(__NR_io_destroy, sys_io_destroy) | ^~~~~~~~~ arch/arm64/kernel/sys.c:55:35: note: (near initialization for 'sys_call_table[1]') 55 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ include/uapi/asm-generic/unistd.h:36:1: note: in expansion of macro '__SYSCALL' 36 | __SYSCALL(__NR_io_destroy, sys_io_destroy) | ^~~~~~~~~ arch/arm64/kernel/sys.c:55:35: warning: initialized field overwritten [-Woverride-init] 55 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ include/uapi/asm-generic/unistd.h:29:37: note: in expansion of macro '__SYSCALL' 29 | #define __SC_COMP(_nr, _sys, _comp) __SYSCALL(_nr, _sys) | ^~~~~~~~~ include/uapi/asm-generic/unistd.h:38:1: note: in expansion of macro '__SC_COMP' 38 | __SC_COMP(__NR_io_submit, sys_io_submit, compat_sys_io_submit) | ^~~~~~~~~ arch/arm64/kernel/sys.c:55:35: note: (near initialization for 'sys_call_table[2]') 55 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ include/uapi/asm-generic/unistd.h:29:37: note: in expansion of macro '__SYSCALL' 29 | #define __SC_COMP(_nr, _sys, _comp) __SYSCALL(_nr, _sys) | ^~~~~~~~~ include/uapi/asm-generic/unistd.h:38:1: note: in expansion of macro '__SC_COMP' 38 | __SC_COMP(__NR_io_submit, sys_io_submit, compat_sys_io_submit) | ^~~~~~~~~ arch/arm64/kernel/sys.c:55:35: warning: initialized field overwritten [-Woverride-init] 55 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ include/uapi/asm-generic/unistd.h:40:1: note: in expansion of macro '__SYSCALL' 40 | __SYSCALL(__NR_io_cancel, sys_io_cancel) | ^~~~~~~~~ arch/arm64/kernel/sys.c:55:35: note: (near initialization for 'sys_call_table[3]') 55 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ include/uapi/asm-generic/unistd.h:40:1: note: in expansion of macro '__SYSCALL' 40 | __SYSCALL(__NR_io_cancel, sys_io_cancel) | ^~~~~~~~~ arch/arm64/kernel/sys.c:55:35: warning: initialized field overwritten [-Woverride-init] 55 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ include/uapi/asm-generic/unistd.h:22:34: note: in expansion of macro '__SYSCALL' 22 | #define __SC_3264(_nr, _32, _64) __SYSCALL(_nr, _64) | ^~~~~~~~~ include/uapi/asm-generic/unistd.h:43:1: note: in expansion of macro '__SC_3264' 43 | __SC_3264(__NR_io_getevents, sys_io_getevents_time32, sys_io_getevents) | ^~~~~~~~~ arch/arm64/kernel/sys.c:55:35: note: (near initialization for 'sys_call_table[4]') 55 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ include/uapi/asm-generic/unistd.h:22:34: note: in expansion of macro '__SYSCALL' 22 | #define __SC_3264(_nr, _32, _64) __SYSCALL(_nr, _64) | ^~~~~~~~~ include/uapi/asm-generic/unistd.h:43:1: note: in expansion of macro '__SC_3264' 43 | __SC_3264(__NR_io_getevents, sys_io_getevents_time32, sys_io_getevents) | ^~~~~~~~~ arch/arm64/kernel/sys.c:55:35: warning: initialized field overwritten [-Woverride-init] 55 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ include/uapi/asm-generic/unistd.h:48:1: note: in expansion of macro '__SYSCALL' 48 | __SYSCALL(__NR_setxattr, sys_setxattr) | ^~~~~~~~~ arch/arm64/kernel/sys.c:55:35: note: (near initialization for 'sys_call_table[5]') 55 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ include/uapi/asm-generic/unistd.h:48:1: note: in expansion of macro '__SYSCALL' 48 | __SYSCALL(__NR_setxattr, sys_setxattr) | ^~~~~~~~~ arch/arm64/kernel/sys.c:55:35: warning: initialized field overwritten [-Woverride-init] 55 | #define __SYSCALL(nr, sym) [nr] = __arm64_##sym, | ^~~~~~~~ include/uapi/asm-generic/unistd.h:50:1: note: in expansion of macro '__SYSCALL' 50 | __SYSCALL(__NR_lsetxattr, sys_lsetxattr) vim +/arch_check_personality +31 arch/arm64/kernel/sys.c 30 32 { 33 if (personality(personality) == PER_LINUX32 && 34 !system_supports_32bit_el0()) 35 return -EINVAL; 36 37 return 0; 38 } 39 --- 0-DAY CI Kernel Test Service, Intel Corporation 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