__NR_syscall_max 42 arch/um/kernel/skas/syscall.c if (syscall >= 0 && syscall <= __NR_syscall_max) __NR_syscall_max 27 arch/x86/entry/syscall_64.c asmlinkage const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = { __NR_syscall_max 32 arch/x86/entry/syscall_64.c [0 ... __NR_syscall_max] = &__x64_sys_ni_syscall, __NR_syscall_max 31 arch/x86/include/asm/syscall.h #define __NR_syscall_compat_max __NR_syscall_max __NR_syscall_max 65 arch/x86/kernel/asm-offsets_32.c DEFINE(__NR_syscall_max, sizeof(syscalls) - 1); __NR_syscall_max 94 arch/x86/kernel/asm-offsets_64.c DEFINE(__NR_syscall_max, sizeof(syscalls_64) - 1); __NR_syscall_max 42 arch/x86/um/sys_call_table_32.c [0 ... __NR_syscall_max] = &sys_ni_syscall, __NR_syscall_max 52 arch/x86/um/sys_call_table_64.c [0 ... __NR_syscall_max] = &sys_ni_syscall, __NR_syscall_max 98 arch/x86/um/user-offsets.c DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);