sys_socketpair 426 include/linux/syscalls.h asmlinkage long sys_socketpair(int, int, int, int __user *); sys_socketpair 816 net/compat.c ret = sys_socketpair(a0, a1, a[2], compat_ptr(a[3])); sys_socketpair 2162 net/socket.c err = sys_socketpair(a0, a1, a[2], (int __user *)a[3]);