compat_sys_recvmsg   37 include/net/compat.h extern asmlinkage long compat_sys_recvmsg(int,struct compat_msghdr __user *,unsigned);
compat_sys_recvmsg  845 net/compat.c   		ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);