static bool reg_type_not_null(enum bpf_reg_type type)
{
	return type == PTR_TO_SOCKET ||
		type == PTR_TO_TCP_SOCK ||
		type == PTR_TO_MAP_VALUE ||
		type == PTR_TO_MAP_KEY ||
		type == PTR_TO_SOCK_COMMON;
}
static bool reg_type_not_null(enum bpf_reg_type type)
{
	return type == PTR_TO_SOCKET ||
		type == PTR_TO_TCP_SOCK ||
		type == PTR_TO_MAP_VALUE ||
		type == PTR_TO_MAP_KEY ||
		type == PTR_TO_SOCK_COMMON;
}