static bool error_tg_ok(unsigned int usersize, unsigned int kernsize,
			const char *msg, unsigned int msglen)
{
	return usersize == kernsize && strnlen(msg, msglen) < msglen;
}
static bool error_tg_ok(unsigned int usersize, unsigned int kernsize,
			const char *msg, unsigned int msglen)
{
	return usersize == kernsize && strnlen(msg, msglen) < msglen;
}