Function crypto_getreq

freebsd/opencrypto/crypto.c:1786–1796

}

struct cryptop *
crypto_getreq(crypto_session_t cses, int how)
{
	struct cryptop *crp;

	MPASS(how == M_WAITOK || how == M_NOWAIT);
	crp = uma_zalloc(cryptop_zone, how | M_ZERO);
	if (crp != NULL)
		_crypto_initreq(crp, cses);
	return (crp);
}

/*
 * Invoke the callback on behalf of the driver.