compute_ecdh_secret
int compute_ecdh_secret(struct crypto_kpp *tfm, const u8 pair_public_key[64],
ret = compute_ecdh_secret(tfm, pub_b, dhkey_a);
ret = compute_ecdh_secret(tfm, pub_a, dhkey_b);
if (compute_ecdh_secret(tfm_ecdh, smp->remote_pk, smp->dhkey))