+ u8 *data, size_t data_len, u8 *mic,
+ size_t mic_len)
+ {
+- struct scatterlist sg[3];
+- struct aead_request *aead_req;
+- int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm);
+- u8 *__aad;
+- int err;
+-
+- if (data_len == 0)
+- return -EINVAL;
+-
+- aead_req = kzalloc(reqsize + CCM_AAD_LEN, GFP_ATOMIC);
+- if (!aead_req)
+- return -ENOMEM;
+-
+- __aad = (u8 *)aead_req + reqsize;
+- memcpy(__aad, aad, CCM_AAD_LEN);
+-
+- sg_init_table(sg, 3);
+- sg_set_buf(&sg[0], &__aad[2], be16_to_cpup((__be16 *)__aad));
+- sg_set_buf(&sg[1], data, data_len);
+- sg_set_buf(&sg[2], mic, mic_len);
+-
+- aead_request_set_tfm(aead_req, tfm);
+- aead_request_set_crypt(aead_req, sg, sg, data_len + mic_len, b_0);
+- aead_request_set_ad(aead_req, sg[0].length);