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path: root/drivers/crypto/nx/nx-aes-gcm.c
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Diffstat (limited to 'drivers/crypto/nx/nx-aes-gcm.c')
-rw-r--r--drivers/crypto/nx/nx-aes-gcm.c29
1 files changed, 10 insertions, 19 deletions
diff --git a/drivers/crypto/nx/nx-aes-gcm.c b/drivers/crypto/nx/nx-aes-gcm.c
index 7d3d67871270..19c6ed5baea4 100644
--- a/drivers/crypto/nx/nx-aes-gcm.c
+++ b/drivers/crypto/nx/nx-aes-gcm.c
@@ -166,8 +166,7 @@ static int nx_gca(struct nx_crypto_ctx *nx_ctx,
return rc;
}
-static int gmac(struct aead_request *req, struct blkcipher_desc *desc,
- unsigned int assoclen)
+static int gmac(struct aead_request *req, const u8 *iv, unsigned int assoclen)
{
int rc;
struct nx_crypto_ctx *nx_ctx =
@@ -190,7 +189,7 @@ static int gmac(struct aead_request *req, struct blkcipher_desc *desc,
nx_ctx->ap->databytelen/NX_PAGE_SIZE);
/* Copy IV */
- memcpy(csbcpb->cpb.aes_gcm.iv_or_cnt, desc->info, AES_BLOCK_SIZE);
+ memcpy(csbcpb->cpb.aes_gcm.iv_or_cnt, iv, AES_BLOCK_SIZE);
do {
/*
@@ -240,8 +239,7 @@ out:
return rc;
}
-static int gcm_empty(struct aead_request *req, struct blkcipher_desc *desc,
- int enc)
+static int gcm_empty(struct aead_request *req, const u8 *iv, int enc)
{
int rc;
struct nx_crypto_ctx *nx_ctx =
@@ -268,7 +266,7 @@ static int gcm_empty(struct aead_request *req, struct blkcipher_desc *desc,
len = AES_BLOCK_SIZE;
/* Encrypt the counter/IV */
- in_sg = nx_build_sg_list(nx_ctx->in_sg, (u8 *) desc->info,
+ in_sg = nx_build_sg_list(nx_ctx->in_sg, (u8 *) iv,
&len, nx_ctx->ap->sglen);
if (len != AES_BLOCK_SIZE)
@@ -285,7 +283,7 @@ static int gcm_empty(struct aead_request *req, struct blkcipher_desc *desc,
nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg);
rc = nx_hcall_sync(nx_ctx, &nx_ctx->op,
- desc->flags & CRYPTO_TFM_REQ_MAY_SLEEP);
+ req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP);
if (rc)
goto out;
atomic_inc(&(nx_ctx->stats->aes_ops));
@@ -313,7 +311,6 @@ static int gcm_aes_nx_crypt(struct aead_request *req, int enc,
crypto_aead_ctx(crypto_aead_reqtfm(req));
struct nx_gcm_rctx *rctx = aead_request_ctx(req);
struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
- struct blkcipher_desc desc;
unsigned int nbytes = req->cryptlen;
unsigned int processed = 0, to_process;
unsigned long irq_flags;
@@ -321,15 +318,14 @@ static int gcm_aes_nx_crypt(struct aead_request *req, int enc,
spin_lock_irqsave(&nx_ctx->lock, irq_flags);
- desc.info = rctx->iv;
/* initialize the counter */
- *(u32 *)(desc.info + NX_GCM_CTR_OFFSET) = 1;
+ *(u32 *)&rctx->iv[NX_GCM_CTR_OFFSET] = 1;
if (nbytes == 0) {
if (assoclen == 0)
- rc = gcm_empty(req, &desc, enc);
+ rc = gcm_empty(req, rctx->iv, enc);
else
- rc = gmac(req, &desc, assoclen);
+ rc = gmac(req, rctx->iv, assoclen);
if (rc)
goto out;
else
@@ -358,7 +354,7 @@ static int gcm_aes_nx_crypt(struct aead_request *req, int enc,
to_process = nbytes - processed;
csbcpb->cpb.aes_gcm.bit_length_data = nbytes * 8;
- rc = nx_build_sg_lists(nx_ctx, &desc, req->dst,
+ rc = nx_build_sg_lists(nx_ctx, rctx->iv, req->dst,
req->src, &to_process,
processed + req->assoclen,
csbcpb->cpb.aes_gcm.iv_or_cnt);
@@ -377,7 +373,7 @@ static int gcm_aes_nx_crypt(struct aead_request *req, int enc,
if (rc)
goto out;
- memcpy(desc.info, csbcpb->cpb.aes_gcm.out_cnt, AES_BLOCK_SIZE);
+ memcpy(rctx->iv, csbcpb->cpb.aes_gcm.out_cnt, AES_BLOCK_SIZE);
memcpy(csbcpb->cpb.aes_gcm.in_pat_or_aad,
csbcpb->cpb.aes_gcm.out_pat_or_mac, AES_BLOCK_SIZE);
memcpy(csbcpb->cpb.aes_gcm.in_s0,
@@ -471,11 +467,6 @@ static int gcm4106_aes_nx_decrypt(struct aead_request *req)
return gcm_aes_nx_crypt(req, 0, req->assoclen - 8);
}
-/* tell the block cipher walk routines that this is a stream cipher by
- * setting cra_blocksize to 1. Even using blkcipher_walk_virt_block
- * during encrypt/decrypt doesn't solve this problem, because it calls
- * blkcipher_walk_done under the covers, which doesn't use walk->blocksize,
- * but instead uses this tfm->blocksize. */
struct aead_alg nx_gcm_aes_alg = {
.base = {
.cra_name = "gcm(aes)",