[PATCH 7/9] crypto: sun8i-ce - pass task descriptor to cipher prepare/unprepare

[Ovidiu Panait <ovidiu.panait.oss@gmail.com>]

To remove some duplicated code, directly pass 'struct skcipher_request' and
'struct ce_task' pointers to sun8i_ce_cipher_{prepare,unprepare}.

Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@gmail.com>
---
 .../allwinner/sun8i-ce/sun8i-ce-cipher.c      | 33 +++++++------------
 1 file changed, 11 insertions(+), 22 deletions(-)

diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
index f63d21cd1e52..021614b65e39 100644
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
@@ -131,21 +131,19 @@ static int sun8i_ce_cipher_fallback(struct skcipher_request *areq)
 	return err;
 }
 
-static int sun8i_ce_cipher_prepare(struct crypto_engine *engine, void *async_req)
+static int sun8i_ce_cipher_prepare(struct skcipher_request *areq,
+				   struct ce_task *cet)
 {
-	struct skcipher_request *areq = container_of(async_req, struct skcipher_request, base);
 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
 	struct sun8i_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
 	struct sun8i_ce_dev *ce = op->ce;
 	struct sun8i_cipher_req_ctx *rctx = skcipher_request_ctx(areq);
 	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
 	struct sun8i_ce_alg_template *algt;
-	struct sun8i_ce_flow *chan;
-	struct ce_task *cet;
 	struct scatterlist *sg;
 	unsigned int todo, len, offset, ivsize;
 	u32 common, sym;
-	int flow, i;
+	int i;
 	int nr_sgs = 0;
 	int nr_sgd = 0;
 	int err = 0;
@@ -163,14 +161,9 @@ static int sun8i_ce_cipher_prepare(struct crypto_engine *engine, void *async_req
 	if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG))
 		algt->stat_req++;
 
-	flow = rctx->flow;
-
-	chan = &ce->chanlist[flow];
-
-	cet = chan->tl;
 	memset(cet, 0, sizeof(struct ce_task));
 
-	cet->t_id = cpu_to_le32(flow);
+	cet->t_id = cpu_to_le32(rctx->flow);
 	common = ce->variant->alg_cipher[algt->ce_algo_id];
 	common |= rctx->op_dir | CE_COMM_INT;
 	cet->t_common_ctl = cpu_to_le32(common);
@@ -314,24 +307,17 @@ static int sun8i_ce_cipher_prepare(struct crypto_engine *engine, void *async_req
 	return err;
 }
 
-static void sun8i_ce_cipher_unprepare(struct crypto_engine *engine,
-				      void *async_req)
+static void sun8i_ce_cipher_unprepare(struct skcipher_request *areq,
+				      struct ce_task *cet)
 {
-	struct skcipher_request *areq = container_of(async_req, struct skcipher_request, base);
 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
 	struct sun8i_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
 	struct sun8i_ce_dev *ce = op->ce;
 	struct sun8i_cipher_req_ctx *rctx = skcipher_request_ctx(areq);
-	struct sun8i_ce_flow *chan;
-	struct ce_task *cet;
 	unsigned int ivsize, offset;
 	int nr_sgs = rctx->nr_sgs;
 	int nr_sgd = rctx->nr_sgd;
-	int flow;
 
-	flow = rctx->flow;
-	chan = &ce->chanlist[flow];
-	cet = chan->tl;
 	ivsize = crypto_skcipher_ivsize(tfm);
 
 	if (areq->src == areq->dst) {
@@ -367,16 +353,19 @@ int sun8i_ce_cipher_do_one(struct crypto_engine *engine, void *areq)
 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
 	struct sun8i_cipher_tfm_ctx *ctx = crypto_skcipher_ctx(tfm);
 	struct sun8i_ce_dev *ce = ctx->ce;
+	struct sun8i_ce_flow *chan;
 	int err;
 
-	err = sun8i_ce_cipher_prepare(engine, areq);
+	chan = &ce->chanlist[rctx->flow];
+
+	err = sun8i_ce_cipher_prepare(req, chan->tl);
 	if (err)
 		return err;
 
 	err = sun8i_ce_run_task(ce, rctx->flow,
 				crypto_tfm_alg_name(req->base.tfm));
 
-	sun8i_ce_cipher_unprepare(engine, areq);
+	sun8i_ce_cipher_unprepare(req, chan->tl);
 
 	local_bh_disable();
 	crypto_finalize_skcipher_request(engine, req, err);
-- 
2.50.0