On 03/01/18 21:11, Corentin Labbe wrote:
> This patch convert the stm32-cryp driver to the new crypto engine API.
> Signed-off-by: Corentin Labbe <clabbe.montj...@gmail.com>
> ---
> drivers/crypto/stm32/stm32-cryp.c | 21 ++++++++++++++++-----
> 1 file changed, 16 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/crypto/stm32/stm32-cryp.c
> b/drivers/crypto/stm32/stm32-cryp.c
> index cf1dddbeaa2c..99e0473ef247 100644
> --- a/drivers/crypto/stm32/stm32-cryp.c
> +++ b/drivers/crypto/stm32/stm32-cryp.c
> @@ -91,6 +91,7 @@
> #define _walked_out (cryp->out_walk.offset -
> cryp->out_sg->offset)
>
> struct stm32_cryp_ctx {
> + struct crypto_engine_reqctx enginectx;
> struct stm32_cryp *cryp;
> int keylen;
> u32 key[AES_KEYSIZE_256 / sizeof(u32)];
> @@ -494,10 +495,20 @@ static int stm32_cryp_cpu_start(struct stm32_cryp *cryp)
> return 0;
> }
>
> +static int stm32_cryp_cipher_one_req(struct crypto_engine *engine,
> + void *areq);
Merge these 2 lines in a single one
> +static int stm32_cryp_prepare_cipher_req(struct crypto_engine *engine,
> + void *areq);
> +
> static int stm32_cryp_cra_init(struct crypto_tfm *tfm)
> {
> + struct stm32_cryp_ctx *ctx = crypto_tfm_ctx(tfm);
> +
> tfm->crt_ablkcipher.reqsize = sizeof(struct stm32_cryp_reqctx);
>
> + ctx->enginectx.op.do_one_request = stm32_cryp_cipher_one_req;
> + ctx->enginectx.op.prepare_request = stm32_cryp_prepare_cipher_req;
> + ctx->enginectx.op.unprepare_request = NULL;
> return 0;
> }
>
> @@ -695,14 +706,17 @@ static int stm32_cryp_prepare_req(struct crypto_engine
> *engine,
> }
>
> static int stm32_cryp_prepare_cipher_req(struct crypto_engine *engine,
> - struct ablkcipher_request *req)
> + void *areq)
> {
> + struct ablkcipher_request *req = container_of(areq, struct
> ablkcipher_request, base);
> 80 characters (CHECKPATCH)
> +
> return stm32_cryp_prepare_req(engine, req);
> }
>
> static int stm32_cryp_cipher_one_req(struct crypto_engine *engine,
> - struct ablkcipher_request *req)
> + void *areq)
Merge these 2 lines in a single one
> {
> + struct ablkcipher_request *req = container_of(areq, struct
> ablkcipher_request, base);
> 80 characters (CHECKPATCH)
> struct stm32_cryp_ctx *ctx = crypto_ablkcipher_ctx(
> crypto_ablkcipher_reqtfm(req));
> struct stm32_cryp *cryp = ctx->cryp;
> @@ -1104,9 +1118,6 @@ static int stm32_cryp_probe(struct platform_device
> *pdev)
> goto err_engine1;
> }
>
> - cryp->engine->prepare_cipher_request = stm32_cryp_prepare_cipher_req;
> - cryp->engine->cipher_one_request = stm32_cryp_cipher_one_req;
> -
> ret = crypto_engine_start(cryp->engine);
> if (ret) {
> dev_err(dev, "Could not start crypto engine\n");
