Re: [PATCH 07/25] crypto: s5p - switch to skcipher API

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Hi,

On 14.10.2019 14:18, Ard Biesheuvel wrote:
> Commit 7a7ffe65c8c5 ("crypto: skcipher - Add top-level skcipher interface")
> dated 20 august 2015 introduced the new skcipher API which is supposed to
> replace both blkcipher and ablkcipher. While all consumers of the API have
> been converted long ago, some producers of the ablkcipher remain, forcing
> us to keep the ablkcipher support routines alive, along with the matching
> code to expose [a]blkciphers via the skcipher API.
> 
> So switch this driver to the skcipher API, allowing us to finally drop the
> blkcipher code in the near future.
> 
> Cc: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> Cc: Vladimir Zapolskiy <vz@xxxxxxxxx>
> Cc: Kamil Konieczny <k.konieczny@xxxxxxxxxxxxxxxxxxx>
> Cc: linux-samsung-soc@xxxxxxxxxxxxxxx
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
> ---

There are comments for hash functions changed, see below.
With that fixed, you can add my

Reviewed-by: Kamil Konieczny <k.konieczny@xxxxxxxxxxx>
Tested-by: Kamil Konieczny <k.konieczny@xxxxxxxxxxx>

>  drivers/crypto/s5p-sss.c | 191 ++++++++++----------
>  1 file changed, 91 insertions(+), 100 deletions(-)
>  [...]
> diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
> index 010f1bb20dad..e6f1d4d5186c 100644
> --- a/drivers/crypto/s5p-sss.c
> +++ b/drivers/crypto/s5p-sss.c
> [...]
> @@ -660,7 +660,7 @@ static irqreturn_t s5p_aes_interrupt(int irq, void *dev_id)
>  {
>  	struct platform_device *pdev = dev_id;
>  	struct s5p_aes_dev *dev = platform_get_drvdata(pdev);
> -	struct ablkcipher_request *req;
> +	struct skcipher_request *req;
>  	int err_dma_tx = 0;
>  	int err_dma_rx = 0;
>  	int err_dma_hx = 0;

These two comments below should not be touched, they are for hash part.

> @@ -1208,7 +1208,7 @@ static int s5p_hash_prepare_sgs(struct s5p_hash_reqctx *ctx,
>   *
>   * Note 1: we can have update flag _and_ final flag at the same time.
>   * Note 2: we enter here when digcnt > BUFLEN (=HASH_BLOCK_SIZE) or
> - *	   either req->nbytes or ctx->bufcnt + req->nbytes is > BUFLEN or
> + *	   either req->cryptlen or ctx->bufcnt + req->cryptlen is > BUFLEN or
>   *	   we have final op
>   */
>  static int s5p_hash_prepare_request(struct ahash_request *req, bool update)
> @@ -1555,7 +1555,7 @@ static int s5p_hash_final_shash(struct ahash_request *req)
>   * s5p_hash_final() - close up hash and calculate digest
>   * @req:	AHASH request
>   *
> - * Note: in final req->src do not have any data, and req->nbytes can be
> + * Note: in final req->src do not have any data, and req->cryptlen can be
>   * non-zero.
>   *
>   * If there were no input data processed yet and the buffered hash data is
> [...]

-- 
Best regards,
Kamil Konieczny
Samsung R&D Institute Poland




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