[v5,18/19] crypto: mediatek: move to generic async completion
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Message ID 1502724094-23305-19-git-send-email-gilad@benyossef.com
State Not Applicable
Headers show

Commit Message

Gilad Ben-Yossef Aug. 14, 2017, 3:21 p.m. UTC
The mediatek driver starts several async crypto ops and waits for their
completions. Move it over to generic code doing the same.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
---
 drivers/crypto/mediatek/mtk-aes.c | 31 +++++--------------------------
 1 file changed, 5 insertions(+), 26 deletions(-)

Comments

Ryder Lee Aug. 15, 2017, 5:13 a.m. UTC | #1
On Mon, 2017-08-14 at 18:21 +0300, Gilad Ben-Yossef wrote:
> The mediatek driver starts several async crypto ops and waits for their
> completions. Move it over to generic code doing the same.
> 
> Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
> ---

Acked-by: Ryder Lee <ryder.lee@mediatek.com>

>  drivers/crypto/mediatek/mtk-aes.c | 31 +++++--------------------------
>  1 file changed, 5 insertions(+), 26 deletions(-)
> 
> diff --git a/drivers/crypto/mediatek/mtk-aes.c b/drivers/crypto/mediatek/mtk-aes.c
> index 9e845e8..e2c7c95 100644
> --- a/drivers/crypto/mediatek/mtk-aes.c
> +++ b/drivers/crypto/mediatek/mtk-aes.c
> @@ -137,11 +137,6 @@ struct mtk_aes_gcm_ctx {
>  	struct crypto_skcipher *ctr;
>  };
>  
> -struct mtk_aes_gcm_setkey_result {
> -	int err;
> -	struct completion completion;
> -};
> -
>  struct mtk_aes_drv {
>  	struct list_head dev_list;
>  	/* Device list lock */
> @@ -936,17 +931,6 @@ static int mtk_aes_gcm_crypt(struct aead_request *req, u64 mode)
>  				    &req->base);
>  }
>  
> -static void mtk_gcm_setkey_done(struct crypto_async_request *req, int err)
> -{
> -	struct mtk_aes_gcm_setkey_result *result = req->data;
> -
> -	if (err == -EINPROGRESS)
> -		return;
> -
> -	result->err = err;
> -	complete(&result->completion);
> -}
> -
>  /*
>   * Because of the hardware limitation, we need to pre-calculate key(H)
>   * for the GHASH operation. The result of the encryption operation
> @@ -962,7 +946,7 @@ static int mtk_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key,
>  		u32 hash[4];
>  		u8 iv[8];
>  
> -		struct mtk_aes_gcm_setkey_result result;
> +		struct crypto_wait wait;
>  
>  		struct scatterlist sg[1];
>  		struct skcipher_request req;
> @@ -1002,22 +986,17 @@ static int mtk_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key,
>  	if (!data)
>  		return -ENOMEM;
>  
> -	init_completion(&data->result.completion);
> +	crypto_init_wait(&data->wait);
>  	sg_init_one(data->sg, &data->hash, AES_BLOCK_SIZE);
>  	skcipher_request_set_tfm(&data->req, ctr);
>  	skcipher_request_set_callback(&data->req, CRYPTO_TFM_REQ_MAY_SLEEP |
>  				      CRYPTO_TFM_REQ_MAY_BACKLOG,
> -				      mtk_gcm_setkey_done, &data->result);
> +				      crypto_req_done, &data->wait);
>  	skcipher_request_set_crypt(&data->req, data->sg, data->sg,
>  				   AES_BLOCK_SIZE, data->iv);
>  
> -	err = crypto_skcipher_encrypt(&data->req);
> -	if (err == -EINPROGRESS || err == -EBUSY) {
> -		err = wait_for_completion_interruptible(
> -			&data->result.completion);
> -		if (!err)
> -			err = data->result.err;
> -	}
> +	err = crypto_wait_req(crypto_skcipher_encrypt(&data->req),
> +			      &data->wait);
>  	if (err)
>  		goto out;
>  


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Patch
diff mbox

diff --git a/drivers/crypto/mediatek/mtk-aes.c b/drivers/crypto/mediatek/mtk-aes.c
index 9e845e8..e2c7c95 100644
--- a/drivers/crypto/mediatek/mtk-aes.c
+++ b/drivers/crypto/mediatek/mtk-aes.c
@@ -137,11 +137,6 @@  struct mtk_aes_gcm_ctx {
 	struct crypto_skcipher *ctr;
 };
 
-struct mtk_aes_gcm_setkey_result {
-	int err;
-	struct completion completion;
-};
-
 struct mtk_aes_drv {
 	struct list_head dev_list;
 	/* Device list lock */
@@ -936,17 +931,6 @@  static int mtk_aes_gcm_crypt(struct aead_request *req, u64 mode)
 				    &req->base);
 }
 
-static void mtk_gcm_setkey_done(struct crypto_async_request *req, int err)
-{
-	struct mtk_aes_gcm_setkey_result *result = req->data;
-
-	if (err == -EINPROGRESS)
-		return;
-
-	result->err = err;
-	complete(&result->completion);
-}
-
 /*
  * Because of the hardware limitation, we need to pre-calculate key(H)
  * for the GHASH operation. The result of the encryption operation
@@ -962,7 +946,7 @@  static int mtk_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key,
 		u32 hash[4];
 		u8 iv[8];
 
-		struct mtk_aes_gcm_setkey_result result;
+		struct crypto_wait wait;
 
 		struct scatterlist sg[1];
 		struct skcipher_request req;
@@ -1002,22 +986,17 @@  static int mtk_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key,
 	if (!data)
 		return -ENOMEM;
 
-	init_completion(&data->result.completion);
+	crypto_init_wait(&data->wait);
 	sg_init_one(data->sg, &data->hash, AES_BLOCK_SIZE);
 	skcipher_request_set_tfm(&data->req, ctr);
 	skcipher_request_set_callback(&data->req, CRYPTO_TFM_REQ_MAY_SLEEP |
 				      CRYPTO_TFM_REQ_MAY_BACKLOG,
-				      mtk_gcm_setkey_done, &data->result);
+				      crypto_req_done, &data->wait);
 	skcipher_request_set_crypt(&data->req, data->sg, data->sg,
 				   AES_BLOCK_SIZE, data->iv);
 
-	err = crypto_skcipher_encrypt(&data->req);
-	if (err == -EINPROGRESS || err == -EBUSY) {
-		err = wait_for_completion_interruptible(
-			&data->result.completion);
-		if (!err)
-			err = data->result.err;
-	}
+	err = crypto_wait_req(crypto_skcipher_encrypt(&data->req),
+			      &data->wait);
 	if (err)
 		goto out;