[v9,17/20] crypto: talitos: move to generic async completion
diff mbox series

Message ID 1508059209-25529-18-git-send-email-gilad@benyossef.com
State New
Headers show
Series
  • simplify crypto wait for async op
Related show

Commit Message

Gilad Ben-Yossef Oct. 15, 2017, 9:20 a.m. UTC
The talitos 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/talitos.c | 38 +++++---------------------------------
 1 file changed, 5 insertions(+), 33 deletions(-)

Comments

Christophe Leroy Oct. 17, 2017, 10:50 a.m. UTC | #1
Le 15/10/2017 à 11:20, Gilad Ben-Yossef a écrit :
> The talitos 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>

Tested-by: Christophe Leroy <christophe.leroy@c-s.fr>

> ---
>   drivers/crypto/talitos.c | 38 +++++---------------------------------
>   1 file changed, 5 insertions(+), 33 deletions(-)
> 
> diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
> index 5bd8191..9c80e0c 100644
> --- a/drivers/crypto/talitos.c
> +++ b/drivers/crypto/talitos.c
> @@ -2160,22 +2160,6 @@ static int ahash_import(struct ahash_request *areq, const void *in)
>   	return 0;
>   }
>   
> -struct keyhash_result {
> -	struct completion completion;
> -	int err;
> -};
> -
> -static void keyhash_complete(struct crypto_async_request *req, int err)
> -{
> -	struct keyhash_result *res = req->data;
> -
> -	if (err == -EINPROGRESS)
> -		return;
> -
> -	res->err = err;
> -	complete(&res->completion);
> -}
> -
>   static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen,
>   		   u8 *hash)
>   {
> @@ -2183,10 +2167,10 @@ static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen,
>   
>   	struct scatterlist sg[1];
>   	struct ahash_request *req;
> -	struct keyhash_result hresult;
> +	struct crypto_wait wait;
>   	int ret;
>   
> -	init_completion(&hresult.completion);
> +	crypto_init_wait(&wait);
>   
>   	req = ahash_request_alloc(tfm, GFP_KERNEL);
>   	if (!req)
> @@ -2195,25 +2179,13 @@ static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen,
>   	/* Keep tfm keylen == 0 during hash of the long key */
>   	ctx->keylen = 0;
>   	ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
> -				   keyhash_complete, &hresult);
> +				   crypto_req_done, &wait);
>   
>   	sg_init_one(&sg[0], key, keylen);
>   
>   	ahash_request_set_crypt(req, sg, hash, keylen);
> -	ret = crypto_ahash_digest(req);
> -	switch (ret) {
> -	case 0:
> -		break;
> -	case -EINPROGRESS:
> -	case -EBUSY:
> -		ret = wait_for_completion_interruptible(
> -			&hresult.completion);
> -		if (!ret)
> -			ret = hresult.err;
> -		break;
> -	default:
> -		break;
> -	}
> +	ret = crypto_wait_req(crypto_ahash_digest(req), &wait);
> +
>   	ahash_request_free(req);
>   
>   	return ret;
> 
--
To unsubscribe from this list: send the line "unsubscribe linux-cifs" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Patch
diff mbox series

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 5bd8191..9c80e0c 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -2160,22 +2160,6 @@  static int ahash_import(struct ahash_request *areq, const void *in)
 	return 0;
 }
 
-struct keyhash_result {
-	struct completion completion;
-	int err;
-};
-
-static void keyhash_complete(struct crypto_async_request *req, int err)
-{
-	struct keyhash_result *res = req->data;
-
-	if (err == -EINPROGRESS)
-		return;
-
-	res->err = err;
-	complete(&res->completion);
-}
-
 static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen,
 		   u8 *hash)
 {
@@ -2183,10 +2167,10 @@  static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen,
 
 	struct scatterlist sg[1];
 	struct ahash_request *req;
-	struct keyhash_result hresult;
+	struct crypto_wait wait;
 	int ret;
 
-	init_completion(&hresult.completion);
+	crypto_init_wait(&wait);
 
 	req = ahash_request_alloc(tfm, GFP_KERNEL);
 	if (!req)
@@ -2195,25 +2179,13 @@  static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen,
 	/* Keep tfm keylen == 0 during hash of the long key */
 	ctx->keylen = 0;
 	ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				   keyhash_complete, &hresult);
+				   crypto_req_done, &wait);
 
 	sg_init_one(&sg[0], key, keylen);
 
 	ahash_request_set_crypt(req, sg, hash, keylen);
-	ret = crypto_ahash_digest(req);
-	switch (ret) {
-	case 0:
-		break;
-	case -EINPROGRESS:
-	case -EBUSY:
-		ret = wait_for_completion_interruptible(
-			&hresult.completion);
-		if (!ret)
-			ret = hresult.err;
-		break;
-	default:
-		break;
-	}
+	ret = crypto_wait_req(crypto_ahash_digest(req), &wait);
+
 	ahash_request_free(req);
 
 	return ret;