[PATCH 2/4] crypto: rk3288 - use API helpers to setup fallback request

[PATCH 2/4] crypto: rk3288 - use API helpers to setup fallback request

[Ovidiu Panait]

Rather than setting up the fallback request by hand, use
ahash_request_set_callback() and ahash_request_set_crypt() API helpers
to properly setup the new request.

This also ensures that the completion callback is properly passed down
to the fallback algorithm, which avoids a crash with async fallbacks.

Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@gmail.com>
---
Cc: Corentin Labbe <clabbe@baylibre.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org

 drivers/crypto/rockchip/rk3288_crypto_ahash.c | 52 ++++++++++---------
 1 file changed, 27 insertions(+), 25 deletions(-)

diff --git a/drivers/crypto/rockchip/rk3288_crypto_ahash.c b/drivers/crypto/rockchip/rk3288_crypto_ahash.c
index 69d6019d8abc..d6928ebe9526 100644
--- a/drivers/crypto/rockchip/rk3288_crypto_ahash.c
+++ b/drivers/crypto/rockchip/rk3288_crypto_ahash.c
@@ -52,12 +52,11 @@ static int rk_ahash_digest_fb(struct ahash_request *areq)
 	algt->stat_fb++;
 
 	ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
-	rctx->fallback_req.base.flags = areq->base.flags &
-					CRYPTO_TFM_REQ_MAY_SLEEP;
-
-	rctx->fallback_req.nbytes = areq->nbytes;
-	rctx->fallback_req.src = areq->src;
-	rctx->fallback_req.result = areq->result;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   areq->base.complete, areq->base.data);
+	ahash_request_set_crypt(&rctx->fallback_req, areq->src, areq->result,
+				areq->nbytes);
 
 	return crypto_ahash_digest(&rctx->fallback_req);
 }
@@ -124,8 +123,9 @@ static int rk_ahash_init(struct ahash_request *req)
 	struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
 
 	ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
-	rctx->fallback_req.base.flags = req->base.flags &
-					CRYPTO_TFM_REQ_MAY_SLEEP;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   req->base.complete, req->base.data);
 
 	return crypto_ahash_init(&rctx->fallback_req);
 }
@@ -137,10 +137,10 @@ static int rk_ahash_update(struct ahash_request *req)
 	struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
 
 	ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
-	rctx->fallback_req.base.flags = req->base.flags &
-					CRYPTO_TFM_REQ_MAY_SLEEP;
-	rctx->fallback_req.nbytes = req->nbytes;
-	rctx->fallback_req.src = req->src;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   req->base.complete, req->base.data);
+	ahash_request_set_crypt(&rctx->fallback_req, req->src, NULL, req->nbytes);
 
 	return crypto_ahash_update(&rctx->fallback_req);
 }
@@ -152,9 +152,10 @@ static int rk_ahash_final(struct ahash_request *req)
 	struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
 
 	ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
-	rctx->fallback_req.base.flags = req->base.flags &
-					CRYPTO_TFM_REQ_MAY_SLEEP;
-	rctx->fallback_req.result = req->result;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   req->base.complete, req->base.data);
+	ahash_request_set_crypt(&rctx->fallback_req, NULL, req->result, 0);
 
 	return crypto_ahash_final(&rctx->fallback_req);
 }
@@ -166,12 +167,11 @@ static int rk_ahash_finup(struct ahash_request *req)
 	struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
 
 	ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
-	rctx->fallback_req.base.flags = req->base.flags &
-					CRYPTO_TFM_REQ_MAY_SLEEP;
-
-	rctx->fallback_req.nbytes = req->nbytes;
-	rctx->fallback_req.src = req->src;
-	rctx->fallback_req.result = req->result;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   req->base.complete, req->base.data);
+	ahash_request_set_crypt(&rctx->fallback_req, req->src, req->result,
+				req->nbytes);
 
 	return crypto_ahash_finup(&rctx->fallback_req);
 }
@@ -183,8 +183,9 @@ static int rk_ahash_import(struct ahash_request *req, const void *in)
 	struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
 
 	ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
-	rctx->fallback_req.base.flags = req->base.flags &
-					CRYPTO_TFM_REQ_MAY_SLEEP;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   req->base.complete, req->base.data);
 
 	return crypto_ahash_import(&rctx->fallback_req, in);
 }
@@ -196,8 +197,9 @@ static int rk_ahash_export(struct ahash_request *req, void *out)
 	struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
 
 	ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
-	rctx->fallback_req.base.flags = req->base.flags &
-					CRYPTO_TFM_REQ_MAY_SLEEP;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   req->base.complete, req->base.data);
 
 	return crypto_ahash_export(&rctx->fallback_req, out);
 }
-- 
2.48.1

[PATCH 3/4] crypto: sun8i-ss - use API helpers to setup fallback request

[Ovidiu Panait]

Rather than setting up the fallback request by hand, use
ahash_request_set_callback() and ahash_request_set_crypt() API helpers
to properly setup the new request.

This also ensures that the completion callback is properly passed down
to the fallback algorithm, which avoids a crash with async fallbacks.

Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@gmail.com>
---
Cc: Corentin Labbe <clabbe.montjoie@gmail.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: Samuel Holland <samuel@sholland.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-sunxi@lists.linux.dev

 .../crypto/allwinner/sun8i-ss/sun8i-ss-hash.c | 49 ++++++++++---------
 1 file changed, 27 insertions(+), 22 deletions(-)

diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
index 753f67a36dc5..8bc08089f044 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
@@ -150,7 +150,9 @@ int sun8i_ss_hash_init(struct ahash_request *areq)
 	memset(rctx, 0, sizeof(struct sun8i_ss_hash_reqctx));
 
 	ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
-	rctx->fallback_req.base.flags = areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   areq->base.complete, areq->base.data);
 
 	return crypto_ahash_init(&rctx->fallback_req);
 }
@@ -162,7 +164,9 @@ int sun8i_ss_hash_export(struct ahash_request *areq, void *out)
 	struct sun8i_ss_hash_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
 
 	ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
-	rctx->fallback_req.base.flags = areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   areq->base.complete, areq->base.data);
 
 	return crypto_ahash_export(&rctx->fallback_req, out);
 }
@@ -174,7 +178,9 @@ int sun8i_ss_hash_import(struct ahash_request *areq, const void *in)
 	struct sun8i_ss_hash_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
 
 	ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
-	rctx->fallback_req.base.flags = areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   areq->base.complete, areq->base.data);
 
 	return crypto_ahash_import(&rctx->fallback_req, in);
 }
@@ -186,9 +192,10 @@ int sun8i_ss_hash_final(struct ahash_request *areq)
 	struct sun8i_ss_hash_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
 
 	ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
-	rctx->fallback_req.base.flags = areq->base.flags &
-					CRYPTO_TFM_REQ_MAY_SLEEP;
-	rctx->fallback_req.result = areq->result;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   areq->base.complete, areq->base.data);
+	ahash_request_set_crypt(&rctx->fallback_req, NULL, areq->result, 0);
 
 	if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_SS_DEBUG)) {
 		struct ahash_alg *alg = crypto_ahash_alg(tfm);
@@ -212,10 +219,10 @@ int sun8i_ss_hash_update(struct ahash_request *areq)
 	struct sun8i_ss_hash_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
 
 	ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
-	rctx->fallback_req.base.flags = areq->base.flags &
-					CRYPTO_TFM_REQ_MAY_SLEEP;
-	rctx->fallback_req.nbytes = areq->nbytes;
-	rctx->fallback_req.src = areq->src;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   areq->base.complete, areq->base.data);
+	ahash_request_set_crypt(&rctx->fallback_req, areq->src, NULL, areq->nbytes);
 
 	return crypto_ahash_update(&rctx->fallback_req);
 }
@@ -227,12 +234,11 @@ int sun8i_ss_hash_finup(struct ahash_request *areq)
 	struct sun8i_ss_hash_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
 
 	ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
-	rctx->fallback_req.base.flags = areq->base.flags &
-					CRYPTO_TFM_REQ_MAY_SLEEP;
-
-	rctx->fallback_req.nbytes = areq->nbytes;
-	rctx->fallback_req.src = areq->src;
-	rctx->fallback_req.result = areq->result;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   areq->base.complete, areq->base.data);
+	ahash_request_set_crypt(&rctx->fallback_req, areq->src, areq->result,
+				areq->nbytes);
 
 	if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_SS_DEBUG)) {
 		struct ahash_alg *alg = crypto_ahash_alg(tfm);
@@ -256,12 +262,11 @@ static int sun8i_ss_hash_digest_fb(struct ahash_request *areq)
 	struct sun8i_ss_hash_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
 
 	ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
-	rctx->fallback_req.base.flags = areq->base.flags &
-					CRYPTO_TFM_REQ_MAY_SLEEP;
-
-	rctx->fallback_req.nbytes = areq->nbytes;
-	rctx->fallback_req.src = areq->src;
-	rctx->fallback_req.result = areq->result;
+	ahash_request_set_callback(&rctx->fallback_req,
+				   areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP,
+				   areq->base.complete, areq->base.data);
+	ahash_request_set_crypt(&rctx->fallback_req, areq->src, areq->result,
+				areq->nbytes);
 
 	if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_SS_DEBUG)) {
 		struct ahash_alg *alg = crypto_ahash_alg(tfm);
-- 
2.48.1

Re: [PATCH 3/4] crypto: sun8i-ss - use API helpers to setup fallback request

[Corentin Labbe]

Le Mon, Apr 07, 2025 at 03:36:03PM +0300, Ovidiu Panait a écrit :
> Rather than setting up the fallback request by hand, use
> ahash_request_set_callback() and ahash_request_set_crypt() API helpers
> to properly setup the new request.
> 
> This also ensures that the completion callback is properly passed down
> to the fallback algorithm, which avoids a crash with async fallbacks.
> 
> Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@gmail.com>
> ---
> Cc: Corentin Labbe <clabbe.montjoie@gmail.com>
> Cc: Chen-Yu Tsai <wens@csie.org>
> Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
> Cc: Samuel Holland <samuel@sholland.org>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-sunxi@lists.linux.dev
> 
Hello

Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com>

Thanks

Re: [PATCH 3/4] crypto: sun8i-ss - use API helpers to setup fallback request

[Corentin Labbe]

Le Mon, Apr 07, 2025 at 03:36:03PM +0300, Ovidiu Panait a écrit :
> Rather than setting up the fallback request by hand, use
> ahash_request_set_callback() and ahash_request_set_crypt() API helpers
> to properly setup the new request.
> 
> This also ensures that the completion callback is properly passed down
> to the fallback algorithm, which avoids a crash with async fallbacks.
> 
> Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@gmail.com>
> ---
> Cc: Corentin Labbe <clabbe.montjoie@gmail.com>
> Cc: Chen-Yu Tsai <wens@csie.org>
> Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
> Cc: Samuel Holland <samuel@sholland.org>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-sunxi@lists.linux.dev
> 

Herbert I acked but just saw some crash I didnt saw in first look.
Please wait a bit before merging, I verify what is the cause.

Regards

Re: [PATCH 3/4] crypto: sun8i-ss - use API helpers to setup fallback request

[Herbert Xu]

On Mon, Apr 07, 2025 at 03:36:03PM +0300, Ovidiu Panait wrote:
> Rather than setting up the fallback request by hand, use
> ahash_request_set_callback() and ahash_request_set_crypt() API helpers
> to properly setup the new request.
> 
> This also ensures that the completion callback is properly passed down
> to the fallback algorithm, which avoids a crash with async fallbacks.
> 
> Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@gmail.com>
> ---
> Cc: Corentin Labbe <clabbe.montjoie@gmail.com>
> Cc: Chen-Yu Tsai <wens@csie.org>
> Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
> Cc: Samuel Holland <samuel@sholland.org>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-sunxi@lists.linux.dev

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt