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Message-ID: <20250407123604.2109561-3-ovidiu.panait.oss@gmail.com>
Date: Mon, 7 Apr 2025 15:36:03 +0300
From: Ovidiu Panait <ovidiu.panait.oss@...il.com>
To: linux-crypto@...r.kernel.org,
herbert@...dor.apana.org.au
Cc: davem@...emloft.net,
linux-kernel@...r.kernel.org,
Ovidiu Panait <ovidiu.panait.oss@...il.com>,
Corentin Labbe <clabbe.montjoie@...il.com>,
Chen-Yu Tsai <wens@...e.org>,
Jernej Skrabec <jernej.skrabec@...il.com>,
Samuel Holland <samuel@...lland.org>,
linux-arm-kernel@...ts.infradead.org,
linux-sunxi@...ts.linux.dev
Subject: [PATCH 3/4] crypto: sun8i-ss - use API helpers to setup fallback request
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@...il.com>
---
Cc: Corentin Labbe <clabbe.montjoie@...il.com>
Cc: Chen-Yu Tsai <wens@...e.org>
Cc: Jernej Skrabec <jernej.skrabec@...il.com>
Cc: Samuel Holland <samuel@...lland.org>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-sunxi@...ts.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
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