linux-kernel - [PATCH 4/4] crypto: tegra - use API helpers to setup fallback request

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Message-ID: <20250407123604.2109561-4-ovidiu.panait.oss@gmail.com>
Date: Mon,  7 Apr 2025 15:36:04 +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>,
	Akhil R <akhilrajeev@...dia.com>,
	Thierry Reding <thierry.reding@...il.com>,
	Jonathan Hunter <jonathanh@...dia.com>,
	linux-tegra@...r.kernel.org
Subject: [PATCH 4/4] crypto: tegra - 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.

Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@...il.com>
---
Cc: Akhil R <akhilrajeev@...dia.com>
Cc: Thierry Reding <thierry.reding@...il.com>
Cc: Jonathan Hunter <jonathanh@...dia.com>
Cc: linux-tegra@...r.kernel.org

 drivers/crypto/tegra/tegra-se-hash.c | 52 +++++++++++++++-------------
 1 file changed, 27 insertions(+), 25 deletions(-)

diff --git a/drivers/crypto/tegra/tegra-se-hash.c b/drivers/crypto/tegra/tegra-se-hash.c
index 42d007b7af45..d09b4aaeecef 100644
--- a/drivers/crypto/tegra/tegra-se-hash.c
+++ b/drivers/crypto/tegra/tegra-se-hash.c
@@ -117,8 +117,9 @@ static int tegra_sha_fallback_init(struct ahash_request *req)
 	struct tegra_sha_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);
 }
@@ -130,10 +131,10 @@ static int tegra_sha_fallback_update(struct ahash_request *req)
 	struct tegra_sha_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);
 }
@@ -145,9 +146,10 @@ static int tegra_sha_fallback_final(struct ahash_request *req)
 	struct tegra_sha_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);
 }
@@ -159,12 +161,11 @@ static int tegra_sha_fallback_finup(struct ahash_request *req)
 	struct tegra_sha_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);
 }
@@ -176,12 +177,11 @@ static int tegra_sha_fallback_digest(struct ahash_request *req)
 	struct tegra_sha_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_digest(&rctx->fallback_req);
 }
@@ -193,8 +193,9 @@ static int tegra_sha_fallback_import(struct ahash_request *req, const void *in)
 	struct tegra_sha_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);
 }
@@ -206,8 +207,9 @@ static int tegra_sha_fallback_export(struct ahash_request *req, void *out)
 	struct tegra_sha_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