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Message-Id: <0fc02b533bd3c3422bec5856bc65bbb66ebf7b58.1690037578.git.christophe.jaillet@wanadoo.fr>
Date: Sat, 22 Jul 2023 16:53:58 +0200
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Horia Geantă <horia.geanta@....com>,
Pankaj Gupta <pankaj.gupta@....com>,
Gaurav Jain <gaurav.jain@....com>,
Herbert Xu <herbert@...dor.apana.org.au>,
"David S. Miller" <davem@...emloft.net>
Cc: linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
Christophe JAILLET <christophe.jaillet@...adoo.fr>,
linux-crypto@...r.kernel.org
Subject: [PATCH 1/2] crypto: caam - Use struct_size()
Use struct_size() instead of hand-writing it, when allocating a structure
with a flex array.
This is less verbose, more robust and more informative.
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
drivers/crypto/caam/caamhash.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index 80deb003f0a5..9e5924e24f2e 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -708,9 +708,8 @@ static struct ahash_edesc *ahash_edesc_alloc(struct ahash_request *req,
gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
GFP_KERNEL : GFP_ATOMIC;
struct ahash_edesc *edesc;
- unsigned int sg_size = sg_num * sizeof(struct sec4_sg_entry);
- edesc = kzalloc(sizeof(*edesc) + sg_size, flags);
+ edesc = kzalloc(struct_size(edesc, sec4_sg, sg_num), flags);
if (!edesc) {
dev_err(ctx->jrdev, "could not allocate extended descriptor\n");
return NULL;
--
2.34.1
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