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crypto: caam - Use struct_size()

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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@wanadoo.fr>
Reviewed-by: Gaurav Jain <gaurav.jain@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Christophe JAILLET 2023-07-22 16:53:58 +02:00 committed by Herbert Xu
parent 81511798bd
commit 6df04505f3
1 changed files with 1 additions and 2 deletions
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3
drivers/crypto/caam/caamhash.c
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@ -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;