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sctp: use crypto_shash_tfm_digest()

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Instead of manually allocating a 'struct shash_desc' on the stack and
calling crypto_shash_digest(), switch to using the new helper function
crypto_shash_tfm_digest() which does this for us.

Cc: linux-sctp@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers
2020-05-01 22:31:20 -07:00
committed by Herbert Xu
parent ec0bf6edc4
commit 75b93c6354
2 changed files with 10 additions and 23 deletions
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10
net/sctp/auth.c
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@@ -741,14 +741,8 @@ void sctp_auth_calculate_hmac(const struct sctp_association *asoc,
if (crypto_shash_setkey(tfm, &asoc_key->data[0], asoc_key->len))
goto free;
{
SHASH_DESC_ON_STACK(desc, tfm);
desc->tfm = tfm;
crypto_shash_digest(desc, (u8 *)auth,
end - (unsigned char *)auth, digest);
shash_desc_zero(desc);
}
crypto_shash_tfm_digest(tfm, (u8 *)auth, end - (unsigned char *)auth,
digest);
free:
if (free_key)