crypto: artpec6 - use crypto_shash_tfm_digest()

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: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Lars Persson <lars.persson@axis.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/axis/artpec6_crypto.c b/drivers/crypto/axis/artpec6_crypto.c
index fcf1eff..62ba032 100644 (file)
--- a/drivers/crypto/axis/artpec6_crypto.c
+++ b/drivers/crypto/axis/artpec6_crypto.c
@@ -2239,16 +2239,12 @@ artpec6_crypto_hash_set_key(struct crypto_ahash *tfm,
        blocksize = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
 
        if (keylen > blocksize) {
-               SHASH_DESC_ON_STACK(hdesc, tfm_ctx->child_hash);
-
-               hdesc->tfm = tfm_ctx->child_hash;
-
                tfm_ctx->hmac_key_length = blocksize;
-               ret = crypto_shash_digest(hdesc, key, keylen,
-                                         tfm_ctx->hmac_key);
+
+               ret = crypto_shash_tfm_digest(tfm_ctx->child_hash, key, keylen,
+                                             tfm_ctx->hmac_key);
                if (ret)
                        return ret;
-
        } else {
                memcpy(tfm_ctx->hmac_key, key, keylen);
                tfm_ctx->hmac_key_length = keylen;