crypto: crypto4xx - Use crypto_ahash_set_reqsize

This patch makes crypto4xx use crypto_ahash_set_reqsize to avoid
accessing crypto_ahash directly.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/amcc/crypto4xx_alg.c

@@ -208,7 +208,8 @@ static int crypto4xx_hash_alg_init(struct crypto_tfm *tfm,
 		}
 	}
 
-	tfm->crt_ahash.reqsize = sizeof(struct crypto4xx_ctx);
+	crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+				 sizeof(struct crypto4xx_ctx));
 	sa = (struct dynamic_sa_ctl *) ctx->sa_in;
 	set_dynamic_sa_command_0(sa, SA_SAVE_HASH, SA_NOT_SAVE_IV,
 				 SA_NOT_LOAD_HASH, SA_LOAD_IV_FROM_SA,

drivers/crypto/amcc/crypto4xx_core.c

@@ -1001,7 +1001,8 @@ static int crypto4xx_alg_init(struct crypto_tfm *tfm)
 	if (alg->cra_type == &crypto_ablkcipher_type)
 		tfm->crt_ablkcipher.reqsize = sizeof(struct crypto4xx_ctx);
 	else if (alg->cra_type == &crypto_ahash_type)
-		tfm->crt_ahash.reqsize = sizeof(struct crypto4xx_ctx);
+		crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+					 sizeof(struct crypto4xx_ctx));
 
 	return 0;
 }