Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1034492AbcJ2OMv (ORCPT ); Sat, 29 Oct 2016 10:12:51 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:49822 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031493AbcJ2Nwk (ORCPT ); Sat, 29 Oct 2016 09:52:40 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ard Biesheuvel , Herbert Xu Subject: [PATCH 4.8 058/125] crypto: arm/ghash-ce - add missing async import/export Date: Sat, 29 Oct 2016 09:49:36 -0400 Message-Id: <20161029134949.605058569@linuxfoundation.org> X-Mailer: git-send-email 2.10.1 In-Reply-To: <20161029134947.232372651@linuxfoundation.org> References: <20161029134947.232372651@linuxfoundation.org> User-Agent: quilt/0.64 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2125 Lines: 64 4.8-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ard Biesheuvel commit ed4767d612fd2c39e2c4c69eba484c1219dcddb6 upstream. Since commit 8996eafdcbad ("crypto: ahash - ensure statesize is non-zero"), all ahash drivers are required to implement import()/export(), and must have a non-zero statesize. Fix this for the ARM Crypto Extensions GHASH implementation. Fixes: 8996eafdcbad ("crypto: ahash - ensure statesize is non-zero") Signed-off-by: Ard Biesheuvel Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- arch/arm/crypto/ghash-ce-glue.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) --- a/arch/arm/crypto/ghash-ce-glue.c +++ b/arch/arm/crypto/ghash-ce-glue.c @@ -220,6 +220,27 @@ static int ghash_async_digest(struct aha } } +static int ghash_async_import(struct ahash_request *req, const void *in) +{ + struct ahash_request *cryptd_req = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm); + struct shash_desc *desc = cryptd_shash_desc(cryptd_req); + + desc->tfm = cryptd_ahash_child(ctx->cryptd_tfm); + desc->flags = req->base.flags; + + return crypto_shash_import(desc, in); +} + +static int ghash_async_export(struct ahash_request *req, void *out) +{ + struct ahash_request *cryptd_req = ahash_request_ctx(req); + struct shash_desc *desc = cryptd_shash_desc(cryptd_req); + + return crypto_shash_export(desc, out); +} + static int ghash_async_setkey(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen) { @@ -268,7 +289,10 @@ static struct ahash_alg ghash_async_alg .final = ghash_async_final, .setkey = ghash_async_setkey, .digest = ghash_async_digest, + .import = ghash_async_import, + .export = ghash_async_export, .halg.digestsize = GHASH_DIGEST_SIZE, + .halg.statesize = sizeof(struct ghash_desc_ctx), .halg.base = { .cra_name = "ghash", .cra_driver_name = "ghash-ce",