From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-eopbgr140070.outbound.protection.outlook.com ([40.107.14.70]:64918 "EHLO EUR01-VE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727033AbgHGQW1 (ORCPT ); Fri, 7 Aug 2020 12:22:27 -0400 From: Andrei Botila Subject: [PATCH 17/22] crypto: chelsio - add check for xts input length equal to zero Date: Fri, 7 Aug 2020 19:20:05 +0300 Message-Id: <20200807162010.18979-18-andrei.botila@oss.nxp.com> In-Reply-To: <20200807162010.18979-1-andrei.botila@oss.nxp.com> References: <20200807162010.18979-1-andrei.botila@oss.nxp.com> Content-Type: text/plain MIME-Version: 1.0 Sender: linux-s390-owner@vger.kernel.org List-ID: To: Herbert Xu , "David S. Miller" Cc: linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, x86@kernel.org, linux-arm-kernel@axis.com, Andrei Botila , Ayush Sawal , Vinay Kumar Yadav , Rohit Maheshwari From: Andrei Botila Standardize the way input lengths equal to 0 are handled in all skcipher algorithms. All the algorithms return 0 for input lengths equal to zero. Cc: Ayush Sawal Cc: Vinay Kumar Yadav Cc: Rohit Maheshwari Signed-off-by: Andrei Botila --- drivers/crypto/chelsio/chcr_algo.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c index 13b908ea4873..e9746580870a 100644 --- a/drivers/crypto/chelsio/chcr_algo.c +++ b/drivers/crypto/chelsio/chcr_algo.c @@ -1372,8 +1372,12 @@ static int chcr_aes_encrypt(struct skcipher_request *req) int err; struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm)); struct chcr_context *ctx = c_ctx(tfm); + int subtype = get_cryptoalg_subtype(tfm); unsigned int cpu; + if (!req->cryptlen && subtype == CRYPTO_ALG_SUB_TYPE_XTS) + return 0; + cpu = get_cpu(); reqctx->txqidx = cpu % ctx->ntxq; reqctx->rxqidx = cpu % ctx->nrxq; -- 2.17.1