From patchwork Thu Aug 24 14:18:51 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gilad Ben-Yossef X-Patchwork-Id: 9920367 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id F0BB260349 for ; Thu, 24 Aug 2017 14:29:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E4E132891A for ; Thu, 24 Aug 2017 14:29:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D8E5E28B48; Thu, 24 Aug 2017 14:29:09 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6058D28927 for ; Thu, 24 Aug 2017 14:29:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753344AbdHXOUT (ORCPT ); Thu, 24 Aug 2017 10:20:19 -0400 Received: from foss.arm.com ([217.140.101.70]:41774 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752358AbdHXOUP (ORCPT ); Thu, 24 Aug 2017 10:20:15 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3C59616EA; Thu, 24 Aug 2017 07:20:15 -0700 (PDT) Received: from gby.kfn.arm.com (unknown [10.45.48.132]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 407A83F540; Thu, 24 Aug 2017 07:20:07 -0700 (PDT) From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" , Jonathan Corbet , David Howells , Tom Lendacky , Gary Hook , Boris Brezillon , Arnaud Ebalard , Matthias Brugger , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Shaohua Li , Steve French , "Theodore Y. Ts'o" , Jaegeuk Kim , Mimi Zohar , Dmitry Kasatkin , James Morris , "Serge E. Hallyn" , linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-raid@vger.kernel.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, linux-ima-devel@lists.sourceforge.net, linux-ima-user@lists.sourceforge.net, linux-security-module@vger.kernel.org Cc: Ofir Drang Subject: [PATCH v7 04/19] crypto: marvell/cesa: remove redundant backlog checks on EBUSY Date: Thu, 24 Aug 2017 17:18:51 +0300 Message-Id: <1503584350-7831-5-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1503584350-7831-1-git-send-email-gilad@benyossef.com> References: <1503584350-7831-1-git-send-email-gilad@benyossef.com> Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: X-Virus-Scanned: ClamAV using ClamSMTP Now that -EBUSY return code only indicates backlog queueing we can safely remove the now redundant check for the CRYPTO_TFM_REQ_MAY_BACKLOG flag when -EBUSY is returned. Signed-off-by: Gilad Ben-Yossef Acked-by: Boris Brezillon --- drivers/crypto/marvell/cesa.c | 3 +-- drivers/crypto/marvell/cesa.h | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/crypto/marvell/cesa.c b/drivers/crypto/marvell/cesa.c index 6e7a5c7..0c3909d 100644 --- a/drivers/crypto/marvell/cesa.c +++ b/drivers/crypto/marvell/cesa.c @@ -183,8 +183,7 @@ int mv_cesa_queue_req(struct crypto_async_request *req, spin_lock_bh(&engine->lock); ret = crypto_enqueue_request(&engine->queue, req); if ((mv_cesa_req_get_type(creq) == CESA_DMA_REQ) && - (ret == -EINPROGRESS || - (ret == -EBUSY && req->flags & CRYPTO_TFM_REQ_MAY_BACKLOG))) + (ret == -EINPROGRESS || ret == -EBUSY)) mv_cesa_tdma_chain(engine, creq); spin_unlock_bh(&engine->lock); diff --git a/drivers/crypto/marvell/cesa.h b/drivers/crypto/marvell/cesa.h index b7872f6..63c8457 100644 --- a/drivers/crypto/marvell/cesa.h +++ b/drivers/crypto/marvell/cesa.h @@ -763,7 +763,7 @@ static inline int mv_cesa_req_needs_cleanup(struct crypto_async_request *req, * the backlog and will be processed later. There's no need to * clean it up. */ - if (ret == -EBUSY && req->flags & CRYPTO_TFM_REQ_MAY_BACKLOG) + if (ret == -EBUSY) return false; /* Request wasn't queued, we need to clean it up */