From patchwork Thu Aug 24 14:18:50 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: 9920151 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 3C04660349 for ; Thu, 24 Aug 2017 14:21:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 32B8028A56 for ; Thu, 24 Aug 2017 14:21:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 24EF028BF8; Thu, 24 Aug 2017 14:21:21 +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=-2.6 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_LOW autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7E31628BF8 for ; Thu, 24 Aug 2017 14:21:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=Si0/HRucNPv92ZNYAzUM71tY7sToD7WHVkeHlIA8Nh8=; b=Q1k55vzra1N7TxpStnBwMOQV6g JhULtb3DXoHZ/lm60NEUFRkdla5Mg0/xhMm9geOtyWt63jQpuqfw2nWbHUPbuW0fvck53nuJjKqrk b7dyqtGvTaRsWu4+rlWSi244DtzngiM0CeGuGPUpA1otLskBy6uQl5WKkF8lKJi6Ta8rIi+DcxWMO dA5tKZDg6D4FPPlDTFnABS5EtTBiNGNFbSj/V/WvMbrTYosb3pEBZ0aY04SFHAIDanKtOSpKxE3VT 8qJbtRCxL4aNx0b9jdK83yDLZkeIyBLWX+/qnlTseBcrGALHx9AtZeh8/fGlQ1OHfEkW2PNsC9m6v luPFYziA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dkt0T-0006ma-Lu; Thu, 24 Aug 2017 14:21:13 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dkszc-0004oG-Lz; Thu, 24 Aug 2017 14:20:24 +0000 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 99CF416A0; Thu, 24 Aug 2017 07:20:02 -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 AF9C23F540; Thu, 24 Aug 2017 07:19:54 -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 Subject: [PATCH v7 03/19] crypto: remove redundant backlog checks on EBUSY Date: Thu, 24 Aug 2017 17:18:50 +0300 Message-Id: <1503584350-7831-4-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> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170824_072020_848766_63E37E3B X-CRM114-Status: UNSURE ( 8.70 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ofir Drang MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org 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 --- crypto/ahash.c | 12 +++--------- crypto/cts.c | 6 ++---- crypto/lrw.c | 8 ++------ crypto/rsa-pkcs1pad.c | 16 ++++------------ crypto/xts.c | 8 ++------ 5 files changed, 13 insertions(+), 37 deletions(-) diff --git a/crypto/ahash.c b/crypto/ahash.c index 5e8666e..3a35d67 100644 --- a/crypto/ahash.c +++ b/crypto/ahash.c @@ -334,9 +334,7 @@ static int ahash_op_unaligned(struct ahash_request *req, return err; err = op(req); - if (err == -EINPROGRESS || - (err == -EBUSY && (ahash_request_flags(req) & - CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err == -EINPROGRESS || err == -EBUSY) return err; ahash_restore_req(req, err); @@ -394,9 +392,7 @@ static int ahash_def_finup_finish1(struct ahash_request *req, int err) req->base.complete = ahash_def_finup_done2; err = crypto_ahash_reqtfm(req)->final(req); - if (err == -EINPROGRESS || - (err == -EBUSY && (ahash_request_flags(req) & - CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err == -EINPROGRESS || err == -EBUSY) return err; out: @@ -432,9 +428,7 @@ static int ahash_def_finup(struct ahash_request *req) return err; err = tfm->update(req); - if (err == -EINPROGRESS || - (err == -EBUSY && (ahash_request_flags(req) & - CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err == -EINPROGRESS || err == -EBUSY) return err; return ahash_def_finup_finish1(req, err); diff --git a/crypto/cts.c b/crypto/cts.c index 243f591..4773c18 100644 --- a/crypto/cts.c +++ b/crypto/cts.c @@ -136,8 +136,7 @@ static void crypto_cts_encrypt_done(struct crypto_async_request *areq, int err) goto out; err = cts_cbc_encrypt(req); - if (err == -EINPROGRESS || - (err == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (err == -EINPROGRESS || err == -EBUSY) return; out: @@ -229,8 +228,7 @@ static void crypto_cts_decrypt_done(struct crypto_async_request *areq, int err) goto out; err = cts_cbc_decrypt(req); - if (err == -EINPROGRESS || - (err == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (err == -EINPROGRESS || err == -EBUSY) return; out: diff --git a/crypto/lrw.c b/crypto/lrw.c index a8bfae4..695cea9 100644 --- a/crypto/lrw.c +++ b/crypto/lrw.c @@ -328,9 +328,7 @@ static int do_encrypt(struct skcipher_request *req, int err) crypto_skcipher_encrypt(subreq) ?: post_crypt(req); - if (err == -EINPROGRESS || - (err == -EBUSY && - req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (err == -EINPROGRESS || err == -EBUSY) return err; } @@ -380,9 +378,7 @@ static int do_decrypt(struct skcipher_request *req, int err) crypto_skcipher_decrypt(subreq) ?: post_crypt(req); - if (err == -EINPROGRESS || - (err == -EBUSY && - req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (err == -EINPROGRESS || err == -EBUSY) return err; } diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c index 407c64b..2908f93 100644 --- a/crypto/rsa-pkcs1pad.c +++ b/crypto/rsa-pkcs1pad.c @@ -279,9 +279,7 @@ static int pkcs1pad_encrypt(struct akcipher_request *req) req->dst, ctx->key_size - 1, req->dst_len); err = crypto_akcipher_encrypt(&req_ctx->child_req); - if (err != -EINPROGRESS && - (err != -EBUSY || - !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err != -EINPROGRESS && err != -EBUSY) return pkcs1pad_encrypt_sign_complete(req, err); return err; @@ -383,9 +381,7 @@ static int pkcs1pad_decrypt(struct akcipher_request *req) ctx->key_size); err = crypto_akcipher_decrypt(&req_ctx->child_req); - if (err != -EINPROGRESS && - (err != -EBUSY || - !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err != -EINPROGRESS && err != -EBUSY) return pkcs1pad_decrypt_complete(req, err); return err; @@ -440,9 +436,7 @@ static int pkcs1pad_sign(struct akcipher_request *req) req->dst, ctx->key_size - 1, req->dst_len); err = crypto_akcipher_sign(&req_ctx->child_req); - if (err != -EINPROGRESS && - (err != -EBUSY || - !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err != -EINPROGRESS && err != -EBUSY) return pkcs1pad_encrypt_sign_complete(req, err); return err; @@ -561,9 +555,7 @@ static int pkcs1pad_verify(struct akcipher_request *req) ctx->key_size); err = crypto_akcipher_verify(&req_ctx->child_req); - if (err != -EINPROGRESS && - (err != -EBUSY || - !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))) + if (err != -EINPROGRESS && err != -EBUSY) return pkcs1pad_verify_complete(req, err); return err; diff --git a/crypto/xts.c b/crypto/xts.c index d86c11a..af68012 100644 --- a/crypto/xts.c +++ b/crypto/xts.c @@ -269,9 +269,7 @@ static int do_encrypt(struct skcipher_request *req, int err) crypto_skcipher_encrypt(subreq) ?: post_crypt(req); - if (err == -EINPROGRESS || - (err == -EBUSY && - req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (err == -EINPROGRESS || err == -EBUSY) return err; } @@ -321,9 +319,7 @@ static int do_decrypt(struct skcipher_request *req, int err) crypto_skcipher_decrypt(subreq) ?: post_crypt(req); - if (err == -EINPROGRESS || - (err == -EBUSY && - req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (err == -EINPROGRESS || err == -EBUSY) return err; }