From patchwork Fri Sep 18 05:19:17 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joonsoo Kim X-Patchwork-Id: 7213041 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Original-To: patchwork-linux-crypto@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 54255BEEC1 for ; Fri, 18 Sep 2015 05:22:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5CB76208AB for ; Fri, 18 Sep 2015 05:22:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4196B208C2 for ; Fri, 18 Sep 2015 05:22:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752152AbbIRFT5 (ORCPT ); Fri, 18 Sep 2015 01:19:57 -0400 Received: from mail-pa0-f44.google.com ([209.85.220.44]:35248 "EHLO mail-pa0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752010AbbIRFTy (ORCPT ); Fri, 18 Sep 2015 01:19:54 -0400 Received: by pacfv12 with SMTP id fv12so40901602pac.2; Thu, 17 Sep 2015 22:19:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=/V12MjnTrbRIQ96GfBOuybGFpIaaaQqi5iizUnN1FFc=; b=lFG0otGJGVD0NLPcgj6SpUXwJB/jz3+myoURL7GJPptiJ8A1rP12JdegYS68zRU3y2 70zHgvegRUqstMEy0bRQ5pYqfP28D7G/ViRXBEFnT90E/zrmfqstXwFErz1tiz1GzbHh Jt+qxpOtfykWBfAJ54+3Oz6B8Lxu/dAGJXV3Le+q3I9ITXGyilShjId4lwqCpY8xR3zH fRTsW4SaU9ni9OlQ2T/C5iJ4Qnmpa+qYIOvHN5CcCrf2ThGVyIz7tgdOXBeN7Ds6Kqt0 LRz6mHpSiZyes10XAGfuktrqgLpYKue9zH8pQuXeRKJRkdp1Z1XQgqPlmlUOpt52KEDk y3Zw== X-Received: by 10.66.146.69 with SMTP id ta5mr5168285pab.46.1442553593772; Thu, 17 Sep 2015 22:19:53 -0700 (PDT) Received: from localhost.localdomain ([119.69.155.252]) by smtp.gmail.com with ESMTPSA id bi2sm6443526pbb.45.2015.09.17.22.19.50 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 17 Sep 2015 22:19:53 -0700 (PDT) From: Joonsoo Kim X-Google-Original-From: Joonsoo Kim To: Andrew Morton Cc: Minchan Kim , Nitin Gupta , Sergey Senozhatsky , linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, Herbert Xu , "David S. Miller" , Stephan Mueller , Joonsoo Kim Subject: [PATCH v3 2/9] crypto/lzo: support decompress_noctx Date: Fri, 18 Sep 2015 14:19:17 +0900 Message-Id: <1442553564-3476-3-git-send-email-iamjoonsoo.kim@lge.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1442553564-3476-1-git-send-email-iamjoonsoo.kim@lge.com> References: <1442553564-3476-1-git-send-email-iamjoonsoo.kim@lge.com> Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP lzo's decompression doesn't requires any scratch buffer so it doesn't need tfm context. Hence, it can support crypto compression noctx API and this patch implements it. Signed-off-by: Joonsoo Kim --- crypto/lzo.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/crypto/lzo.c b/crypto/lzo.c index ec0f7b3..3cc0ce7 100644 --- a/crypto/lzo.c +++ b/crypto/lzo.c @@ -80,6 +80,12 @@ static int lzo_decompress(struct crypto_tfm *tfm, const u8 *src, } +static int lzo_decompress_noctx(const u8 *src, unsigned int slen, + u8 *dst, unsigned int *dlen) +{ + return lzo_decompress(NULL, src, slen, dst, dlen); +} + static struct crypto_alg alg = { .cra_name = "lzo", .cra_flags = CRYPTO_ALG_TYPE_COMPRESS, @@ -90,7 +96,7 @@ static struct crypto_alg alg = { .cra_u = { .compress = { .coa_compress = lzo_compress, .coa_decompress = lzo_decompress, - .coa_decompress_noctx = NULL } } + .coa_decompress_noctx = lzo_decompress_noctx } } }; static int __init lzo_mod_init(void)