From patchwork Fri Sep 18 05:19:19 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joonsoo Kim X-Patchwork-Id: 7212901 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 60AADBEEC1 for ; Fri, 18 Sep 2015 05:20:16 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8D94A204EC for ; Fri, 18 Sep 2015 05:20:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3E7E2208CF for ; Fri, 18 Sep 2015 05:20:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752318AbbIRFUC (ORCPT ); Fri, 18 Sep 2015 01:20:02 -0400 Received: from mail-pa0-f47.google.com ([209.85.220.47]:34084 "EHLO mail-pa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752288AbbIRFUA (ORCPT ); Fri, 18 Sep 2015 01:20:00 -0400 Received: by padhy16 with SMTP id hy16so40382896pad.1; Thu, 17 Sep 2015 22:20:00 -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=qpR9TH2NmNJHTn8WqbBfCnpdYqtsilItGQivDJ64AYI=; b=tBqClBYQQs7vaie8ZsqNryXUGlW9VUEcD7VKwhuCSffYJz89Qg0NhRlz6z+GS5m5Lx TTSliHWTFHQCHALeEf3JI9nJoya8cFM5Y/oMJAwCL5MBGv5g9ZB0gSAos0SjBC0uAYPL uu6Y6xgghzirbET3sZvWfCy8wcM2kqjt4S6l2uQ1IKh8M24yPTuAS5UNd3AvHG2zsVFi Ki4CciOPriD0xWAH9R+eTdC1/5wSf1DwxOzNKRqmzvyiNwuW8aIIj1GrNj5NxeulX293 Fiaz/7r46uNe1G2erH8zDldftQhnBufDwdiJlnG5YI2DK+KhP7cxNNMnuJESG3lQcBp/ ODpQ== X-Received: by 10.66.218.135 with SMTP id pg7mr4940569pac.141.1442553600348; Thu, 17 Sep 2015 22:20:00 -0700 (PDT) Received: from localhost.localdomain ([119.69.155.252]) by smtp.gmail.com with ESMTPSA id bi2sm6443526pbb.45.2015.09.17.22.19.57 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 17 Sep 2015 22:19:59 -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 4/9] crypto/lz4hc: support decompress_noctx Date: Fri, 18 Sep 2015 14:19:19 +0900 Message-Id: <1442553564-3476-5-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 lz4hc'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/lz4hc.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/crypto/lz4hc.c b/crypto/lz4hc.c index 0cb38a7..0797065 100644 --- a/crypto/lz4hc.c +++ b/crypto/lz4hc.c @@ -76,6 +76,12 @@ static int lz4hc_decompress_crypto(struct crypto_tfm *tfm, const u8 *src, return err; } +static int lz4hc_decompress_noctx(const u8 *src, unsigned int slen, + u8 *dst, unsigned int *dlen) +{ + return lz4hc_decompress_crypto(NULL, src, slen, dst, dlen); +} + static struct crypto_alg alg_lz4hc = { .cra_name = "lz4hc", .cra_flags = CRYPTO_ALG_TYPE_COMPRESS, @@ -87,7 +93,7 @@ static struct crypto_alg alg_lz4hc = { .cra_u = { .compress = { .coa_compress = lz4hc_compress_crypto, .coa_decompress = lz4hc_decompress_crypto, - .coa_decompress_noctx = NULL } } + .coa_decompress_noctx = lz4hc_decompress_noctx } } }; static int __init lz4hc_mod_init(void)