From patchwork Tue Jul 18 12:58:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ard Biesheuvel X-Patchwork-Id: 704172 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A7282EB64DC for ; Tue, 18 Jul 2023 13:01:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232555AbjGRNB4 (ORCPT ); Tue, 18 Jul 2023 09:01:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40106 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232548AbjGRNBD (ORCPT ); Tue, 18 Jul 2023 09:01:03 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 41BF61FE4; Tue, 18 Jul 2023 06:00:29 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D727161587; Tue, 18 Jul 2023 13:00:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DB974C433C8; Tue, 18 Jul 2023 13:00:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1689685225; bh=re+UehvkeQHBK1wHhGnLcp2yWUgDT1GsozNrkQ2XFcw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=e2jq/7vFH+5SdEhwac2XpIYEi4F+E5PgxK5t3cUMlQUQCqTe1YvjyexPjPu11dL2c yA+xClzV0scHRHYaigqmMwGwO524EVduViwfjGbx5JZ/Md/8EykRqPS2KCqv+fjAg+ OVZipEnxTXLcwE41PRm9YCd5p3Sy4LxJSOmeX0DCqvN/sCP1Y3ysHaCTT4H9xGNyTG PR81t1YkbjBc+0e4kc7x34mAlunxZCrAiJwbGXsiBYgfuNisFYP6+PTLhgYB2otZbr MPfNvkjFsrvou9y5c77Q3VziexDLzAOAt6FRUzMHZ8XXO2LdWHKBOClxYEHpj6XmGa 3QKnSjw0+UlCw== From: Ard Biesheuvel To: linux-crypto@vger.kernel.org Cc: Ard Biesheuvel , Herbert Xu , Eric Biggers , Kees Cook , Haren Myneni , Nick Terrell , Minchan Kim , Sergey Senozhatsky , Jens Axboe , Giovanni Cabiddu , Richard Weinberger , David Ahern , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Steffen Klassert , linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, qat-linux@intel.com, linuxppc-dev@lists.ozlabs.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org Subject: [RFC PATCH 12/21] crypto: lz4 - drop obsolete 'comp' implementation Date: Tue, 18 Jul 2023 14:58:38 +0200 Message-Id: <20230718125847.3869700-13-ardb@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230718125847.3869700-1-ardb@kernel.org> References: <20230718125847.3869700-1-ardb@kernel.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2947; i=ardb@kernel.org; h=from:subject; bh=re+UehvkeQHBK1wHhGnLcp2yWUgDT1GsozNrkQ2XFcw=; b=owGbwMvMwCFmkMcZplerG8N4Wi2JIWVbT7X8homhprm68cwLX+9c9Fvx644lvpYK0uyVHXczL lbqRHF3lLIwiHEwyIopsgjM/vtu5+mJUrXOs2Rh5rAygQxh4OIUgIkI7GFk2Cf5/H/hil+rRD0Y V1qVzlx8uzDmVsz8teat3v8K3ANncjIybI19KFrZfilr2byAGx94Wn2OsHp9Uz7yMyRa5daj4F4 hbgA= X-Developer-Key: i=ardb@kernel.org; a=openpgp; fpr=F43D03328115A198C90016883D200E9CA6329909 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org The 'comp' API is obsolete and will be removed, so remove this comp implementation. Signed-off-by: Ard Biesheuvel --- crypto/lz4.c | 61 +------------------- 1 file changed, 1 insertion(+), 60 deletions(-) diff --git a/crypto/lz4.c b/crypto/lz4.c index 0606f8862e7872ad..c46b6cbd91ce10c0 100644 --- a/crypto/lz4.c +++ b/crypto/lz4.c @@ -27,29 +27,11 @@ static void *lz4_alloc_ctx(struct crypto_scomp *tfm) return ctx; } -static int lz4_init(struct crypto_tfm *tfm) -{ - struct lz4_ctx *ctx = crypto_tfm_ctx(tfm); - - ctx->lz4_comp_mem = lz4_alloc_ctx(NULL); - if (IS_ERR(ctx->lz4_comp_mem)) - return -ENOMEM; - - return 0; -} - static void lz4_free_ctx(struct crypto_scomp *tfm, void *ctx) { vfree(ctx); } -static void lz4_exit(struct crypto_tfm *tfm) -{ - struct lz4_ctx *ctx = crypto_tfm_ctx(tfm); - - lz4_free_ctx(NULL, ctx->lz4_comp_mem); -} - static int __lz4_compress_crypto(const u8 *src, unsigned int slen, u8 *dst, unsigned int *dlen, void *ctx) { @@ -70,14 +52,6 @@ static int lz4_scompress(struct crypto_scomp *tfm, const u8 *src, return __lz4_compress_crypto(src, slen, dst, dlen, ctx); } -static int lz4_compress_crypto(struct crypto_tfm *tfm, const u8 *src, - unsigned int slen, u8 *dst, unsigned int *dlen) -{ - struct lz4_ctx *ctx = crypto_tfm_ctx(tfm); - - return __lz4_compress_crypto(src, slen, dst, dlen, ctx->lz4_comp_mem); -} - static int __lz4_decompress_crypto(const u8 *src, unsigned int slen, u8 *dst, unsigned int *dlen, void *ctx) { @@ -97,26 +71,6 @@ static int lz4_sdecompress(struct crypto_scomp *tfm, const u8 *src, return __lz4_decompress_crypto(src, slen, dst, dlen, NULL); } -static int lz4_decompress_crypto(struct crypto_tfm *tfm, const u8 *src, - unsigned int slen, u8 *dst, - unsigned int *dlen) -{ - return __lz4_decompress_crypto(src, slen, dst, dlen, NULL); -} - -static struct crypto_alg alg_lz4 = { - .cra_name = "lz4", - .cra_driver_name = "lz4-generic", - .cra_flags = CRYPTO_ALG_TYPE_COMPRESS, - .cra_ctxsize = sizeof(struct lz4_ctx), - .cra_module = THIS_MODULE, - .cra_init = lz4_init, - .cra_exit = lz4_exit, - .cra_u = { .compress = { - .coa_compress = lz4_compress_crypto, - .coa_decompress = lz4_decompress_crypto } } -}; - static struct scomp_alg scomp = { .alloc_ctx = lz4_alloc_ctx, .free_ctx = lz4_free_ctx, @@ -131,24 +85,11 @@ static struct scomp_alg scomp = { static int __init lz4_mod_init(void) { - int ret; - - ret = crypto_register_alg(&alg_lz4); - if (ret) - return ret; - - ret = crypto_register_scomp(&scomp); - if (ret) { - crypto_unregister_alg(&alg_lz4); - return ret; - } - - return ret; + return crypto_register_scomp(&scomp); } static void __exit lz4_mod_fini(void) { - crypto_unregister_alg(&alg_lz4); crypto_unregister_scomp(&scomp); }