From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E05DDC433E1 for ; Tue, 16 Jun 2020 15:02:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B83E02098B for ; Tue, 16 Jun 2020 15:02:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="FJn9MDxQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727804AbgFPPCK (ORCPT ); Tue, 16 Jun 2020 11:02:10 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:55995 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729259AbgFPPCK (ORCPT ); Tue, 16 Jun 2020 11:02:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1592319727; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=XZo4J+SgNxyzGVgIQua9wRMxW4HrViwy8POAscFoklo=; b=FJn9MDxQgQ4ZgXGDnC+2T54VDUE4vHNchqDbvyvGwT+Vj2U6eXxaxKj+uIto9hQd8G9eZO n3ku9BJTQHZUHBbidyzMeTXwRl1kjE+34Kmr7aS0Ga/XkAw8Pc+vA6FSHE0UVu3oAg94AT zt16mfKICtNDEn1x67FAt+ipAuD2yYA= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-513-i7a-r2pHMoa1gbtpGiOKPA-1; Tue, 16 Jun 2020 11:02:03 -0400 X-MC-Unique: i7a-r2pHMoa1gbtpGiOKPA-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 8426C18A0761; Tue, 16 Jun 2020 15:02:02 +0000 (UTC) Received: from file01.intranet.prod.int.rdu2.redhat.com (file01.intranet.prod.int.rdu2.redhat.com [10.11.5.7]) by smtp.corp.redhat.com (Postfix) with ESMTPS id A19585D9EF; Tue, 16 Jun 2020 15:01:58 +0000 (UTC) Received: from file01.intranet.prod.int.rdu2.redhat.com (localhost [127.0.0.1]) by file01.intranet.prod.int.rdu2.redhat.com (8.14.4/8.14.4) with ESMTP id 05GF1wlW028883; Tue, 16 Jun 2020 11:01:58 -0400 Received: from localhost (mpatocka@localhost) by file01.intranet.prod.int.rdu2.redhat.com (8.14.4/8.14.4/Submit) with ESMTP id 05GF1wdq028879; Tue, 16 Jun 2020 11:01:58 -0400 X-Authentication-Warning: file01.intranet.prod.int.rdu2.redhat.com: mpatocka owned process doing -bs Date: Tue, 16 Jun 2020 11:01:58 -0400 (EDT) From: Mikulas Patocka X-X-Sender: mpatocka@file01.intranet.prod.int.rdu2.redhat.com To: Herbert Xu cc: "David S. Miller" , linux-crypto@vger.kernel.org, Mike Snitzer , Milan Broz , dm-devel@redhat.com, linux-kernel@vger.kernel.org Subject: [PATCH 2/4] crypto: pass the flag CRYPTO_ALG_ALLOCATES_MEMORY In-Reply-To: Message-ID: References: <20200610010450.GA6449@gondor.apana.org.au> <20200610121106.GA23137@gondor.apana.org.au> User-Agent: Alpine 2.02 (LRH 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Pass the flag CRYPTO_ALG_ALLOCATES_MEMORY down through the crypto API. Signed-off-by: Mikulas Patocka --- crypto/adiantum.c | 3 ++- crypto/authenc.c | 5 +++-- crypto/authencesn.c | 5 +++-- crypto/ccm.c | 7 ++++--- crypto/chacha20poly1305.c | 5 +++-- crypto/cryptd.c | 7 +++++-- crypto/ctr.c | 3 ++- crypto/cts.c | 5 +++-- crypto/essiv.c | 5 +++-- crypto/gcm.c | 15 +++++++++------ crypto/geniv.c | 3 ++- crypto/lrw.c | 5 +++-- crypto/rsa-pkcs1pad.c | 5 +++-- crypto/xts.c | 2 +- include/crypto/algapi.h | 9 +++++++++ 15 files changed, 55 insertions(+), 29 deletions(-) Index: linux-2.6/crypto/authenc.c =================================================================== --- linux-2.6.orig/crypto/authenc.c +++ linux-2.6/crypto/authenc.c @@ -388,7 +388,8 @@ static int crypto_authenc_create(struct if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask) return -EINVAL; - mask = crypto_requires_sync(algt->type, algt->mask); + mask = crypto_requires_sync(algt->type, algt->mask) | + crypto_requires_nomem(algt->type, algt->mask); inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL); if (!inst) @@ -424,7 +425,7 @@ static int crypto_authenc_create(struct goto err_free_inst; inst->alg.base.cra_flags = (auth_base->cra_flags | - enc->base.cra_flags) & CRYPTO_ALG_ASYNC; + enc->base.cra_flags) & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_priority = enc->base.cra_priority * 10 + auth_base->cra_priority; inst->alg.base.cra_blocksize = enc->base.cra_blocksize; Index: linux-2.6/crypto/authencesn.c =================================================================== --- linux-2.6.orig/crypto/authencesn.c +++ linux-2.6/crypto/authencesn.c @@ -406,7 +406,8 @@ static int crypto_authenc_esn_create(str if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask) return -EINVAL; - mask = crypto_requires_sync(algt->type, algt->mask); + mask = crypto_requires_sync(algt->type, algt->mask) | + crypto_requires_nomem(algt->type, algt->mask); inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL); if (!inst) @@ -438,7 +439,7 @@ static int crypto_authenc_esn_create(str goto err_free_inst; inst->alg.base.cra_flags = (auth_base->cra_flags | - enc->base.cra_flags) & CRYPTO_ALG_ASYNC; + enc->base.cra_flags) & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_priority = enc->base.cra_priority * 10 + auth_base->cra_priority; inst->alg.base.cra_blocksize = enc->base.cra_blocksize; Index: linux-2.6/crypto/ccm.c =================================================================== --- linux-2.6.orig/crypto/ccm.c +++ linux-2.6/crypto/ccm.c @@ -462,7 +462,8 @@ static int crypto_ccm_create_common(stru if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask) return -EINVAL; - mask = crypto_requires_sync(algt->type, algt->mask); + mask = crypto_requires_sync(algt->type, algt->mask) | + crypto_requires_nomem(algt->type, algt->mask); inst = kzalloc(sizeof(*inst) + sizeof(*ictx), GFP_KERNEL); if (!inst) @@ -507,7 +508,7 @@ static int crypto_ccm_create_common(stru mac->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME) goto err_free_inst; - inst->alg.base.cra_flags = ctr->base.cra_flags & CRYPTO_ALG_ASYNC; + inst->alg.base.cra_flags = ctr->base.cra_flags & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_priority = (mac->base.cra_priority + ctr->base.cra_priority) / 2; inst->alg.base.cra_blocksize = 1; @@ -759,7 +760,7 @@ static int crypto_rfc4309_create(struct CRYPTO_MAX_ALG_NAME) goto err_free_inst; - inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC; + inst->alg.base.cra_flags = alg->base.cra_flags & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_priority = alg->base.cra_priority; inst->alg.base.cra_blocksize = 1; inst->alg.base.cra_alignmask = alg->base.cra_alignmask; Index: linux-2.6/crypto/chacha20poly1305.c =================================================================== --- linux-2.6.orig/crypto/chacha20poly1305.c +++ linux-2.6/crypto/chacha20poly1305.c @@ -573,7 +573,8 @@ static int chachapoly_create(struct cryp if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask) return -EINVAL; - mask = crypto_requires_sync(algt->type, algt->mask); + mask = crypto_requires_sync(algt->type, algt->mask) | + crypto_requires_nomem(algt->type, algt->mask); inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL); if (!inst) @@ -614,7 +615,7 @@ static int chachapoly_create(struct cryp goto err_free_inst; inst->alg.base.cra_flags = (chacha->base.cra_flags | - poly->base.cra_flags) & CRYPTO_ALG_ASYNC; + poly->base.cra_flags) & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_priority = (chacha->base.cra_priority + poly->base.cra_priority) / 2; inst->alg.base.cra_blocksize = 1; Index: linux-2.6/crypto/cryptd.c =================================================================== --- linux-2.6.orig/crypto/cryptd.c +++ linux-2.6/crypto/cryptd.c @@ -396,6 +396,7 @@ static int cryptd_create_skcipher(struct goto err_free_inst; inst->alg.base.cra_flags = CRYPTO_ALG_ASYNC | + (alg->base.cra_flags & CRYPTO_ALG_ALLOCATES_MEMORY) | (alg->base.cra_flags & CRYPTO_ALG_INTERNAL); inst->alg.ivsize = crypto_skcipher_alg_ivsize(alg); @@ -663,7 +664,8 @@ static int cryptd_create_hash(struct cry inst->alg.halg.base.cra_flags = CRYPTO_ALG_ASYNC | (alg->base.cra_flags & (CRYPTO_ALG_INTERNAL | - CRYPTO_ALG_OPTIONAL_KEY)); + CRYPTO_ALG_OPTIONAL_KEY | + CRYPTO_ALG_ALLOCATES_MEMORY)); inst->alg.halg.digestsize = alg->digestsize; inst->alg.halg.statesize = alg->statesize; @@ -849,7 +851,8 @@ static int cryptd_create_aead(struct cry goto err_free_inst; inst->alg.base.cra_flags = CRYPTO_ALG_ASYNC | - (alg->base.cra_flags & CRYPTO_ALG_INTERNAL); + (alg->base.cra_flags & CRYPTO_ALG_INTERNAL) | + (alg->base.cra_flags & CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_ctxsize = sizeof(struct cryptd_aead_ctx); inst->alg.ivsize = crypto_aead_alg_ivsize(alg); Index: linux-2.6/crypto/ctr.c =================================================================== --- linux-2.6.orig/crypto/ctr.c +++ linux-2.6/crypto/ctr.c @@ -276,6 +276,7 @@ static int crypto_rfc3686_create(struct return -ENOMEM; mask = crypto_requires_sync(algt->type, algt->mask) | + crypto_requires_nomem(algt->type, algt->mask) | crypto_requires_off(algt->type, algt->mask, CRYPTO_ALG_NEED_FALLBACK); @@ -310,7 +311,7 @@ static int crypto_rfc3686_create(struct inst->alg.base.cra_blocksize = 1; inst->alg.base.cra_alignmask = alg->base.cra_alignmask; - inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC; + inst->alg.base.cra_flags = alg->base.cra_flags & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.ivsize = CTR_RFC3686_IV_SIZE; inst->alg.chunksize = crypto_skcipher_alg_chunksize(alg); Index: linux-2.6/crypto/cts.c =================================================================== --- linux-2.6.orig/crypto/cts.c +++ linux-2.6/crypto/cts.c @@ -337,7 +337,8 @@ static int crypto_cts_create(struct cryp if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask) return -EINVAL; - mask = crypto_requires_sync(algt->type, algt->mask); + mask = crypto_requires_sync(algt->type, algt->mask) | + crypto_requires_nomem(algt->type, algt->mask); inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL); if (!inst) @@ -364,7 +365,7 @@ static int crypto_cts_create(struct cryp if (err) goto err_free_inst; - inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC; + inst->alg.base.cra_flags = alg->base.cra_flags & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_priority = alg->base.cra_priority; inst->alg.base.cra_blocksize = alg->base.cra_blocksize; inst->alg.base.cra_alignmask = alg->base.cra_alignmask; Index: linux-2.6/crypto/essiv.c =================================================================== --- linux-2.6.orig/crypto/essiv.c +++ linux-2.6/crypto/essiv.c @@ -468,7 +468,8 @@ static int essiv_create(struct crypto_te return PTR_ERR(shash_name); type = algt->type & algt->mask; - mask = crypto_requires_sync(algt->type, algt->mask); + mask = crypto_requires_sync(algt->type, algt->mask) | + crypto_requires_nomem(algt->type, algt->mask); switch (type) { case CRYPTO_ALG_TYPE_SKCIPHER: @@ -559,7 +560,7 @@ static int essiv_create(struct crypto_te hash_alg->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME) goto out_free_hash; - base->cra_flags = block_base->cra_flags & CRYPTO_ALG_ASYNC; + base->cra_flags = block_base->cra_flags & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); base->cra_blocksize = block_base->cra_blocksize; base->cra_ctxsize = sizeof(struct essiv_tfm_ctx); base->cra_alignmask = block_base->cra_alignmask; Index: linux-2.6/crypto/gcm.c =================================================================== --- linux-2.6.orig/crypto/gcm.c +++ linux-2.6/crypto/gcm.c @@ -593,7 +593,8 @@ static int crypto_gcm_create_common(stru if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask) return -EINVAL; - mask = crypto_requires_sync(algt->type, algt->mask); + mask = crypto_requires_sync(algt->type, algt->mask) | + crypto_requires_nomem(algt->type, algt->mask); inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL); if (!inst) @@ -636,7 +637,7 @@ static int crypto_gcm_create_common(stru goto err_free_inst; inst->alg.base.cra_flags = (ghash->base.cra_flags | - ctr->base.cra_flags) & CRYPTO_ALG_ASYNC; + ctr->base.cra_flags) & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_priority = (ghash->base.cra_priority + ctr->base.cra_priority) / 2; inst->alg.base.cra_blocksize = 1; @@ -849,7 +850,8 @@ static int crypto_rfc4106_create(struct if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask) return -EINVAL; - mask = crypto_requires_sync(algt->type, algt->mask); + mask = crypto_requires_sync(algt->type, algt->mask) | + crypto_requires_nomem(algt->type, algt->mask); inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL); if (!inst) @@ -882,7 +884,7 @@ static int crypto_rfc4106_create(struct CRYPTO_MAX_ALG_NAME) goto err_free_inst; - inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC; + inst->alg.base.cra_flags = alg->base.cra_flags & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_priority = alg->base.cra_priority; inst->alg.base.cra_blocksize = 1; inst->alg.base.cra_alignmask = alg->base.cra_alignmask; @@ -1071,7 +1073,8 @@ static int crypto_rfc4543_create(struct if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask) return -EINVAL; - mask = crypto_requires_sync(algt->type, algt->mask); + mask = crypto_requires_sync(algt->type, algt->mask) | + crypto_requires_nomem(algt->type, algt->mask); inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL); if (!inst) @@ -1104,7 +1107,7 @@ static int crypto_rfc4543_create(struct CRYPTO_MAX_ALG_NAME) goto err_free_inst; - inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC; + inst->alg.base.cra_flags = alg->base.cra_flags & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_priority = alg->base.cra_priority; inst->alg.base.cra_blocksize = 1; inst->alg.base.cra_alignmask = alg->base.cra_alignmask; Index: linux-2.6/crypto/geniv.c =================================================================== --- linux-2.6.orig/crypto/geniv.c +++ linux-2.6/crypto/geniv.c @@ -64,6 +64,7 @@ struct aead_instance *aead_geniv_alloc(s /* Ignore async algorithms if necessary. */ mask |= crypto_requires_sync(algt->type, algt->mask); + mask |= crypto_requires_nomem(algt->type, algt->mask); err = crypto_grab_aead(spawn, aead_crypto_instance(inst), crypto_attr_alg_name(tb[1]), type, mask); @@ -89,7 +90,7 @@ struct aead_instance *aead_geniv_alloc(s CRYPTO_MAX_ALG_NAME) goto err_free_inst; - inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC; + inst->alg.base.cra_flags = alg->base.cra_flags & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_priority = alg->base.cra_priority; inst->alg.base.cra_blocksize = alg->base.cra_blocksize; inst->alg.base.cra_alignmask = alg->base.cra_alignmask; Index: linux-2.6/crypto/lrw.c =================================================================== --- linux-2.6.orig/crypto/lrw.c +++ linux-2.6/crypto/lrw.c @@ -311,7 +311,8 @@ static int create(struct crypto_template if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask) return -EINVAL; - mask = crypto_requires_sync(algt->type, algt->mask); + mask = crypto_requires_sync(algt->type, algt->mask) | + crypto_requires_nomem(algt->type, algt->mask); cipher_name = crypto_attr_alg_name(tb[1]); if (IS_ERR(cipher_name)) @@ -379,7 +380,7 @@ static int create(struct crypto_template } else goto err_free_inst; - inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC; + inst->alg.base.cra_flags = alg->base.cra_flags & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_priority = alg->base.cra_priority; inst->alg.base.cra_blocksize = LRW_BLOCK_SIZE; inst->alg.base.cra_alignmask = alg->base.cra_alignmask | Index: linux-2.6/crypto/rsa-pkcs1pad.c =================================================================== --- linux-2.6.orig/crypto/rsa-pkcs1pad.c +++ linux-2.6/crypto/rsa-pkcs1pad.c @@ -611,7 +611,8 @@ static int pkcs1pad_create(struct crypto if ((algt->type ^ CRYPTO_ALG_TYPE_AKCIPHER) & algt->mask) return -EINVAL; - mask = crypto_requires_sync(algt->type, algt->mask); + mask = crypto_requires_sync(algt->type, algt->mask) | + crypto_requires_nomem(algt->type, algt->mask); inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL); if (!inst) @@ -658,7 +659,7 @@ static int pkcs1pad_create(struct crypto goto err_free_inst; } - inst->alg.base.cra_flags = rsa_alg->base.cra_flags & CRYPTO_ALG_ASYNC; + inst->alg.base.cra_flags = rsa_alg->base.cra_flags & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_priority = rsa_alg->base.cra_priority; inst->alg.base.cra_ctxsize = sizeof(struct pkcs1pad_ctx); Index: linux-2.6/crypto/xts.c =================================================================== --- linux-2.6.orig/crypto/xts.c +++ linux-2.6/crypto/xts.c @@ -415,7 +415,7 @@ static int create(struct crypto_template } else goto err_free_inst; - inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC; + inst->alg.base.cra_flags = alg->base.cra_flags & (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY); inst->alg.base.cra_priority = alg->base.cra_priority; inst->alg.base.cra_blocksize = XTS_BLOCK_SIZE; inst->alg.base.cra_alignmask = alg->base.cra_alignmask | Index: linux-2.6/include/crypto/algapi.h =================================================================== --- linux-2.6.orig/include/crypto/algapi.h +++ linux-2.6/include/crypto/algapi.h @@ -247,6 +247,15 @@ static inline int crypto_requires_sync(u return crypto_requires_off(type, mask, CRYPTO_ALG_ASYNC); } +/* + * Returns CRYPTO_ALG_ALLOCATES_MEMORY if type/mask requires the use of sync algorithms. + * Otherwise returns zero. + */ +static inline int crypto_requires_nomem(u32 type, u32 mask) +{ + return crypto_requires_off(type, mask, CRYPTO_ALG_ALLOCATES_MEMORY); +} + noinline unsigned long __crypto_memneq(const void *a, const void *b, size_t size); /** Index: linux-2.6/crypto/adiantum.c =================================================================== --- linux-2.6.orig/crypto/adiantum.c +++ linux-2.6/crypto/adiantum.c @@ -507,7 +507,8 @@ static int adiantum_create(struct crypto if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask) return -EINVAL; - mask = crypto_requires_sync(algt->type, algt->mask); + mask = crypto_requires_sync(algt->type, algt->mask) | + crypto_requires_nomem(algt->type, algt->mask); inst = kzalloc(sizeof(*inst) + sizeof(*ictx), GFP_KERNEL); if (!inst)