From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751511AbeEBKAO (ORCPT ); Wed, 2 May 2018 06:00:14 -0400 Received: from mail.bootlin.com ([62.4.15.54]:44157 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750878AbeEBKAN (ORCPT ); Wed, 2 May 2018 06:00:13 -0400 From: Antoine Tenart To: herbert@gondor.apana.org.au, davem@davemloft.net Cc: Antoine Tenart , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, thomas.petazzoni@bootlin.com, maxime.chevallier@bootlin.com, gregory.clement@bootlin.com, miquel.raynal@bootlin.com, nadavh@marvell.com, oferh@marvell.com, igall@marvell.com Subject: [PATCH 01/10] crypto: aead - allow to allocate AEAD requests on the stack Date: Wed, 2 May 2018 11:57:16 +0200 Message-Id: <20180502095725.31935-2-antoine.tenart@bootlin.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180502095725.31935-1-antoine.tenart@bootlin.com> References: <20180502095725.31935-1-antoine.tenart@bootlin.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Adds the AEAD_REQUEST_ON_STACK primitive to allow allocating AEAD requests on the stack, as it can already be done with various other crypto algorithms within the kernel. Signed-off-by: Antoine Tenart --- include/crypto/aead.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/crypto/aead.h b/include/crypto/aead.h index 1e26f790b03f..b67064786546 100644 --- a/include/crypto/aead.h +++ b/include/crypto/aead.h @@ -151,6 +151,11 @@ struct aead_alg { struct crypto_alg base; }; +#define AEAD_REQUEST_ON_STACK(name, tfm) \ + char __##name##_desc[sizeof(struct aead_request) + \ + crypto_aead_reqsize(tfm)] CRYPTO_MINALIGN_ATTR; \ + struct aead_request *name = (void *)__##name##_desc + struct crypto_aead { unsigned int authsize; unsigned int reqsize; -- 2.17.0