From patchwork Thu Oct 8 09:34:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 268261 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=-9.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED autolearn=ham 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 9033DC43467 for ; Thu, 8 Oct 2020 09:34:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3DD752177B for ; Thu, 8 Oct 2020 09:34:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729136AbgJHJe6 (ORCPT ); Thu, 8 Oct 2020 05:34:58 -0400 Received: from pegase1.c-s.fr ([93.17.236.30]:29999 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726273AbgJHJe6 (ORCPT ); Thu, 8 Oct 2020 05:34:58 -0400 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4C6Qz2486Pz9v0Jd; Thu, 8 Oct 2020 11:34:54 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id TMI4UqB_f0Ts; Thu, 8 Oct 2020 11:34:54 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4C6Qz23Nxfz9v0Jb; Thu, 8 Oct 2020 11:34:54 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id A3D308B831; Thu, 8 Oct 2020 11:34:55 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id FS9mLCWGIccp; Thu, 8 Oct 2020 11:34:55 +0200 (CEST) Received: from po17688vm.idsi0.si.c-s.fr (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 70CC98B82F; Thu, 8 Oct 2020 11:34:55 +0200 (CEST) Received: by po17688vm.idsi0.si.c-s.fr (Postfix, from userid 0) id 2E4F865DCA; Thu, 8 Oct 2020 09:34:55 +0000 (UTC) Message-Id: From: Christophe Leroy Subject: [PATCH] crypto: talitos - Endianess in current_desc_hdr() To: Herbert Xu , "David S. Miller" Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Date: Thu, 8 Oct 2020 09:34:55 +0000 (UTC) Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org current_desc_hdr() compares the value of the current descriptor with the next_desc member of the talitos_desc struct. While the current descriptor is obtained from in_be32() which return CPU ordered bytes, next_desc member is in big endian order. Convert the current descriptor into big endian before comparing it with next_desc. This fixes a sparse warning. Fixes: 37b5e8897eb5 ("crypto: talitos - chain in buffered data for ahash on SEC1") Signed-off-by: Christophe Leroy --- drivers/crypto/talitos.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index f9f0d34d49f3..992d58a4dbf1 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -478,7 +478,7 @@ static __be32 current_desc_hdr(struct device *dev, int ch) iter = tail; while (priv->chan[ch].fifo[iter].dma_desc != cur_desc && - priv->chan[ch].fifo[iter].desc->next_desc != cur_desc) { + priv->chan[ch].fifo[iter].desc->next_desc != cpu_to_be32(cur_desc)) { iter = (iter + 1) & (priv->fifo_len - 1); if (iter == tail) { dev_err(dev, "couldn't locate current descriptor\n"); @@ -486,7 +486,7 @@ static __be32 current_desc_hdr(struct device *dev, int ch) } } - if (priv->chan[ch].fifo[iter].desc->next_desc == cur_desc) { + if (priv->chan[ch].fifo[iter].desc->next_desc == cpu_to_be32(cur_desc)) { struct talitos_edesc *edesc; edesc = container_of(priv->chan[ch].fifo[iter].desc,