From patchwork Wed Mar 4 00:30:29 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 462067 X-Patchwork-Delegate: michael@ellerman.id.au Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3C3131402B7 for ; Sat, 18 Apr 2015 00:27:51 +1000 (AEST) Received: from ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 074731A17AE for ; Sat, 18 Apr 2015 00:27:51 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from mailhub1.si.c-s.fr (pegase1.c-s.fr [93.17.236.30]) by lists.ozlabs.org (Postfix) with ESMTP id C6B8C1A0ABE for ; Sat, 18 Apr 2015 00:23:59 +1000 (AEST) Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 3FAE41C8258; Fri, 17 Apr 2015 16:23:58 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from mailhub1.si.c-s.fr ([192.168.12.234]) by localhost (mailhub1.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BQtgu-ZKqQ9W; Fri, 17 Apr 2015 16:23:58 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 286ED1C8251; Fri, 17 Apr 2015 16:23:58 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 15F40C73CA; Fri, 17 Apr 2015 16:23:58 +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 JSnj8UCR_HBN; Fri, 17 Apr 2015 16:23:58 +0200 (CEST) Received: from PO10863.localdomain (unknown [10.25.205.191]) by messagerie.si.c-s.fr (Postfix) with ESMTP id BBC32C73C5; Fri, 17 Apr 2015 16:23:57 +0200 (CEST) Received: by localhost.localdomain (Postfix, from userid 0) id 88EB51A242C; Fri, 17 Apr 2015 16:23:57 +0200 (CEST) From: Christophe Leroy Date: Wed, 4 Mar 2015 01:30:29 +0100 Subject: [PATCH v3 04/17] crypto: talitos - Add a helper function to clear j_extent field To: Kim Phillips , Herbert Xu , David S Miller Message-Id: <20150417142357.88EB51A242C@localhost.localdomain> Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" j_extent field is specific to SEC2 so we add a helper function to clear it so that SEC1 can redefine that function as nop Signed-off-by: Christophe Leroy --- drivers/crypto/talitos.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index fca0aed..c93f79b 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -61,6 +61,11 @@ static void to_talitos_ptr(struct talitos_ptr *ptr, dma_addr_t dma_addr) ptr->eptr = upper_32_bits(dma_addr); } +static void to_talitos_ptr_extent_clear(struct talitos_ptr *ptr) +{ + ptr->j_extent = 0; +} + /* * map virtual single (contiguous) pointer to h/w descriptor pointer */ @@ -1372,7 +1377,7 @@ int map_sg_in_talitos_ptr(struct device *dev, struct scatterlist *src, int sg_count; ptr->len = cpu_to_be16(len); - ptr->j_extent = 0; + to_talitos_ptr_extent_clear(ptr); sg_count = talitos_map_sg(dev, src, edesc->src_nents ? : 1, dir, edesc->src_chained); @@ -1402,7 +1407,7 @@ void map_sg_out_talitos_ptr(struct device *dev, struct scatterlist *dst, struct talitos_ptr *ptr, int sg_count) { ptr->len = cpu_to_be16(len); - ptr->j_extent = 0; + to_talitos_ptr_extent_clear(ptr); if (dir != DMA_NONE) sg_count = talitos_map_sg(dev, dst, edesc->dst_nents ? : 1, @@ -1444,7 +1449,7 @@ static int common_nonsnoop(struct talitos_edesc *edesc, /* cipher iv */ to_talitos_ptr(&desc->ptr[1], edesc->iv_dma); desc->ptr[1].len = cpu_to_be16(ivsize); - desc->ptr[1].j_extent = 0; + to_talitos_ptr_extent_clear(&desc->ptr[1]); /* cipher key */ map_single_talitos_ptr(dev, &desc->ptr[2], ctx->keylen,