From: Uri Simchoni Subject: [PATCHv2 3/10] crypto mv_cesa : Fix situation where the dest sglist is organized differently than the source sglist Date: Thu, 08 Apr 2010 19:26:34 +0300 Message-ID: <4BBE03BA.90208@jdland.co.il> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Herbert Xu To: linux-crypto@vger.kernel.org Return-path: Received: from www011.intervision.co.il ([80.244.168.31]:36881 "EHLO www011.intervision.co.il" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755515Ab0DHQ0u (ORCPT ); Thu, 8 Apr 2010 12:26:50 -0400 Sender: linux-crypto-owner@vger.kernel.org List-ID: Bugfix for situations where the destination scatterlist has a different buffer structure than the source scatterlist (e.g. source has one 2K buffer and dest has 2 1K buffers) Signed-off-by: Uri Simchoni --- diff -upr linux-2.6.32.8_p2/drivers/crypto/mv_cesa.c linux-2.6.32.8_p3/drivers/crypto/mv_cesa.c --- linux-2.6.32.8_p2/drivers/crypto/mv_cesa.c 2010-03-16 09:04:01.860953458 +0200 +++ linux-2.6.32.8_p3/drivers/crypto/mv_cesa.c 2010-03-16 09:06:10.183753278 +0200 @@ -242,6 +242,8 @@ static void dequeue_complete_req(void) struct ablkcipher_request *req = cpg->cur_req; void *buf; int ret; + int need_copy_len = cpg->p.crypt_len; + int sram_offset = 0; cpg->p.total_req_bytes += cpg->p.crypt_len; do { @@ -257,14 +259,16 @@ static void dequeue_complete_req(void) buf = cpg->p.dst_sg_it.addr; buf += cpg->p.dst_start; - dst_copy = min(cpg->p.crypt_len, cpg->p.sg_dst_left);