From patchwork Tue May 12 06:06:15 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Simek X-Patchwork-Id: 471135 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 4016C140D18 for ; Tue, 12 May 2015 16:06:35 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752805AbbELGGU (ORCPT ); Tue, 12 May 2015 02:06:20 -0400 Received: from mail-wi0-f178.google.com ([209.85.212.178]:33980 "EHLO mail-wi0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752521AbbELGGT (ORCPT ); Tue, 12 May 2015 02:06:19 -0400 Received: by wicmc15 with SMTP id mc15so44909696wic.1 for ; Mon, 11 May 2015 23:06:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id; bh=p5MpruHhzfeG5MKfxJ6iviu100kYnqxniJycdppoFt0=; b=I4oOd2jSfDWNKzq5iYQJud36eRhkLLdsXqxEHES5I/sCRpv0CbaM6/y9uv7zHTEpKK 8mkqbkonA5Fd1j+TVc3Pu+plXUaAJlcLAoldQMRbzeZbkS2LMaC11puq5ggheqrEsHYl gQmlo7KSC9NhJ9RyvWY/Lkai7jMQz5EZcLF3AcroRkY2bfGJsSYv4XIfaMNttZUwvD0q eMj3ihK4xm48XCMEypSa/NF8ioKwPWGmQNeyF5FxZRAHXRdRw+Sj5Nv1Jetxe4yOufNr 67c+2nwLq+Wt1Jjo0Do/OaxGEHwLiYiqGsUbgzhPuM462GMA3BvQhM9bdRd4bdFUKURo wQSg== X-Gm-Message-State: ALoCoQk+hWXssjaax7D9WYV7ydPRDgmTfzGIIrgkcKCSor5PkHjGLWSvP8o2purwrBDSTRV8gUPU X-Received: by 10.180.82.73 with SMTP id g9mr6044889wiy.87.1431410777782; Mon, 11 May 2015 23:06:17 -0700 (PDT) Received: from localhost (nat-35.starnet.cz. [178.255.168.35]) by mx.google.com with ESMTPSA id ei8sm25978058wjd.32.2015.05.11.23.06.16 (version=TLSv1.1 cipher=RC4-SHA bits=128/128); Mon, 11 May 2015 23:06:16 -0700 (PDT) From: Michal Simek To: netdev@vger.kernel.org Cc: =?UTF-8?q?S=C3=B6ren=20Brinkmann?= , monstr@monstr.eu, Fabian Frederick , linux-kernel@vger.kernel.org, "David S. Miller" , =?UTF-8?q?Manuel=20Sch=C3=B6lling?= , Julia Lawall , Markus Elfring , Subbaraya Sundeep Bhatta , linux-arm-kernel@lists.infradead.org Subject: [PATCH v2] net: ll_temac: Fix DMA map size bug Date: Tue, 12 May 2015 08:06:15 +0200 Message-Id: <66b8efd7a63674220d55a03d0220897bd8b8712b.1431410769.git.michal.simek@xilinx.com> X-Mailer: git-send-email 2.3.5 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org DMA allocates skb->len instead of headlen which is used for DMA. Signed-off-by: Michal Simek --- Changes in v2: - Align the later argument with the right side of the parenthesis Reported-by: Julia Lawall drivers/net/ethernet/xilinx/ll_temac_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c index ca640d04fd93..3b99a4df71f8 100644 --- a/drivers/net/ethernet/xilinx/ll_temac_main.c +++ b/drivers/net/ethernet/xilinx/ll_temac_main.c @@ -705,8 +705,8 @@ static int temac_start_xmit(struct sk_buff *skb, struct net_device *ndev) cur_p->app0 |= STS_CTRL_APP0_SOP; cur_p->len = skb_headlen(skb); - cur_p->phys = dma_map_single(ndev->dev.parent, skb->data, skb->len, - DMA_TO_DEVICE); + cur_p->phys = dma_map_single(ndev->dev.parent, skb->data, + skb_headlen(skb), DMA_TO_DEVICE); cur_p->app4 = (unsigned long)skb; for (ii = 0; ii < num_frag; ii++) {