From patchwork Tue May 12 05:58:22 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Simek X-Patchwork-Id: 471134 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 DC053140D16 for ; Tue, 12 May 2015 15:58:36 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752687AbbELF6d (ORCPT ); Tue, 12 May 2015 01:58:33 -0400 Received: from mail-wg0-f54.google.com ([74.125.82.54]:33427 "EHLO mail-wg0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752574AbbELF6a (ORCPT ); Tue, 12 May 2015 01:58:30 -0400 Received: by wgin8 with SMTP id n8so152613548wgi.0 for ; Mon, 11 May 2015 22:58:29 -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=I3N2iOKmWnbEpGFKpMoSGI4/fQCAIAgmUrgpDXqxpXY=; b=mxXsINZIvRqzozsWo1vic3iG3m++USeSMK2zgzGr8RUK9DVc8XMnKryJAZgep0lFZ4 vT12XuBiZ6i2alXTve00cw/1OOqBSqu4yIRVrm/SeA30BdVdVeDz+o7m61/a2RnQaJl9 y/Zw33udz1aSatsGApDFiH1uOoWQHj68aBs+3EJq9pXjymW0tn6hp7SY6eaRnhjHA8Ad 3wm6rXqBg3nyLkm74cjQd9eYBECgqwx0BW+zsiw0OSCVcsZxd7zQNBsAnWx/TEqfPKm9 eBCoTnzCnrSUwsYxvjbKss3kczejnP+Pk7YGG1xwNURbic9be9VwfL/QW2jv31SmX48T QskQ== X-Gm-Message-State: ALoCoQldd8oIBIU/FGJgRBZ3/AXzRVMqXB46pSZGYko+SnOI4lrr5f5fwGtoTYnL6QBZRDIPFxvA X-Received: by 10.180.108.147 with SMTP id hk19mr5428082wib.51.1431410309554; Mon, 11 May 2015 22:58:29 -0700 (PDT) Received: from localhost (nat-35.starnet.cz. [178.255.168.35]) by mx.google.com with ESMTPSA id l3sm1069500wiv.18.2015.05.11.22.58.27 (version=TLSv1.1 cipher=RC4-SHA bits=128/128); Mon, 11 May 2015 22:58:28 -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] net: ll_temac: Fix DMA map size bug Date: Tue, 12 May 2015 07:58:22 +0200 Message-Id: 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 --- 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..cfb6bdb37fdc 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++) {