From patchwork Mon Dec 15 01:57:37 2008 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Samuel Ortiz X-Patchwork-Id: 13969 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 [209.132.176.167]) by ozlabs.org (Postfix) with ESMTP id 465CCDDFB3 for ; Mon, 15 Dec 2008 13:03:46 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751902AbYLOCDc (ORCPT ); Sun, 14 Dec 2008 21:03:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751687AbYLOCD3 (ORCPT ); Sun, 14 Dec 2008 21:03:29 -0500 Received: from 42.mail-out.ovh.net ([213.251.189.42]:35476 "HELO 42.mail-out.ovh.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751793AbYLOCDN (ORCPT ); Sun, 14 Dec 2008 21:03:13 -0500 Received: (qmail 24002 invoked by uid 503); 15 Dec 2008 01:56:13 -0000 Received: from b7.ovh.net (HELO mail246.ha.ovh.net) (213.186.33.57) by 42.mail-out.ovh.net with SMTP; 15 Dec 2008 01:56:13 -0000 Received: from b0.ovh.net (HELO queue-out) (213.186.33.50) by b0.ovh.net with SMTP; 15 Dec 2008 01:56:33 -0000 Received: from aannecy-256-1-36-87.w90-10.abo.wanadoo.fr (HELO sortiz-mobl) (samuel%sortiz.org@90.10.35.87) by ns0.ovh.net with SMTP; 15 Dec 2008 01:56:33 -0000 Message-Id: <20081215015903.905115415@sortiz.org> References: <20081215015729.587697008@sortiz.org> User-Agent: quilt/0.46-1 Date: Mon, 15 Dec 2008 02:57:37 +0100 From: Samuel Ortiz To: "David S. Miller" Cc: netdev@vger.kernel.org, irda-users@lists.sourceforge.net Subject: [RFC PATCH 8/9] irda: Add a WARN_ON when our head room is too small Content-Disposition: inline; filename=0008-irda-Add-a-WARN_ON-when-our-head-room-is-too-small.patch X-Ovh-Tracer-Id: 13353172895479670934 X-Ovh-Remote: 90.10.35.87 (aannecy-256-1-36-87.w90-10.abo.wanadoo.fr) X-Ovh-Local: 213.186.33.20 (ns0.ovh.net) X-Spam-Check: DONE|H 0.5/N Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Signed-off-by: Samuel Ortiz --- include/net/irda/irda_device.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/include/net/irda/irda_device.h b/include/net/irda/irda_device.h index 3bbf695..28c690c 100644 --- a/include/net/irda/irda_device.h +++ b/include/net/irda/irda_device.h @@ -233,6 +233,7 @@ void irda_setup_dma(int channel, dma_addr_t buffer, int count, int mode); static inline struct irda_skb_cb *irda_get_skb_cb(struct sk_buff *skb) { + WARN_ON(skb_headroom(skb) < sizeof(struct irda_skb_cb)); return (struct irda_skb_cb *)(skb->data - sizeof(struct irda_skb_cb)); }