From patchwork Thu Apr 7 18:54:18 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Aring X-Patchwork-Id: 8776531 Return-Path: X-Original-To: patchwork-linux-wpan@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id E562FC0553 for ; Thu, 7 Apr 2016 19:00:20 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1208120222 for ; Thu, 7 Apr 2016 19:00:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2E6D7201D3 for ; Thu, 7 Apr 2016 19:00:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751802AbcDGTAR (ORCPT ); Thu, 7 Apr 2016 15:00:17 -0400 Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:51117 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757370AbcDGSyi (ORCPT ); Thu, 7 Apr 2016 14:54:38 -0400 Received: from gallifrey.ext.pengutronix.de ([2001:67c:670:201:5054:ff:fe8d:eefb] helo=omega.localdomain) by metis.ext.pengutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1aoF4e-0003du-PE; Thu, 07 Apr 2016 20:54:36 +0200 From: Alexander Aring To: linux-wpan@vger.kernel.org Cc: kernel@pengutronix.de, jukka.rissanen@linux.intel.com, hannes@stressinduktion.org, stefan@osg.samsung.com, mcr@sandelman.ca, werner@almesberger.net, Alexander Aring Subject: [RFCv2 bluetooth-next 17/21] ndisc: add addr_len parameter to ndisc_fill_addr_option Date: Thu, 7 Apr 2016 20:54:18 +0200 Message-Id: <1460055262-4330-18-git-send-email-aar@pengutronix.de> X-Mailer: git-send-email 2.8.0 In-Reply-To: <1460055262-4330-1-git-send-email-aar@pengutronix.de> References: <1460055262-4330-1-git-send-email-aar@pengutronix.de> X-SA-Exim-Connect-IP: 2001:67c:670:201:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: aar@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-wpan@vger.kernel.org Sender: linux-wpan-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wpan@vger.kernel.org X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch makes the address length as argument for the ndisc_fill_addr_option function. This is necessary to handle addresses which don't use dev->addr_len as address length. Signed-off-by: Alexander Aring --- net/ipv6/ndisc.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 4e91d5e..176c7c4 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -150,11 +150,11 @@ struct neigh_table nd_tbl = { }; EXPORT_SYMBOL_GPL(nd_tbl); -static void ndisc_fill_addr_option(struct sk_buff *skb, int type, void *data) +static void ndisc_fill_addr_option(struct sk_buff *skb, int type, void *data, + int data_len) { int pad = ndisc_addr_option_pad(skb->dev->type); - int data_len = skb->dev->addr_len; - int space = ndisc_opt_addr_space(skb->dev, skb->dev->addr_len); + int space = ndisc_opt_addr_space(skb->dev, data_len); u8 *opt = skb_put(skb, space); opt[0] = type; @@ -528,7 +528,7 @@ void ndisc_send_na(struct net_device *dev, const struct in6_addr *daddr, if (inc_opt) ndisc_fill_addr_option(skb, ND_OPT_TARGET_LL_ADDR, - dev->dev_addr); + dev->dev_addr, dev->addr_len); ndisc_send_skb(skb, daddr, src_addr); @@ -590,7 +590,7 @@ void ndisc_send_ns(struct net_device *dev, const struct in6_addr *solicit, if (inc_opt) ndisc_fill_addr_option(skb, ND_OPT_SOURCE_LL_ADDR, - dev->dev_addr); + dev->dev_addr, dev->addr_len); ndisc_send_skb(skb, daddr, saddr); } @@ -641,7 +641,7 @@ void ndisc_send_rs(struct net_device *dev, const struct in6_addr *saddr, if (send_sllao) ndisc_fill_addr_option(skb, ND_OPT_SOURCE_LL_ADDR, - dev->dev_addr); + dev->dev_addr, dev->addr_len); ndisc_send_skb(skb, daddr, saddr); } @@ -1597,7 +1597,8 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target) */ if (ha) - ndisc_fill_addr_option(buff, ND_OPT_TARGET_LL_ADDR, ha); + ndisc_fill_addr_option(buff, ND_OPT_TARGET_LL_ADDR, ha, + dev->addr_len); /* * build redirect option and copy skb over to the new packet.