netdev - [PATCH bluetooth-next 06/10] ndisc: add addr_len parameter to ndisc_fill_addr

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Date:	Mon, 18 Apr 2016 12:58:24 +0200
From:	Alexander Aring <aar@...gutronix.de>
To:	linux-wpan@...r.kernel.org
Cc:	kernel@...gutronix.de, marcel@...tmann.org,
	jukka.rissanen@...ux.intel.com, hannes@...essinduktion.org,
	stefan@....samsung.com, mcr@...delman.ca, werner@...esberger.net,
	linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
	Alexander Aring <aar@...gutronix.de>,
	"David S . Miller" <davem@...emloft.net>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	James Morris <jmorris@...ei.org>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	Patrick McHardy <kaber@...sh.net>
Subject: [PATCH bluetooth-next 06/10] ndisc: add addr_len parameter to ndisc_fill_addr_option

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.

Cc: David S. Miller <davem@...emloft.net>
Cc: Alexey Kuznetsov <kuznet@....inr.ac.ru>
Cc: James Morris <jmorris@...ei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>
Cc: Patrick McHardy <kaber@...sh.net>
Signed-off-by: Alexander Aring <aar@...gutronix.de>
---
 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.
-- 
2.8.0