netdev - [PATCH net] rtnetlink: fix FDB size computation

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Message-Id: <9bef2a8afa6f8193fcca61ea381b67a52ab878b2.1479477903.git.sd@queasysnail.net>
Date:   Fri, 18 Nov 2016 15:50:39 +0100
From:   Sabrina Dubroca <sd@...asysnail.net>
To:     netdev@...r.kernel.org
Cc:     Sabrina Dubroca <sd@...asysnail.net>,
        Hubert Sokolowski <hubert.sokolowski@...el.com>
Subject: [PATCH net] rtnetlink: fix FDB size computation

Add missing NDA_VLAN attribute's size.

Fixes: 1e53d5bb8878 ("net: Pass VLAN ID to rtnl_fdb_notify.")
Signed-off-by: Sabrina Dubroca <sd@...asysnail.net>
---
 net/core/rtnetlink.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 2a75127f0e9e..92e75af2dc6a 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2863,7 +2863,10 @@ static int nlmsg_populate_fdb_fill(struct sk_buff *skb,
 
 static inline size_t rtnl_fdb_nlmsg_size(void)
 {
-	return NLMSG_ALIGN(sizeof(struct ndmsg)) + nla_total_size(ETH_ALEN);
+	return NLMSG_ALIGN(sizeof(struct ndmsg)) +
+	       nla_total_size(ETH_ALEN) +	/* NDA_LLADDR */
+	       nla_total_size(sizeof(u16)) +	/* NDA_VLAN */
+	       0;
 }
 
 static void rtnl_fdb_notify(struct net_device *dev, u8 *addr, u16 vid, int type,
-- 
2.10.2