netpoll: fix the skb check in pkt_is_ns

[ Not applicable upstream commit, the code here has been removed
  upstream. ]

Neighbor Solicitation is ipv6 protocol, so we should check
skb->protocol with ETH_P_IPV6

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Cc: WANG Cong <amwang@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 433a105..e861438 100644 (file)
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -745,7 +745,7 @@ static bool pkt_is_ns(struct sk_buff *skb)
        struct nd_msg *msg;
        struct ipv6hdr *hdr;
 
-       if (skb->protocol != htons(ETH_P_ARP))
+       if (skb->protocol != htons(ETH_P_IPV6))
                return false;
        if (!pskb_may_pull(skb, sizeof(struct ipv6hdr) + sizeof(struct nd_msg)))
                return false;