linux-kernel - [ 017/135] netpoll: Should handle ETH_P_ARP other than ETH_P_IP in netpoll_neigh

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Message-Id: <20131011193947.105848297@linuxfoundation.org>
Date:	Fri, 11 Oct 2013 12:38:18 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Sonic Zhang <sonic.zhang@...log.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [ 017/135] netpoll: Should handle ETH_P_ARP other than ETH_P_IP in netpoll_neigh_reply

3.11-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sonic Zhang <sonic.zhang@...log.com>

[ Upstream commit b0dd663b60944a3ce86430fa35549fb37968bda0 ]

The received ARP request type in the Ethernet packet head is ETH_P_ARP other than ETH_P_IP.

[ Bug introduced by commit b7394d2429c198b1da3d46ac39192e891029ec0f
  ("netpoll: prepare for ipv6") ]

Signed-off-by: Sonic Zhang <sonic.zhang@...log.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/core/netpoll.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -550,7 +550,7 @@ static void netpoll_neigh_reply(struct s
 		return;
 
 	proto = ntohs(eth_hdr(skb)->h_proto);
-	if (proto == ETH_P_IP) {
+	if (proto == ETH_P_ARP) {
 		struct arphdr *arp;
 		unsigned char *arp_ptr;
 		/* No arp on this interface */


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