linux-kernel - [V4 PATCH 3/3] bond: service netpoll arp queue on master device

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Message-Id: <1298022215-21059-3-git-send-email-amwang@redhat.com>
Date:	Fri, 18 Feb 2011 17:43:34 +0800
From:	Amerigo Wang <amwang@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Neil Horman <nhorman@...hat.com>,
	Herbert Xu <herbert@...dor.hengli.com.au>,
	Amerigo Wang <amwang@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	Neil Horman <nhorman@...driver.com>,
	Eric Dumazet <eric.dumazet@...il.com>, netdev@...r.kernel.org
Subject: [V4 PATCH 3/3] bond: service netpoll arp queue on master device

Neil pointed out that we can't send ARP reply on behalf of slaves,
we need to move the arp queue to their bond device.

Signed-off-by: WANG Cong <amwang@...hat.com>
Cc: Neil Horman <nhorman@...hat.com>

---
 net/core/netpoll.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index f68e694..013e04a 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -193,6 +193,15 @@ void netpoll_poll_dev(struct net_device *dev)
 
 	poll_napi(dev);
 
+	if (dev->priv_flags & IFF_SLAVE) {
+		if (dev->npinfo) {
+			struct net_device *bond_dev = dev->master;
+			struct sk_buff *skb;
+			while ((skb = skb_dequeue(&dev->npinfo->arp_tx)))
+				skb_queue_tail(&bond_dev->npinfo->arp_tx, skb);
+		}
+	}
+
 	service_arp_queue(dev->npinfo);
 
 	zap_completion_queue();
-- 
1.7.1

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