From 711ae7c7a810eb8bc92cac46041c996eb66dbd54 Mon Sep 17 00:00:00 2001 From: Zoltan Kiss Date: Sun, 24 Jul 2011 13:09:30 +0000 Subject: [PATCH] IPv4: Send gratuitous ARP for secondary IP addresses also [ Upstream commit b76d0789c92a816a5539dc14232a700b8d62a53a ] If a device event generates gratuitous ARP messages, only primary address is used for sending. This patch iterates through the whole list. Tested with 2 IP addresses configuration on bonding interface. Signed-off-by: Zoltan Kiss Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/ipv4/devinet.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index 0d4a184af16f..4155abca261b 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -1134,15 +1134,15 @@ static void inetdev_send_gratuitous_arp(struct net_device *dev, struct in_device *in_dev) { - struct in_ifaddr *ifa = in_dev->ifa_list; - - if (!ifa) - return; + struct in_ifaddr *ifa; - arp_send(ARPOP_REQUEST, ETH_P_ARP, - ifa->ifa_local, dev, - ifa->ifa_local, NULL, - dev->dev_addr, NULL); + for (ifa = in_dev->ifa_list; ifa; + ifa = ifa->ifa_next) { + arp_send(ARPOP_REQUEST, ETH_P_ARP, + ifa->ifa_local, dev, + ifa->ifa_local, NULL, + dev->dev_addr, NULL); + } } /* Called only under RTNL semaphore */ -- 2.39.5